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add lpcopen lpc11u6x files

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hathach
2018-12-01 01:34:13 +07:00
parent d246cc2e6c
commit c1186ad6a9
73 changed files with 22274 additions and 0 deletions
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209
hw/mcu/nxp/lpc_chip_11u6x/src/adc_11u6x.c Normal file
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/*
* @brief LPC11u6x ADC driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/* Set ADC interrupt bits (safe) */
void Chip_ADC_SetIntBits(LPC_ADC_T *pADC, uint32_t intMask)
{
uint32_t temp;
/* Read and write values may not be the same, write 0 to
undefined bits */
temp = pADC->INTEN & 0x07FFFFFF;
pADC->INTEN = temp | intMask;
}
/* Clear ADC interrupt bits (safe) */
void Chip_ADC_ClearIntBits(LPC_ADC_T *pADC, uint32_t intMask)
{
uint32_t temp;
/* Read and write values may not be the same, write 0 to
undefined bits */
temp = pADC->INTEN & 0x07FFFFFF;
pADC->INTEN = temp & ~intMask;
}
/* Set ADC threshold selection bits (safe) */
void Chip_ADC_SetTHRSELBits(LPC_ADC_T *pADC, uint32_t mask)
{
uint32_t temp;
/* Read and write values may not be the same, write 0 to
undefined bits */
temp = pADC->CHAN_THRSEL & 0x00000FFF;
pADC->CHAN_THRSEL = temp | mask;
}
/* Clear ADC threshold selection bits (safe) */
void Chip_ADC_ClearTHRSELBits(LPC_ADC_T *pADC, uint32_t mask)
{
uint32_t temp;
/* Read and write values may not be the same, write 0 to
undefined bits */
temp = pADC->CHAN_THRSEL & 0x00000FFF;
pADC->CHAN_THRSEL = temp & ~mask;
}
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initialize the ADC peripheral */
void Chip_ADC_Init(LPC_ADC_T *pADC, uint32_t flags)
{
/* Power up ADC and enable ADC base clock */
Chip_SYSCTL_PowerUp(SYSCTL_POWERDOWN_ADC_PD);
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_ADC);
/* Disable ADC interrupts */
pADC->INTEN = 0;
/* Set ADC control options */
pADC->CTRL = flags;
}
/* Start ADC calibration */
void Chip_ADC_StartCalibration(LPC_ADC_T *pADC)
{
uint32_t save_ADC_CTRL;
save_ADC_CTRL = pADC->CTRL;
Chip_ADC_SetClockRate(LPC_ADC, ADC_CALIBRATE_RATE);
pADC->CTRL = (pADC->CTRL | ADC_CR_CALMODEBIT) & ~ADC_CR_LPWRMODEBIT;
}
/**
* @brief Start ADC calibration
* @param pADC : The base of ADC peripheral on the chip
* @return TRUE if calibration is complete, otherwise FALSE.
*/
bool Chip_ADC_IsCalibrationDone(LPC_ADC_T *pADC)
{
return (bool) ((pADC->CTRL & ADC_CR_CALMODEBIT) == 0);
}
/* Shutdown ADC */
void Chip_ADC_DeInit(LPC_ADC_T *pADC)
{
pADC->INTEN = 0;
pADC->CTRL = 0;
/* Stop ADC clock and then power down ADC */
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_ADC);
Chip_SYSCTL_PowerDown(SYSCTL_POWERDOWN_ADC_PD);
}
/* Set ADC clock rate */
void Chip_ADC_SetClockRate(LPC_ADC_T *pADC, uint32_t rate)
{
Chip_ADC_SetDivider(pADC, ((Chip_Clock_GetSystemClockRate() + (rate>>2)) / rate) -1);
}
/* Helper function for safely setting ADC sequencer register bits */
void Chip_ADC_SetSequencerBits(LPC_ADC_T *pADC, ADC_SEQ_IDX_T seqIndex, uint32_t bits)
{
uint32_t temp;
/* Read sequencer register and mask off bits 20..25 */
temp = pADC->SEQ_CTRL[seqIndex] & ~(0x3F << 20);
/* OR in passed bits */
pADC->SEQ_CTRL[seqIndex] = temp | bits;
}
/* Helper function for safely clearing ADC sequencer register bits */
void Chip_ADC_ClearSequencerBits(LPC_ADC_T *pADC, ADC_SEQ_IDX_T seqIndex, uint32_t bits)
{
uint32_t temp;
/* Read sequencer register and mask off bits 20..25 */
temp = pADC->SEQ_CTRL[seqIndex] & ~(0x3F << 20);
/* OR in passed bits */
pADC->SEQ_CTRL[seqIndex] = temp & ~bits;
}
/* Enable interrupts in ADC (sequencers A/B and overrun) */
void Chip_ADC_EnableInt(LPC_ADC_T *pADC, uint32_t intMask)
{
Chip_ADC_SetIntBits(pADC, intMask);
}
/* Disable interrupts in ADC (sequencers A/B and overrun) */
void Chip_ADC_DisableInt(LPC_ADC_T *pADC, uint32_t intMask)
{
Chip_ADC_ClearIntBits(pADC, intMask);
}
/* Enable a threshold event interrupt in ADC */
void Chip_ADC_SetThresholdInt(LPC_ADC_T *pADC, uint8_t ch, ADC_INTEN_THCMP_T thInt)
{
int shiftIndex = 3 + (ch * 2);
/* Clear current bits first */
Chip_ADC_ClearIntBits(pADC, (ADC_INTEN_CMP_MASK << shiftIndex));
/* Set new threshold interrupt type */
Chip_ADC_SetIntBits(pADC, ((uint32_t) thInt << shiftIndex));
}
/* Select threshold 0 values for comparison for selected channels */
void Chip_ADC_SelectTH0Channels(LPC_ADC_T *pADC, uint32_t channels)
{
Chip_ADC_ClearTHRSELBits(pADC, channels);
}
/* Select threshold 1 value for comparison for selected channels */
void Chip_ADC_SelectTH1Channels(LPC_ADC_T *pADC, uint32_t channels)
{
Chip_ADC_SetTHRSELBits(pADC, channels);
}

84
hw/mcu/nxp/lpc_chip_11u6x/src/chip_11u6x.c Normal file
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/*
* @brief LPC11u6x Miscellaneous chip specific functions
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/* System Clock Frequency (Core Clock) */
uint32_t SystemCoreClock;
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Update system core clock rate, should be called if the system has
a clock rate change */
void SystemCoreClockUpdate(void)
{
/* CPU core speed */
SystemCoreClock = Chip_Clock_GetSystemClockRate();
}
void Chip_USB_Init(void)
{
/* Set USB PLL input to main oscillator */
Chip_Clock_SetUSBPLLSource(SYSCTL_USBPLLCLKSRC_MAINOSC);
/* Setup USB PLL (FCLKIN = 12MHz) * 4 = 48MHz
MSEL = 3 (this is pre-decremented), PSEL = 1 (for P = 2)
FCLKOUT = FCLKIN * (MSEL + 1) = 12MHz * 4 = 48MHz
FCCO = FCLKOUT * 2 * P = 48MHz * 2 * 2 = 192MHz (within FCCO range) */
Chip_Clock_SetupUSBPLL(3, 1);
/* Powerup USB PLL */
Chip_SYSCTL_PowerUp(SYSCTL_POWERDOWN_USBPLL_PD);
/* Wait for PLL to lock */
while (!Chip_Clock_IsUSBPLLLocked()) {}
/* enable USB main clock */
Chip_Clock_SetUSBClockSource(SYSCTL_USBCLKSRC_PLLOUT, 1);
/* Enable AHB clock to the USB block and USB RAM. */
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_USB);
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_USBRAM);
/* power UP USB Phy */
Chip_SYSCTL_PowerUp(SYSCTL_POWERDOWN_USBPAD_PD);
}

315
hw/mcu/nxp/lpc_chip_11u6x/src/clock_11u6x.c Normal file
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/*
* @brief LPC11U6X System clock control functions
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/* Inprecise clock rates for the watchdog oscillator */
STATIC const uint32_t wdtOSCRate[WDTLFO_OSC_4_60 + 1] = {
0, /* WDT_OSC_ILLEGAL */
600000, /* WDT_OSC_0_60 */
1050000, /* WDT_OSC_1_05 */
1400000, /* WDT_OSC_1_40 */
1750000, /* WDT_OSC_1_75 */
2100000, /* WDT_OSC_2_10 */
2400000, /* WDT_OSC_2_40 */
2700000, /* WDT_OSC_2_70 */
3000000, /* WDT_OSC_3_00 */
3250000, /* WDT_OSC_3_25 */
3500000, /* WDT_OSC_3_50 */
3750000, /* WDT_OSC_3_75 */
4000000, /* WDT_OSC_4_00 */
4200000, /* WDT_OSC_4_20 */
4400000, /* WDT_OSC_4_40 */
4600000 /* WDT_OSC_4_60 */
};
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/* Compute a WDT rate */
STATIC uint32_t Chip_Clock_GetWDTRate(uint32_t reg)
{
uint32_t div;
CHIP_WDTLFO_OSC_T clk;
/* Get WDT oscillator settings */
clk = (CHIP_WDTLFO_OSC_T) ((reg >> 5) & 0xF);
div = reg & 0x1F;
/* Compute clock rate and divided by divde value */
return wdtOSCRate[clk] / ((div + 1) << 1);
}
/* Compute a PLL frequency */
STATIC uint32_t Chip_Clock_GetPLLFreq(uint32_t PLLReg, uint32_t inputRate)
{
uint32_t msel = ((PLLReg & 0x1F) + 1);
return inputRate * msel;
}
/*****************************************************************************
* Public functions
****************************************************************************/
/* Get USART 1/2/3/4 UART base rate */
uint32_t Chip_Clock_GetUSARTNBaseClockRate(void)
{
uint64_t inclk;
uint32_t div;
div = (uint32_t) Chip_Clock_GetUSARTNBaseClockDiv();
if (div == 0) {
/* Divider is 0 so UART clock is disabled */
inclk = 0;
}
else {
uint32_t mult, divf;
/* Input clock into FRG block is the divided main system clock */
inclk = (uint64_t) (Chip_Clock_GetMainClockRate() / div);
divf = Chip_Clock_GetUSARTNFRGDivider();
if (divf == 0xFF) {
/* Fractional part is enabled, get multiplier */
mult = (uint32_t) Chip_Clock_GetUSARTNFRGMultiplier();
/* Get fractional error */
inclk = (inclk * 256) / (uint64_t) (256 + mult);
}
}
return (uint32_t) inclk;
}
/* Set USART 1/2/3/4 UART base rate */
uint32_t Chip_Clock_SetUSARTNBaseClockRate(uint32_t rate, bool fEnable)
{
uint32_t div, inclk;
/* Input clock into FRG block is the main system clock */
inclk = Chip_Clock_GetMainClockRate();
/* Get integer divider for coarse rate */
div = inclk / rate;
if (div == 0) {
div = 1;
}
/* Approximated rate with only integer divider */
Chip_Clock_SetUSARTNBaseClockDiv((uint8_t) div);
if (fEnable) {
uint32_t uart_fra_multiplier;
/* Reset FRG */
Chip_SYSCTL_PeriphReset(RESET_FRG);
/* Enable fractional divider */
Chip_Clock_SetUSARTNFRGDivider(0xFF);
/* Compute the fractional divisor (the lower byte is the
fractional portion) */
uart_fra_multiplier = ((inclk / div) * 256) / rate;
/* ...just the fractional portion (the lower byte) */
Chip_Clock_SetUSARTNFRGMultiplier((uint8_t) uart_fra_multiplier);
}
else {
/* Disable fractional generator and use integer divider only */
Chip_Clock_SetUSARTNFRGDivider(0);
}
return Chip_Clock_GetUSARTNBaseClockRate();
}
/* Set System PLL clock source */
void Chip_Clock_SetSystemPLLSource(CHIP_SYSCTL_PLLCLKSRC_T src)
{
LPC_SYSCTL->SYSPLLCLKSEL = (uint32_t) src;
LPC_SYSCTL->SYSPLLCLKUEN = 0;
LPC_SYSCTL->SYSPLLCLKUEN = 1;
}
/* Bypass System Oscillator and set oscillator frequency range */
void Chip_Clock_SetPLLBypass(bool bypass, bool highfr)
{
uint32_t ctrl = 0;
if (bypass) {
ctrl |= (1 << 0);
}
if (highfr) {
ctrl |= (1 << 1);
}
LPC_SYSCTL->SYSOSCCTRL = ctrl;
}
/* Set USB PLL clock source */
void Chip_Clock_SetUSBPLLSource(CHIP_SYSCTL_USBPLLCLKSRC_T src)
{
LPC_SYSCTL->USBPLLCLKSEL = (uint32_t) src;
LPC_SYSCTL->USBPLLCLKUEN = 0;
LPC_SYSCTL->USBPLLCLKUEN = 1;
}
/* Set main system clock source */
void Chip_Clock_SetMainClockSource(CHIP_SYSCTL_MAINCLKSRC_T src)
{
LPC_SYSCTL->MAINCLKSEL = (uint32_t) src;
LPC_SYSCTL->MAINCLKUEN = 0;
LPC_SYSCTL->MAINCLKUEN = 1;
}
/* Set USB clock source and divider */
void Chip_Clock_SetUSBClockSource(CHIP_SYSCTL_USBCLKSRC_T src, uint32_t div)
{
LPC_SYSCTL->USBCLKSEL = (uint32_t) src;
LPC_SYSCTL->USBCLKUEN = 0;
LPC_SYSCTL->USBCLKUEN = 1;
LPC_SYSCTL->USBCLKDIV = div;
}
/* Set CLKOUT clock source and divider */
void Chip_Clock_SetCLKOUTSource(CHIP_SYSCTL_CLKOUTSRC_T src, uint32_t div)
{
LPC_SYSCTL->CLKOUTSEL = (uint32_t) src;
LPC_SYSCTL->CLKOUTUEN = 0;
LPC_SYSCTL->CLKOUTUEN = 1;
LPC_SYSCTL->CLKOUTDIV = div;
}
/* Return estimated watchdog oscillator rate */
uint32_t Chip_Clock_GetWDTOSCRate(void)
{
return Chip_Clock_GetWDTRate(LPC_SYSCTL->WDTOSCCTRL);
}
/* Return System PLL input clock rate */
uint32_t Chip_Clock_GetSystemPLLInClockRate(void)
{
uint32_t clkRate;
switch ((CHIP_SYSCTL_PLLCLKSRC_T) (LPC_SYSCTL->SYSPLLCLKSEL & 0x3)) {
case SYSCTL_PLLCLKSRC_IRC:
clkRate = Chip_Clock_GetIntOscRate();
break;
case SYSCTL_PLLCLKSRC_MAINOSC:
clkRate = Chip_Clock_GetMainOscRate();
break;
case SYSCTL_PLLCLKSRC_RTC32K:
clkRate = Chip_Clock_GetRTCOscRate();
break;
default:
clkRate = 0;
}
return clkRate;
}
/* Return System PLL output clock rate */
uint32_t Chip_Clock_GetSystemPLLOutClockRate(void)
{
return Chip_Clock_GetPLLFreq(LPC_SYSCTL->SYSPLLCTRL,
Chip_Clock_GetSystemPLLInClockRate());
}
/* Return USB PLL input clock rate */
uint32_t Chip_Clock_GetUSBPLLInClockRate(void)
{
uint32_t clkRate;
switch ((CHIP_SYSCTL_USBPLLCLKSRC_T) (LPC_SYSCTL->USBPLLCLKSEL & 0x3)) {
case SYSCTL_PLLCLKSRC_IRC:
clkRate = Chip_Clock_GetIntOscRate();
break;
case SYSCTL_PLLCLKSRC_MAINOSC:
clkRate = Chip_Clock_GetMainOscRate();
break;
default:
clkRate = 0;
}
return clkRate;
}
/* Return USB PLL output clock rate */
uint32_t Chip_Clock_GetUSBPLLOutClockRate(void)
{
return Chip_Clock_GetPLLFreq(LPC_SYSCTL->USBPLLCTRL,
Chip_Clock_GetUSBPLLInClockRate());
}
/* Return main clock rate */
uint32_t Chip_Clock_GetMainClockRate(void)
{
uint32_t clkRate = 0;
switch ((CHIP_SYSCTL_MAINCLKSRC_T) (LPC_SYSCTL->MAINCLKSEL & 0x3)) {
case SYSCTL_MAINCLKSRC_IRC:
clkRate = Chip_Clock_GetIntOscRate();
break;
case SYSCTL_MAINCLKSRC_PLLIN:
clkRate = Chip_Clock_GetSystemPLLInClockRate();
break;
case SYSCTL_MAINCLKSRC_WDTOSC:
clkRate = Chip_Clock_GetWDTOSCRate();
break;
case SYSCTL_MAINCLKSRC_PLLOUT:
clkRate = Chip_Clock_GetSystemPLLOutClockRate();
break;
}
return clkRate;
}
/* Return system clock rate */
uint32_t Chip_Clock_GetSystemClockRate(void)
{
/* No point in checking for divide by 0 */
return Chip_Clock_GetMainClockRate() / LPC_SYSCTL->SYSAHBCLKDIV;
}

