示例#1
1
文件: usart.c 项目: issta/t-control
void MX_USART1_UART_Init(void)
{

  huart1.Instance = USART1;
  huart1.Init.BaudRate = 38400;
  huart1.Init.WordLength = UART_WORDLENGTH_7B;
  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;
  huart1.Init.OverSampling = UART_OVERSAMPLING_16;
  huart1.Init.OneBitSampling = UART_ONEBIT_SAMPLING_DISABLED ;
  huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  HAL_RS485Ex_Init(&huart1, UART_DE_POLARITY_HIGH, 0, 0);

}
示例#2
0
/**
  * @brief  CDC_Control_FS
  *         Manage the CDC class requests
  * @param  cmd: Command code            
  * @param  pbuf: Buffer containing command data (request parameters)
  * @param  length: Number of data to be sent (in bytes)
  * @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
  */
static int8_t CDC_Control_FS  (uint8_t cmd, uint8_t* pbuf, uint16_t length)
{ 
  /* USER CODE BEGIN 5 */
  switch (cmd)
  {
  case CDC_SEND_ENCAPSULATED_COMMAND:
 
    break;

  case CDC_GET_ENCAPSULATED_RESPONSE:
 
    break;

  case CDC_SET_COMM_FEATURE:
 
    break;

  case CDC_GET_COMM_FEATURE:

    break;

  case CDC_CLEAR_COMM_FEATURE:

    break;

  /*******************************************************************************/
  /* Line Coding Structure                                                       */
  /*-----------------------------------------------------------------------------*/
  /* Offset | Field       | Size | Value  | Description                          */
  /* 0      | dwDTERate   |   4  | Number |Data terminal rate, in bits per second*/
  /* 4      | bCharFormat |   1  | Number | Stop bits                            */
  /*                                        0 - 1 Stop bit                       */
  /*                                        1 - 1.5 Stop bits                    */
  /*                                        2 - 2 Stop bits                      */
  /* 5      | bParityType |  1   | Number | Parity                               */
  /*                                        0 - None                             */
  /*                                        1 - Odd                              */ 
  /*                                        2 - Even                             */
  /*                                        3 - Mark                             */
  /*                                        4 - Space                            */
  /* 6      | bDataBits  |   1   | Number Data bits (5, 6, 7, 8 or 16).          */
  /*******************************************************************************/
  case CDC_SET_LINE_CODING:   
	    linecoding.bitrate = (uint32_t)(pbuf[0] | (pbuf[1] << 8) | (pbuf[2] << 16) | (pbuf[3] << 24));
			linecoding.format = pbuf[4];
			linecoding.paritytype = pbuf[5];
			linecoding.datatype = pbuf[6];
	    huart2.Init.BaudRate = linecoding.bitrate;
		  switch (linecoding.format)
			{
				case 0 : huart2.Init.StopBits = UART_STOPBITS_1; break;
				case 1 : huart2.Init.StopBits = UART_STOPBITS_1_5; break;
				case 2 : huart2.Init.StopBits = UART_STOPBITS_2; break;
			}
		  switch (linecoding.paritytype)
			{
				case 0 : huart2.Init.Parity = UART_PARITY_NONE; break;
				case 1 : huart2.Init.Parity = UART_PARITY_ODD; break;
				case 2 : huart2.Init.Parity = UART_PARITY_EVEN; break;
			}
			//UART_WORDLENGTH_7B
		  switch (linecoding.datatype)
			{
				case 7 : huart2.Init.WordLength = UART_WORDLENGTH_7B; break;
				case 8 : huart2.Init.WordLength = UART_WORDLENGTH_8B; break;
			}
			HAL_RS485Ex_Init(&huart2, UART_DE_POLARITY_HIGH, 0, 0);
			
    break;

  case CDC_GET_LINE_CODING:     
			pbuf[0] = (uint8_t)(linecoding.bitrate);
				pbuf[1] = (uint8_t)(linecoding.bitrate >> 8);
				pbuf[2] = (uint8_t)(linecoding.bitrate >> 16);
				pbuf[3] = (uint8_t)(linecoding.bitrate >> 24);
				pbuf[4] = linecoding.format;
				pbuf[5] = linecoding.paritytype;
				pbuf[6] = linecoding.datatype;

    break;

  case CDC_SET_CONTROL_LINE_STATE:

    break;

  case CDC_SEND_BREAK:
 
    break;    
    
  default:
    break;
  }

  return (USBD_OK);
  /* USER CODE END 5 */
}