Help needed: default paddle readings

Modding and Technical Issues

Moderator: Moderators

Post Reply
mimmosic
Vic 20 Drifter
Posts: 29
Joined: Mon Jul 01, 2019 8:28 am
Website: https://vic20reloaded.com
Location: Bologna
Occupation: programmer

Help needed: default paddle readings

Post by mimmosic »

Hello,
I am afraid I have a damage on my VIC-20, so I ask to do a test on your VIC just to see if we get identical results.

I was thinking about building myself paddles but I see that the following program:

10 PRINT PEEK(36872);PEEK(36873):GOTO 10

gives me a series of 0 - 0 pairs, which does not look right.

I have read that these number represent the value of the resistance expressed by the potentiometer (the paddle, but I did not plug enything at all yet!).

So a zero value means zero resistance = paddle at all left = short circuit.
I have also read that the default value when there is nothing connected to the game port should be 255 for both columns.

If you try the above single-line program onto your physical VIC-20, what do you get?

Thanks in advance to anybody willing to try it!
User avatar
TheVic20User
Vic 20 Drifter
Posts: 30
Joined: Mon Jan 13, 2025 2:22 pm
Location: Germany

Re: Help needed: default paddle readings

Post by TheVic20User »

On my Vc 20 PAL is 255 without paddle.
PRESS PLAY ON TAPE
mimmosic
Vic 20 Drifter
Posts: 29
Joined: Mon Jul 01, 2019 8:28 am
Website: https://vic20reloaded.com
Location: Bologna
Occupation: programmer

Re: Help needed: default paddle readings

Post by mimmosic »

TheVic20User wrote: Wed Apr 23, 2025 11:57 am On my Vc 20 PAL is 255 without paddle.
Thanks, this looks correct. 255=Max resistance=No paddles.

I definitely think mine has got a problem because I only get a list of zeroes.
Post Reply