Posted by jmark on 14, 2001 at 10:09 PM:
In Reply to: 25-pin switch? posted by Joshua on 14, 2001 at 8:35 PM:
Joshua,
I'm actually doing the same thing although on a somewhat larger scale (yep, I'm THAT optimistic!!!) with swithing for all 80 keyboard input pins and 11 (8 & 3 buttons) mouse pins of the KE72-T I'm using along with another 6 switch setup for the CGA/VGA to RGB connections on my D9200 monitor for a total of 97 switches?!? The reason behind this is so that I can keep total flexibility and expansion with any control panel I may add in the future as well as be able to hook up controls to JAMMA boards also...
Now the interesting question is how? Well... good question... I haven't seen ANY switch boxes that can handle this number of connections... so it does look like I'm going to have to build a circuit or two to do this... The inspiration for this is at the URL below (Russ came up with a solution using CMOS mux chips)... I will end up using the same chips he did, but may have to find an alternate chip for switching the RGB signal...
I'd check Russ's page under JAMMA and Circuit for a better description...
: I've been working on a control setup for a joystick that will eventually be implemented into a cabinet - right now it's actually 2 joystick hacks, a Dreamcast hack, and a USB gamepad hack for my Mac - each PC board is wired to a separate 25-pin connector, and the arcade controls are wired up to a single male 25 pin connector - so I can use the same control setup on either platform just by plugging in the appropriate PCB.
: But if this all gets mounted into a cabinet (as is my ultimate goal) it would be a pain to reach in and re-plug the controls when I switched systems. Has anyone seen anything that would switch between the two 25-pin connectors? I've looked at All Electronics and Radio Shack and didn't find anything, but maybe I'm looking at the wrong stuff?
: Sorry that rambled on so long. Any ideas?