sendng bytes to a serial port need help

This is a discussion on sendng bytes to a serial port need help within the C++ Programming forums, part of the General Programming Boards category; i think i have managed to open the serial port but i need to write a 3 byte protocol to ...

  1. #1
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    sendng bytes to a serial port need help

    i think i have managed to open the serial port but i need to write a 3 byte protocol to it with the first byte containing 255 the second 1 and the third 127.
    how would i go about doing this iam using a windows OS and using embedded C++
    hope u can help thanx

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    unsigned char buff[] = { 255, 1, 127 };
    serial_port_write_api_function ( device_handle, buff, 3 );

    serial_port_write_api_function is whatever your operating system has for writing a number of bytes to a device (specified by device handle)

    > how would i go about doing this iam using a windows OS and using embedded C++
    embedded C++? So does the code run under windows, or are you just using windows for development, and running the code elsewhere?
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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