117
hw/mcu/nxp/lpc_chip_11u6x/src/crc_11u6x.c Normal file
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/*
* @brief LPC11u6x Cyclic Redundancy Check (CRC) Engine driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licenser disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initialize CRC engine */
void Chip_CRC_Init(void)
{
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_CRC);
}
/* De-initialize CRC engine */
void Chip_CRC_Deinit(void)
{
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_CRC);
}
/* Sets up the CRC engine with defaults based on the polynomial to be used */
void Chip_CRC_UseDefaultConfig(CRC_POLY_T poly)
{
switch (poly) {
case CRC_POLY_CRC16:
Chip_CRC_UseCRC16();
break;
case CRC_POLY_CRC32:
Chip_CRC_UseCRC32();
break;
case CRC_POLY_CCITT:
default:
Chip_CRC_UseCCITT();
break;
}
}
/* configure CRC engine and compute CCITT checksum from 8-bit data */
uint32_t Chip_CRC_CRC8(const uint8_t *data, uint32_t bytes)
{
Chip_CRC_UseCCITT();
while (bytes > 0) {
Chip_CRC_Write8(*data);
data++;
bytes--;
}
return Chip_CRC_Sum();
}
/* Convenience function for computing a standard CRC16 checksum from 16-bit data block */
uint32_t Chip_CRC_CRC16(const uint16_t *data, uint32_t hwords)
{
Chip_CRC_UseCRC16();
while (hwords > 0) {
Chip_CRC_Write16(*data);
data++;
hwords--;
}
return Chip_CRC_Sum();
}
/* Convenience function for computing a standard CRC32 checksum from 32-bit data block */
uint32_t Chip_CRC_CRC32(const uint32_t *data, uint32_t words)
{
Chip_CRC_UseCRC32();
while (words > 0) {
Chip_CRC_Write32(*data);
data++;
words--;
}
return Chip_CRC_Sum();
}

115
hw/mcu/nxp/lpc_chip_11u6x/src/dma_11u6x.c Normal file
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/*
* @brief LPC11u6x DMA chip driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/* DMA SRAM table - this can be optionally used with the Chip_DMA_SetSRAMBase()
function if a DMA SRAM table is needed. This table is correctly aligned for
the DMA controller. */
#if defined(__CC_ARM)
/* Keil alignement to 256 bytes */
__align(256) DMA_CHDESC_T Chip_DMA_Table[MAX_DMA_CHANNEL];
#endif /* defined (__CC_ARM) */
/* IAR support */
#if defined(__ICCARM__)
/* IAR EWARM alignement to 256 bytes */
#pragma data_alignment=256
DMA_CHDESC_T Chip_DMA_Table[MAX_DMA_CHANNEL];
#endif /* defined (__ICCARM__) */
#if defined( __GNUC__ )
/* GNU alignement to 256 bytes */
DMA_CHDESC_T Chip_DMA_Table[MAX_DMA_CHANNEL] __attribute__ ((aligned(256)));
#endif /* defined (__GNUC__) */
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Set DMA transfer register interrupt bits (safe) */
void Chip_DMA_SetTranBits(LPC_DMA_T *pDMA, DMA_CHID_T ch, uint32_t mask)
{
uint32_t temp;
/* Read and write values may not be the same, write 0 to
undefined bits */
temp = pDMA->DMACH[ch].XFERCFG & ~0xFC000CC0;
pDMA->DMACH[ch].XFERCFG = temp | mask;
}
/* Clear DMA transfer register interrupt bits (safe) */
void Chip_DMA_ClearTranBits(LPC_DMA_T *pDMA, DMA_CHID_T ch, uint32_t mask)
{
uint32_t temp;
/* Read and write values may not be the same, write 0 to
undefined bits */
temp = pDMA->DMACH[ch].XFERCFG & ~0xFC000CC0;
pDMA->DMACH[ch].XFERCFG = temp & ~mask;
}
/* Update the transfer size in an existing DMA channel transfer configuration */
void Chip_DMA_SetupChannelTransferSize(LPC_DMA_T *pDMA, DMA_CHID_T ch, uint32_t trans)
{
Chip_DMA_ClearTranBits(pDMA, ch, (0x3FF << 16));
Chip_DMA_SetTranBits(pDMA, ch, DMA_XFERCFG_XFERCOUNT(trans));
}
/* Sets up a DMA channel with the passed DMA transfer descriptor */
bool Chip_DMA_SetupTranChannel(LPC_DMA_T *pDMA, DMA_CHID_T ch, DMA_CHDESC_T *desc)
{
bool good = false;
DMA_CHDESC_T *pDesc = (DMA_CHDESC_T *) pDMA->SRAMBASE;
if ((Chip_DMA_GetActiveChannels(pDMA) & (1 << ch)) == 0) {
/* Channel is not active, so update the descriptor */
pDesc[ch] = *desc;
good = true;
}
return good;
}

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hw/mcu/nxp/lpc_chip_11u6x/src/eeprom.c Normal file
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/*
* @brief Common EEPROM support functions
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
#include "eeprom.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Write data to EEPROM */
uint8_t Chip_EEPROM_Write(uint32_t dstAdd, uint8_t *ptr, uint32_t byteswrt)
{
uint32_t command[5], result[4];
command[0] = IAP_EEPROM_WRITE;
command[1] = dstAdd;
command[2] = (uint32_t) ptr;
command[3] = byteswrt;
command[4] = SystemCoreClock / 1000;
iap_entry(command, result);
return result[0];
}
/* Read data from EEPROM */
uint8_t Chip_EEPROM_Read(uint32_t srcAdd, uint8_t *ptr, uint32_t bytesrd)
{
uint32_t command[5], result[4];
command[0] = IAP_EEPROM_READ;
command[1] = srcAdd;
command[2] = (uint32_t) ptr;
command[3] = bytesrd;
command[4] = SystemCoreClock / 1000;
iap_entry(command, result);
return result[0];
}

104
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/*
* @brief LPC11u6x GPIO driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initialize GPIO block */
void Chip_GPIO_Init(LPC_GPIO_T *pGPIO)
{
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_GPIO);
}
/* De-Initialize GPIO block */
void Chip_GPIO_DeInit(LPC_GPIO_T *pGPIO)
{
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_GPIO);
}
/* Set a GPIO direction */
void Chip_GPIO_WriteDirBit(LPC_GPIO_T *pGPIO, uint32_t port, uint8_t bit, bool setting)
{
if (setting) {
pGPIO->DIR[port] |= 1UL << bit;
}
else {
pGPIO->DIR[port] &= ~(1UL << bit);
}
}
/* Set Direction for a GPIO port */
void Chip_GPIO_SetDir(LPC_GPIO_T *pGPIO, uint8_t portNum, uint32_t bitValue, uint8_t out)
{
if (out) {
pGPIO->DIR[portNum] |= bitValue;
}
else {
pGPIO->DIR[portNum] &= ~bitValue;
}
}
/* Set GPIO direction for a single GPIO pin */
void Chip_GPIO_SetPinDIR(LPC_GPIO_T *pGPIO, uint8_t port, uint8_t pin, bool output)
{
if (output) {
Chip_GPIO_SetPinDIROutput(pGPIO, port, pin);
}
else {
Chip_GPIO_SetPinDIRInput(pGPIO, port, pin);
}
}
/* Set GPIO direction for a all selected GPIO pins to an input or output */
void Chip_GPIO_SetPortDIR(LPC_GPIO_T *pGPIO, uint8_t port, uint32_t pinMask, bool outSet)
{
if (outSet) {
Chip_GPIO_SetPortDIROutput(pGPIO, port, pinMask);
}
else {
Chip_GPIO_SetPortDIRInput(pGPIO, port, pinMask);
}
}

48
hw/mcu/nxp/lpc_chip_11u6x/src/gpiogroup_11u6x.c Normal file
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/*
* @brief LPC11U6x GPIO group driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/

