Posted By davek on 16 Jul 2007 5:25 PM
Has anyone been able to use UARTB (/dev/ttymxc1) successfully under linux?
Here''s what I''ve been able to use:
- UART A - works
- UART B - doesn''t work
- UART C - works
- UART D - overlaps with IDE pins - disabled
- UART E - seems to be USB Host Pins
More specifically, the UART B pins on the expansion board seem to be at the wrong logic levels. The TX pin should sit high, and it seems to be always low. Any suggestions? Thanks
in the board-mx31lite.h UARTB is defined as an irda port. You should try editing that header with what u need.
In another note, have u been able to use RTS/CTS/DSR etc pins in any of the uarts?
regards