[Soekris] net5501 and GPIO

[Soren Kristensen]

Hi Ralph & List

Ralph Becker-Szendy wrote:
>> Hi all on the list,
>>
>> Since I just got my first net5501-60 (I've installed smootly, a
>> quite minimal Fedora8 on a 8GB CF) I would like to be pointed out to
>> an userspace example of GPIO usage. Does anyone can give me an URL
>> or an example to start from?
> 
> Warning: If I remember right, the pinout of the GPIO connector on the
> net5501 is different from what is described in the net4801 manual.  By
> this I mean the following: Power, ground and serial pins are still
> where they used to be, and IO pins are where IO pins used to be.  But
> the numbering of IO pins has changed.  The easiest way to figure this
> out is to put a LED on each IO pin, and then write a little program
> that wiggles all of the IO pins one at a time until the LED starts
> blinking.  I did this using OpenBSD, where this is trivial, because
> it has a command-line tool for this: gpioctl.

No, the GPIO connector on the net4801 and net5501 are exactly the same, 
in fact, I did cut and paste of the schematics....

> By the way, Soren: It would be nice if there were documentation for
> the net5501.

I know, working it.


Best Regards,


Soren Kristensen

CEO & Chief Engineer
Soekris Engineering, Inc.