153 lines
4.8 KiB
C
153 lines
4.8 KiB
C
/*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2019 Ha Thach (tinyusb.org)
|
|
*
|
|
* 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 "chip.h"
|
|
#include "bsp/board_api.h"
|
|
|
|
//--------------------------------------------------------------------+
|
|
// Forward USB interrupt events to TinyUSB IRQ Handler
|
|
//--------------------------------------------------------------------+
|
|
void USB_IRQHandler(void)
|
|
{
|
|
tud_int_handler(0);
|
|
}
|
|
|
|
//--------------------------------------------------------------------+
|
|
// MACRO TYPEDEF CONSTANT ENUM
|
|
//--------------------------------------------------------------------+
|
|
#define LED_PORT 0
|
|
#define LED_PIN 7
|
|
|
|
// Joytick Down if connected to LPCXpresso Base board
|
|
#define BUTTON_PORT 1
|
|
#define BUTTON_PIN 20
|
|
|
|
//static const struct {
|
|
// uint8_t port;
|
|
// uint8_t pin;
|
|
//} buttons[] =
|
|
//{
|
|
// {1, 22 }, // Joystick up
|
|
// {1, 20 }, // Joystick down
|
|
// {1, 23 }, // Joystick left
|
|
// {1, 21 }, // Joystick right
|
|
// {1, 19 }, // Joystick press
|
|
// {0, 1 }, // SW3
|
|
//};
|
|
|
|
/* System oscillator rate and RTC oscillator rate */
|
|
const uint32_t OscRateIn = 12000000;
|
|
const uint32_t ExtRateIn = 0;
|
|
|
|
/* Pin muxing table, only items that need changing from their default pin
|
|
state are in this table. */
|
|
static const PINMUX_GRP_T pinmuxing[] =
|
|
{
|
|
{0, 1, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_1 used for CLKOUT */
|
|
{0, 2, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_PULLUP)}, /* PIO0_2 used for SSEL */
|
|
{0, 3, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_3 used for USB_VBUS */
|
|
{0, 6, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_6 used for USB_CONNECT */
|
|
{0, 8, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_8 used for MISO0 */
|
|
{0, 9, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_9 used for MOSI0 */
|
|
{0, 11, (IOCON_FUNC2 | IOCON_ADMODE_EN | IOCON_FILT_DIS)}, /* PIO0_11 used for AD0 */
|
|
{0, 18, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_18 used for RXD */
|
|
{0, 19, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO0_19 used for TXD */
|
|
{1, 29, (IOCON_FUNC1 | IOCON_RESERVED_BIT_7 | IOCON_MODE_INACT)}, /* PIO1_29 used for SCK0 */
|
|
};
|
|
|
|
// Invoked by startup code
|
|
void SystemInit(void)
|
|
{
|
|
/* Enable IOCON clock */
|
|
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_IOCON);
|
|
Chip_IOCON_SetPinMuxing(LPC_IOCON, pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T));
|
|
Chip_SetupXtalClocking();
|
|
}
|
|
|
|
void board_init(void)
|
|
{
|
|
SystemCoreClockUpdate();
|
|
|
|
#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
|
|
|
|
Chip_GPIO_Init(LPC_GPIO_PORT);
|
|
|
|
// LED
|
|
Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, LED_PORT, LED_PIN);
|
|
|
|
// Button
|
|
Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN);
|
|
|
|
// USB: Setup PLL clock, and power
|
|
Chip_USB_Init();
|
|
}
|
|
|
|
//--------------------------------------------------------------------+
|
|
// Board porting API
|
|
//--------------------------------------------------------------------+
|
|
|
|
#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
|
|
|
|
void board_led_write(bool state)
|
|
{
|
|
Chip_GPIO_SetPinState(LPC_GPIO_PORT, LED_PORT, LED_PIN, state);
|
|
}
|
|
|
|
uint32_t board_button_read(void)
|
|
{
|
|
// active low
|
|
return Chip_GPIO_GetPinState(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN) ? 0 : 1;
|
|
}
|
|
|
|
int board_uart_read(uint8_t* buf, int len)
|
|
{
|
|
(void) buf; (void) len;
|
|
return 0;
|
|
}
|
|
|
|
int board_uart_write(void const * buf, int len)
|
|
{
|
|
(void) buf; (void) len;
|
|
return 0;
|
|
}
|