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Jarhead
Jarhead
Last Activity: Feb 1 '10, 06:36 PM
Joined: Jan 30 '10
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  • Jarhead
    replied to Hex checksum
    in C Sharp
    Almost...
    It's just not returning the correct checksum.

    If you try this:

    Code:
    byte[] byteArray = { 0xF0, 0x00, 0x7D, 0x00, 0x00, 0x00, 0x70, 0x05, 0x02, 0x01, 0x00, 0x02, 0x01, 0x00, 0x3B, 0x00, 0x70, 0x00, 0x00, 0x00, 0x01 };
    And change the byte count to 21, it should return 29 but it returns 41?
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    • Jarhead
      replied to Hex checksum
      in C Sharp
      Anyone else have any ideas, or preferably, some examples?
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      • Jarhead
        started a topic Hex checksum
        in C Sharp

        Hex checksum

        Hey all,
        I'm completely new to programming of any kind and I decided to try and write a driver for a XM tuner.
        I'm trying to figure out how to send a hex array which has 4 bytes that will change with each command. The 4 bytes will be tuner number (appears twice), the actual event wanting to happen, and the checksum.
        To start I want to just figure out how to calculate the checksum and take it from there.
        This is the formula:...
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