stm32的HAL库中存在的BUG

1.STM32Cube FW_F1 V1.8.0 的stm32f1xx_hal_tim.h 中1744行的宏定义

#define TIM_RESET_CAPTUREPOLARITY(__HANDLE__, __CHANNEL__) \
(((__CHANNEL__) == TIM_CHANNEL_1) ? ((__HANDLE__)->Instance->CCER &= ~(TIM_CCER_CC1P | TIM_CCER_CC1NP))):\
((__CHANNEL__) == TIM_CHANNEL_2) ? ((__HANDLE__)->Instance->CCER &= ~(TIM_CCER_CC2P | TIM_CCER_CC2NP)) :\
((__CHANNEL__) == TIM_CHANNEL_3) ? ((__HANDLE__)->Instance->CCER &= ~(TIM_CCER_CC3P)) :\
((__HANDLE__)->Instance->CCER &= ~(TIM_CCER_CC4P)))

 

红色部分多了一个括号

 

2.stm32f103c8t6串口在使用时，8位数据位+偶校验 是无法正常输出数据的，必须设置为9位数据位+偶校验

 1 static void MX_USART3_UART_Init(void)
 2 {
 3 
 4   /* USER CODE BEGIN USART3_Init 0 */
 5 
 6   /* USER CODE END USART3_Init 0 */
 7 
 8   /* USER CODE BEGIN USART3_Init 1 */
 9 
10   /* USER CODE END USART3_Init 1 */
11   huart3.Instance = USART3;
12   huart3.Init.BaudRate = 9600;
13   huart3.Init.WordLength = UART_WORDLENGTH_9B;
14   huart3.Init.StopBits = UART_STOPBITS_1;
15   huart3.Init.Parity = UART_PARITY_EVEN;
16   huart3.Init.Mode = UART_MODE_TX_RX;
17   huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
18   huart3.Init.OverSampling = UART_OVERSAMPLING_16;
19   if (HAL_UART_Init(&huart3) != HAL_OK)
20   {
21     Error_Handler();
22   }
23   /* USER CODE BEGIN USART3_Init 2 */
24 
25   /* USER CODE END USART3_Init 2 */
26 
27 }

 

static void MX_USART3_UART_Init(void){
  /* USER CODE BEGIN USART3_Init 0 */
  /* USER CODE END USART3_Init 0 */
  /* USER CODE BEGIN USART3_Init 1 */
  /* USER CODE END USART3_Init 1 */  huart3.Instance = USART3;  huart3.Init.BaudRate = 9600;  huart3.Init.WordLength = UART_WORDLENGTH_9B;  huart3.Init.StopBits = UART_STOPBITS_1;  huart3.Init.Parity = UART_PARITY_EVEN;  huart3.Init.Mode = UART_MODE_TX_RX;  huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;  huart3.Init.OverSampling = UART_OVERSAMPLING_16;  if (HAL_UART_Init(&huart3) != HAL_OK)  {    Error_Handler();  }  /* USER CODE BEGIN USART3_Init 2 */
  /* USER CODE END USART3_Init 2 */
}

 

posted @ 2020-07-03 09:22  纯洁de小学生  阅读(1094)  评论(0)  编辑  收藏  举报