forums.ps2dev.org

[nonzero]

Nice PS2/PSP analog mod here and I was wondering if it is possible to wire up a similar style of connector to plug a complete external PS2 Dualshock pad into a PSP?

Some pinout info for the PSP would be nice.

[Art]

There is no pinout info, he would have traced back from the original
pot connetors from the analogue stick.

You could easily do it with the D pad as well, but I doubt the PSP will ever
provide an output for the two Dual Shock motors.

It's only the physical implementation that makes that mod impressive at all,
but if you added support for the whole D pad, you'd have to use something
other than a USB connector that only provides four conductors.

[nonzero]

The analog mod was quite simple because all the points are exposed on the back of the potentiometer and wiring it up to the analog ain't that hard:



As for the pad I'm going to use an original Dual Shock (not worried about the vibration yet, think of a way to implement that later) as they were fully digital with no extra circuitry making a point to point using copper enamel wire inside the PSP less complicated:





As you can see the arrangement looks very similar, hopefully the process should be quite simple.

Seeing as the Dual Shock uses a common earth on the face buttons and dpad does that mean I only need to send one earth wire to the PSP from the pad? Also, does anyone know if the PSP operates in a similar way?

If the common earth things works in groups then the maximum wires I will require is 22 - A small, sexy looking device to enable connection and disconnection of the pad is required to mod into the PSPs casing somewhere - Once again, any ideas?

[Art]

[nonzero]

Like I said, that was just a rough guess - I'm intending to patch from wire to wire to extend the control (bypassing all the pads tech and just using input signals), don't know anything about interfacing serially with the PS controller, so the way I see it:

Wires
8 dpad
4 analog
2 start
2 select
8 face
4 shoulders
4 optional (home/brightness)

At the max if they all need individual earth wires making 32 connections. If the PSP buttons are like the PS then the face buttons all share one common ground dropping that figure to 5 - Could that same earth be used for the all of the buttons? That would drop my wires by a few.

Do you have another way of doing this apart from point to point?