2008-11-13 09:52:56 BF548 EZKIT - 2nd UART for debugging
AC CHAO (UNITED STATES)
Message: 65241
Hello,
I can use Ethernet connection to do debug. I want to try debugging via UART.
But I can't find 2nd UART in /dev folder on the target.
Could you advise how to add the 2nd UART device?
Thank you.
Best regards,
AC
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2008-11-13 10:21:33 Re: BF548 EZKIT - 2nd UART for debugging
Kyle Schlansker (UNITED STATES)
Message: 65244
There are two UARTS that I think you have direct access to on the ezkit -- UART1 and UART3. Make sure you have CONFIG_SERIAL_BFIN_UART1=y and CONFIG_SERIAL_BFIN_UART3=y in your kernel .config.
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2008-11-14 10:57:30 Re: BF548 EZKIT - 2nd UART for debugging
AC CHAO (UNITED STATES)
Message: 65306
Kyle,
Thanks a lot for your direction. Now I can see ttyBF1 under /dev directory.
But when I run gdbserver, I saw the following messages repeatedly
root:/> ls /dev/ttyBF*
/dev/ttyBF0 /dev/ttyBF1
root:/> gdbserver /dev/ttyBF1 /bin/hello
Process /bin/hello created; pid=273
Remote debugging using /dev/ttyBF1
readchar: Socket operation on non-socket
Remote side has terminated connection. BGDserver will reopen the connection.
Remote debugging using /dev/ttyBF1
readchar: Socket operation on non-socket
Remote side has terminated connection. BGDserver will reopen the connection
........
Does someone know why?
Thank you.
Regards,
AC
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2008-11-14 13:06:34 Re: BF548 EZKIT - 2nd UART for debugging
Mike Frysinger (UNITED STATES)
Message: 65313
gdbserver over serial is currently broken. use ethernet.
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2008-11-14 13:12:17 Re: BF548 EZKIT - 2nd UART for debugging
AC CHAO (UNITED STATES)
Message: 65315
Hi Mike,
Thanks a lot for your informing.
Best regards,
AC