Difference between ttyOs - Beacon EmbeddedWorks

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Last Post 06 Nov 2013 04:57 PM by steven.eckhoff

Difference between ttyOs

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steven.eckhoff

Basic Member
Posts:192

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
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.