J-Pac with Mame and SF2

[porkins]

I am using a J-Pac to connect my Jamma cabinet and extra buttons to a PC through the keyboard connection. Everything works fine, but I was wondering about the response in fighting games like Street Fighter 2. When I try to do moves like throw a fireball as Ryu, it just doesn't work. If I do a half circle, back-to-forward, I can get it to fire off more frequently. It is just not picking up the down, down+right,right inputs like it should. I am wondering if anybody has experienced this kind of issue using a J-Pac. I am thinking it is a limitation of the keyboard input having trouble registering 2 keypresses at the same time, or maybe just not registering quickly enough? I have the competition joysticks. Would a different interface work better? Thanks!

[paigeoliver]

I am using a J-Pac to connect my Jamma cabinet and extra buttons to a PC through the keyboard connection. Everything works fine, but I was wondering about the response in fighting games like Street Fighter 2. When I try to do moves like throw a fireball as Ryu, it just doesn't work. If I do a half circle, back-to-forward, I can get it to fire off more frequently. It is just not picking up the down, down+right,right inputs like it should. I am wondering if anybody has experienced this kind of issue using a J-Pac. I am thinking it is a limitation of the keyboard input having trouble registering 2 keypresses at the same time, or maybe just not registering quickly enough? I have the competition joysticks. Would a different interface work better? Thanks!

The problem lies not with your interface, it is somewhere else. It is your sticks, your switches, your wires, your mame settings or something else.

[Malenko]

if you hook up a SF2 PCB can you throw a fireball?  maybe check the actuator on the bottom of the stick, make sure its in "8 way mode"