stm32 hal中断收发

typedef __packed struct _Stm32Packet 
{
	uint32_t		count;         //结构总长度
	int8_t		kind;	       //message kind
	uint8_t		rxd[5];	       //message index
	uint8_t		txd[256];	       //message index
 
        int16_t	      checksum;      //校验位
} Uart_Packet;

void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
  if (huart->Instance == USART1) // ???????????? USART1
  {
 
	 Uart1_RX.rxd[Uart1_RX.count++] =uart_buf[0];
   
  }
}


void USART1_IRQHandler(void)
{
  /* USER CODE BEGIN USART1_IRQn 0 */

  /* USER CODE END USART1_IRQn 0 */
  HAL_UART_IRQHandler(&huart1);
	HAL_UART_Receive_IT(&huart1,  (uint8_t*)uart_buf, 1);
  /* USER CODE BEGIN USART1_IRQn 1 */

  /* USER CODE END USART1_IRQn 1 */
}

	  if(Uart1_RX.count==5)  //Uart1_RX.count
	  {
	   HAL_UART_Transmit_IT(&huart1, (uint8_t*)Uart1_RX.rxd, strlen((uint8_t*)Uart1_RX.rxd)); 
		  Uart1_RX.count=0;
//		  memset
	  }