STM32

存作业用

1

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/* USER CODE BEGIN 2 */
	HAL_GPIO_WritePin(GPIOD, GPIO_PIN_12,GPIO_PIN_SET);
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
		GPIO_PinState pinstate=HAL_GPIO_ReadPin(GPIOD, GPIO_PIN_10);
		if(pinstate==GPIO_PIN_SET)
		{
			HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_13);
			HAL_Delay(1000);
		}
  }

2



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/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "tim.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
int flag;
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
	if(GPIO_Pin==GPIO_PIN_13)flag=1;
}
/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_USART2_UART_Init();
  MX_USART1_UART_Init();
  MX_USART3_UART_Init();
  MX_TIM1_Init();
  MX_TIM2_Init();
  /* USER CODE BEGIN 2 */
	HAL_GPIO_WritePin(GPIOD,GPIO_PIN_12,GPIO_PIN_SET);
	HAL_GPIO_WritePin(GPIOD,GPIO_PIN_10,GPIO_PIN_RESET);
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while(1)
	{
		if(flag)
		{
			flag=0;
			int i=3;
			while(i--)
			{
				HAL_GPIO_TogglePin(GPIOC,GPIO_PIN_13);
				HAL_Delay(250);
			}
		}
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
	}	
  
	
  /* USER CODE END 3 */
}

3.1

使用串口重定向输出，每隔500ms输出一次。输出内容为你的名字的拼音。比如我是任昊翔，那输出内容为“RenHaoxiang\n”，下一次在500ms后输出.

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/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <string.h>
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
char *s="MiaoJinShuo";
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_UART4_Init();
  MX_UART5_Init();
  MX_UART7_Init();
  /* USER CODE BEGIN 2 */

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
		HAL_UART_Transmit(&huart7,(uint8_t *)s,strlen(s),HAL_MAX_DELAY);
		HAL_Delay(500);
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

3.2

向串口中输入一个数字和结束符，LED灯将交替亮灯与熄灭对应毫秒数，
并且返回该数字除以24的余数，只返回一次。
比如输入100#，那么LED灯将亮灯100ms，然后熄灭100ms，同时返回100除以24的余数，接下来接着亮灯100ms，熄灭100ms……
输入2000#，那么LED灯将亮灯2000ms，然后熄灭2000ms，同时返回2000除以24的余数，接下来亮灯2000ms，熄灭2000ms……

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/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdlib.h>
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
uint8_t data,dex=0;
int t=50;
char s[100]="";
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
	if(huart==&huart7)
	{
		if(data!='#')
		{
			s[dex++]=data;
			HAL_UART_Receive_IT(&huart7,&data,1);
		}
		else
		{
			s[dex]='\0';
			dex=0;
			t=atoi(s);
			uint8_t m=t%24;
			HAL_UART_Transmit(&huart7,&m,sizeof(m),HAL_MAX_DELAY);
		}
	}
}
/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_UART4_Init();
  MX_UART5_Init();
  MX_UART7_Init();
  /* USER CODE BEGIN 2 */

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  HAL_UART_Receive_IT(&huart7,&data,1);
  while (1)
  {
		HAL_GPIO_TogglePin(GPIOC,GPIO_PIN_13);
		HAL_Delay(t);
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
		
  }
  /* USER CODE END 3 */
}

3.3

开启三个串口，一个连接电脑，两个互相连接，其中一个发送数据，一个接收数据，用电脑给主板发送一个‘a’，在板子收到‘a’之后，用发送数据的串口给接收数据的串口发送一串数据，数据内容为一个坐标，接收数据的串口在收到数据后，用连接电脑的串口给电脑返回坐标值。

例如使用UART5,UART7,UART8三个串口，其中UART5连接电脑，UART7与UART8相互连接，使用UART5给主板发送‘a’，主板收到后使用UART7发送一串坐标（假如坐标为100，100），则UART7发送的数据为“x100y100! ”，在UART8收到后主板通过UART5给电脑返回x=100，y=100

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/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <string.h>
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
uint8_t data,flag=0,dex=0;
char m[]="x105y195!";
char ans[20];
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
	if(huart==&huart4)
	{
		if(data=='a')flag=1;
		else HAL_UART_Receive_IT(&huart4,(uint8_t*)&data,1);
	}
	else if(huart==&huart5)
	{
		if(data=='!')
		{
			ans[dex] ='\0';
			HAL_UART_Transmit(&huart5,(uint8_t*)ans,strlen(ans),HAL_MAX_DELAY);
			dex=0;
		}
		else 
		{
			if(data=='y')ans[dex++]=',';
			ans[dex++]=data;
			if(data=='x'||data=='y')ans[dex++]='=';
			HAL_UART_Receive_IT(&huart5,(uint8_t*)&data,1);
		}
	}
}
/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_UART4_Init();
  MX_UART5_Init();
  MX_UART7_Init();
  /* USER CODE BEGIN 2 */

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  
	HAL_UART_Receive_IT(&huart4,(uint8_t*)&data,1);
  while (1)
  {
		if(flag)
		{
			HAL_UART_Transmit(&huart7,(uint8_t*)m,strlen(m),HAL_MAX_DELAY);
			flag=0;
		}
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
		
  }
  /* USER CODE END 3 */
}

4

1、定时打印：串口每隔 1 秒打印一次，每次打印的数字加 1（从 0 开始）
2、配置任一GPIO作为输出，在串口输入字符‘a’之前保持高电平，在串口输入字符‘a’后，使用定时器实现该GPIO电平每0.5s翻转一次；

任务要求：
不可以用循环加延时！两个任务互不干扰，同时进行，不要分开验收
任务2用示波器展示效果

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/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "tim.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
uint16_t t1,t2,cnt;
uint8_t flag=0,f,dex=0;
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
	if(huart==&huart1)
	{
		flag=1;
	}
}
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
	if(htim == &htim1)
	{
		HAL_UART_Transmit(&huart1,&dex,sizeof(dex),HAL_MAX_DELAY);
		dex++;
	}
	if(htim == &htim2 && flag==1)
	{
		cnt=t2;
		t2++;
	}
}

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_USART2_UART_Init();
  MX_USART1_UART_Init();
  MX_USART3_UART_Init();
  MX_TIM1_Init();
  MX_TIM2_Init();
  /* USER CODE BEGIN 2 */
	
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
	HAL_TIM_Base_Start_IT(&htim1);
	HAL_TIM_Base_Start_IT(&htim2);
	HAL_UART_Receive_IT(&huart1,&f,1);
  while(1)
	{
		
		if(t2-cnt>=500)
		{
			HAL_GPIO_TogglePin(GPIOD,GPIO_PIN_13);
			cnt=t2;
		}
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
	}	
  
	
  /* USER CODE END 3 */
}

Notes
STM32
https://miao62.github.io/2024/08/01/STM32/
Author
Miao
Posted on
August 1, 2024
Updated on
October 9, 2024
Licensed under