I am trying to get CDC/ACM working on my custom board so I can have a
USB console. I have finally worked out the arcane set of CONFIG options
needed, found the to-be-expected bugs/inconstencies with some of the
SAMA5 code, that I have worked around for now (most are covered by
disabling debug assertions for now)...and...finally get an NSH prompt on
a Minicom terminal.
Yay!
But data transmission TO the board from Minicom is behaving very strangely.
If I want to send '?' - to see what built-in apps I have, I need to type
the '?' four times followed by 4 ENTERs, then I get the expected
response. Eh?
Tried Minicom on Windows/WSL or Ubuntu, and PuTTY. Minicom has been my
console of choice, via serial, for ages.
This seems very odd - it's 100% OK to the PC but 100% not OK from PC to
board.
In case it's related...SYSLOG to the original /dev/ttyS1 no longer
works, and playing with SYSLOG configuration, seems to interfere with
the CDC/ACM usb functionality as well by stopping it working if I dare
to try to log to /dev/console!
Anyone got any suggestions before I scream even louder!!!???
