Re: [Gumstix-users] i2c-io and the blue LED

[Brian G. <bgr...@g-...>]

I bet that it what happened, I think I loaded one on the prebuilt hex files
a while back and never replaced it. My mistake. I'll try loading one built
from source. 

BTW, I'm currently working on code to bit-bang the interface to the parallax
HM55B compass. It turns out I'd have to anyway considering it uses 4-bit
commands and a 2 11bit responses, from what I understand SPI requires 8-bit
groups. When I get it working I'll post it on here or the wiki.



 
Brian Gregory
 

-----Original Message-----
From: gum...@li...
[mailto:gum...@li...] On Behalf Of Dave
Hylands
Sent: Thursday, May 31, 2007 4:07 PM
To: General mailing list for gumstix users.
Subject: Re: [Gumstix-users] i2c-io and the blue LED

Hi Brian,

On 5/31/07, Brian Gregory <bgr...@g-...> wrote:
> I've noticed that whenever I send an i2c-io command to my robostix the
blue
> LED toggles. The strange thing is that I can't find where this happens in
> either the i2c-io code or the i2c-Bootloader code. The only place that I
can
> find it is in Config-LED.h where it is commented out.

So, as long as CFG_I2C_LED_PORT and CFG_I2C_LED_MASK are defined when
the i2c-slave.c was built for the bootloader, then that's what causes
the blue LED to flash.

Did you build and program your own bootloader? Or use one of the prebuilt
ones?

I know I went back and forth on whether to use it, and its possible
that one of the precompiled bootloaders had the option set even though
the checked in source code doesn't.

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

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