Easy Gp2x Serial Cable

[nubie]

ok... i'll try this

the shop has a page: www.niedermeyer.at but it's german only, i think

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Just a small hijack, on that site the girl is much better than the one on gp2x.com

 

[jokeman]

hm... thanks for your help, nubie...

i tried to connect a battery pack (2xAAA => ~2.6V)
connected [-] to black (12) and [+] to white (22)

then i connected the PC side

then i tested with the DC meter: [-] battery pack and
blue (13): ~2.56V
red (24): ~2.56V
yellow (23): ~2.56V
the rest of the pins very small voltage

when i activate hyperterminal, i only get ~2.56V on blue and very small voltage on the other pins

i also got
green (14): ~0.35V
orange (20): ~0.35V
once, but i can't reproduce it :huh:

 

[jokeman]

well...
i simply connected the black, green, white and blue wires to the right pins and it worked

THX for your help

 

[jokeman]

hi!
old topic, new questions

my serial cable (in fact, it is a full BOB) is working for quite some time...
but i don't like the case, i've made for it and i want to work on a new version

i'll rewire the pins on the ext connector and my question is, if i need to connect the pins 21 and 20 (+3V) on the ext side?

does anyone know, if these pins are allready directly connected on the CB inside the gp2x?
if not, do i get less current if i only connect one of the pins to my BOB? :huh:

the same question for pin 7 and 8 (TV ground) or 6 and 1 (audio ground)
or any other ground... are all the grounds (TV, audio, USB host, serial) on the ext port connected to one ground on the CB, or do they run to different chips and should be treated seperatly?

thanks