Re: [Gumstix-users] Gumstix verdex serial communications problems

[Bill C. <bc...@dt...>]

I'm using revision 1851 of the console-vx board, but even when I remove
it from the system and connect to pins on the gumstix I still can't
communicate over ttyS1 (but I can on the others).

Does anyone know how to configure ttyS1 for serial communications?


-----Original Message-----
From: Dave Hylands [mailto:dhy...@gm...] 
Sent: Wednesday, April 22, 2009 1:12 PM
To: General mailing list for gumstix users.
Subject: Re: [Gumstix-users] Gumstix verdex serial communications
problems

Hi Bill,

> I installed minicom to troubleshoot the ports with a loopback adapter
and
> found that I'm getting no communication at all on /dev/ttyS1, even
though
> the other ports are working fine.  Is there something I need to
configure in
> hardware to use this port?  Is some other device using that port by
> default?  The only hardware I have currently plugged in are the verdex
pro
> XL6P and the console-vx.

ttyS1 is BTUART

Early versions of the console-vx didn't have power and ground hooked
up to the BTUART voltage converter chip (mine was revision 1414). I'm
not sure which revision of the board this was fixed in, but that might
be the problem.

See this thread:
<http://article.gmane.org/gmane.linux.distributions.gumstix.general/2686
7>

which includes a photo of how I patched my board.

-- 
Dave Hylands
Shuswap, BC, Canada
http://www.DaveHylands.com/

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