atari 2600 / 7800 controller question

[killersquirel]

Hi all,

 

I have a question regarding the atari 2600/7800 controllers. I'm building new controllers for these systems and I have a question regarding the ground on pin 8 and the +5v on pin 7. Would I do damage to either the atari 2600 or 7800 (or others such as c64, vic20, etc) if the +5v get's connected to the ground on a couple of the buttons? I'm trying to make a stick that will have 2 buttons. On the 2600 the second button would be the booster grip button and on the 7800 it would be the left and right buttons.

 

Thanks,

mike

[GroovyBee]

If you do that you'll short out the main supply to all the chips on the motherboard. Have a look at the schematic for the pro-line joystick to do it the correct way.

[killersquirel]

If you do that you'll short out the main supply to all the chips on the motherboard. Have a look at the schematic for the pro-line joystick to do it the correct way.

 

 

Thanks Groovybee. I figured it would do damage. I actually think I figured out a better way to do this. I will post the results when I complete the project.

 

-mike