554
hw/mcu/nxp/lpc_chip_11u6x/src/i2c_11u6x.c Normal file
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/*
* @brief LPC11u6x I2C driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/* Control flags */
#define I2C_CON_FLAGS (I2C_CON_AA | I2C_CON_SI | I2C_CON_STO | I2C_CON_STA)
#define LPC_I2Cx(id) ((i2c[id].ip))
#define SLAVE_ACTIVE(iic) (((iic)->flags & 0xFF00) != 0)
/* I2C common interface structure */
struct i2c_interface {
LPC_I2C_T *ip; /* IP base address of the I2C device */
CHIP_SYSCTL_CLOCK_T clk; /* Clock used by I2C */
I2C_EVENTHANDLER_T mEvent; /* Current active Master event handler */
I2C_EVENTHANDLER_T sEvent; /* Slave transfer events */
I2C_XFER_T *mXfer; /* Current active xfer pointer */
I2C_XFER_T *sXfer; /* Pointer to store xfer when bus is busy */
uint32_t flags; /* Flags used by I2C master and slave */
};
/* Slave interface structure */
struct i2c_slave_interface {
I2C_XFER_T *xfer;
I2C_EVENTHANDLER_T event;
};
/* I2C interfaces */
static struct i2c_interface i2c[I2C_NUM_INTERFACE] = {
{LPC_I2C0, SYSCTL_CLOCK_I2C0, Chip_I2C_EventHandler, NULL, NULL, NULL, 0},
{LPC_I2C1, SYSCTL_CLOCK_I2C1, Chip_I2C_EventHandler, NULL, NULL, NULL, 0}
};
static struct i2c_slave_interface i2c_slave[I2C_NUM_INTERFACE][I2C_SLAVE_NUM_INTERFACE];
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
STATIC INLINE void enableClk(I2C_ID_T id)
{
Chip_Clock_EnablePeriphClock(i2c[id].clk);
}
STATIC INLINE void disableClk(I2C_ID_T id)
{
Chip_Clock_DisablePeriphClock(i2c[id].clk);
}
/* Get the ADC Clock Rate */
STATIC INLINE uint32_t getClkRate(I2C_ID_T id)
{
return Chip_Clock_GetMainClockRate();
}
/* Enable I2C and start master transfer */
STATIC INLINE void startMasterXfer(LPC_I2C_T *pI2C)
{
/* Reset STA, STO, SI */
pI2C->CONCLR = I2C_CON_SI | I2C_CON_STO | I2C_CON_STA | I2C_CON_AA;
/* Enter to Master Transmitter mode */
pI2C->CONSET = I2C_CON_I2EN | I2C_CON_STA;
}
/* Enable I2C and enable slave transfers */
STATIC INLINE void startSlaverXfer(LPC_I2C_T *pI2C)
{
/* Reset STA, STO, SI */
pI2C->CONCLR = I2C_CON_SI | I2C_CON_STO | I2C_CON_STA;
/* Enter to Master Transmitter mode */
pI2C->CONSET = I2C_CON_I2EN | I2C_CON_AA;
}
/* Check if I2C bus is free */
STATIC INLINE int isI2CBusFree(LPC_I2C_T *pI2C)
{
return !(pI2C->CONSET & I2C_CON_STO);
}
/* Get current state of the I2C peripheral */
STATIC INLINE int getCurState(LPC_I2C_T *pI2C)
{
return (int) (pI2C->STAT & I2C_STAT_CODE_BITMASK);
}
/* Check if the active state belongs to master mode*/
STATIC INLINE int isMasterState(LPC_I2C_T *pI2C)
{
return getCurState(pI2C) < 0x60;
}
/* Set OWN slave address for specific slave ID */
STATIC void setSlaveAddr(LPC_I2C_T *pI2C, I2C_SLAVE_ID sid, uint8_t addr, uint8_t mask)
{
uint32_t index = (uint32_t) sid - 1;
pI2C->MASK[index] = mask;
if (sid == I2C_SLAVE_0) {
pI2C->ADR0 = addr;
}
else {
volatile uint32_t *abase = &pI2C->ADR1;
abase[index - 1] = addr;
}
}
/* Match the slave address */
STATIC int isSlaveAddrMatching(uint8_t addr1, uint8_t addr2, uint8_t mask)
{
mask |= 1;
return (addr1 & ~mask) == (addr2 & ~mask);
}
/* Get the index of the active slave */
STATIC I2C_SLAVE_ID lookupSlaveIndex(LPC_I2C_T *pI2C, uint8_t slaveAddr)
{
if (!(slaveAddr >> 1)) {
return I2C_SLAVE_GENERAL; /* General call address */
}
if (isSlaveAddrMatching(pI2C->ADR0, slaveAddr, pI2C->MASK[0])) {
return I2C_SLAVE_0;
}
if (isSlaveAddrMatching(pI2C->ADR1, slaveAddr, pI2C->MASK[1])) {
return I2C_SLAVE_1;
}
if (isSlaveAddrMatching(pI2C->ADR2, slaveAddr, pI2C->MASK[2])) {
return I2C_SLAVE_2;
}
if (isSlaveAddrMatching(pI2C->ADR3, slaveAddr, pI2C->MASK[3])) {
return I2C_SLAVE_3;
}
/* If everything is fine the code should never come here */
return I2C_SLAVE_GENERAL;
}
/* Master transfer state change handler handler */
int handleMasterXferState(LPC_I2C_T *pI2C, I2C_XFER_T *xfer)
{
uint32_t cclr = I2C_CON_FLAGS;
switch (getCurState(pI2C)) {
case 0x08: /* Start condition on bus */
case 0x10: /* Repeated start condition */
pI2C->DAT = (xfer->slaveAddr << 1) | (xfer->txSz == 0);
break;
/* Tx handling */
case 0x18: /* SLA+W sent and ACK received */
case 0x28: /* DATA sent and ACK received */
if (!xfer->txSz) {
cclr &= ~(xfer->rxSz ? I2C_CON_STA : I2C_CON_STO);
}
else {
pI2C->DAT = *xfer->txBuff++;
xfer->txSz--;
}
break;
/* Rx handling */
case 0x58: /* Data Received and NACK sent */
cclr &= ~I2C_CON_STO;
case 0x50: /* Data Received and ACK sent */
*xfer->rxBuff++ = pI2C->DAT;
xfer->rxSz--;
case 0x40: /* SLA+R sent and ACK received */
if (xfer->rxSz > 1) {
cclr &= ~I2C_CON_AA;
}
break;
/* NAK Handling */
case 0x20: /* SLA+W sent NAK received */
case 0x48: /* SLA+R sent NAK received */
xfer->status = I2C_STATUS_SLAVENAK;
cclr &= ~I2C_CON_STO;
break;
case 0x30: /* DATA sent NAK received */
xfer->status = I2C_STATUS_NAK;
cclr &= ~I2C_CON_STO;
break;
case 0x38: /* Arbitration lost */
xfer->status = I2C_STATUS_ARBLOST;
break;
/* Bus Error */
case 0x00:
xfer->status = I2C_STATUS_BUSERR;
cclr &= ~I2C_CON_STO;
}
/* Set clear control flags */
pI2C->CONSET = cclr ^ I2C_CON_FLAGS;
pI2C->CONCLR = cclr;
/* If stopped return 0 */
if (!(cclr & I2C_CON_STO) || (xfer->status == I2C_STATUS_ARBLOST)) {
if (xfer->status == I2C_STATUS_BUSY) {
xfer->status = I2C_STATUS_DONE;
}
return 0;
}
return 1;
}
/* Find the slave address of SLA+W or SLA+R */
I2C_SLAVE_ID getSlaveIndex(LPC_I2C_T *pI2C)
{
switch (getCurState(pI2C)) {
case 0x60:
case 0x68:
case 0x70:
case 0x78:
case 0xA8:
case 0xB0:
return lookupSlaveIndex(pI2C, pI2C->DAT);
}
/* If everything is fine code should never come here */
return I2C_SLAVE_GENERAL;
}
/* Slave state machine handler */
int handleSlaveXferState(LPC_I2C_T *pI2C, I2C_XFER_T *xfer)
{
uint32_t cclr = I2C_CON_FLAGS;
int ret = RET_SLAVE_BUSY;
xfer->status = I2C_STATUS_BUSY;
switch (getCurState(pI2C)) {
case 0x80: /* SLA: Data received + ACK sent */
case 0x90: /* GC: Data received + ACK sent */
*xfer->rxBuff++ = pI2C->DAT;
xfer->rxSz--;
ret = RET_SLAVE_RX;
if (xfer->rxSz > 1) {
cclr &= ~I2C_CON_AA;
}
break;
case 0x60: /* Own SLA+W received */
case 0x68: /* Own SLA+W received after losing arbitration */
case 0x70: /* GC+W received */
case 0x78: /* GC+W received after losing arbitration */
xfer->slaveAddr = pI2C->DAT & ~1;
if (xfer->rxSz > 1) {
cclr &= ~I2C_CON_AA;
}
break;
case 0xA8: /* SLA+R received */
case 0xB0: /* SLA+R received after losing arbitration */
xfer->slaveAddr = pI2C->DAT & ~1;
case 0xB8: /* DATA sent and ACK received */
pI2C->DAT = *xfer->txBuff++;
xfer->txSz--;
if (xfer->txSz > 0) {
cclr &= ~I2C_CON_AA;
}
ret = RET_SLAVE_TX;
break;
case 0xC0: /* Data transmitted and NAK received */
case 0xC8: /* Last data transmitted and ACK received */
case 0x88: /* SLA: Data received + NAK sent */
case 0x98: /* GC: Data received + NAK sent */
case 0xA0: /* STOP/Repeated START condition received */
ret = RET_SLAVE_IDLE;
cclr &= ~I2C_CON_AA;
xfer->status = I2C_STATUS_DONE;
if (xfer->slaveAddr & 1) {
cclr &= ~I2C_CON_STA;
}
break;
}
/* Set clear control flags */
pI2C->CONSET = cclr ^ I2C_CON_FLAGS;
pI2C->CONCLR = cclr;
return ret;
}
/*****************************************************************************
* Public functions
****************************************************************************/
/* Chip event handler interrupt based */
void Chip_I2C_EventHandler(I2C_ID_T id, I2C_EVENT_T event)
{
struct i2c_interface *iic = &i2c[id];
volatile I2C_STATUS_T *stat;
/* Only WAIT event needs to be handled */
if (event != I2C_EVENT_WAIT) {
return;
}
stat = &iic->mXfer->status;
/* Wait for the status to change */
while (*stat == I2C_STATUS_BUSY) {}
}
/* Chip polling event handler */
void Chip_I2C_EventHandlerPolling(I2C_ID_T id, I2C_EVENT_T event)
{
struct i2c_interface *iic = &i2c[id];
volatile I2C_STATUS_T *stat;
/* Only WAIT event needs to be handled */
if (event != I2C_EVENT_WAIT) {
return;
}
stat = &iic->mXfer->status;
/* Call the state change handler till xfer is done */
while (*stat == I2C_STATUS_BUSY) {
if (Chip_I2C_IsStateChanged(id)) {
Chip_I2C_MasterStateHandler(id);
}
}
}
/* Initializes the LPC_I2C peripheral with specified parameter */
void Chip_I2C_Init(I2C_ID_T id)
{
enableClk(id);
/* Set I2C operation to default */
LPC_I2Cx(id)->CONCLR = (I2C_CON_AA | I2C_CON_SI | I2C_CON_STA | I2C_CON_I2EN);
}
/* De-initializes the I2C peripheral registers to their default reset values */
void Chip_I2C_DeInit(I2C_ID_T id)
{
/* Disable I2C control */
LPC_I2Cx(id)->CONCLR = I2C_CON_I2EN | I2C_CON_SI | I2C_CON_STO | I2C_CON_STA | I2C_CON_AA;
disableClk(id);
}
/* Set up clock rate for LPC_I2C peripheral */
void Chip_I2C_SetClockRate(I2C_ID_T id, uint32_t clockrate)
{
uint32_t SCLValue;
SCLValue = (getClkRate(id) / clockrate);
LPC_I2Cx(id)->SCLH = (uint32_t) (SCLValue >> 1);
LPC_I2Cx(id)->SCLL = (uint32_t) (SCLValue - LPC_I2Cx(id)->SCLH);
}
/* Get current clock rate for LPC_I2C peripheral */
uint32_t Chip_I2C_GetClockRate(I2C_ID_T id)
{
return getClkRate(id) / (LPC_I2Cx(id)->SCLH + LPC_I2Cx(id)->SCLL);
}
/* Set the master event handler */
int Chip_I2C_SetMasterEventHandler(I2C_ID_T id, I2C_EVENTHANDLER_T event)
{
struct i2c_interface *iic = &i2c[id];
if (!iic->mXfer) {
iic->mEvent = event;
}
return iic->mEvent == event;
}
/* Get the master event handler */
I2C_EVENTHANDLER_T Chip_I2C_GetMasterEventHandler(I2C_ID_T id)
{
return i2c[id].mEvent;
}
/* Transmit and Receive data in master mode */
int Chip_I2C_MasterTransfer(I2C_ID_T id, I2C_XFER_T *xfer)
{
struct i2c_interface *iic = &i2c[id];
iic->mEvent(id, I2C_EVENT_LOCK);
xfer->status = I2C_STATUS_BUSY;
iic->mXfer = xfer;
/* If slave xfer not in progress */
if (!iic->sXfer) {
startMasterXfer(iic->ip);
}
iic->mEvent(id, I2C_EVENT_WAIT);
iic->mXfer = 0;
/* Wait for stop condition to appear on bus */
while (!isI2CBusFree(iic->ip)) {}
/* Start slave if one is active */
if (SLAVE_ACTIVE(iic)) {
startSlaverXfer(iic->ip);
}
iic->mEvent(id, I2C_EVENT_UNLOCK);
return (int) xfer->status;
}
/* Master tx only */
int Chip_I2C_MasterSend(I2C_ID_T id, uint8_t slaveAddr, const uint8_t *buff, uint8_t len)
{
I2C_XFER_T xfer = {0};
xfer.slaveAddr = slaveAddr;
xfer.txBuff = buff;
xfer.txSz = len;
while (Chip_I2C_MasterTransfer(id, &xfer) == I2C_STATUS_ARBLOST) {}
return len - xfer.txSz;
}
/* Transmit one byte and receive an array of bytes after a repeated start condition is generated in Master mode.
* This function is useful for communicating with the I2C slave registers
*/
int Chip_I2C_MasterCmdRead(I2C_ID_T id, uint8_t slaveAddr, uint8_t cmd, uint8_t *buff, int len)
{
I2C_XFER_T xfer = {0};
xfer.slaveAddr = slaveAddr;
xfer.txBuff = &cmd;
xfer.txSz = 1;
xfer.rxBuff = buff;
xfer.rxSz = len;
while (Chip_I2C_MasterTransfer(id, &xfer) == I2C_STATUS_ARBLOST) {}
return len - xfer.rxSz;
}
/* Sequential master read */
int Chip_I2C_MasterRead(I2C_ID_T id, uint8_t slaveAddr, uint8_t *buff, int len)
{
I2C_XFER_T xfer = {0};
xfer.slaveAddr = slaveAddr;
xfer.rxBuff = buff;
xfer.rxSz = len;
while (Chip_I2C_MasterTransfer(id, &xfer) == I2C_STATUS_ARBLOST) {}
return len - xfer.rxSz;
}
/* Check if master state is active */
int Chip_I2C_IsMasterActive(I2C_ID_T id)
{
return isMasterState(i2c[id].ip);
}
/* State change handler for master transfer */
void Chip_I2C_MasterStateHandler(I2C_ID_T id)
{
if (!handleMasterXferState(i2c[id].ip, i2c[id].mXfer)) {
i2c[id].mEvent(id, I2C_EVENT_DONE);
}
}
/* Setup slave function */
void Chip_I2C_SlaveSetup(I2C_ID_T id,
I2C_SLAVE_ID sid,
I2C_XFER_T *xfer,
I2C_EVENTHANDLER_T event,
uint8_t addrMask)
{
struct i2c_interface *iic = &i2c[id];
struct i2c_slave_interface *si2c = &i2c_slave[id][sid];
si2c->xfer = xfer;
si2c->event = event;
/* Set up the slave address */
if (sid != I2C_SLAVE_GENERAL) {
setSlaveAddr(iic->ip, sid, xfer->slaveAddr, addrMask);
}
if (!SLAVE_ACTIVE(iic) && !iic->mXfer) {
startSlaverXfer(iic->ip);
}
iic->flags |= 1 << (sid + 8);
}
/* I2C Slave event handler */
void Chip_I2C_SlaveStateHandler(I2C_ID_T id)
{
int ret;
struct i2c_interface *iic = &i2c[id];
/* Get the currently addressed slave */
if (!iic->sXfer) {
struct i2c_slave_interface *si2c;
I2C_SLAVE_ID sid = getSlaveIndex(iic->ip);
si2c = &i2c_slave[id][sid];
iic->sXfer = si2c->xfer;
iic->sEvent = si2c->event;
}
iic->sXfer->slaveAddr |= iic->mXfer != 0;
ret = handleSlaveXferState(iic->ip, iic->sXfer);
if (ret) {
if (iic->sXfer->status == I2C_STATUS_DONE) {
iic->sXfer = 0;
}
iic->sEvent(id, (I2C_EVENT_T) ret);
}
}
/* Disable I2C device */
void Chip_I2C_Disable(I2C_ID_T id)
{
LPC_I2Cx(id)->CONCLR = I2C_I2CONCLR_I2ENC;
}
/* State change checking */
int Chip_I2C_IsStateChanged(I2C_ID_T id)
{
return (LPC_I2Cx(id)->CONSET & I2C_CON_SI) != 0;
}

