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How is the strategy to test UART ( auto test, if error show on led )

Discussion in 'Electronic Basics' started by Boki, May 5, 2005.

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  1. Boki

    Boki Guest

    Hi All,
    Simple question for you. : )

    I am going to test a UART, I have a embedded CPU, so I can
    control it.

    but the clinet still sleeping at that time I testing UART.

    Server <=== UART ====> Clinet

    Do I have to make sure clinet OK first ?

    Does Only send and receive data can make sure UART OK?

    Thank you very much for your help.
    Best regards,
  2. Boki wrote...
    Simple answer for you, Boki. : )

    Add switchable loopback
  3. John Smith

    John Smith Guest

    I think you need to define what you mean by 'test'. It may be possible to
    put the UART into a loopback mode, in which case you will test

    However it doesn't test anything beyond the UART (e.g. level translators,
    cables etc.)

    You could also test for the state of (I'm going to get this wrong) DTS,CTS
    lines but only if you know the status expected.

    Can't think of anything else
  4. Boki

    Boki Guest

    Got the ideal, I will try. Thanks!

    Best regards,
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