I've updated my github with the final version:
https://github.com/pyroesp/PlayStation-1-Reset-Mod
All different programs I've made during the past couple of weeks are in there. Check the readme for more info.
Feel free to ask me questions if it's not clear enough.
Schematic and PCB are also provided.
Below is a board render out of KiCad. The actual board size is 14.5x12 mm, with 1.5mm diameter pads:
Back side is used to program the PIC microcontroller.
I've added both 1206 and 0805 components, for those that don't feel comfortable hand soldering 0805.
* I need to add text on the silkscreen to differentiate the cap from the res.
The microcontroller is a PIC16F18325, ran at 32MHz internal oscillator at 3.5VDC provided by the PlayStation 1.
I'm looking for people who might be interested in this and would be willing to provide documentation (pictures/annotation is fine) on where the mod could be soldered on the different PlayStation 1 motherboards.
See also this issue I made on my github :
https://github.com/pyroesp/PlayStation- ... d/issues/4
I have a PU-18 and iirc a PU-22 so I can make guide for those motherboards, but I don't have any of the other ones.
This evening I'll be sending the PCB files to JLCPCB, so I'm going to receive 10 boards in a couple of weeks.
For those that want to help, I can try to send those (populated or not, depending on shipping cost) to you.
pyroesp
EDIT: I have two programs for the arduino nano, but I can't remember if the second one ever worked :/.
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