[问答]

STM32F051K8TX hal库生成USART2库文件不能收发数据怎么解决？

问答对人有帮助，内容完整，我也想知道答案 0 芯片：STM32F051K8TX 外部晶振：16Mhz 使用串口：USART2，中断发送接收使用STM32Cube 生成 STM32F051K8TX芯片的工程文件，发送串口数据，串口调试工具无法接收到数据。使用在线调试，总是在这个地方就返回 (huart->gState == HAL_UART_STATE_READY)，一直找不到原因，请帮忙查看什么原因，谢谢。使用一个LED做指示，可以正常工作，生成的工程，只改了main.C文件，其它文件没有改。以下为 main.C 文件 /* USER CODE BEGIN Header / /* ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * © Copyright (c) 2020 STMicroelectronics. * All rights reserved. * * This software component is licensed by ST under BSD 3-Clause license, * the "License"; You may not use this file except in compliance with the * License. You may obtain a copy of the License at: * opensource.org/licenses/BSD-3-Clause * ****************************************************************************** / / USER CODE END Header / / Includes ------------------------------------------------------------------/ #include "main.h" #include "usart.h" #include "gpio.h" / Private includes ----------------------------------------------------------/ / USER CODE BEGIN Includes / #include "stdio.h" / USER CODE END Includes / / Private typedef -----------------------------------------------------------/ / USER CODE BEGIN PTD / #ifdef __GNUC_ #define PUTCHAR_PROTOTYPE int __io_putchar(int ch) #else #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE f) #endif //重映射printf的功能 PUTCHAR_PROTOTYPE { HAL_UART_Transmit( huart2, (uint8_t ) ch, 1, 0xFFFF); return ch; } / 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 / void HAL_UART_RxCpltCallback(UART_HandleTypeDef huart); void HAL_UART_TxCpltCallback(UART_HandleTypeDef huart); / USER CODE END PFP / / Private user code ---------------------------------------------------------/ / USER CODE BEGIN 0 / uint8_t ch = 'k'; uint8_t kRxBuffer[20]; uint8_t kTxBuffer[5]={'w','a','n','g','n'}; / 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(); / USER CODE BEGIN 2 / HAL_UART_Receive_IT( huart2,(uint8_t )kRxBuffer, 10); HAL_GPIO_WritePin(GPIOA,GPIO_PIN_0,GPIO_PIN_RESET); /* USER CODE END 2 / / Infinite loop / / USER CODE BEGIN WHILE / while (1) { printf("nr welcome to www.waveshere.com !!!nr"); HAL_Delay(500); //HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_8); HAL_UART_Transmit( huart2,(uint8_t ) ch, 1, 0xffff); HAL_UART_Transmit_IT( huart2, (uint8_t )kTxBuffer, 5); / USER CODE END WHILE / / 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 CPU, AHB and APB busses clocks / RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL3; RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV1; if (HAL_RCC_OscConfig( RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } /* Initializes the CPU, AHB and APB busses clocks / RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK\|RCC_CLOCKTYPE_SYSCLK \|RCC_CLOCKTYPE_PCLK1; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1; if (HAL_RCC_ClockConfig( RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK) { Error_Handler(); } } / USER CODE BEGIN 4 / void HAL_UART_RxCpltCallback(UART_HandleTypeDef huart) { UNUSED(huart); HAL_UART_Transmit( huart2,(uint8_t )kRxBuffer, 10, 0xffff); HAL_UART_Receive_IT( huart2,(uint8_t )kRxBuffer, 10); } void HAL_UART_TxCpltCallback(UART_HandleTypeDef huart) { HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_8); } / 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 / / 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, tex: printf("Wrong parameters value: file %s on line %drn", file, line) / / USER CODE END 6 / } #endif / USE_FULL_ASSERT / /********************* (C) COPYRIGHT STMicroelectronics *END OF FILE/ 以下是 USART.C文件 / ****************************************************************************** * File Name : USART.c * Description : This file provides code for the configuration * of the USART instances. ****************************************************************************** * @attention * * © Copyright (c) 2020 STMicroelectronics. * All rights reserved. * * This software component is licensed by ST under BSD 3-Clause license, * the "License"; You may not use this file except in compliance with the * License. You may obtain a copy of the License at: * opensource.org/licenses/BSD-3-Clause * ****************************************************************************** / / Includes ------------------------------------------------------------------/ #include "usart.h" / USER CODE BEGIN 0 / / USER CODE END 0 / UART_HandleTypeDef huart2; / USART2 init function / void MX_USART2_UART_Init(void) { huart2.Instance = USART2; huart2.Init.BaudRate = 115200; huart2.Init.WordLength = UART_WORDLENGTH_8B; huart2.Init.StopBits = UART_STOPBITS_1; huart2.Init.Parity = UART_PARITY_NONE; huart2.Init.Mode = UART_MODE_TX_RX; huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart2.Init.OverSampling = UART_OVERSAMPLING_16; huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE; huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT; if (HAL_UART_Init( huart2) != HAL_OK) { Error_Handler(); } } void HAL_UART_MspInit(UART_HandleTypeDef uartHandle) { GPIO_InitTypeDef GPIO_InitStruct = {0}; if(uartHandle->Instance==USART2) { /* USER CODE BEGIN USART2_MspInit 0 / / USER CODE END USART2_MspInit 0 / / USART2 clock enable / __HAL_RCC_USART2_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); /USART2 GPIO Configuration PA2 ------> USART2_TX PA3 ------> USART2_RX / GPIO_InitStruct.Pin = GPIO_PIN_2\|GPIO_PIN_3; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; GPIO_InitStruct.Alternate = GPIO_AF1_USART2; HAL_GPIO_Init(GPIOA, GPIO_InitStruct); /* USART2 interrupt Init / HAL_NVIC_SetPriority(USART2_IRQn, 1, 0); HAL_NVIC_EnableIRQ(USART2_IRQn); / USER CODE BEGIN USART2_MspInit 1 / / USER CODE END USART2_MspInit 1 / } } void HAL_UART_MspDeInit(UART_HandleTypeDef uartHandle) { if(uartHandle->Instance==USART2) { /* USER CODE BEGIN USART2_MspDeInit 0 / / USER CODE END USART2_MspDeInit 0 / / Peripheral clock disable / __HAL_RCC_USART2_CLK_DISABLE(); /USART2 GPIO Configuration PA2 ------> USART2_TX PA3 ------> USART2_RX / HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2\|GPIO_PIN_3); /* USART2 interrupt Deinit / HAL_NVIC_DisableIRQ(USART2_IRQn); / USER CODE BEGIN USART2_MspDeInit 1 / / USER CODE END USART2_MspDeInit 1 / } } / USER CODE BEGIN 1 / / USER CODE END 1 / /********************* (C) COPYRIGHT STMicroelectronics *END OF FILE**/ 0 本主题由 Harmony技术专家于 2024-4-15 09:54 审核通过
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答案对人有帮助，有参考价值 0 先简单点，不要接收，只发送，循环发送，也不要中断，一步一步的来

2024-4-15 09:44:12 评论举报王雪