204 lines
7.3 KiB
C
204 lines
7.3 KiB
C
/*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2018, hathach (tinyusb.org)
|
|
* Copyright (c) 2020, Koji Kitayama
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
* This file is part of the TinyUSB stack.
|
|
*/
|
|
|
|
#include "../board.h"
|
|
#include "board.h"
|
|
#include "fsl_smc.h"
|
|
#include "fsl_gpio.h"
|
|
#include "fsl_port.h"
|
|
#include "fsl_clock.h"
|
|
#include "fsl_lpuart.h"
|
|
|
|
/*******************************************************************************
|
|
* Definitions
|
|
******************************************************************************/
|
|
#define SIM_OSC32KSEL_LPO_CLK 3U /*!< OSC32KSEL select: LPO clock */
|
|
#define SOPT5_LPUART1RXSRC_LPUART_RX 0x00u /*!<@brief LPUART1 Receive Data Source Select: LPUART_RX pin */
|
|
#define SOPT5_LPUART1TXSRC_LPUART_TX 0x00u /*!<@brief LPUART1 Transmit Data Source Select: LPUART_TX pin */
|
|
#define BOARD_BOOTCLOCKRUN_CORE_CLOCK 48000000U /*!< Core clock frequency: 48000000Hz */
|
|
|
|
/*******************************************************************************
|
|
* Variables
|
|
******************************************************************************/
|
|
/* System clock frequency. */
|
|
extern uint32_t SystemCoreClock;
|
|
|
|
/*******************************************************************************
|
|
* Variables for BOARD_BootClockRUN configuration
|
|
******************************************************************************/
|
|
const mcglite_config_t mcgliteConfig_BOARD_BootClockRUN = {
|
|
.outSrc = kMCGLITE_ClkSrcHirc, /* MCGOUTCLK source is HIRC */
|
|
.irclkEnableMode = kMCGLITE_IrclkEnable, /* MCGIRCLK enabled, MCGIRCLK disabled in STOP mode */
|
|
.ircs = kMCGLITE_Lirc8M, /* Slow internal reference (LIRC) 8 MHz clock selected */
|
|
.fcrdiv = kMCGLITE_LircDivBy1, /* Low-frequency Internal Reference Clock Divider: divided by 1 */
|
|
.lircDiv2 = kMCGLITE_LircDivBy1, /* Second Low-frequency Internal Reference Clock Divider: divided by 1 */
|
|
.hircEnableInNotHircMode = true, /* HIRC source is enabled */
|
|
};
|
|
const sim_clock_config_t simConfig_BOARD_BootClockRUN = {
|
|
.er32kSrc = SIM_OSC32KSEL_LPO_CLK, /* OSC32KSEL select: LPO clock */
|
|
.clkdiv1 = 0x10000U, /* SIM_CLKDIV1 - OUTDIV1: /1, OUTDIV4: /2 */
|
|
};
|
|
|
|
/*******************************************************************************
|
|
* Code for BOARD_BootClockRUN configuration
|
|
******************************************************************************/
|
|
void BOARD_BootClockRUN(void)
|
|
{
|
|
/* Set the system clock dividers in SIM to safe value. */
|
|
CLOCK_SetSimSafeDivs();
|
|
/* Set MCG to HIRC mode. */
|
|
CLOCK_SetMcgliteConfig(&mcgliteConfig_BOARD_BootClockRUN);
|
|
/* Set the clock configuration in SIM module. */
|
|
CLOCK_SetSimConfig(&simConfig_BOARD_BootClockRUN);
|
|
/* Set SystemCoreClock variable. */
|
|
SystemCoreClock = BOARD_BOOTCLOCKRUN_CORE_CLOCK;
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------+
|
|
// Forward USB interrupt events to TinyUSB IRQ Handler
|
|
//--------------------------------------------------------------------+
|
|
void USB0_IRQHandler(void)
|
|
{
|
|
tud_int_handler(0);
|
|
}
|
|
|
|
void board_init(void)
|
|
{
|
|
/* Enable port clocks for GPIO pins */
|
|
CLOCK_EnableClock(kCLOCK_PortA);
