[Gumstix-users] Gumstix serial via robostix

[Steve B. <ste...@gm...>]

Hi there,  might be a newbie question (had my gum&robostix for a week
or so), but am I right in thinking the gumstix serial out that I
connect to via the tweener and terminal is forwarded to the PXA ST
ports on the robostix?

I'd like to connect gumstix & robostix without a tweener, but still be
able to terminal to the gumstix.  I guess I need to connect PXA ST Tx,
Rx and Gnd (1, 5 & 7 on the UARTS header) to pins to 2, 3 and 5 on a
DB-9 serial connector, probably via a level shifter to serial voltage?
 Problem is, I'm not getting anything out of pin 5 (Tx?) on connecting
the power.

Things I'd like to check:
Am I connecting to the right pins?
Will the gumstix boot ok when connected directly to the robostix?
(Hard to tell even if it's powered up - could do with an LED on the
gumstix board...)
Anything else I need to do?

Eventual plan is to have GPS+other sensors in, servos out and get the
'stix airborne and flying itself...  I'm doing an undergrad project at
Bristol uni in the UK.

Thanks for any help at all :)
Steve
--=20
Steve Bullock
* ste...@gm...
* 07977 216406