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Author Topic: Joystick connection (C64/Amiga)  (Read 3825 times)

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Offline gertsy

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Re: Joystick connection (C64/Amiga)
« on: June 13, 2011, 10:25:55 AM »
Quote from: psxphill;644312
the biggest problem is when you touch all the pins with your finger trying to find the socket when plugging the joystick in.


No, unless your finger's wet, or you've had it in your nose or ear. The biggest problem is when you fumble around trying to plug in a metal rimmed plug (like some mouse plugs) and the rim shorts pin 7 to the joystick port skirt.  Apart from that you can plug and unplug a plastic joystick plug while the Amiga is on without any danger to it.
The biggest anoyance is the recessed joystick ports, you cant see them unless you have a go go gadget neck.

BTW. If you had a special joystick made up it could be detected by providing a resistance on pin 5, the lightpen button / X-Pot connection.  But normal digital joysticks; no go on a detection there.
 

Offline gertsy

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Re: Joystick connection (C64/Amiga)
« Reply #1 on: June 13, 2011, 12:56:09 PM »
Quote from: Zac67;644693
That's right - there are two perils when 'hot' plugging devices:
- shorting powered pins to ground (causing a fuse or track to burn) or an I/O pin that can't cope with it (destroying some active component)
- static electricity: even when not noticable to humans, static buildup (of a non-earthed device or body) of a few hundred to several thousand!(!) volts can instantly destroy electronics

While the Amiga's joystick/mouse ports are explicitly hardened against the latter danger (see manual) there still is some danger, so handle with care!


This guy goes through PCs like you wouldn't believe.
http://superherouniverse.com/art/showphoto.php/photo/16795/ppuser/890