PROPHET64 & MSSIAH Userforum




Official information and support forum for
MSSIAH and all PROPHET64 versions.



You are not logged in.

#1 2006-10-23 21:27:17

dotmatrix
Monty
Registered: 2006-10-23
Posts: 87
Website

crappy mouse behaviour

hi
i really need help here:

since the atari mouse that i got was not working properly , i bought (from a friend of mine) a completely new 1351.
the mouse is in extremely good condition that means that i had to unwrap the original plastic foil
(it came in original box and was never opened)
so the 1351 cannot be the problem

after trying it out it shows exactly the same behaviour as the atari mouse did before (damn!)
horizontally it works fine , but vertically , it stutters around like some old mice that have tons of dirt on the mechanics.
i don't know what to do! i really need it working as soon as possible !

please help and thanks....
markus.

Offline

 

#2 2006-10-24 01:33:30

Slorrin
PROPHET64 GURU
Registered: 2006-07-09
Posts: 871

Re: crappy mouse behaviour

do you have a multimeter?

Measure the outputs of the x axis pins to make sure the resistor is not stuttering.

Also, clean the contacts, check that the pins in the joyport are not lose or dirty or bent or corroded.

These might help.

Offline

 

#3 2006-10-24 07:43:06

MikeTorino
Guest

Re: crappy mouse behaviour

It looks like the AD converter in your SID is messed up. Try out the "Test port" app in the startup menu, connect another pot to the same input as the y-axis of your 1351. If it works properly, it's your mouse, if it doesn't then it's clearly the SID.

 

#4 2006-10-24 09:23:10

dotmatrix
Monty
Registered: 2006-10-23
Posts: 87
Website

Re: crappy mouse behaviour

the ad converter in the SID? what has it to do with my mouse?
the mouse is as good as new.

yesterday ,I connected a paddle to the other joyport for controlling the mono synth , and the value was changing around between 3 steps
(fe between 35,34,and 33 if set to 34) very fast.

the strange thing is that with the old p64 version everything worked fine
maybe i'll make a video of it.

Offline

 

#5 2006-10-24 15:43:21

MikeTorino
Guest

Re: crappy mouse behaviour

dotmatrix:
It's actually the SID circuit that reads out the analog voltage and converts it to a digital value.
The rapid change of values is quite normal, pots tend to be a bit "shaky".

 

#6 2006-10-24 16:02:53

dotmatrix
Monty
Registered: 2006-10-23
Posts: 87
Website

Re: crappy mouse behaviour

you mean the sid chip is the ad converter for the joyports?
sounds strange to me.
the sid chip in my c64 is not the original one. i've replaced it with a 6581 R4 from a dead c64

Offline

 

Board footer

Powered by
© Copyright 2002–2008