270 lines
7.3 KiB
C
270 lines
7.3 KiB
C
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/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file : main.c
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* @brief : Main program body
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2024 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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#include "usart.h"
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#include "gpio.h"
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/* Private includes ----------------------------------------------------------*/
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/* USER CODE BEGIN Includes */
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#include "variable.h"
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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/* USER CODE END Includes */
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/* Private typedef -----------------------------------------------------------*/
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/* USER CODE BEGIN PTD */
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/* USER CODE END PTD */
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/* Private define ------------------------------------------------------------*/
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/* USER CODE BEGIN PD */
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/* USER CODE END PD */
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/* Private macro -------------------------------------------------------------*/
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/* USER CODE BEGIN PM */
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/* USER CODE END PM */
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/* Private variables ---------------------------------------------------------*/
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/* USER CODE BEGIN PV */
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stSysTickTimer sSysTickTimer = {
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0, 0, 0, 0
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};
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uint16_t mSecCount = 0;
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uint16_t bSecondIsOk = 0;
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#define RXBUFFSIZE 256
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uint8_t RxBuff[RXBUFFSIZE];
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uint8_t aRxBuff;
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uint16_t RxCount = 0;
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/* USER CODE END PV */
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/* Private function prototypes -----------------------------------------------*/
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void SystemClock_Config(void);
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/* USER CODE BEGIN PFP */
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/* USER CODE END PFP */
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/* Private user code ---------------------------------------------------------*/
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/* USER CODE BEGIN 0 */
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void delay_us(uint32_t nus) {
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uint32_t ticks;
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uint32_t told, tnow, tcnt=0;
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uint32_t reload = SysTick->LOAD; // LOAD的<44>??
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ticks = nus * SYSTICKCLK; // <20>?要的节拍<E88A82>?
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told = SysTick->VAL; // 刚进入时的计数器<E695B0>?
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while (1) {
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tnow = SysTick->VAL;
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if (tnow != told) {
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if (tnow < told)
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tcnt += told - tnow; // SYSTICK是一个<E4B880>?<3F>减的计数器就可以了
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else
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tcnt += reload - tnow + told;
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told = tnow;
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if (tcnt >= ticks) break; // 事件超过/等于要延迟的时间，则<EFBC8C>?<3F>?
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}
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}
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}
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// struct __FILE {
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// int handle;
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// };
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FILE __stdout;
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void _sys_exit(int x) {
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x = x;
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}
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int fputc(int ch, FILE *f) {
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while ((USART1->ISR & USART_ISR_TC) == 0) ;
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USART1->TDR = (uint8_t) ch;
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return ch;
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}
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/* USER CODE END 0 */
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/**
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* @brief The application entry point.
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* @retval int
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*/
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int main(void)
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{
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/* USER CODE BEGIN 1 */
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/* USER CODE END 1 */
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/* MCU Configuration--------------------------------------------------------*/
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/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
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HAL_Init();
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/* USER CODE BEGIN Init */
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/* USER CODE END Init */
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/* Configure the system clock */
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SystemClock_Config();
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/* USER CODE BEGIN SysInit */
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/* USER CODE END SysInit */
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/* Initialize all configured peripherals */
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MX_GPIO_Init();
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MX_USART1_UART_Init();
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/* USER CODE BEGIN 2 */
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HAL_UART_Receive_IT(&huart1, &aRxBuff, 1);
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/* USER CODE END 2 */
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/* Infinite loop */
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/* USER CODE BEGIN WHILE */
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while (1)
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{
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/* USER CODE END WHILE */
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/* USER CODE BEGIN 3 */
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// if (bSecondIsOk) {
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// bSecondIsOk = 0;
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// HAL_GPIO_TogglePin(TickClock_LED_GPIO_Port, TickClock_LED_Pin);
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// }
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// if (sSysTickTimer.bTenMilSecOk) {
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// sSysTickTimer.bTenMilSecOk = 0;
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// }
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if (sSysTickTimer.bTimeOk) {
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sSysTickTimer.bTimeOk = 0;
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HAL_GPIO_TogglePin(TickClock_LED_GPIO_Port, TickClock_LED_Pin);
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// HAL_UART_Transmit(&huart1, (uint8_t*)"Hello Ecnuer\r\n", 14, 100);
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printf("Hello Ecnuer 1\r\n");
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}
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// HAL_GPIO_TogglePin(TickClock_LED_GPIO_Port, TickClock_LED_Pin);
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// // HAL_Delay(500);
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// for (int i = 0; i < 50000; i++) {
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// delay_us(10); // 用for循环产生10微秒
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// }
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// delay_us(500000);
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}
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/* USER CODE END 3 */
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}
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/**
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* @brief System Clock Configuration
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* @retval None
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*/
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void SystemClock_Config(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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/** Configure the main internal regulator output voltage
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*/
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HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1_BOOST);
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/** Initializes the RCC Oscillators according to the specified parameters
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* in the RCC_OscInitTypeDef structure.
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*/
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV6;
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RCC_OscInitStruct.PLL.PLLN = 85;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
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RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
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RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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Error_Handler();
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}
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/** Initializes the CPU, AHB and APB buses clocks
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
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|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
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{
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Error_Handler();
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}
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}
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/* USER CODE BEGIN 4 */
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void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) {
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if (huart == &huart1) {
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if (RxCount >= 255) {
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RxCount = 0;
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memset(RxBuff, 0, sizeof(RxBuff));
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HAL_UART_Transmit(huart, (uint8_t*)"数据溢出\r\n", 10, 0xFFFF);
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} else {
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RxBuff[RxCount++] = aRxBuff;
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if (RxBuff[RxCount - 1] == 0x0A && RxBuff[RxCount - 2] == 0x0D) {
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HAL_UART_Transmit(huart, RxBuff, RxCount, 0xFFFF);
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RxCount = 0;
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memset(RxBuff, 0, sizeof(RxBuff));
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}
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}
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HAL_UART_Receive_IT(huart, &aRxBuff, 1);
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}
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}
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/* USER CODE END 4 */
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/**
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* @brief This function is executed in case of error occurrence.
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* @retval None
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*/
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void Error_Handler(void)
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{
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/* USER CODE BEGIN Error_Handler_Debug */
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/* User can add his own implementation to report the HAL error return state */
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__disable_irq();
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while (1)
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{
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}
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/* USER CODE END Error_Handler_Debug */
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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/* USER CODE BEGIN 6 */
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* USER CODE END 6 */
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}
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#endif /* USE_FULL_ASSERT */
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