Ext Port Pinouts

[Manwe]

I just bought starndart ARM-JTAG cable (manufactured by Olimex). It has LPT connector and 20-pin connector on the other side, which I want to crack and then solder some wires to the GP2X's Ext connector (taken from TV out cable).

According to wiki page, I need to solder TDO, TCK, TMS, TDI and TRS wires to corresponding pins on the GP2X connector. And GRD as well, I suppose (should I connect nRESET and +3.3 V, by the way?).

...But some people say, pins numbering in wiki is wrong... Can somebody confirm right pin numbers?

 

[Manwe]

Uff, I spent a hour with tester and needle, and finally drawn all that pins.
Here is a right scheme of the GP2X TV cable connector.

So, you can use this scheme to solder own devices to the TV-cable connector.

 

[crusty]

Uff, I spent a hour with tester and needle, and finally drawn all that pins.

My voltmeter and needle suggest you have exchanged pins 23 and 24.
A good look with a magnifying glass suggests the same.

I have yet to solder up my serial cable because my soldering pencil
is like a blunt instrument on connections so tiny.

 

[Manwe]

This sounds very strange. I just tested connector again and found pins 23 and 24 according to my scheme. Actually, I removed one pin by unlucky chance, while demounting TV cable, so I pluged that pin back manually later. It may cause an misstake, but it was not 23 or 24 pin, if I remember right.
Also, an order of 23 and 24 pins fits well in whole scheme "rythm".
Could you, please, check again? And is your connector taken from GPH TV cable?