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Re: IIGS Joystick issues



On 20 Aug, 07:45, Drew <GoggleD...@gmail.com> wrote:
> On 19 Aug, 20:25, "Ferdinan Meyer-hermann" <ferdinan.meyer-
>
>
>
>
>
> herm...@a2central.com.remove-5h3-this> wrote:
> >   To: Drew
>
> > Drew wrote:
> > > Hi,
>
> > > I am hoping this is a simple one :-). I have a ROM03 IIGS with a
> > > ZIPGSX (12.5Mhz 64K) and have recently got it out of storage. I was
> > > trying to play some old games last night but the joystick wouldnt move
> > > down at all (up left and right worked fine). I tried the joystick on
> > > another GS with another ZIPGSX card and all worked fine.
>
> > > I have made sure the CDA for the ZIP says that joystick delay is
> > > enabled.
>
> > > Any ideas?
>
> > Two, actually.
> > The first: Your joystick is out of calibration.
> > start the GS and type in the following simple applesoft program:
> > ]NEW
> > ]10 PRINT PDL(0),PDL(1)
> > ]20 GOTO 10
> > ]RUN
>
> > You will have two columns of lines on-screen.
> > the first is the X-Axis (left/right), while the second is the Y-Axis
> > (up/down). The values should be 0 in the upper/left position, 127 in the
> > middle and 255 in the lower/right position.
> > If the middle values are incorrect, you can adjust them using two controls
> > that are usually on the bottom of the joystick. The calibration needs to be
> > done for every computer the joystick is used on. It will, usually also work
> > on others, but you don't know for sure. If the middle value is 127 and 255
> > is still not reached in the lowest position, then you need idea two:
> > The joystick port uses some capacitors that can go out of tolerance. You
> > will then not be able to get the full range out of the joystick. The best
> > solution would be to replace the caps, but I don't know where they exactly
> > are. At least you can also connect a correction cap in the Joystick
> > connector or even to the joystick (this is what I did when I had the same
> > problem). If you have calibrated the joystick and tell me the readings you
> > get in the extreme paddle positions, I can tell you which cap you would
> > need, and where to connect it.
>
> > Regards,
>
> > Ferdinand
>
> Thanks for all the info :-), will give that a try tonight.
>
> Drew- Hide quoted text -
>
> - Show quoted text -

Hi Ferdinand,

Thank you so much for that basic program to check calibration. As soon
as did that all was ok. They must have been so far out that :-). For a
bit I thought my iigs setup was conflicting for some reason.

Cheers
Andrew