网站开发 法律声明,装饰工程公司取名推荐,玉林网站优化,嘉兴网站开发公司要求#xff1a;一个按键实现呼吸灯的控制#xff0c;一个按键控制LED灯的闪烁#xff0c;串口发送数据控制灯的开关
定时器配置
1.选择需要的定时器2.配置基础参数#xff08;根据时钟树给定时器输入的时钟#xff09;3.打开中断4.在主函数里打开中断
定时器扫描按键 … 要求一个按键实现呼吸灯的控制一个按键控制LED灯的闪烁串口发送数据控制灯的开关
定时器配置
1.选择需要的定时器2.配置基础参数根据时钟树给定时器输入的时钟3.打开中断4.在主函数里打开中断
定时器扫描按键 呼吸灯使用TIM2的Channel2的PWM脉冲生成
1.在定时器配置相应通道2.在GPIO中配置相应引脚为复用推挽输出
呼吸灯不使用PWM脉冲生成 1.0
/* USER CODE BEGIN Header */
/********************************************************************************* file : main.c* brief : Main program body******************************************************************************* attention** Copyright (c) 2025 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 *//* 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 */
uint16_t mode10,mode20;//0表示关闭mode1为闪烁mode2为呼吸灯
uint16_t value0,dir1;//value表示当前PWM值dir表示方向1为暗变亮0为亮变暗
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{if(htim-InstanceTIM3)//TIM3控制闪烁{if(mode11){HAL_GPIO_TogglePin(GPIOA,GPIO_PIN_0);}else{HAL_GPIO_WritePin(GPIOA,GPIO_PIN_0,GPIO_PIN_SET);}}if(htim-InstanceTIM2)//TIM2控制呼吸灯{if( mode2 1) {if(dir){value;if(value 99) dir 0;}else{value--;if(value 0)dir 1;}__HAL_TIM_SET_COMPARE(htim2, TIM_CHANNEL_2, value);}else{value 0; __HAL_TIM_SET_COMPARE(htim2, TIM_CHANNEL_2, 100); }}}#define KEY0 HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_6)
#define KEY1 HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_1)
void Scan_Keys()
{if(KEY0GPIO_PIN_RESET){HAL_Delay(10);if(KEY0GPIO_PIN_RESET){while(KEY0GPIO_PIN_RESET);mode2!mode2;}}if(KEY1GPIO_PIN_RESET){HAL_Delay(10);if(KEY1GPIO_PIN_RESET){while(KEY1GPIO_PIN_RESET);mode1!mode1;}}
}uint8_t Tx_str1[]LED1 Open!\r\n;
uint8_t Tx_str2[]LED1 Closed!\r\n;
uint8_t Tx_str3[]LED2 Open!\r\n;
uint8_t Tx_str4[]LED2 Closed!\r\n;
uint8_t Rx_data0;
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{if(huart-InstanceUSART1){if(Rx_data0xa1){HAL_UART_Transmit(huart1,Tx_str1,sizeof(Tx_str1),10000);mode11;HAL_UART_Receive_IT(huart1,Rx_data,1);}else if(Rx_data0xa2){HAL_UART_Transmit(huart1,Tx_str2,sizeof(Tx_str2),10000); mode10;HAL_UART_Receive_IT(huart1,Rx_data,1);}else if(Rx_data0xa3){HAL_UART_Transmit(huart1,Tx_str3,sizeof(Tx_str3),10000); mode21;HAL_UART_Receive_IT(huart1,Rx_data,1);}else if(Rx_data0xa4){HAL_UART_Transmit(huart1,Tx_str4,sizeof(Tx_str4),10000); mode20;HAL_UART_Receive_IT(huart1,Rx_data,1);}}}/*** 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_TIM2_Init();MX_TIM3_Init();MX_USART1_UART_Init();/* USER CODE BEGIN 2 *///初始设置为关闭HAL_GPIO_WritePin(GPIOA,GPIO_PIN_0,GPIO_PIN_SET);HAL_GPIO_WritePin(GPIOA,GPIO_PIN_1,GPIO_PIN_SET);//开启定时中断HAL_TIM_Base_Start_IT(htim2);HAL_TIM_Base_Start_IT(htim3);//开启串口接收中断HAL_UART_Receive_IT(huart1,Rx_data,1);//开启PWMHAL_TIM_PWM_Start(htim2, TIM_CHANNEL_2);/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){/* USER CODE END WHILE *///扫描按键Scan_Keys();/* USER CODE BEGIN 3 */}/* USER CODE END 3 */
}/*** brief System Clock Configuration* retval None*/
void SystemClock_Config(void)
{RCC_OscInitTypeDef RCC_OscInitStruct {0};RCC_ClkInitTypeDef RCC_ClkInitStruct {0};/** Initializes the RCC Oscillators according to the specified parameters* in the RCC_OscInitTypeDef structure.*/RCC_OscInitStruct.OscillatorType RCC_OSCILLATORTYPE_HSE;RCC_OscInitStruct.HSEState RCC_HSE_ON;RCC_OscInitStruct.HSEPredivValue RCC_HSE_PREDIV_DIV1;RCC_OscInitStruct.HSIState RCC_HSI_ON;RCC_OscInitStruct.PLL.PLLState RCC_PLL_ON;RCC_OscInitStruct.PLL.PLLSource RCC_PLLSOURCE_HSE;RCC_OscInitStruct.PLL.PLLMUL RCC_PLL_MUL2;if (HAL_RCC_OscConfig(RCC_OscInitStruct) ! HAL_OK){Error_Handler();}/** Initializes the CPU, AHB and APB buses clocks*/RCC_ClkInitStruct.ClockType RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;RCC_ClkInitStruct.SYSCLKSource RCC_SYSCLKSOURCE_PLLCLK;RCC_ClkInitStruct.AHBCLKDivider RCC_SYSCLK_DIV1;RCC_ClkInitStruct.APB1CLKDivider RCC_HCLK_DIV1;RCC_ClkInitStruct.APB2CLKDivider RCC_HCLK_DIV1;if (HAL_RCC_ClockConfig(RCC_ClkInitStruct, FLASH_LATENCY_0) ! HAL_OK){Error_Handler();}
}/* USER CODE BEGIN 4 *//* USER CODE END 4 *//*** brief This function is executed in case of error occurrence.* retval None*/
void Error_Handler(void)
{/* USER CODE BEGIN Error_Handler_Debug *//* User can add his own implementation to report the HAL error return state */__disable_irq();while (1){}/* USER CODE END Error_Handler_Debug */
}#ifdef USE_FULL_ASSERT
/*** brief Reports the name of the source file and the source line number* where the assert_param error has occurred.* param file: pointer to the source file name* param line: assert_param error line source number* retval None*/
void assert_failed(uint8_t *file, uint32_t line)
{/* USER CODE BEGIN 6 *//* User can add his own implementation to report the file name and line number,ex: printf(Wrong parameters value: file %s on line %d\r\n, file, line) *//* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */2.0 只能说勤加练习陆陆续续写了一天一开始定时器在主函数里没打开白费半天一开始调试的时候就疑惑为什么没有结果。后面会迭代现在先去转电机了
