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Conference 7.286::atarist

Title:	Atari ST, TT, & Falcon
Notice:	Please read note 1.0 and its replies before posting!
Moderator:	FUNYET::ANDERSON

Created:	Mon Apr 04 1988
Last Modified:	Tue May 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	1433
Total number of notes:	10312

310.0. "Mouse/joystick interaction" by MINDER::GILBERT (North UK Region Appl'n Centre @MCO) Mon Nov 21 1988 10:40

    Here's a feature that kept me busy for a while:-
    
    Symptoms: the mouse moves the pointer around OK, but selecting is
    very strange - clicks are ignored, occur in bursts, or select
    the wrong item. Basically it looked like a faulty mouse button or
    logic associated with the mouseterface.
    
    I'd just about decided to take the rodent to a vet when as a last
    resort I unplugged everything down to just mouse and screen - problem
    went away!
    
    Anyway, to cut my enthralling saga short, the problem was the joystick
    - the autofire switch was on. This appears to load up something in the
    system and cause mouse button events to be reported late and in
    bursts.
    
    Just thought you might be interested...
    
    Rgds, Brian

T.R	Title	User	Personal Name	Date	Lines
310.1	There's a good reason	PRNSYS::LOMICKAJ	Jeff Lomicka	`Mon Nov 21 1988 14:17`	2
	The mouse button and the joystick fire button are the same thing. They are connected in parallel.
310.2	On separate ports?	MINDER::GILBERT	North UK Region Appl'n Centre @MCO	`Tue Nov 22 1988 10:50`	5
	My understanding is that the mouse port can also be a joystick port, so fire = mousekey sounds reasonable for that port. In my set-up the mouse and joystick are on separate ports. Surely the fire signals aren't commoned across the two ports? That would make it impossible to connect two joysticks!
310.3	Mice have TWO buttons	CADSYS::DALTON		`Tue Nov 22 1988 12:04`	5
	Pushing the port 1 joystick button is the same as pushing the RIGHT mouse button on port 0.
310.4		LDP::WEAVER	Laboratory Data Products/Science	`Tue Nov 22 1988 21:10`	4
	The poor little 6301 keyboard processor was probably bogged down handling button press events. -Dave
310.5	Diagnosed, thanks	MINDER::GILBERT	North UK Region Appl'n Centre @MCO	`Wed Nov 23 1988 10:46`	8
	Thnaks for the input guys, explanation accepted. Degas Elite flips between menu and picture using the fire button. I would expect to find this documented in ST Intenals (Abacus), but it ain't! Rgds, Brian