[Gumstix-users] More details needed about robostix/gumstix connection

[Dima D. <dim...@gm...>]

Dear list,

Excuse my lack of proper hardware understanding, but how do I find the
'gumstix connector' mentioned in
http://www.gumstix.org/tikiwiki/tiki-index.php?page=3D%20Robostix and on
mailing list posts? I fail to see where to physically add the 10k
resistor between pins 3 and 4, in order to enable a robostix/gumstix
combo to boot without a console cable plugged in. (An image on the
wiki would also help other dummies like me :-)

I also read that I need to set some GPIO lines to enable I/O between
the ATmega128 UART on robostix and the STUART port on gumstix
(/dev/ttyS2). Is there a reference/schematics I can turn to get a
better idea of what other GPIOs are avaiable and *why* this is needed?

echo "AF2 in"  > /proc/gpio/GPIO46
echo "AF1 out" > /proc/gpio/GPIO47

Finally, I am having trouble the example programs for robostix...
Unfortunately, I bought an AVR-PG1B cable and am forced to use
PonyProg (or I don't know how to do it with uisp, yet). Nevertheless,
I manage to successfully write the programs to the ATmega128 (and read
them back), but the leds on the robostix won't come up. Anything I
might be doing wrongly?

Thanks a million, in advance.
--
/dima