Electronics > Beginners

Recreating mod chip designed for the Playstation 1.

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Katcher:

--- Quote from: oPossum on November 10, 2018, 06:09:22 pm ---
--- Code: ---PK3         12F508
-------------------
 1   MCLR   MCLR 4 
 2   Vdd    Vdd  1
 3   Vss    Vss  8
 4   PGD    GP0  7
 5   PGC    GP1  6
 6   LVP    ---  -

--- End code ---

http://ww1.microchip.com/downloads/en/DeviceDoc/41227E.pdf

--- End quote ---

So can I just get a board that will allow me to socket a SOIC package PIC12F508 into a DIP-8 socket and wire that socket up directly to the pin outs?

james_s:
Yes, or just tack solder wires to the corresponding pads on your mod chip board and connect those to the programmer, what's what I do for this sort of thing.

If you were going to make a whole load of them, you'd build a test fixture with pogo pins where you just hold the board down or flip a cover down to hold it in place and flash the firmware, pop it out and put the next one in.

Katcher:

--- Quote from: james_s on November 10, 2018, 06:40:10 pm ---Yes, or just tack solder wires to the corresponding pads on your mod chip board and connect those to the programmer, what's what I do for this sort of thing.

If you were going to make a whole load of them, you'd build a test fixture with pogo pins where you just hold the board down or flip a cover down to hold it in place and flash the firmware, pop it out and put the next one in.

--- End quote ---

First solution I can do no problem but this pogo pin solution has grabbed my curiosity. The hell is a pogo pin and in what way could I utilise them?

james_s:
http://lmgtfy.com/?q=pogo+pins

Katcher:
Boards arrived. I'm impressed with JLCPCB's quality with such a small 11x11mm PCB. I might need to make a second revision of this design though. 11x11mm is a little too small for me to comfortably work with and I underestimated how thin 0.6mm is for thickness. Maybe go back to a 14x14mm or 15x15mm board with 0.8mm or 1.0mm thickness, keep the pads the size they are too and sort the outline for the IC so I know how to orientate them.

In the meantime though I can certainly use these to get things working.

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