Question

我有一个定制设计的电路板，带有STM32L071和EnOcean TCM515。使用USART1我能够传输数据包（ESP3协议）以获取TCM515模块的版本号。 HAL_UART_Transmit(&huart1, (uint8_t*)enocean_ver, sizeof(enocean_ver), HAL_MAX_DELAY); 使用逻辑分析仪我可以看到来自TCM515模块的发送和响应数据包，还探测了通信信道的引脚，我可以看到发送和接收的数据包。但是使用HAL_UART_Receive(&huart1, (uint8_t*)buf, sizeof(buf), HAL_MAX_DELAY);数据并没有存储到缓冲区中，我相信它是一个软件问题，我错过了什么？

uint8_t enocean_ver[]={0x55, 0x00, 0x01, 0x00, 0x05, 0x70, 0x03, 0x09};

 UART_HandleTypeDef huart1;

  int main(void) {

  HAL_Init();
  SystemClock_Config();
  MX_GPIO_Init();
  MX_USART1_UART_Init();
  HAL_UART_GetState(&huart1);
  char buf[40];
  memset(buf, 0, sizeof(buf));
  HAL_UART_Transmit(&huart1, (uint8_t*)enocean_ver, sizeof(enocean_ver), HAL_MAX_DELAY);
  HAL_UART_Receive(&huart1, (uint8_t*)buf,  sizeof(buf), HAL_MAX_DELAY);
 while(1);
}

static void MX_USART1_UART_Init(void)
 {

  huart1.Instance = USART1;
  huart1.Init.BaudRate = 57600;
  huart1.Init.WordLength = UART_WORDLENGTH_8B;
  huart1.Init.StopBits = UART_STOPBITS_1;
  huart1.Init.Parity = UART_PARITY_NONE;
  huart1.Init.Mode = UART_MODE_TX_RX;
  huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  HAL_UART_Init(&huart1);

 }

void HAL_UART_MspInit(UART_HandleTypeDef* huart)
 {
         __HAL_RCC_GPIOB_CLK_ENABLE();
         __HAL_RCC_USART1_CLK_ENABLE();
         if(huart->Instance==USART1){
     /*USART1 GPIO Configuration
     PB6     ------> USART1_TX
     PB7     ------> USART1_RX*/

     GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
     GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
     GPIO_InitStruct.Pull = GPIO_NOPULL;
     GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
     GPIO_InitStruct.Alternate = GPIO_AF0_USART1;
     HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}
         }

 void MX_GPIO_Init() {
 GPIO_InitTypeDef GPIO_InitStruct;

     /* GPIO Ports Clock Enable */

     __HAL_RCC_GPIOB_CLK_ENABLE();
}

无法使用HAL_UART_Receive将数据接收到缓冲区stm32l0中

0 个答案: