Hi,
I have installed Linux in the RiotBoard.
i would like use UART's in Expansion Port (UART3, UART4 and UART5)
I have found :
- UART3 on / dev/ttymxc2
- Debug port on /dev/ttymxc1
I don't know where is connected /dev/ttymxc0 and search others Serial port : UART4 & 5
Hello,
I try to read/write to the UART3 on /dev/ttymxc2, but I dont get any signals on the expansion port (Pin 26 & 28).
I use a C library and I also try it in the console:
stty -F /dev/ttymxc2 cs8 -cstopb 115200
echo Hello world > /dev/ttymxc2
-> There is no error, just nothing seems to happen 
If I do the same on /dev/ttymxc1 (debug port), transmit works fine (with C-Librarry and console commands).
I can not receive data on /dev/ttymxc1, but I think this is OK because the console parses the rx data.
So why is /dev/ttymxc2 not working?
-> Do I have to do some additional configuration to use UART3?
Thanks,
Oliver
Hello,
I try to read/write to the UART3 on /dev/ttymxc2, but I dont get any signals on the expansion port (Pin 26 & 28).
I use a C library and I also try it in the console:
stty -F /dev/ttymxc2 cs8 -cstopb 115200
echo Hello world > /dev/ttymxc2
-> There is no error, just nothing seems to happen
If I do the same on /dev/ttymxc1 (debug port), transmit works fine (with C-Librarry and console commands).
I can not receive data on /dev/ttymxc1, but I think this is OK because the console parses the rx data.
So why is /dev/ttymxc2 not working?
-> Do I have to do some additional configuration to use UART3?
Thanks,
Oliver
