forums.ps2dev.org

I ran into this exact same problem, I guess the sudden current spike when the circuit is first attached might trigger some protection feature that shuts the PSP down in case of a short. Placing an N4001 diode in series between the V+ from the serial port and the input to my circuit solved this probl...

Excellent work, your project was posted on hackaday.com today too. I am very interested in seeing the source code for your plugin whenever you are ready to post it. The through hole version of the PS/2 connectors you are looking for can be ordered from here in single quantities. The PCB looks great ...

Good to see you got everything working, there is some info on simple level shifting techniques here , if it's still of any use to you. I'm also looking to get the same thing working on the software end so that the Ps2 controller buttons can be ORed with the PSP controls. I have done a simple hardwar...

Wow, that's a lot of edits. Cool project, this is something I am interested in as well. I have also been playing around a little with using an AVR to communicate through the PSPs serial port, in my case using an ATmega168 to interface a Playstation2 controller. Using PIkey with Jean's plugin, everyt...