RPi I/O

JonasE

Hi,

Is it possible to use the RPi I/O pins as inputs for joystick/buttons/credit/etc when using Mame4All? If not, is M4A compileable on RPi? Or do I need a cross compiler?

Best regards, Jonas

Chrisi

Hi,
That would be awesome...
Tried already to find drawings, configs and stuff but cant get anything together...
Maybe some genius one day..........

bjo88

no need to be a genius.. :) as long as can "google" or diligent enough to read all the discussions entry in this forum, you will find the answer... :)

http://learn.adafruit.com/retro-gaming-with-raspberry-pi/buttons
http://pimame.org/forum/discussion/comment/462#Comment_462

Rpi has 15 IO pins that you can use immediately for all PiMAME menu and its emulator, including mame4all... I use 4 pins for dpad keys, 6 pins for JB1 to JB6, left 5 pins for credit P1, start P1, Pause, Tab for config and Escape button.

JonasE

Thanks alot for your comment! I also found the Pikeyd. I guess the result is about the same.

Best regards, Jonas

bjo88

Hi JonasE
Pls check http://pimame.org/forum/discussion/comment/697 , Shea found out PikeyD is not working well, but I cannot confirm as I never try it.

GGuyZ

This is very doable. That's what I did with my project.

I couldn't get Pikeyd to work consistently with PiMAME either, so I used Adafruit's retrogame to map RPi's GPIOs, and I wrote a driver for MCP23017 extension chip, since I needed more inputs. You can find it here:
https://github.com/guyz/piarcade

Here's my project -
http://i.imgur.com/JCeP4Cg.jpg

It's running PiMAME and working flawlessly with the joystick/buttons.

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