Re: [Gumstix-users] verdex to robostix i2c-load errors (111/112)

[Steve M. <smc...@sp...>]

The Verdex (the board says PF270-R1848) is 400MHz and the wifi was not installed (Thanks for the tip on the power mod).

And yes, I did:
  modprobe -r i2c-dev
  modprobe -r i2c-pxa

Like I said, I've tried this different combinations of motherboards and robostixes(R1131).  Still the same thing.

On a side note...I get around 1Kb/s transfers when loading the robostix with uisp.  Can I expect faster speeds with i2c-load?


-----Original Message-----
From: Dave Hylands [mailto:dhy...@gm...]
Sent: Wednesday, October 08, 2008 2:59 PM
To: General mailing list for gumstix users.
Subject: Re: [Gumstix-users] verdex to robostix i2c-load errors (111/112)

Hi Steve,

> What's funny is it starts transferring (see the '###' before 'ERROR') then
> fails.  It usually stops immediately but one time I was actually able to
> load a whole program.

Yes - that is strange. It means that i2c is working for a bit and then
stops working. I've never seen this behavior before.

Your fuse settings look good.

What speed verdex are you using?
Is the wifi module plugged in?

If so, then you need to have done the mod described here:
<http://pubs.gumstix.com/documents/robostix_power.pdf>
or the wifi module will cause the voltage regulators to cutout.

> I have also run i2c-test and it fails.  The SDA line seems to track but the
> SCL does not.  The thing that really bothers me is that I bought 2 robostix
> wifi packs and I've done this on both and it is the same...

When you run i2c-test you need to make sure that the i2c modules
(i2c-dev.ko and i2c-pxa.ko) are NOT loaded.

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

-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
gumstix-users mailing list
gum...@li...
https://lists.sourceforge.net/lists/listinfo/gumstix-users


This e-mail transmission and the information contained in this communication is confidential and may be legally privileged, proprietary information intended for the individual or entity to whom it is addressed.  If you have received it in error, you are on notice of its status. The unauthorized use, distribution or disclosure of this communication is strictly prohibited.  Please notify us immediately by reply e-mail and then delete this message from your system.  Thank you for your cooperation.