|
|
CLOCK_EnableClock(kCLOCK_PortB);
|
|
CLOCK_EnableClock(kCLOCK_PortC);
|
|
CLOCK_EnableClock(kCLOCK_PortD);
|
|
CLOCK_EnableClock(kCLOCK_PortE);
|
|
|
|
|
|
gpio_pin_config_t led_config = { kGPIO_DigitalOutput, 1 };
|
|
GPIO_PinInit(GPIOA, 1U, &led_config);
|
|
PORT_SetPinMux(PORTA, 1U, kPORT_MuxAsGpio);
|
|
led_config.outputLogic = 0;
|
|
GPIO_PinInit(GPIOA, 2U, &led_config);
|
|
PORT_SetPinMux(PORTA, 2U, kPORT_MuxAsGpio);
|
|
|
|
#ifdef BUTTON_PIN
|
|
gpio_pin_config_t button_config = { kGPIO_DigitalInput, 0 };
|
|
GPIO_PinInit(BUTTON_GPIO, BUTTON_PIN, &button_config);
|
|
const port_pin_config_t BUTTON_CFG = {
|
|
kPORT_PullUp,
|
|
kPORT_FastSlewRate,
|
|
kPORT_PassiveFilterDisable,
|
|
kPORT_LowDriveStrength,
|
|
kPORT_MuxAsGpio
|
|
};
|
|
PORT_SetPinConfig(BUTTON_PORT, BUTTON_PIN, &BUTTON_CFG);
|
|
#endif
|
|
|
|
/* PORTC3 is configured as LPUART0_RX */
|
|
PORT_SetPinMux(PORTC, 3U, kPORT_MuxAlt3);
|
|
/* PORTA2 (pin 24) is configured as LPUART0_TX */
|
|
PORT_SetPinMux(PORTE, 0U, kPORT_MuxAlt3);
|
|
|
|
SIM->SOPT5 = ((SIM->SOPT5 &
|
|
/* Mask bits to zero which are setting */
|
|
(~(SIM_SOPT5_LPUART1TXSRC_MASK | SIM_SOPT5_LPUART1RXSRC_MASK)))
|
|
/* LPUART0 Transmit Data Source Select: LPUART0_TX pin. */
|
|
| SIM_SOPT5_LPUART1TXSRC(SOPT5_LPUART1TXSRC_LPUART_TX)
|
|
/* LPUART0 Receive Data Source Select: LPUART_RX pin. */
|
|
| SIM_SOPT5_LPUART1RXSRC(SOPT5_LPUART1RXSRC_LPUART_RX));
|
|
|
|
BOARD_BootClockRUN();
|
|
SystemCoreClockUpdate();
|
|
CLOCK_SetLpuart1Clock(1);
|
|
|
|
#if CFG_TUSB_OS == OPT_OS_NONE
|
|
// 1ms tick timer
|
|
SysTick_Config(SystemCoreClock / 1000);
|
|
#elif CFG_TUSB_OS == OPT_OS_FREERTOS
|
|
// If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
|
|
NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
|
|
#endif
|
|
|
|
lpuart_config_t uart_config;
|
|
LPUART_GetDefaultConfig(&uart_config);
|
|
uart_config.baudRate_Bps = CFG_BOARD_UART_BAUDRATE;
|
|
uart_config.enableTx = true;
|
|
uart_config.enableRx = true;
|
|
LPUART_Init(UART_PORT, &uart_config, CLOCK_GetFreq(kCLOCK_McgIrc48MClk));
|
|
|
|
// USB
|
|
CLOCK_EnableUsbfs0Clock(kCLOCK_UsbSrcIrc48M, 48000000U);
|
|
}
|
|
|
|
//--------------------------------------------------------------------+
|
|
// Board porting API
|
|
//--------------------------------------------------------------------+
|
|
|
|
void board_led_write(bool state)
|
|
{
|
|
if (state) {
|
|
LED_GPIO->PDDR |= GPIO_FIT_REG((1UL << LED_PIN));
|
|
} else {
|
|
LED_GPIO->PDDR &= GPIO_FIT_REG(~(1UL << LED_PIN));
|
|
}
|
|
// GPIO_PinWrite(GPIOA, 1, state ? LED_STATE_ON : (1-LED_STATE_ON) );
|
|
// GPIO_PinWrite(GPIOA, 2, state ? (1-LED_STATE_ON) : LED_STATE_ON );
|
|
}
|
|
|
|
uint32_t board_button_read(void)
|
|
{
|
|
#ifdef BUTTON_PIN
|
|
return BUTTON_STATE_ACTIVE == GPIO_PinRead(BUTTON_GPIO, BUTTON_PIN);
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
int board_uart_read(uint8_t* buf, int len)
|
|
{
|
|
LPUART_ReadBlocking(UART_PORT, buf, len);
|
|
return len;
|
|
}
|
|
|
|
int board_uart_write(void const * buf, int len)
|
|
{
|
|
LPUART_WriteBlocking(UART_PORT, (uint8_t const*) buf, len);
|
|
return len;
|
|
}
|
|
|
|
#if CFG_TUSB_OS == OPT_OS_NONE
|
|
volatile uint32_t system_ticks = 0;
|
|
void SysTick_Handler(void)
|
|
{
|
|
system_ticks++;
|
|
}
|
|
|
|
uint32_t board_millis(void)
|
|
{
|
|
return system_ticks;
|
|
}
|
|
#endif
|