197
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/*
* @brief LPC11u6x I2C master driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/* Control flags */
#define I2C_CON_FLAGS (I2C_CON_AA | I2C_CON_SI | I2C_CON_STO | I2C_CON_STA)
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initializes the LPC_I2C peripheral with specified parameter */
void Chip_I2CM_Init(LPC_I2C_T *pI2C)
{
CHIP_SYSCTL_CLOCK_T clk = SYSCTL_CLOCK_I2C0;
CHIP_SYSCTL_PERIPH_RESET_T rst = RESET_I2C0;
if (pI2C == LPC_I2C1) {
clk = SYSCTL_CLOCK_I2C1;
rst = RESET_I2C1;
}
/* Enable I2C clock */
Chip_Clock_EnablePeriphClock(clk);
/* Peripheral reset control to I2C */
Chip_SYSCTL_PeriphReset(rst);
}
/* De-initializes the I2C peripheral registers to their default reset values */
void Chip_I2CM_DeInit(LPC_I2C_T *pI2C)
{
CHIP_SYSCTL_CLOCK_T clk = SYSCTL_CLOCK_I2C0;
if (pI2C == LPC_I2C1) {
clk = SYSCTL_CLOCK_I2C1;
}
/* Disable I2C clock */
Chip_Clock_DisablePeriphClock(clk);
}
/* Set up bus speed for LPC_I2C interface */
void Chip_I2CM_SetBusSpeed(LPC_I2C_T *pI2C, uint32_t busSpeed)
{
uint32_t clockDiv = (Chip_Clock_GetMainClockRate() / busSpeed);
Chip_I2CM_SetDutyCycle(pI2C, (clockDiv >> 1), (clockDiv - (clockDiv >> 1)));
}
/* Master transfer state change handler handler */
uint32_t Chip_I2CM_XferHandler(LPC_I2C_T *pI2C, I2CM_XFER_T *xfer)
{
uint32_t cclr = I2C_CON_FLAGS;
switch (Chip_I2CM_GetCurState(pI2C)) {
case 0x08: /* Start condition on bus */
case 0x10: /* Repeated start condition */
pI2C->DAT = (xfer->slaveAddr << 1) | (xfer->txSz == 0);
break;
/* Tx handling */
case 0x20: /* SLA+W sent NAK received */
case 0x30: /* DATA sent NAK received */
if ((xfer->options & I2CM_XFER_OPTION_IGNORE_NACK) == 0) {
xfer->status = I2CM_STATUS_NAK;
cclr &= ~I2C_CON_STO;
break;
}
case 0x18: /* SLA+W sent and ACK received */
case 0x28: /* DATA sent and ACK received */
if (!xfer->txSz) {
if (xfer->rxSz) {
cclr &= ~I2C_CON_STA;
}
else {
xfer->status = I2CM_STATUS_OK;
cclr &= ~I2C_CON_STO;
}
}
else {
pI2C->DAT = *xfer->txBuff++;
xfer->txSz--;
}
break;
/* Rx handling */
case 0x58: /* Data Received and NACK sent */
case 0x50: /* Data Received and ACK sent */
*xfer->rxBuff++ = pI2C->DAT;
xfer->rxSz--;
case 0x40: /* SLA+R sent and ACK received */
if ((xfer->rxSz > 1) || (xfer->options & I2CM_XFER_OPTION_LAST_RX_ACK)) {
cclr &= ~I2C_CON_AA;
}
if (xfer->rxSz == 0) {
xfer->status = I2CM_STATUS_OK;
cclr &= ~I2C_CON_STO;
}
break;
/* NAK Handling */
case 0x48: /* SLA+R sent NAK received */
xfer->status = I2CM_STATUS_SLAVE_NAK;
cclr &= ~I2C_CON_STO;
break;
case 0x38: /* Arbitration lost */
xfer->status = I2CM_STATUS_ARBLOST;
break;
case 0x00: /* Bus Error */
xfer->status = I2CM_STATUS_BUS_ERROR;
cclr &= ~I2C_CON_STO;
break;
default:
xfer->status = I2CM_STATUS_ERROR;
cclr &= ~I2C_CON_STO;
break;
}
/* Set clear control flags */
pI2C->CONSET = cclr ^ I2C_CON_FLAGS;
pI2C->CONCLR = cclr;
return xfer->status != I2CM_STATUS_BUSY;
}
/* Transmit and Receive data in master mode */
void Chip_I2CM_Xfer(LPC_I2C_T *pI2C, I2CM_XFER_T *xfer)
{
/* set the transfer status as busy */
xfer->status = I2CM_STATUS_BUSY;
/* Clear controller state. */
Chip_I2CM_ResetControl(pI2C);
/* Enter to Master Transmitter mode */
Chip_I2CM_SendStart(pI2C);
}
/* Transmit and Receive data in master mode */
uint32_t Chip_I2CM_XferBlocking(LPC_I2C_T *pI2C, I2CM_XFER_T *xfer)
{
uint32_t ret = 0;
/* start transfer */
Chip_I2CM_Xfer(pI2C, xfer);
while (ret == 0) {
/* wait for status change interrupt */
while ( Chip_I2CM_StateChanged(pI2C) == 0) {}
/* call state change handler */
ret = Chip_I2CM_XferHandler(pI2C, xfer);
}
return ret;
}

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/*
* @brief Common FLASH support functions
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Prepare sector for write operation */
uint8_t Chip_IAP_PreSectorForReadWrite(uint32_t strSector, uint32_t endSector)
{
uint32_t command[5], result[4];
command[0] = IAP_PREWRRITE_CMD;
command[1] = strSector;
command[2] = endSector;
iap_entry(command, result);
return result[0];
}
/* Copy RAM to flash */
uint8_t Chip_IAP_CopyRamToFlash(uint32_t dstAdd, uint32_t *srcAdd, uint32_t byteswrt)
{
uint32_t command[5], result[4];
command[0] = IAP_WRISECTOR_CMD;
command[1] = dstAdd;
command[2] = (uint32_t) srcAdd;
command[3] = byteswrt;
command[4] = SystemCoreClock / 1000;
iap_entry(command, result);
return result[0];
}
/* Erase sector */
uint8_t Chip_IAP_EraseSector(uint32_t strSector, uint32_t endSector)
{
uint32_t command[5], result[4];
command[0] = IAP_ERSSECTOR_CMD;
command[1] = strSector;
command[2] = endSector;
command[3] = SystemCoreClock / 1000;
iap_entry(command, result);
return result[0];
}
/* Blank check sector */
uint8_t Chip_IAP_BlankCheckSector(uint32_t strSector, uint32_t endSector)
{
uint32_t command[5], result[4];
command[0] = IAP_BLANK_CHECK_SECTOR_CMD;
command[1] = strSector;
command[2] = endSector;
iap_entry(command, result);
return result[0];
}
/* Read part identification number */
uint32_t Chip_IAP_ReadPID()
{
uint32_t command[5], result[4];
command[0] = IAP_REPID_CMD;
iap_entry(command, result);
return result[1];
}
/* Read boot code version number */
uint8_t Chip_IAP_ReadBootCode()
{
uint32_t command[5], result[4];
command[0] = IAP_READ_BOOT_CODE_CMD;
iap_entry(command, result);
return result[0];
}
/* IAP compare */
uint8_t Chip_IAP_Compare(uint32_t dstAdd, uint32_t srcAdd, uint32_t bytescmp)
{
uint32_t command[5], result[4];
command[0] = IAP_COMPARE_CMD;
command[1] = dstAdd;
command[2] = srcAdd;
command[3] = bytescmp;
iap_entry(command, result);
return result[0];
}
/* Reinvoke ISP */
uint8_t Chip_IAP_ReinvokeISP()
{
uint32_t command[5], result[4];
command[0] = IAP_REINVOKE_ISP_CMD;
iap_entry(command, result);
return result[0];
}
/* Read the unique ID */
uint32_t Chip_IAP_ReadUID()
{
uint32_t command[5], result[4];
command[0] = IAP_READ_UID_CMD;
iap_entry(command, result);
return result[1];
}
/* Erase page */
uint8_t Chip_IAP_ErasePage(uint32_t strPage, uint32_t endPage)
{
uint32_t command[5], result[4];
command[0] = IAP_ERASE_PAGE_CMD;
command[1] = strPage;
command[2] = endPage;
command[3] = SystemCoreClock / 1000;
iap_entry(command, result);
return result[0];
}

110
hw/mcu/nxp/lpc_chip_11u6x/src/iocon_11u6x.c Normal file
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/*
* @brief LPC11u6x IOCON driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Sets I/O Control pin mux */
void Chip_IOCON_PinMuxSet(LPC_IOCON_T *pIOCON, uint8_t port, uint8_t pin, uint32_t modefunc)
{
switch (port) {
case 0:
pIOCON->PIO0[pin] = modefunc;
break;
case 1:
pIOCON->PIO1[pin] = modefunc;
break;
case 2:
if (pin >= 2) {
pIOCON->PIO2B[pin - 2] = modefunc;
}
else {
pIOCON->PIO2A[pin] = modefunc;
}
break;
default:
break;
}
}
/*Set all I/O Control pin muxing*/
void Chip_IOCON_SetPinMuxing(LPC_IOCON_T *pIOCON, const PINMUX_GRP_T* pinArray, uint32_t arrayLength)
{
uint32_t ix;
for (ix = 0; ix < arrayLength; ix++ ) {
Chip_IOCON_PinMuxSet(pIOCON, pinArray[ix].port, pinArray[ix].pin, pinArray[ix].modefunc);
}
}
/* Return value of I/O Control pin mux */
uint32_t Chip_IOCON_GetPinMux(LPC_IOCON_T *pIOCON, uint8_t port, uint8_t pin)
{
uint32_t iocon_value = 0;
switch (port) {
case 0:
iocon_value = pIOCON->PIO0[pin];
break;
case 1:
iocon_value = pIOCON->PIO1[pin];
break;
case 2:
if (pin >= 2) {
iocon_value = pIOCON->PIO2B[pin - 2];
}
else {
iocon_value = pIOCON->PIO2A[pin];
}
break;
default:
break;
}
return iocon_value;
}

92
hw/mcu/nxp/lpc_chip_11u6x/src/mtb.c Normal file
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//*****************************************************************************
// +--+
// | ++----+
// +-++ |
// | |
// +-+--+ |
// | +--+--+
// +----+ Copyright (c) 2013 Code Red Technologies Ltd.
//
// mtb.c
//
// Optionally defines an array to be used as a buffer for Micro Trace
// Buffer (MTB) instruction trace on Cortex-M0+ parts
//
// Version : 130502
//
// Software License Agreement
//
// The software is owned by Code Red Technologies and/or its suppliers, and is
// protected under applicable copyright laws. All rights are reserved. Any
// use in violation of the foregoing restrictions may subject the user to criminal
// sanctions under applicable laws, as well as to civil liability for the breach
// of the terms and conditions of this license.
//
// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
// USE OF THIS SOFTWARE FOR COMMERCIAL DEVELOPMENT AND/OR EDUCATION IS SUBJECT
// TO A CURRENT END USER LICENSE AGREEMENT (COMMERCIAL OR EDUCATIONAL) WITH
// CODE RED TECHNOLOGIES LTD.
//
//*****************************************************************************
/*******************************************************************
* Symbols controlling behavior of this code...
*
* __MTB_DISABLE
* If this symbol is defined, then the buffer array for the MTB
* will not be created.
*
* __MTB_BUFFER_SIZE
* Symbol specifying the sizer of the buffer array for the MTB.
* This must be a power of 2 in size, and fit into the available
* RAM. The MTB buffer will also be aligned to its 'size'
* boundary and be placed at the start of a RAM bank (which
* should ensure minimal or zero padding due to alignment).
*
* __MTB_RAM_BANK
* Allows MTB Buffer to be placed into specific RAM bank. When
* this is not defined, the "default" (first if there are
* several) RAM bank is used.
*******************************************************************/
// Ignore with none Code Red tools
#if defined (__CODE_RED)
// Allow MTB to be removed by setting a define (via command line)
#if !defined (__MTB_DISABLE)
// Allow for MTB buffer size being set by define set via command line
// Otherwise provide small default buffer
#if !defined (__MTB_BUFFER_SIZE)
#define __MTB_BUFFER_SIZE 128
#endif
// Check that buffer size requested is >0 bytes in size
#if (__MTB_BUFFER_SIZE > 0)
// Pull in MTB related macros
#include <cr_mtb_buffer.h>
// Check if MYTB buffer is to be placed in specific RAM bank
#if defined(__MTB_RAM_BANK)
// Place MTB buffer into explicit bank of RAM
__CR_MTB_BUFFER_EXT(__MTB_BUFFER_SIZE,__MTB_RAM_BANK);
#else
// Place MTB buffer into 'default' bank of RAM
__CR_MTB_BUFFER(__MTB_BUFFER_SIZE);
#endif // defined(__MTB_RAM_BANK)
#endif // (__MTB_BUFFER_SIZE > 0)
#endif // !defined (__MTB_DISABLE)
#endif // defined (__CODE_RED)

77
hw/mcu/nxp/lpc_chip_11u6x/src/pinint_11u6x.c Normal file
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/*
* @brief LPC11u6x Pin Interrupt and Pattern Match driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licenser disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Set source for pattern match engine */
void Chip_PININT_SetPatternMatchSrc(LPC_PIN_INT_T *pPININT, uint8_t chan, Chip_PININT_BITSLICE_T slice)
{
uint32_t pmsrc_reg;
/* Source source for pattern matching */
pmsrc_reg = pPININT->PMSRC & ~(PININT_SRC_BITSOURCE_MASK << (PININT_SRC_BITSOURCE_START + (slice * 3)));
pPININT->PMSRC = pmsrc_reg | (chan << (PININT_SRC_BITSOURCE_START + (slice * 3)));
}
/* Configure Pattern match engine */
void Chip_PININT_SetPatternMatchConfig(LPC_PIN_INT_T *pPININT, Chip_PININT_BITSLICE_T slice,
Chip_PININT_BITSLICE_CFG_T slice_cfg, bool end_point)
{
uint32_t pmcfg_reg;
/* Configure bit slice configuration */
pmcfg_reg = pPININT->PMCFG & ~(PININT_SRC_BITCFG_MASK << (PININT_SRC_BITCFG_START + (slice * 3)));
pPININT->PMCFG = pmcfg_reg | (slice_cfg << (PININT_SRC_BITCFG_START + (slice * 3)));
/* If end point is true, enable the bits */
if (end_point == true) {
/* By default slice 7 is final component */
if (slice != PININTBITSLICE7) {
pPININT->PMCFG |= (0x1 << slice);
}
}
}

