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Parity and CRC

  1. Oct 5, 2009 #1
    Hi!

    Recently I am studying on parity and CRC(cyclic redundancy checks) this two error checking methods.

    The problem is can this both methods combine to use together during transmission data?

    Let say I need to transfer ASCII code and I do CRC first,then before sending data I do parity on the data formed after CRC to make it 8 bits.

    Is this method correct or not?Can someone guide me how to build a error checking by using this two methods together?

    Thanks!
     
  2. jcsd
  3. Oct 5, 2009 #2

    mgb_phys

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    Yes it's common to combine them.
    Once you have calculated the checksum (CRC) it goes on the end of the data like any data - the parity bit is then applied to each byte in the data stream
     
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