1350 Baud with CE.

Does anyone know how to create 1350 baud using CE 5.0 or CE 4.2?
Richard Linsley-Hood
The DCB for a serial port

The DCB for a serial port supports (as standard) the below

BaudRate


Specifies the baud rate at which the communication device operates.

It is an actual baud rate value, or one of the following baud rate indexes:


...

  • CBR_1200
  • CBR_2400
  • ...

    Thus the code below (from the MSDN)

    DCB PortDCB;

    // Initialize the DCBlength member.
    PortDCB.DCBlength = sizeof (DCB);

    // Get the default port setting information.
    GetCommState (hPort, &PortDCB);

    // Change the DCB structure settings.
    PortDCB.BaudRate = 9600;              // Current baud
    PortDCB.fBinary = TRUE;               // Binary mode; no EOF check
    PortDCB.fParity = TRUE;               // Enable parity checking
    PortDCB.fOutxCtsFlow = FALSE;         // No CTS output flow control
    PortDCB.fOutxDsrFlow = FALSE;         // No DSR output flow control
    PortDCB.fDtrControl = DTR_CONTROL_ENABLE;
                                          // DTR flow control type
    PortDCB.fDsrSensitivity = FALSE;      // DSR sensitivity
    PortDCB.fTXContinueOnXoff = TRUE;     // XOFF continues Tx
    PortDCB.fOutX = FALSE;                // No XON/XOFF out flow control
    PortDCB.fInX = FALSE;                 // No XON/XOFF in flow control
    PortDCB.fErrorChar = FALSE;           // Disable error replacement
    PortDCB.fNull = FALSE;                // Disable null stripping
    PortDCB.fRtsControl = RTS_CONTROL_ENABLE;
                                          // RTS flow control
    PortDCB.fAbortOnError = FALSE;        // Do not abort reads/writes on
                                          // error
    PortDCB.ByteSize = 8;                 // Number of bits/byte, 4-8
    PortDCB.Parity = NOPARITY;            // 0-4=no,odd,even,mark,space
    PortDCB.StopBits = ONESTOPBIT;        // 0,1,2 = 1, 1.5, 2

    // Configure the port according to the specifications of the DCB
    // structure.
    if (!SetCommState (hPort, &PortDCB))
    {
      // Could not configure the serial port.
      dwError = GetLastError ();
      MessageBox (hMainWnd, TEXT("Unable to configure the serial port"),
                  TEXT("Error"), MB_OK);
      return FALSE;
    }

    In theory then you should be able to replace

    PortDCB.BaudRate = 9600;              // Current baud

    with

    PortDCB.BaudRate = 1350;              // Current baud

    and it may work. It all depends if the clock rate divider will actually produce that baud rate output.

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    Donald Schaefer
    Hi,   Sorry, but the UART

    Hi,

      Sorry, but the UART will not support this Baudrate.

    Don Schaefer

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