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Last Post 06 Nov 2013 04:57 PM by  steven.eckhoff
Difference between ttyOs
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steven.eckhoff
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06 Nov 2013 04:00 PM
    Hi, 

    I try to use ttyO1, but it seems not to work. 
    Anyway, I've made the same on ttyO2 and it works (echo "a" > /dev/ttyO1 or ttyO2"). 

    Is there any differences between the 2 tty ?
    steven.eckhoff
    Basic Member
    Basic Member
    Posts:192


    --
    06 Nov 2013 04:57 PM
    There is nothing special in their differences other than they have this mapping

    UARTA → ttyO0
    UARTB → ttyO2
    UARTC → ttyO1

    Also, UARTA, ttyO0, is used for the console.

    If you are having trouble sending characters through the UARTS you may need to do the following

    DM-37x# stty -F /dev/ttyO1 115200
    DM-37x# stty -F /dev/ttyO2 115200

    The UARTS are setup in the following order A -> B -> C.
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