105
hw/mcu/nxp/lpc_chip_11u6x/src/pmu_11u6x.c Normal file
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/*
* @brief LPC11u6x PMU chip driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Enter MCU Sleep mode */
void Chip_PMU_SleepState(LPC_PMU_T *pPMU)
{
pPMU->PCON = PMU_PCON_PM_SLEEP;
/* Enter sleep mode */
__WFI();
}
/* Enter MCU Deep Sleep mode */
void Chip_PMU_DeepSleepState(LPC_PMU_T *pPMU)
{
SCB->SCR |= (1UL << SCB_SCR_SLEEPDEEP_Pos);
pPMU->PCON = PMU_PCON_PM_DEEPSLEEP;
/* Enter sleep mode */
__WFI();
}
/* Enter MCU Power down mode */
void Chip_PMU_PowerDownState(LPC_PMU_T *pPMU)
{
SCB->SCR |= (1UL << SCB_SCR_SLEEPDEEP_Pos);
pPMU->PCON = PMU_PCON_PM_POWERDOWN;
/* Enter sleep mode */
__WFI();
}
/* Enter MCU Deep Power down mode */
void Chip_PMU_DeepPowerDownState(LPC_PMU_T *pPMU)
{
SCB->SCR |= (1UL << SCB_SCR_SLEEPDEEP_Pos);
pPMU->PCON = PMU_PCON_PM_DEEPPOWERDOWN;
/* Enter sleep mode */
__WFI();
}
/* Put some of the peripheral in sleep mode */
void Chip_PMU_Sleep(LPC_PMU_T *pPMU, CHIP_PMU_MCUPOWER_T SleepMode)
{
if (SleepMode == PMU_MCU_DEEP_SLEEP) {
Chip_PMU_DeepSleepState(pPMU);
}
else if (SleepMode == PMU_MCU_POWER_DOWN) {
Chip_PMU_PowerDownState(pPMU);
}
else if (SleepMode == PMU_MCU_DEEP_PWRDOWN) {
Chip_PMU_DeepPowerDownState(pPMU);
}
else {
/* PMU_MCU_SLEEP */
Chip_PMU_SleepState(pPMU);
}
}

167
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/*
* @brief Common ring buffer support functions
*
* @note
* Copyright(C) NXP Semiconductors, 2012
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include <string.h>
#include "ring_buffer.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
#define RB_INDH(rb) ((rb)->head & ((rb)->count - 1))
#define RB_INDT(rb) ((rb)->tail & ((rb)->count - 1))
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initialize ring buffer */
int RingBuffer_Init(RINGBUFF_T *RingBuff, void *buffer, int itemSize, int count)
{
RingBuff->data = buffer;
RingBuff->count = count;
RingBuff->itemSz = itemSize;
RingBuff->head = RingBuff->tail = 0;
return 1;
}
/* Insert a single item into Ring Buffer */
int RingBuffer_Insert(RINGBUFF_T *RingBuff, const void *data)
{
uint8_t *ptr = RingBuff->data;
/* We cannot insert when queue is full */
if (RingBuffer_IsFull(RingBuff))
return 0;
ptr += RB_INDH(RingBuff) * RingBuff->itemSz;
memcpy(ptr, data, RingBuff->itemSz);
RingBuff->head++;
return 1;
}
/* Insert multiple items into Ring Buffer */
int RingBuffer_InsertMult(RINGBUFF_T *RingBuff, const void *data, int num)
{
uint8_t *ptr = RingBuff->data;
int cnt1, cnt2;
/* We cannot insert when queue is full */
if (RingBuffer_IsFull(RingBuff))
return 0;
/* Calculate the segment lengths */
cnt1 = cnt2 = RingBuffer_GetFree(RingBuff);
if (RB_INDH(RingBuff) + cnt1 >= RingBuff->count)
cnt1 = RingBuff->count - RB_INDH(RingBuff);
cnt2 -= cnt1;
cnt1 = MIN(cnt1, num);
num -= cnt1;
cnt2 = MIN(cnt2, num);
num -= cnt2;
/* Write segment 1 */
ptr += RB_INDH(RingBuff) * RingBuff->itemSz;
memcpy(ptr, data, cnt1 * RingBuff->itemSz);
RingBuff->head += cnt1;
/* Write segment 2 */
ptr = (uint8_t *) RingBuff->data + RB_INDH(RingBuff) * RingBuff->itemSz;
data = (const uint8_t *) data + cnt1 * RingBuff->itemSz;
memcpy(ptr, data, cnt2 * RingBuff->itemSz);
RingBuff->head += cnt2;
return cnt1 + cnt2;
}
/* Pop single item from Ring Buffer */
int RingBuffer_Pop(RINGBUFF_T *RingBuff, void *data)
{
uint8_t *ptr = RingBuff->data;
/* We cannot pop when queue is empty */
if (RingBuffer_IsEmpty(RingBuff))
return 0;
ptr += RB_INDT(RingBuff) * RingBuff->itemSz;
memcpy(data, ptr, RingBuff->itemSz);
RingBuff->tail++;
return 1;
}
/* Pop multiple items from Ring buffer */
int RingBuffer_PopMult(RINGBUFF_T *RingBuff, void *data, int num)
{
uint8_t *ptr = RingBuff->data;
int cnt1, cnt2;
/* We cannot insert when queue is empty */
if (RingBuffer_IsEmpty(RingBuff))
return 0;
/* Calculate the segment lengths */
cnt1 = cnt2 = RingBuffer_GetCount(RingBuff);
if (RB_INDT(RingBuff) + cnt1 >= RingBuff->count)
cnt1 = RingBuff->count - RB_INDT(RingBuff);
cnt2 -= cnt1;
cnt1 = MIN(cnt1, num);
num -= cnt1;
cnt2 = MIN(cnt2, num);
num -= cnt2;
/* Write segment 1 */
ptr += RB_INDT(RingBuff) * RingBuff->itemSz;
memcpy(data, ptr, cnt1 * RingBuff->itemSz);
RingBuff->tail += cnt1;
/* Write segment 2 */
ptr = (uint8_t *) RingBuff->data + RB_INDT(RingBuff) * RingBuff->itemSz;
data = (uint8_t *) data + cnt1 * RingBuff->itemSz;
memcpy(data, ptr, cnt2 * RingBuff->itemSz);
RingBuff->tail += cnt2;
return cnt1 + cnt2;
}

79
hw/mcu/nxp/lpc_chip_11u6x/src/romdiv_11u6x.c Normal file
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/*
* @brief Routines to overload "/" and "%" operator in C using ROM based divider library
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
#if !defined( __GNUC__ )
/* Redirector of signed 32 bit integer divider to ROM routine */
int __aeabi_idiv(int numerator, int denominator)
{
ROM_DIV_API_T const *pROMDiv = LPC_ROM_API->divApiBase;
return pROMDiv->sidiv(numerator, denominator);
}
/* Redirector of unsigned 32 bit integer divider to ROM routine */
unsigned __aeabi_uidiv(unsigned numerator, unsigned denominator)
{
ROM_DIV_API_T const *pROMDiv = LPC_ROM_API->divApiBase;
return pROMDiv->uidiv(numerator, denominator);
}
/* Redirector of signed 32 bit integer divider with reminder to ROM routine */
__value_in_regs IDIV_RETURN_T __aeabi_idivmod(int numerator, int denominator)
{
ROM_DIV_API_T const *pROMDiv = LPC_ROM_API->divApiBase;
return pROMDiv->sidivmod(numerator, denominator);
}
/* Redirector of unsigned 32 bit integer divider with reminder to ROM routine */
__value_in_regs UIDIV_RETURN_T __aeabi_uidivmod(unsigned numerator, unsigned denominator)
{
ROM_DIV_API_T const *pROMDiv = LPC_ROM_API->divApiBase;
return pROMDiv->uidivmod(numerator, denominator);
}
#endif /* !defined( __GNUC__ ) */

60
hw/mcu/nxp/lpc_chip_11u6x/src/rtc_11u6x.c Normal file
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/*
* @brief LPC11u6x RTC chip driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initialize the RTC peripheral */
void Chip_RTC_Init(LPC_RTC_T *pRTC)
{
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_RTC);
}
/* De-initialize the RTC peripheral */
void Chip_RTC_DeInit(LPC_RTC_T *pRTC)
{
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_RTC);
}

98
hw/mcu/nxp/lpc_chip_11u6x/src/sct_11u6x.c Normal file
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/*
* @brief LPC11u6x State Configurable Timer driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/* SCT clock shared count flag */
static uint8_t sctUsedCount;
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initialize SCT */
void Chip_SCT_Init(LPC_SCT_T *pSCT)
{
if (sctUsedCount == 0) {
/* Does not handle unbalanced Init() and DeInit() calls */
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_SCT0_1);
}
sctUsedCount++;
if (pSCT == LPC_SCT0) {
Chip_SYSCTL_PeriphReset(RESET_SCT0);
}
else {
Chip_SYSCTL_PeriphReset(RESET_SCT1);
}
}
/* Shutdown SCT */
void Chip_SCT_DeInit(LPC_SCT_T *pSCT)
{
sctUsedCount--;
if (sctUsedCount == 0) {
/* Does not handle unbalanced Init() and DeInit() calls */
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_SCT0_1);
}
}
/* Set/Clear SCT control register */
void Chip_SCT_SetClrControl(LPC_SCT_T *pSCT, uint32_t value, FunctionalState ena)
{
if (ena == ENABLE) {
Chip_SCT_SetControl(pSCT, value);
}
else {
Chip_SCT_ClearControl(pSCT, value);
}
}
/* Set Conflict resolution */
void Chip_SCT_SetConflictResolution(LPC_SCT_T *pSCT, uint8_t outnum, uint8_t value)
{
uint32_t tem;
tem = pSCT->RES & (~(0x03 << (2 * outnum)));
pSCT->RES = tem | (value << (2 * outnum));
}

