MD Detect the control commands in the cartridge slot?

[afsblood]

I want to detect the control commands (some pin that stays high or low) when a key is pressed ...
Does anyone know anything about it?
thank you.

 

[pool7]

Hmmm... I may be missing something here, but... what console/device are you talking about?

 

[afsblood]

oops
megadrive ... detect the control pins in the cartridge slot

 

[Trimesh]

There is no actual pin in the cartridge slot that's connected to the controller port. The code in the ROM has to read the controllers (connected through memory mapped ports at $a10002-$a10007 and then use it.

 

[afsblood]

Thank you very much.