Hi.
Any descriptions on the Joystick pinouts. I know they are standard Atari like, C64 etc.
But does it have 5v+ too ?
Some joysticks have Autofire, which use the 5v+ line.
Joystick plug pinout.
Joystick plug pinout.
//CLAUS - Webmaster at www.mtxworld.dk
Re: Joystick plug pinout.
It should also be mentioned that on the joystick ports, pin 8 is NOT ground (GND), but is a common for that port ONLY.
Autofire joysticks as well as needing +5V on pin 7, also need a real 0V/GND on pin 8.
Pin 8 on the joystick port of an MTX is either an input port pin (plug J4) or an output port pin (plug J5). This makes no difference if the only thing inside a joystick is ‘voltage free’ switch contacts.
But joysticks with autofire have an electronic astable multivibrator circuit (two transistors or a 555 timer chip or similar circuit). All of which expect a real 0V/GND on pin 8.
Mark
Autofire joysticks as well as needing +5V on pin 7, also need a real 0V/GND on pin 8.
Pin 8 on the joystick port of an MTX is either an input port pin (plug J4) or an output port pin (plug J5). This makes no difference if the only thing inside a joystick is ‘voltage free’ switch contacts.
But joysticks with autofire have an electronic astable multivibrator circuit (two transistors or a 555 timer chip or similar circuit). All of which expect a real 0V/GND on pin 8.
Mark
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