493
hw/mcu/nxp/lpc_chip_11u6x/src/ssp_11u6x.c Normal file
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/*
* @brief LPC11u6x SSP Registers and control functions
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
STATIC void SSP_Write2BFifo(LPC_SSP_T *pSSP, Chip_SSP_DATA_SETUP_T *xf_setup)
{
if (xf_setup->tx_data) {
Chip_SSP_SendFrame(pSSP, (*(uint16_t *) ((uint32_t) xf_setup->tx_data +
xf_setup->tx_cnt)));
xf_setup->tx_cnt += 2;
}
else {
Chip_SSP_SendFrame(pSSP, 0xFFFF);
}
}
/** SSP macro: write 1 bytes to FIFO buffer */
STATIC void SSP_Write1BFifo(LPC_SSP_T *pSSP, Chip_SSP_DATA_SETUP_T *xf_setup)
{
if (xf_setup->tx_data) {
Chip_SSP_SendFrame(pSSP, (*(uint8_t *) ((uint32_t) xf_setup->tx_data + xf_setup->tx_cnt)));
}
else {
Chip_SSP_SendFrame(pSSP, 0xFF);
}
xf_setup->tx_cnt++;
}
/** SSP macro: read 1 bytes from FIFO buffer */
STATIC void SSP_Read2BFifo(LPC_SSP_T *pSSP, Chip_SSP_DATA_SETUP_T *xf_setup)
{
uint16_t rDat;
while ((Chip_SSP_GetStatus(pSSP, SSP_STAT_RNE) == SET) &&
(xf_setup->rx_cnt < xf_setup->length)) {
rDat = Chip_SSP_ReceiveFrame(pSSP);
if (xf_setup->rx_data) {
*(uint16_t *) ((uint32_t) xf_setup->rx_data + xf_setup->rx_cnt) = rDat;
xf_setup->rx_cnt += 2;
}
}
}
/** SSP macro: read 2 bytes from FIFO buffer */
STATIC void SSP_Read1BFifo(LPC_SSP_T *pSSP, Chip_SSP_DATA_SETUP_T *xf_setup)
{
uint16_t rDat;
while ((Chip_SSP_GetStatus(pSSP, SSP_STAT_RNE) == SET) &&
(xf_setup->rx_cnt < xf_setup->length)) {
rDat = Chip_SSP_ReceiveFrame(pSSP);
if (xf_setup->rx_data) {
*(uint8_t *) ((uint32_t) xf_setup->rx_data + xf_setup->rx_cnt) = rDat;
}
xf_setup->rx_cnt++;
}
}
/* Returns clock for the peripheral block */
STATIC CHIP_SYSCTL_CLOCK_T Chip_SSP_GetClockIndex(LPC_SSP_T *pSSP)
{
CHIP_SYSCTL_CLOCK_T clkSSP;
if (pSSP == LPC_SSP0) {
clkSSP = SYSCTL_CLOCK_SSP0;
}
else {
clkSSP = SYSCTL_CLOCK_SSP1;
}
return clkSSP;
}
/* Returns reset ID for the peripheral block */
STATIC CHIP_SYSCTL_PERIPH_RESET_T Chip_SSP_GetResetIndex(LPC_SSP_T *pSSP)
{
CHIP_SYSCTL_PERIPH_RESET_T resetSSP;
if (pSSP == LPC_SSP0) {
resetSSP = RESET_SSP0;
}
else {
resetSSP = RESET_SSP1;
}
return resetSSP;
}
/* Returns reset ID for the peripheral block */
STATIC void Chip_SSP_SetSSPClkDivider(LPC_SSP_T *pSSP, uint32_t div)
{
if (pSSP == LPC_SSP0) {
Chip_Clock_SetSSP0ClockDiv(div);
}
else {
Chip_Clock_SetSSP1ClockDiv(div);
}
}
/* Returns SSP peripheral clock for the peripheral block */
STATIC uint32_t Chip_SSP_GetPCLKkRate(LPC_SSP_T *pSSP)
{
uint32_t sspCLK = Chip_Clock_GetMainClockRate();
if (pSSP == LPC_SSP0) {
sspCLK /= Chip_Clock_GetSSP0ClockDiv();
}
else {
sspCLK /= Chip_Clock_GetSSP1ClockDiv();
}
return sspCLK;
}
/*****************************************************************************
* Public functions
****************************************************************************/
/*Set up output clocks per bit for SSP bus*/
void Chip_SSP_SetClockRate(LPC_SSP_T *pSSP, uint32_t clk_rate, uint32_t prescale)
{
uint32_t temp;
temp = pSSP->CR0 & (~(SSP_CR0_SCR(0xFF)));
pSSP->CR0 = temp | (SSP_CR0_SCR(clk_rate));
pSSP->CPSR = prescale;
}
/* SSP Polling Read/Write in blocking mode */
uint32_t Chip_SSP_RWFrames_Blocking(LPC_SSP_T *pSSP, Chip_SSP_DATA_SETUP_T *xf_setup)
{
/* Clear all remaining frames in RX FIFO */
while (Chip_SSP_GetStatus(pSSP, SSP_STAT_RNE)) {
Chip_SSP_ReceiveFrame(pSSP);
}
/* Clear status */
Chip_SSP_ClearIntPending(pSSP, SSP_INT_CLEAR_BITMASK);
if (Chip_SSP_GetDataSize(pSSP) > SSP_BITS_8) {
while (xf_setup->rx_cnt < xf_setup->length || xf_setup->tx_cnt < xf_setup->length) {
/* write data to buffer */
if (( Chip_SSP_GetStatus(pSSP, SSP_STAT_TNF) == SET) && ( xf_setup->tx_cnt < xf_setup->length) ) {
SSP_Write2BFifo(pSSP, xf_setup);
}
/* Check overrun error */
if (Chip_SSP_GetRawIntStatus(pSSP, SSP_RORRIS) == SET) {
return ERROR;
}
/* Check for any data available in RX FIFO */
SSP_Read2BFifo(pSSP, xf_setup);
}
}
else {
while (xf_setup->rx_cnt < xf_setup->length || xf_setup->tx_cnt < xf_setup->length) {
/* write data to buffer */
if (( Chip_SSP_GetStatus(pSSP, SSP_STAT_TNF) == SET) && ( xf_setup->tx_cnt < xf_setup->length) ) {
SSP_Write1BFifo(pSSP, xf_setup);
}
/* Check overrun error */
if (Chip_SSP_GetRawIntStatus(pSSP, SSP_RORRIS) == SET) {
return ERROR;
}
/* Check for any data available in RX FIFO */
SSP_Read1BFifo(pSSP, xf_setup);
}
}
if (xf_setup->tx_data) {
return xf_setup->tx_cnt;
}
else if (xf_setup->rx_data) {
return xf_setup->rx_cnt;
}
return 0;
}
/* SSP Polling Write in blocking mode */
uint32_t Chip_SSP_WriteFrames_Blocking(LPC_SSP_T *pSSP, uint8_t *buffer, uint32_t buffer_len)
{
uint32_t tx_cnt = 0, rx_cnt = 0;
/* Clear all remaining frames in RX FIFO */
while (Chip_SSP_GetStatus(pSSP, SSP_STAT_RNE)) {
Chip_SSP_ReceiveFrame(pSSP);
}
/* Clear status */
Chip_SSP_ClearIntPending(pSSP, SSP_INT_CLEAR_BITMASK);
if (Chip_SSP_GetDataSize(pSSP) > SSP_BITS_8) {
uint16_t *wdata16;
wdata16 = (uint16_t *) buffer;
while (tx_cnt < buffer_len || rx_cnt < buffer_len) {
/* write data to buffer */
if ((Chip_SSP_GetStatus(pSSP, SSP_STAT_TNF) == SET) && (tx_cnt < buffer_len)) {
Chip_SSP_SendFrame(pSSP, *wdata16);
wdata16++;
tx_cnt += 2;
}
/* Check overrun error */
if (Chip_SSP_GetRawIntStatus(pSSP, SSP_RORRIS) == SET) {
return ERROR;
}
/* Check for any data available in RX FIFO */
while (Chip_SSP_GetStatus(pSSP, SSP_STAT_RNE) == SET) {
Chip_SSP_ReceiveFrame(pSSP); /* read dummy data */
rx_cnt += 2;
}
}
}
else {
uint8_t *wdata8;
wdata8 = buffer;
while (tx_cnt < buffer_len || rx_cnt < buffer_len) {
/* write data to buffer */
if ((Chip_SSP_GetStatus(pSSP, SSP_STAT_TNF) == SET) && (tx_cnt < buffer_len)) {
Chip_SSP_SendFrame(pSSP, *wdata8);
wdata8++;
tx_cnt++;
}
/* Check overrun error */
if (Chip_SSP_GetRawIntStatus(pSSP, SSP_RORRIS) == SET) {
return ERROR;
}
/* Check for any data available in RX FIFO */
while (Chip_SSP_GetStatus(pSSP, SSP_STAT_RNE) == SET && rx_cnt < buffer_len) {
Chip_SSP_ReceiveFrame(pSSP); /* read dummy data */
rx_cnt++;
}
}
}
return tx_cnt;
}
/* SSP Polling Read in blocking mode */
uint32_t Chip_SSP_ReadFrames_Blocking(LPC_SSP_T *pSSP, uint8_t *buffer, uint32_t buffer_len)
{
uint32_t rx_cnt = 0, tx_cnt = 0;
/* Clear all remaining frames in RX FIFO */
while (Chip_SSP_GetStatus(pSSP, SSP_STAT_RNE)) {
Chip_SSP_ReceiveFrame(pSSP);
}
/* Clear status */
Chip_SSP_ClearIntPending(pSSP, SSP_INT_CLEAR_BITMASK);
if (Chip_SSP_GetDataSize(pSSP) > SSP_BITS_8) {
uint16_t *rdata16;
rdata16 = (uint16_t *) buffer;
while (tx_cnt < buffer_len || rx_cnt < buffer_len) {
/* write data to buffer */
if ((Chip_SSP_GetStatus(pSSP, SSP_STAT_TNF) == SET) && (tx_cnt < buffer_len)) {
Chip_SSP_SendFrame(pSSP, 0xFFFF); /* just send dummy data */
tx_cnt += 2;
}
/* Check overrun error */
if (Chip_SSP_GetRawIntStatus(pSSP, SSP_RORRIS) == SET) {
return ERROR;
}
/* Check for any data available in RX FIFO */
while (Chip_SSP_GetStatus(pSSP, SSP_STAT_RNE) == SET && rx_cnt < buffer_len) {
*rdata16 = Chip_SSP_ReceiveFrame(pSSP);
rdata16++;
rx_cnt += 2;
}
}
}
else {
uint8_t *rdata8;
rdata8 = buffer;
while (tx_cnt < buffer_len || rx_cnt < buffer_len) {
/* write data to buffer */
if ((Chip_SSP_GetStatus(pSSP, SSP_STAT_TNF) == SET) && (tx_cnt < buffer_len)) {
Chip_SSP_SendFrame(pSSP, 0xFF); /* just send dummy data */
tx_cnt++;
}
/* Check overrun error */
if (Chip_SSP_GetRawIntStatus(pSSP, SSP_RORRIS) == SET) {
return ERROR;
}
/* Check for any data available in RX FIFO */
while (Chip_SSP_GetStatus(pSSP, SSP_STAT_RNE) == SET && rx_cnt < buffer_len) {
*rdata8 = Chip_SSP_ReceiveFrame(pSSP);
rdata8++;
rx_cnt++;
}
}
}
return rx_cnt;
}
/* Clean all data in RX FIFO of SSP */
void Chip_SSP_Int_FlushData(LPC_SSP_T *pSSP)
{
if (Chip_SSP_GetStatus(pSSP, SSP_STAT_BSY)) {
while (Chip_SSP_GetStatus(pSSP, SSP_STAT_BSY)) {}
}
/* Clear all remaining frames in RX FIFO */
while (Chip_SSP_GetStatus(pSSP, SSP_STAT_RNE)) {
Chip_SSP_ReceiveFrame(pSSP);
}
/* Clear status */
Chip_SSP_ClearIntPending(pSSP, SSP_INT_CLEAR_BITMASK);
}
/* SSP Interrupt Read/Write with 8-bit frame width */
Status Chip_SSP_Int_RWFrames8Bits(LPC_SSP_T *pSSP, Chip_SSP_DATA_SETUP_T *xf_setup)
{
/* Check overrun error in RIS register */
if (Chip_SSP_GetRawIntStatus(pSSP, SSP_RORRIS) == SET) {
return ERROR;
}
if ((xf_setup->tx_cnt != xf_setup->length) || (xf_setup->rx_cnt != xf_setup->length)) {
/* check if RX FIFO contains data */
SSP_Read1BFifo(pSSP, xf_setup);
while ((Chip_SSP_GetStatus(pSSP, SSP_STAT_TNF)) && (xf_setup->tx_cnt != xf_setup->length)) {
/* Write data to buffer */
SSP_Write1BFifo(pSSP, xf_setup);
/* Check overrun error in RIS register */
if (Chip_SSP_GetRawIntStatus(pSSP, SSP_RORRIS) == SET) {
return ERROR;
}
/* Check for any data available in RX FIFO */
SSP_Read1BFifo(pSSP, xf_setup);
}
return SUCCESS;
}
return ERROR;
}
/* SSP Interrupt Read/Write with 16-bit frame width */
Status Chip_SSP_Int_RWFrames16Bits(LPC_SSP_T *pSSP, Chip_SSP_DATA_SETUP_T *xf_setup)
{
/* Check overrun error in RIS register */
if (Chip_SSP_GetRawIntStatus(pSSP, SSP_RORRIS) == SET) {
return ERROR;
}
if ((xf_setup->tx_cnt != xf_setup->length) || (xf_setup->rx_cnt != xf_setup->length)) {
/* check if RX FIFO contains data */
SSP_Read2BFifo(pSSP, xf_setup);
while ((Chip_SSP_GetStatus(pSSP, SSP_STAT_TNF)) && (xf_setup->tx_cnt != xf_setup->length)) {
/* Write data to buffer */
SSP_Write2BFifo(pSSP, xf_setup);
/* Check overrun error in RIS register */
if (Chip_SSP_GetRawIntStatus(pSSP, SSP_RORRIS) == SET) {
return ERROR;
}
/* Check for any data available in RX FIFO */
SSP_Read2BFifo(pSSP, xf_setup);
}
return SUCCESS;
}
return ERROR;
}
/* Set the SSP operating modes, master or slave */
void Chip_SSP_SetMaster(LPC_SSP_T *pSSP, bool master)
{
if (master) {
Chip_SSP_Set_Mode(pSSP, SSP_MODE_MASTER);
}
else {
Chip_SSP_Set_Mode(pSSP, SSP_MODE_SLAVE);
}
}
/* Set the clock frequency for SSP interface */
void Chip_SSP_SetBitRate(LPC_SSP_T *pSSP, uint32_t bitRate)
{
uint32_t ssp_clk, cr0_div, cmp_clk, prescale;
ssp_clk = Chip_SSP_GetPCLKkRate(pSSP);
cr0_div = 0;
cmp_clk = 0xFFFFFFFF;
prescale = 2;
while (cmp_clk > bitRate) {
cmp_clk = ssp_clk / ((cr0_div + 1) * prescale);
if (cmp_clk > bitRate) {
cr0_div++;
if (cr0_div > 0xFF) {
cr0_div = 0;
prescale += 2;
}
}
}
Chip_SSP_SetClockRate(pSSP, cr0_div, prescale);
}
/* Initialize the SSP */
void Chip_SSP_Init(LPC_SSP_T *pSSP)
{
Chip_Clock_EnablePeriphClock(Chip_SSP_GetClockIndex(pSSP));
Chip_SSP_SetSSPClkDivider(pSSP, 1);
Chip_SYSCTL_PeriphReset(Chip_SSP_GetResetIndex(pSSP));
Chip_SSP_Set_Mode(pSSP, SSP_MODE_MASTER);
Chip_SSP_SetFormat(pSSP, SSP_BITS_8, SSP_FRAMEFORMAT_SPI, SSP_CLOCK_CPHA0_CPOL0);
Chip_SSP_SetBitRate(pSSP, 100000);
}
/* De-initializes the SSP peripheral */
void Chip_SSP_DeInit(LPC_SSP_T *pSSP)
{
Chip_SSP_Disable(pSSP);
Chip_Clock_DisablePeriphClock(Chip_SSP_GetClockIndex(pSSP));
Chip_SSP_SetSSPClkDivider(pSSP, 0);
}

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/*
* @brief LPC11u6x specific stopwatch implementation
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
#include "stopwatch.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/* Precompute these to optimize runtime */
static uint32_t ticksPerSecond;
static uint32_t ticksPerMs;
static uint32_t ticksPerUs;
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initialize stopwatch */
void StopWatch_Init(void)
{
/* Use timer 1. Set prescaler to divide by 8 */
const uint32_t prescaleDivisor = 8;
Chip_TIMER_Init(LPC_TIMER32_1);
Chip_TIMER_PrescaleSet(LPC_TIMER32_1, prescaleDivisor - 1);
Chip_TIMER_Enable(LPC_TIMER32_1);
/* Pre-compute tick rate. */
ticksPerSecond = Chip_Clock_GetSystemClockRate() / prescaleDivisor;
ticksPerMs = ticksPerSecond / 1000;
ticksPerUs = ticksPerSecond / 1000000;
}
/* Start a stopwatch */
uint32_t StopWatch_Start(void)
{
/* Return the current timer count. */
return Chip_TIMER_ReadCount(LPC_TIMER32_1);
}
/* Returns number of ticks per second of the stopwatch timer */
uint32_t StopWatch_TicksPerSecond(void)
{
return ticksPerSecond;
}
/* Converts from stopwatch ticks to mS. */
uint32_t StopWatch_TicksToMs(uint32_t ticks)
{
return ticks / ticksPerMs;
}
/* Converts from stopwatch ticks to uS. */
uint32_t StopWatch_TicksToUs(uint32_t ticks)
{
return ticks / ticksPerUs;
}
/* Converts from mS to stopwatch ticks. */
uint32_t StopWatch_MsToTicks(uint32_t mS)
{
return mS * ticksPerMs;
}
/* Converts from uS to stopwatch ticks. */
uint32_t StopWatch_UsToTicks(uint32_t uS)
{
return uS * ticksPerUs;
}

