怎么提供串口大师给STM32F302-NUCLEO发送指令

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wgydzy091 提问时间：2016-9-8 16:42 /

在使用ST官网的例程X-CUBE-SPN7的UART_UI文件时，发现不知道该怎么通过串口大师来发正确的指令。

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判断条件里有个Get_UART_Data() == 266 ，这个Get_UART_Data()只是返回 (UART.Instance->RDR);
这个266不知道怎么来的。有没有哪位高人指导一下？

void UART_Set_Value()
{
if(Get_UART_Data() == 266 && (huart2.State != HAL_UART_STATE_BUSY_TX && huart2.State != HAL_UART_STATE_BUSY_TX_RX))
  {
if(Uart_cmd_flag == 0)
{
   CMD_Parser((char*)aRxBuffer);
}
else
{
SIXSTEP_parameters.Uart_value_to_set = UART_num_decode();

switch(SIXSTEP_parameters.Uart_cmd_to_set)
{
   case SETSPD_CMD:  /*!<  Set the new speed value command received */
      PI_parameters.Reference = SIXSTEP_parameters.Uart_value_to_set;
      SIXSTEP_parameters.Ramp_Start = 1;
      BUFF_RCV = RXBUFFERSIZE;
      Uart_cmd_flag = 0;
      HAL_UART_Transmit(&huart2, (uint8_t *)rowLxBuffer, (COUNTOF(rowLxBuffer) - 1),500);
      UART_FLAG_RECEIVE = TRUE;
      huart2.State = HAL_UART_STATE_READY;
      break;
   case INIREF_CMD:  /*!<  Set the new STARUP_CURRENT_REFERENCE value command received */
      SIXSTEP_parameters.Ireference = SIXSTEP_parameters.Uart_value_to_set;
      BUFF_RCV = RXBUFFERSIZE;
      Uart_cmd_flag = 0;
      huart2.State = HAL_UART_STATE_READY;
      HAL_UART_Transmit(&huart2, (uint8_t *)rowLxBuffer, (COUNTOF(rowLxBuffer) - 1),500);
      UART_FLAG_RECEIVE = TRUE;
   break;
   case POLESP_CMD:  /*!<  Set the Pole Pairs value command received */
      SIXSTEP_parameters.NUMPOLESPAIRS = SIXSTEP_parameters.Uart_value_to_set;
      BUFF_RCV = RXBUFFERSIZE;
      Uart_cmd_flag = 0;
      huart2.State = HAL_UART_STATE_READY;
      HAL_UART_Transmit(&huart2, (uint8_t *)rowLxBuffer, (COUNTOF(rowLxBuffer) - 1),500);
      UART_FLAG_RECEIVE = TRUE;
   break;
   case ACCELE_CMD:  /*!<  Set the Accelleration for Start-up of the motor command received */
      SIXSTEP_parameters.ACCEL = SIXSTEP_parameters.Uart_value_to_set;
      BUFF_RCV = RXBUFFERSIZE;
      Uart_cmd_flag = 0;
      huart2.State = HAL_UART_STATE_READY;
      HAL_UART_Transmit(&huart2, (uint8_t *)rowLxBuffer, (COUNTOF(rowLxBuffer) - 1),500);
      UART_FLAG_RECEIVE = TRUE;
   break;
   case DIRECT_CMD:  /*!<  Set the motor direction */
      SIXSTEP_parameters.CW_CCW = SIXSTEP_parameters.Uart_value_to_set;
      MC_Set_PI_param(&

I_parameters);
      BUFF_RCV = RXBUFFERSIZE;
      Uart_cmd_flag = 0;
      huart2.State = HAL_UART_STATE_READY;
      HAL_UART_Transmit(&huart2, (uint8_t *)rowLxBuffer, (COUNTOF(rowLxBuffer) - 1),500);
      UART_FLAG_RECEIVE = TRUE;
   break;
   case KP_PRM_CMD:  /*!<  Set the KP PI param command received */
      PI_parameters.Kp_Gain = SIXSTEP_parameters.Uart_value_to_set;
      BUFF_RCV = RXBUFFERSIZE;
      Uart_cmd_flag = 0;
      huart2.State = HAL_UART_STATE_READY;
      HAL_UART_Transmit(&huart2, (uint8_t *)rowLxBuffer, (COUNTOF(rowLxBuffer) - 1),500);
      UART_FLAG_RECEIVE = TRUE;
   break;
   case KI_PRM_CMD:  /*!<  Set the KI PI param command received */
      PI_parameters.Ki_Gain = SIXSTEP_parameters.Uart_value_to_set;
      BUFF_RCV = RXBUFFERSIZE;
      Uart_cmd_flag = 0;
      huart2.State = HAL_UART_STATE_READY;
      HAL_UART_Transmit(&huart2, (uint8_t *)rowLxBuffer, (COUNTOF(rowLxBuffer) - 1),500);
      UART_FLAG_RECEIVE = TRUE;
   break;
   case POTENZ_CMD:  /*!<  Enable Potentiometer command received */
      BUFF_RCV = RXBUFFERSIZE;
      Uart_cmd_flag = 0;
      huart2.State = HAL_UART_STATE_READY;
      HAL_UART_Transmit(&huart2, (uint8_t *)rowLxBuffer, (COUNTOF(rowLxBuffer) - 1),500);
      UART_FLAG_RECEIVE = TRUE;
      SIXSTEP_parameters.Potentiometer = SIXSTEP_parameters.Uart_value_to_set;
   break;
   }  /* switch case */
}  /* else */
  }  /* if */