serial port weird chars ...
antonynpavlov at gmail.com
Fri Aug 7 09:41:04 PDT 2015
On Fri, 07 Aug 2015 10:41:12 -0400
Roberto Alejandro Espi Munoz <raespi at icid.cu> wrote:
> Hi ... I'm currently having some trouble with displaying characters
> correctly in my terminal. I'm using a board equivalent to the
> mini2440. This one has a NOR and a NAND. I connect to it over a serial
> port interface. When I boot up the board in debug mode I'm able to see
> clearly the messages displayed by the S3C2440A USB Downloader which is
> copied in the NOR interface, I then download my barebox binary over the
> USB interface and when it boots I get a lot of weird characters on
> screen. The console seems to respond correctly, I issue for example the
> "reset" command and it resets but I can't make out what is displayed.
> I was guessing at first a serial port configuration problem on my
> operating system (I use Linux), tried it over on Windows and same
> effect, the first bootloader works great and barebox when starting just
> mangles the characters.
> The other weird problem is than when I use a USB-Serial converter to
> connect to the board's serial port everything works !
> I'm currently using barebox 2012.09 and OpenSuse Linux 13.2
> Any ideas ? thanks
You have the problem if you use your host computer motherboard serial port (no matter, Linux or Windows),
And no problem if you use USB-Serial dongle. So it looks like host serial port problem.
Could you try to connect the board to another host computer?
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