106
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/*
* @brief LPC11U6X System Control functions
*
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/* PDSLEEPCFG register mask */
#define PDSLEEPUSEMASK 0x00000037
#define PDSLEEPMASKTMP (SYSCTL_DEEPSLP_BOD_PD | SYSCTL_DEEPSLP_WDTOSC_PD)
#define PDSLEEPMASK ((PDSLEEPUSEMASK) &~(PDSLEEPMASKTMP))
/* PDWAKECFG register mask */
#define PDWAKEUPUSEMASK 0x00000800
#define PDWAKEUPMASKTMP 0x000025FF
/* PDRUNCFG register mask */
#define PDRUNCFGUSEMASK 0x0000C800
#define PDRUNCFGMASKTMP 0x000025FF
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Setup a pin source for the pin interrupts (0-7) */
void Chip_SYSCTL_SetPinInterrupt(uint32_t intno, uint8_t port, uint8_t pin)
{
if (port == 0) {
/* Pins P0.1 to P0.23 only */
LPC_SYSCTL->PINTSEL[intno] = (uint32_t) pin;
} else {
/* P1.1 to P1.31 and P2.0 to P2.7 */
LPC_SYSCTL->PINTSEL[intno] = (uint32_t) ((port - 1) * 32 + pin + 24);
}
}
/* Setup deep sleep behaviour for power down */
void Chip_SYSCTL_SetDeepSleepPD(uint32_t sleepmask)
{
/* Update new value */
LPC_SYSCTL->PDSLEEPCFG = PDSLEEPMASK | (sleepmask & PDSLEEPMASKTMP);
}
/* Setup wakeup behaviour from deep sleep */
void Chip_SYSCTL_SetWakeup(uint32_t wakeupmask)
{
/* Update new value */
LPC_SYSCTL->PDWAKECFG = PDWAKEUPUSEMASK | (wakeupmask & PDWAKEUPMASKTMP);
}
/* Power down one or more blocks or peripherals */
void Chip_SYSCTL_PowerDown(uint32_t powerdownmask)
{
uint32_t pdrun;
pdrun = LPC_SYSCTL->PDRUNCFG & PDRUNCFGMASKTMP;
pdrun |= (powerdownmask & PDRUNCFGMASKTMP);
LPC_SYSCTL->PDRUNCFG = (pdrun | PDRUNCFGUSEMASK);
}
/* Power up one or more blocks or peripherals */
void Chip_SYSCTL_PowerUp(uint32_t powerupmask)
{
uint32_t pdrun;
pdrun = LPC_SYSCTL->PDRUNCFG & PDRUNCFGMASKTMP;
pdrun &= ~(powerupmask & PDRUNCFGMASKTMP);
LPC_SYSCTL->PDRUNCFG = (pdrun | PDRUNCFGUSEMASK);
}

165
hw/mcu/nxp/lpc_chip_11u6x/src/sysinit_11u6x.c Normal file
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/*
* @brief LPC11u6x Chip specific SystemInit
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/* Enable this definition to use the ROM API for PLL setup */
// #define USE_ROM_API
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Clock and PLL initialization based on the internal oscillator */
void Chip_SetupIrcClocking(void)
{
#if defined(USE_ROM_API)
uint32_t cmd[4], resp[2];
#endif
/* Turn on the IRC by clearing the power down bit */
Chip_SYSCTL_PowerUp(SYSCTL_POWERDOWN_IRC_PD);
/* Select the PLL input in the IRC */
Chip_Clock_SetSystemPLLSource(SYSCTL_PLLCLKSRC_IRC);
/* Setup FLASH access */
Chip_FMC_SetFLASHAccess(FLASHTIM_3CLK_CPU);
#if defined(USE_ROM_API)
/* Use ROM API for setting up PLL */
cmd[0] = Chip_Clock_GetIntOscRate() / 1000; /* in KHz */
cmd[1] = 48000000 / 1000; /* 48MHz system clock rate */
cmd[2] = CPU_FREQ_EQU;
cmd[3] = 48000000 / 10000; /* Timeout */
LPC_PWRD_API->set_pll(cmd, resp);
/* Dead loop on fail */
while (resp[0] != PLL_CMD_SUCCESS) {}
#else
/* Power down PLL to change the PLL divider ratio */
Chip_SYSCTL_PowerDown(SYSCTL_POWERDOWN_SYSPLL_PD);
/* Configure the PLL M and P dividers */
/* Setup PLL for main oscillator rate (FCLKIN = 12MHz) * 4 = 48MHz
MSEL = 3 (this is pre-decremented), PSEL = 1 (for P = 2)
FCLKOUT = FCLKIN * (MSEL + 1) = 12MHz * 4 = 48MHz
FCCO = FCLKOUT * 2 * P = 48MHz * 2 * 2 = 192MHz (within FCCO range) */
Chip_Clock_SetupSystemPLL(3, 1);
/* Turn on the PLL by clearing the power down bit */
Chip_SYSCTL_PowerUp(SYSCTL_POWERDOWN_SYSPLL_PD);
/* Wait for PLL to lock */
while (!Chip_Clock_IsSystemPLLLocked()) {}
/* Set system clock divider to 1 */
Chip_Clock_SetSysClockDiv(1);
/* Set main clock source to the system PLL. This will drive 24MHz
for the main clock and 24MHz for the system clock */
Chip_Clock_SetMainClockSource(SYSCTL_MAINCLKSRC_PLLOUT);
#endif
}
/* Clock and PLL initialization based on the external oscillator */
void Chip_SetupXtalClocking(void)
{
volatile int i;
#if defined(USE_ROM_API)
uint32_t cmd[4], resp[2];
#endif
/* Powerup main oscillator */
Chip_SYSCTL_PowerUp(SYSCTL_POWERDOWN_SYSOSC_PD);
/* Wait for at least 580uS for osc to stabilize */
for (i = 0; i < 2500; i++) {}
/* Set system PLL input to main oscillator */
Chip_Clock_SetSystemPLLSource(SYSCTL_PLLCLKSRC_MAINOSC);
/* Setup FLASH access to 3 clocks */
Chip_FMC_SetFLASHAccess(FLASHTIM_3CLK_CPU);
#if defined(USE_ROM_API)
/* Use ROM API for setting up PLL */
cmd[0] = Chip_Clock_GetMainOscRate() / 1000; /* in KHz */
cmd[1] = 48000000 / 1000; /* 48MHz system clock rate */
cmd[2] = CPU_FREQ_EQU;
cmd[3] = 48000000 / 10000; /* Timeout */
LPC_PWRD_API->set_pll(cmd, resp);
/* Dead loop on fail */
while (resp[0] != PLL_CMD_SUCCESS) {}
#else
/* Power down PLL to change the PLL divider ratio */
Chip_SYSCTL_PowerDown(SYSCTL_POWERDOWN_SYSPLL_PD);
/* Setup PLL for main oscillator rate (FCLKIN = 12MHz) * 4 = 48MHz
MSEL = 3 (this is pre-decremented), PSEL = 1 (for P = 2)
FCLKOUT = FCLKIN * (MSEL + 1) = 12MHz * 4 = 48MHz
FCCO = FCLKOUT * 2 * P = 48MHz * 2 * 2 = 192MHz (within FCCO range) */
Chip_Clock_SetupSystemPLL(3, 1);
/* Powerup system PLL */
Chip_SYSCTL_PowerUp(SYSCTL_POWERDOWN_SYSPLL_PD);
/* Wait for PLL to lock */
while (!Chip_Clock_IsSystemPLLLocked()) {}
/* Set system clock divider to 1 */
Chip_Clock_SetSysClockDiv(1);
/* Set main clock source to the system PLL. This will drive 48MHz
for the main clock and 48MHz for the system clock */
Chip_Clock_SetMainClockSource(SYSCTL_MAINCLKSRC_PLLOUT);
#endif
}
/* Set up and initialize hardware prior to call to main */
void Chip_SystemInit(void)
{
/* Initial internal clocking */
Chip_SetupIrcClocking();
}

115
hw/mcu/nxp/lpc_chip_11u6x/src/timer_11u6x.c Normal file
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/*
* @brief LPC11u6x 16/32-bit Timer/PWM control functions
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/* Returns clock index for a specific timer referenced by IP block address */
STATIC CHIP_SYSCTL_CLOCK_T Chip_TIMER_GetClock(LPC_TIMER_T *pTMR)
{
CHIP_SYSCTL_CLOCK_T tmrClk;
if (pTMR == LPC_TIMER32_1) {
tmrClk = SYSCTL_CLOCK_CT32B1;
}
else if (pTMR == LPC_TIMER16_0) {
tmrClk = SYSCTL_CLOCK_CT16B0;
}
else if (pTMR == LPC_TIMER16_1) {
tmrClk = SYSCTL_CLOCK_CT16B1;
}
else {
tmrClk = SYSCTL_CLOCK_CT32B0;
}
return tmrClk;
}
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initialize a timer */
void Chip_TIMER_Init(LPC_TIMER_T *pTMR)
{
Chip_Clock_EnablePeriphClock(Chip_TIMER_GetClock(pTMR));
}
/* Shutdown a timer */
void Chip_TIMER_DeInit(LPC_TIMER_T *pTMR)
{
Chip_Clock_DisablePeriphClock(Chip_TIMER_GetClock(pTMR));
}
/* Resets the timer terminal and prescale counts to 0 */
void Chip_TIMER_Reset(LPC_TIMER_T *pTMR)
{
uint32_t reg;
/* Disable timer, set terminal count to non-0 */
reg = pTMR->TCR;
pTMR->TCR = 0;
pTMR->TC = 1;
/* Reset timer counter */
pTMR->TCR = TIMER_RESET;
/* Wait for terminal count to clear */
while (pTMR->TC != 0) {}
/* Restore timer state */
pTMR->TCR = reg;
}
/* Sets external match control (MATn.matchnum) pin control */
void Chip_TIMER_ExtMatchControlSet(LPC_TIMER_T *pTMR, int8_t initial_state,
TIMER_PIN_MATCH_STATE_T matchState, int8_t matchnum)
{
uint32_t mask, reg;
/* Clear bits corresponding to selected match register */
mask = (1 << matchnum) | (0x03 << (4 + (matchnum * 2)));
reg = pTMR->EMR &= ~mask;
/* Set new configuration for selected match register */
pTMR->EMR = reg | (((uint32_t) initial_state) << matchnum) |
(((uint32_t) matchState) << (4 + (matchnum * 2)));
}

