83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
#include <stdio.h>
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#include "ch32v20x.h"
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#include "bsp/board_api.h"
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#include "board.h"
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__attribute__((interrupt))
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void USBHD_IRQHandler(void) {
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tud_int_handler(0);
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}
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#if CFG_TUSB_OS == OPT_OS_NONE
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volatile uint32_t system_ticks = 0;
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__attribute__((interrupt))
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void SysTick_Handler(void) {
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SysTick->SR = 0;
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system_ticks++;
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}
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uint32_t SysTick_Config(uint32_t ticks) {
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NVIC_EnableIRQ(SysTicK_IRQn);
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SysTick->CTLR = 0;
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SysTick->SR = 0;
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SysTick->CNT = 0;
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SysTick->CMP = ticks-1;
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SysTick->CTLR = 0xF;
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return 0;
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}
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uint32_t board_millis(void) {
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return system_ticks;
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}
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#endif
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void board_init(void) {
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__disable_irq();
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#if CFG_TUSB_OS == OPT_OS_NONE
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SysTick_Config(SystemCoreClock / 1000);
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#endif
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switch (SystemCoreClock) {
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case 48000000: RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_Div1); break;
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case 96000000: RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_Div2); break;
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case 144000000: RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_Div3); break;
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default: TU_ASSERT(0,); break;
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}
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RCC_AHBPeriphClockCmd(RCC_AHBPeriph_OTG_FS, ENABLE);
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LED_CLOCK_EN();
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GPIO_InitTypeDef GPIO_InitStructure = {
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.GPIO_Pin = LED_PIN,
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.GPIO_Mode = GPIO_Mode_Out_OD,
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.GPIO_Speed = GPIO_Speed_50MHz,
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};
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GPIO_Init(LED_PORT, &GPIO_InitStructure);
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__enable_irq();
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board_delay(2);
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}
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void board_led_write(bool state) {
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GPIO_WriteBit(LED_PORT, LED_PIN, state);
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}
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uint32_t board_button_read(void) {
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return false;
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}
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int board_uart_read(uint8_t *buf, int len) {
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(void) buf;
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(void) len;
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return 0;
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}
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int board_uart_write(void const *buf, int len) {
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(void) buf;
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(void) len;
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return len;
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}
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