CC2564: SPP Demo Client mode传输问题

#define TEST_DATA              "This is a test string."  /* Denotes the data  */
                                                         /* that is sent via  */
                                                         /* SPP when calling  */
                                                         /* SPP_Data_Write(). */

/* The following function is responsible for Writing Data to an Open */
   /* SPP Port.  The string that is written is defined by the constant  */
   /* TEST_DATA (at the top of this file).  This function requires that */
   /* a valid Bluetooth Stack ID and Serial Port ID exist before        */
   /* running.  This function returns zero is successful or a negative  */
   /* return value if there was an error.                               */
static int Write(ParameterList_t *TempParam)
{
   int  ret_val;
   int  Result;

   /* First check to see if the parameters required for the execution of*/
   /* this function appear to be semi-valid.                            */
   if((BluetoothStackID) && (SerialPortID))
   {
      /* Simply write out the default string value.                     */
      Result = SPP_Data_Write(BluetoothStackID, SerialPortID, (Word_t)BTPS_StringLength(TEST_DATA), (Byte_t *)TEST_DATA);

      /* Next, check the return value to see if the command was issued  */
      /* successfully.                                                  */
      if(Result >= 0)
      {
         /* The Data was written successfully, Result indicates the     */
         /* number of bytes successfully written.                       */
         Display(("Wrote: %d.\r\n", Result));

         /* Flag success to the caller.                                 */
         ret_val = 0;
      }
      else
      {
         /* There was an error writing the Data to the SPP Port.        */
         Display(("Failed: %d.\r\n", Result));

         /* Flag that an error occurred while submitting the command.   */
         ret_val = FUNCTION_ERROR;
      }
   }
   else
   {
      /* One or more of the necessary parameters are invalid.           */
      ret_val = INVALID_PARAMETERS_ERROR;
   }

   return(ret_val);
}