283
hw/mcu/nxp/lpc_chip_11u6x/src/uart_0_11u6x.c Normal file
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/*
* @brief LPC11u6x USART0 chip driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initializes the pUART peripheral */
void Chip_UART0_Init(LPC_USART0_T *pUART)
{
/* A USART 0 divider of 1 is used with this driver */
Chip_Clock_SetUSART0ClockDiv(1);
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_UART0);
/* Enable FIFOs by default, reset them */
Chip_UART0_SetupFIFOS(pUART, (UART0_FCR_FIFO_EN | UART0_FCR_RX_RS | UART0_FCR_TX_RS));
/* Disable fractional divider */
pUART->FDR = 0x10;
}
/* De-initializes the pUART peripheral */
void Chip_UART0_DeInit(LPC_USART0_T *pUART)
{
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_UART0);
}
/* Transmit a byte array through the UART peripheral (non-blocking) */
int Chip_UART0_Send(LPC_USART0_T *pUART, const void *data, int numBytes)
{
int sent = 0;
uint8_t *p8 = (uint8_t *) data;
/* Send until the transmit FIFO is full or out of bytes */
while ((sent < numBytes) &&
((Chip_UART0_ReadLineStatus(pUART) & UART0_LSR_THRE) != 0)) {
Chip_UART0_SendByte(pUART, *p8);
p8++;
sent++;
}
return sent;
}
/* Transmit a byte array through the UART peripheral (blocking) */
int Chip_UART0_SendBlocking(LPC_USART0_T *pUART, const void *data, int numBytes)
{
int pass, sent = 0;
uint8_t *p8 = (uint8_t *) data;
while (numBytes > 0) {
pass = Chip_UART0_Send(pUART, p8, numBytes);
numBytes -= pass;
sent += pass;
p8 += pass;
}
return sent;
}
/* Read data through the UART peripheral (non-blocking) */
int Chip_UART0_Read(LPC_USART0_T *pUART, void *data, int numBytes)
{
int readBytes = 0;
uint8_t *p8 = (uint8_t *) data;
/* Send until the transmit FIFO is full or out of bytes */
while ((readBytes < numBytes) &&
((Chip_UART0_ReadLineStatus(pUART) & UART0_LSR_RDR) != 0)) {
*p8 = Chip_UART0_ReadByte(pUART);
p8++;
readBytes++;
}
return readBytes;
}
/* Read data through the UART peripheral (blocking) */
int Chip_UART0_ReadBlocking(LPC_USART0_T *pUART, void *data, int numBytes)
{
int pass, readBytes = 0;
uint8_t *p8 = (uint8_t *) data;
while (numBytes > 0) {
pass = Chip_UART0_Read(pUART, p8, numBytes);
numBytes -= pass;
readBytes += pass;
p8 += pass;
}
return readBytes;
}
/* Determines and sets best dividers to get a target bit rate */
uint32_t Chip_UART0_SetBaud(LPC_USART0_T *pUART, uint32_t baudrate)
{
uint32_t div, divh, divl, clkin;
/* USART clock input divider of 1 */
Chip_Clock_SetUSART0ClockDiv(1);
/* Determine UART clock in rate without FDR */
clkin = Chip_Clock_GetMainClockRate();
div = clkin / (baudrate * 16);
/* High and low halves of the divider */
divh = div / 256;
divl = div - (divh * 256);
Chip_UART0_EnableDivisorAccess(pUART);
Chip_UART0_SetDivisorLatches(pUART, divl, divh);
Chip_UART0_DisableDivisorAccess(pUART);
/* Fractional FDR already setup for 1 in UART init */
return clkin / (div * 16);
}
/* UART receive-only interrupt handler for ring buffers */
void Chip_UART0_RXIntHandlerRB(LPC_USART0_T *pUART, RINGBUFF_T *pRB)
{
/* New data will be ignored if data not popped in time */
while (Chip_UART0_ReadLineStatus(pUART) & UART0_LSR_RDR) {
uint8_t ch = Chip_UART0_ReadByte(pUART);
RingBuffer_Insert(pRB, &ch);
}
}
/* UART transmit-only interrupt handler for ring buffers */
void Chip_UART0_TXIntHandlerRB(LPC_USART0_T *pUART, RINGBUFF_T *pRB)
{
uint8_t ch;
/* Fill FIFO until full or until TX ring buffer is empty */
while ((Chip_UART0_ReadLineStatus(pUART) & UART0_LSR_THRE) != 0 &&
RingBuffer_Pop(pRB, &ch)) {
Chip_UART0_SendByte(pUART, ch);
}
}
/* Populate a transmit ring buffer and start UART transmit */
uint32_t Chip_UART0_SendRB(LPC_USART0_T *pUART, RINGBUFF_T *pRB, const void *data, int bytes)
{
uint32_t ret;
uint8_t *p8 = (uint8_t *) data;
/* Don't let UART transmit ring buffer change in the UART IRQ handler */
Chip_UART0_IntDisable(pUART, UART0_IER_THREINT);
/* Move as much data as possible into transmit ring buffer */
ret = RingBuffer_InsertMult(pRB, p8, bytes);
Chip_UART0_TXIntHandlerRB(pUART, pRB);
/* Add additional data to transmit ring buffer if possible */
ret += RingBuffer_InsertMult(pRB, (p8 + ret), (bytes - ret));
/* Enable UART transmit interrupt */
Chip_UART0_IntEnable(pUART, UART0_IER_THREINT);
return ret;
}
/* Copy data from a receive ring buffer */
int Chip_UART0_ReadRB(LPC_USART0_T *pUART, RINGBUFF_T *pRB, void *data, int bytes)
{
(void) pUART;
return RingBuffer_PopMult(pRB, (uint8_t *) data, bytes);
}
/* UART receive/transmit interrupt handler for ring buffers */
void Chip_UART0_IRQRBHandler(LPC_USART0_T *pUART, RINGBUFF_T *pRXRB, RINGBUFF_T *pTXRB)
{
/* Handle transmit interrupt if enabled */
if (pUART->IER & UART0_IER_THREINT) {
Chip_UART0_TXIntHandlerRB(pUART, pTXRB);
/* Disable transmit interrupt if the ring buffer is empty */
if (RingBuffer_IsEmpty(pTXRB)) {
Chip_UART0_IntDisable(pUART, UART0_IER_THREINT);
}
}
/* Handle receive interrupt */
Chip_UART0_RXIntHandlerRB(pUART, pRXRB);
}
/* Determines and sets best dividers to get a target baud rate */
uint32_t Chip_UART0_SetBaudFDR(LPC_USART0_T *pUART, uint32_t baudrate)
{
uint32_t uClk;
uint32_t dval, mval;
uint32_t dl;
uint32_t rate16 = 16 * baudrate;
uint32_t actualRate = 0;
/* Get Clock rate */
uClk = Chip_Clock_GetMainClockRate();
/* The fractional is calculated as (PCLK % (16 * Baudrate)) / (16 * Baudrate)
* Let's make it to be the ratio DivVal / MulVal
*/
dval = uClk % rate16;
/* The PCLK / (16 * Baudrate) is fractional
* => dval = pclk % rate16
* mval = rate16;
* now mormalize the ratio
* dval / mval = 1 / new_mval
* new_mval = mval / dval
* new_dval = 1
*/
if (dval > 0) {
mval = rate16 / dval;
dval = 1;
/* In case mval still bigger then 4 bits
* no adjustment require
*/
if (mval > 12) {
dval = 0;
}
}
dval &= 0xf;
mval &= 0xf;
dl = uClk / (rate16 + rate16 * dval / mval);
/* Update UART registers */
Chip_UART0_EnableDivisorAccess(pUART);
Chip_UART0_SetDivisorLatches(pUART, UART0_LOAD_DLL(dl), UART0_LOAD_DLM(dl));
Chip_UART0_DisableDivisorAccess(pUART);
/* Set best fractional divider */
pUART->FDR = (UART0_FDR_MULVAL(mval) | UART0_FDR_DIVADDVAL(dval));
/* Return actual baud rate */
actualRate = uClk / (16 * dl + 16 * dl * dval / mval);
return actualRate;
}

280
hw/mcu/nxp/lpc_chip_11u6x/src/uart_n_11u6x.c Normal file
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/*
* @brief LPC11u6xx USART0 driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licenser disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/* Counts instances of UART3 and 4 init calls for shared clock handling */
static uint8_t uart_3_4_cnt;
/*****************************************************************************
* Private functions
****************************************************************************/
/* Return UART clock ID from the UART register address */
static CHIP_SYSCTL_CLOCK_T getUARTClockID(LPC_USARTN_T *pUART)
{
if (pUART == LPC_USART1) {
return SYSCTL_CLOCK_USART1;
}
else if (pUART == LPC_USART2) {
return SYSCTL_CLOCK_USART2;
}
return SYSCTL_CLOCK_USART3_4;
}
/* UART clock enable */
static void Chip_UARTN_EnableClock(LPC_USARTN_T *pUART)
{
CHIP_SYSCTL_CLOCK_T clk = getUARTClockID(pUART);
/* Special handling for shared UART 3/4 clock */
if (clk == SYSCTL_CLOCK_USART3_4) {
/* Does not handle unbalanced Init() and DeInit() calls */
uart_3_4_cnt++;
}
Chip_Clock_EnablePeriphClock(clk);
}
/* UART clock disable */
static void Chip_UARTN_DisableClock(LPC_USARTN_T *pUART)
{
CHIP_SYSCTL_CLOCK_T clk = getUARTClockID(pUART);
/* Special handling for shared UART 3/4 clock */
if (clk != SYSCTL_CLOCK_USART3_4) {
Chip_Clock_DisablePeriphClock(clk);
}
else {
/* Does not handle unbalanced Init() and DeInit() calls */
uart_3_4_cnt--;
if (uart_3_4_cnt == 0) {
Chip_Clock_DisablePeriphClock(clk);
}
}
}
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initialize the UART peripheral */
void Chip_UARTN_Init(LPC_USARTN_T *pUART)
{
CHIP_SYSCTL_PERIPH_RESET_T resetID;
/* Enable USART clock */
Chip_UARTN_EnableClock(pUART);
/* Select UART reset */
if (pUART == LPC_USART1) {
resetID = RESET_USART1;
}
else if (pUART == LPC_USART2) {
resetID = RESET_USART2;
}
else if (pUART == LPC_USART3) {
resetID = RESET_USART3;
}
else {
resetID = RESET_USART4;
}
Chip_SYSCTL_PeriphReset(resetID);
}
/* Initialize the UART peripheral */
void Chip_UARTN_DeInit(LPC_USARTN_T *pUART)
{
/* Disable USART clock */
Chip_UARTN_DisableClock(pUART);
}
/* Transmit a byte array through the UART peripheral (non-blocking) */
int Chip_UARTN_Send(LPC_USARTN_T *pUART, const void *data, int numBytes)
{
int sent = 0;
uint8_t *p8 = (uint8_t *) data;
/* Send until the transmit FIFO is full or out of bytes */
while ((sent < numBytes) &&
((Chip_UARTN_GetStatus(pUART) & UARTN_STAT_TXRDY) != 0)) {
Chip_UARTN_SendByte(pUART, *p8);
p8++;
sent++;
}
return sent;
}
/* Transmit a byte array through the UART peripheral (blocking) */
int Chip_UARTN_SendBlocking(LPC_USARTN_T *pUART, const void *data, int numBytes)
{
int pass, sent = 0;
uint8_t *p8 = (uint8_t *) data;
while (numBytes > 0) {
pass = Chip_UARTN_Send(pUART, p8, numBytes);
numBytes -= pass;
sent += pass;
p8 += pass;
}
return sent;
}
/* Read data through the UART peripheral (non-blocking) */
int Chip_UARTN_Read(LPC_USARTN_T *pUART, void *data, int numBytes)
{
int readBytes = 0;
uint8_t *p8 = (uint8_t *) data;
/* Send until the transmit FIFO is full or out of bytes */
while ((readBytes < numBytes) &&
((Chip_UARTN_GetStatus(pUART) & UARTN_STAT_RXRDY) != 0)) {
*p8 = Chip_UARTN_ReadByte(pUART);
p8++;
readBytes++;
}
return readBytes;
}
/* Read data through the UART peripheral (blocking) */
int Chip_UARTN_ReadBlocking(LPC_USARTN_T *pUART, void *data, int numBytes)
{
int pass, readBytes = 0;
uint8_t *p8 = (uint8_t *) data;
while (readBytes < numBytes) {
pass = Chip_UARTN_Read(pUART, p8, numBytes);
numBytes -= pass;
readBytes += pass;
p8 += pass;
}
return readBytes;
}
/* Set baud rate for UART */
void Chip_UARTN_SetBaud(LPC_USARTN_T *pUART, uint32_t baudrate)
{
uint32_t baudRateGenerator;
baudRateGenerator = Chip_Clock_GetUSARTNBaseClockRate() / (16 * baudrate);
pUART->BRG = baudRateGenerator - 1; /* baud rate */
}
/* Set baud rate for UART using RTC32K oscillator */
void Chip_UARTN_SetBaudWithRTC32K(LPC_USARTN_T *pUART, uint32_t baudrate)
{
/* Simple integer divide. 9600 is maximum baud rate. */
pUART->BRG = (9600 / baudrate) - 1;
pUART->CFG |= UARTN_MODE_32K;
}
/* UART receive-only interrupt handler for ring buffers */
void Chip_UARTN_RXIntHandlerRB(LPC_USARTN_T *pUART, RINGBUFF_T *pRB)
{
/* New data will be ignored if data not popped in time */
while ((Chip_UARTN_GetStatus(pUART) & UARTN_STAT_RXRDY) != 0) {
uint8_t ch = Chip_UARTN_ReadByte(pUART);
RingBuffer_Insert(pRB, &ch);
}
}
/* UART transmit-only interrupt handler for ring buffers */
void Chip_UARTN_TXIntHandlerRB(LPC_USARTN_T *pUART, RINGBUFF_T *pRB)
{
uint8_t ch;
/* Fill FIFO until full or until TX ring buffer is empty */
while (((Chip_UARTN_GetStatus(pUART) & UARTN_STAT_TXRDY) != 0) &&
RingBuffer_Pop(pRB, &ch)) {
Chip_UARTN_SendByte(pUART, ch);
}
}
/* Populate a transmit ring buffer and start UART transmit */
uint32_t Chip_UARTN_SendRB(LPC_USARTN_T *pUART, RINGBUFF_T *pRB, const void *data, int count)
{
uint32_t ret;
uint8_t *p8 = (uint8_t *) data;
/* Don't let UART transmit ring buffer change in the UART IRQ handler */
Chip_UARTN_IntDisable(pUART, UARTN_INTEN_TXRDY);
/* Move as much data as possible into transmit ring buffer */
ret = RingBuffer_InsertMult(pRB, p8, count);
Chip_UARTN_TXIntHandlerRB(pUART, pRB);
/* Add additional data to transmit ring buffer if possible */
ret += RingBuffer_InsertMult(pRB, (p8 + ret), (count - ret));
/* Enable UART transmit interrupt */
Chip_UARTN_IntEnable(pUART, UARTN_INTEN_TXRDY);
return ret;
}
/* Copy data from a receive ring buffer */
int Chip_UARTN_ReadRB(LPC_USARTN_T *pUART, RINGBUFF_T *pRB, void *data, int bytes)
{
(void) pUART;
return RingBuffer_PopMult(pRB, (uint8_t *) data, bytes);
}
/* UART receive/transmit interrupt handler for ring buffers */
void Chip_UARTN_IRQRBHandler(LPC_USARTN_T *pUART, RINGBUFF_T *pRXRB, RINGBUFF_T *pTXRB)
{
/* Handle transmit interrupt if enabled */
if ((Chip_UARTN_GetStatus(pUART) & UARTN_STAT_TXRDY) != 0) {
Chip_UARTN_TXIntHandlerRB(pUART, pTXRB);
/* Disable transmit interrupt if the ring buffer is empty */
if (RingBuffer_IsEmpty(pTXRB)) {
Chip_UARTN_IntDisable(pUART, UARTN_INTEN_TXRDY);
}
}
/* Handle receive interrupt */
Chip_UARTN_RXIntHandlerRB(pUART, pRXRB);
}

78
hw/mcu/nxp/lpc_chip_11u6x/src/wwdt_11u6x.c Normal file
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/*
* @brief LPC11u6x WWDT chip driver
*
* @note
* Copyright(C) NXP Semiconductors, 2013
* All rights reserved.
*
* @par
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* LPC products. This software is supplied "AS IS" without any warranties of
* any kind, and NXP Semiconductors and its licensor disclaim any and
* all warranties, express or implied, including all implied warranties of
* merchantability, fitness for a particular purpose and non-infringement of
* intellectual property rights. NXP Semiconductors assumes no responsibility
* or liability for the use of the software, conveys no license or rights under any
* patent, copyright, mask work right, or any other intellectual property rights in
* or to any products. NXP Semiconductors reserves the right to make changes
* in the software without notification. NXP Semiconductors also makes no
* representation or warranty that such application will be suitable for the
* specified use without further testing or modification.
*
* @par
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors' and its
* licensor's relevant copyrights in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
*/
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initialize the Watchdog timer */
void Chip_WWDT_Init(LPC_WWDT_T *pWWDT)
{
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_WDT);
/* Disable watchdog */
pWWDT->MOD = 0;
pWWDT->TC = 0xFF;
pWWDT->WARNINT = 0x3FF;
pWWDT->WINDOW = 0xFFFFFF;
}
/* Shutdown the Watchdog timer */
void Chip_WWDT_DeInit(LPC_WWDT_T *pWWDT)
{
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_WDT);
}
/* Clear WWDT interrupt status flags */
void Chip_WWDT_ClearStatusFlag(LPC_WWDT_T *pWWDT, uint32_t status)
{
if (status & WWDT_WDMOD_WDTOF) {
pWWDT->MOD &= (~WWDT_WDMOD_WDTOF) & WWDT_WDMOD_BITMASK;
}
if (status & WWDT_WDMOD_WDINT) {
pWWDT->MOD |= WWDT_WDMOD_WDINT;
}
}