146 lines
4.2 KiB
C
146 lines
4.2 KiB
C
/*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2018, hathach (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.
|
|
*/
|
|
|
|
/* metadata:
|
|
manufacturer: NXP
|
|
*/
|
|
|
|
#include "fsl_device_registers.h"
|
|
#include "fsl_gpio.h"
|
|
#include "fsl_power.h"
|
|
#include "fsl_iocon.h"
|
|
|
|
#include "bsp/board_api.h"
|
|
#include "board.h"
|
|
|
|
//--------------------------------------------------------------------+
|
|
// Forward USB interrupt events to TinyUSB IRQ Handler
|
|
//--------------------------------------------------------------------+
|
|
void USB0_IRQHandler(void) {
|
|
tud_int_handler(0);
|
|
}
|
|
|
|
void board_init(void) {
|
|
// Enable IOCON clock
|
|
CLOCK_EnableClock(kCLOCK_Iocon);
|
|
|
|
// Enable GPIO0 clock
|
|
CLOCK_EnableClock(kCLOCK_Gpio0);
|
|
|
|
// Init 96 MHz clock
|
|
BootClockFROHF96M();
|
|
|
|
#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
|
|
|
|
GPIO_PortInit(GPIO, LED_PORT);
|
|
GPIO_PortInit(GPIO, BUTTON_PORT);
|
|
|
|
// LED
|
|
gpio_pin_config_t const led_config = {kGPIO_DigitalOutput, 0};
|
|
GPIO_PinInit(GPIO, LED_PORT, LED_PIN, &led_config);
|
|
board_led_write(true);
|
|
|
|
// Button
|
|
gpio_pin_config_t const button_config = {kGPIO_DigitalInput, 0};
|
|
GPIO_PinInit(GPIO, BUTTON_PORT, BUTTON_PIN, &button_config);
|
|
|
|
// USB
|
|
const uint32_t port1_pin6_config = (
|
|
IOCON_PIO_FUNC7 | /* Pin is configured as USB0_VBUS */
|
|
IOCON_PIO_MODE_INACT | /* No addition pin function */
|
|
IOCON_PIO_INV_DI | /* Input function is not inverted */
|
|
IOCON_PIO_DIGITAL_EN | /* Enables digital function */
|
|
IOCON_PIO_INPFILT_OFF | /* Input filter disabled */
|
|
IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */
|
|
);
|
|
IOCON_PinMuxSet(IOCON, 1, 6, port1_pin6_config); /* PORT1 PIN6 (coords: 26) is configured as USB0_VBUS */
|
|
|
|
POWER_DisablePD(kPDRUNCFG_PD_USB0_PHY); /*Turn on USB Phy */
|
|
CLOCK_EnableUsbfs0Clock(kCLOCK_UsbSrcFro, CLOCK_GetFreq(kCLOCK_FroHf)); /* enable USB IP clock */
|
|
}
|
|
|
|
//--------------------------------------------------------------------+
|
|
// Board porting API
|
|
//--------------------------------------------------------------------+
|
|
|
|
void board_led_write(bool state) {
|
|
GPIO_PinWrite(GPIO, LED_PORT, LED_PIN, state ? LED_STATE_ON : (1 - LED_STATE_ON));
|
|
}
|
|
|
|
uint32_t board_button_read(void) {
|
|
// active low
|
|
return 1 - GPIO_PinRead(GPIO, BUTTON_PORT, BUTTON_PIN);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
#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
|
|
|
|
#ifndef __ICCARM__
|
|
// Implement _start() since we use linker flag '-nostartfiles'.
|
|
// Requires defined __STARTUP_CLEAR_BSS,
|
|
extern int main(void);
|
|
|
|
TU_ATTR_UNUSED void _start(void) {
|
|
// called by startup code
|
|
main();
|
|
while (1) {}
|
|
}
|
|
|
|
#ifdef __clang__
|
|
void _exit (int __status) {
|
|
while (1) {}
|
|
}
|
|
#endif
|
|
|
|
#endif
|