ST意法半导体中文论坛关于 stm32F05 hal 库生成 USART2 库文件不能收发数据问题请教

long609521-9517 发表于 2020-5-13 09:16:20

关于 stm32F05 hal 库生成 USART2 库文件不能收发数据问题请教

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。

http://bbs.21ic.com/data/attachment/forum/202005/12/205922cjxdxwwyzp9ip1rx.png.thumb.jpg
http://bbs.21ic.com/data/attachment/forum/202005/12/205950djfzxxj9yxlw3eof.png.thumb.jpg
http://bbs.21ic.com/data/attachment/forum/202005/12/210013m52u626ha6valrva.png.thumb.jpg
以下为 main.C 文件
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file       : main.c
* @brief       : Main program body
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2020 STMicroelectronics.
* All rights reserved.</center></h2>
*
* 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;
uint8_t kTxBuffer={'w','a','n','g','\n'};

/* USER CODE END 0 */

/**
* @briefThe 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("\n\r welcome to www.waveshere.com !!!\n\r");

            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 */

/**
* @briefThis 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 */
}

#ifdefUSE_FULL_ASSERT
/**
* @briefReports the name of the source file and the source line number
*       where the assert_param error has occurred.
* @paramfile: pointer to the source file name
* @paramline: 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 %d\r\n", 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
*
* <h2><center>© Copyright (c) 2020 STMicroelectronics.
* All rights reserved.</center></h2>
*
* 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****/

BG4RFF 发表于 2020-5-13 15:02:17

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

long609521-9517 发表于 2020-5-13 16:56:27

BG4RFF 发表于 2020-5-13 15:02
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

感谢回复。

我使用了printf 函数向串口工具发送数据，也一直是在 if(huart->gState == HAL_UART_STATE_READY) 这行代码跳出循环。感觉串口一直在忙，被占用。但是直接生成的代码都是配置好的呀。

BG4RFF 发表于 2020-5-19 11:39:54

接收回调函数里面占用的时间忒长，这样好像不太好

BG4RFF 发表于 2020-5-19 11:41:10

接收，中断，放到环形缓存，主函数循环检测是否有新数据

lebment 发表于 2020-5-20 10:44:40

没什么好建议的，这种bug只能自己调。

butterflyspring 发表于 2020-5-25 10:58:30

同意楼上观点，单步调试，对照手册或者参考例程就能找出原因。
另外一般不会用到 HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle) 这个函数。

caoenq 发表于 2020-5-26 09:26:39

看了一下各位的评论，基本都跑题了。。。应该是鄙视HAL库的旋律才对。。。

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关于 stm32F05 hal 库生成 USART2 库文件不能收发数据问题请教