Date   : Sat, 16 Sep 2006 19:02:43 +1000
From   : "Bob Devries" <bdevries@...>
Subject: Re: AMX mouse wiring

More info on my mouse problem:
I swapped the two VIA chips, and found no difference.
The BBC in question has a Revision 4 motherboard. It is fitted with the 8271 
floppy disc controller, and the speech chips, but no econet.
I hope I have the correct pinout for the user port Pin 1 is at the east side 
and the pins number 1 to 10 along the north edge, and then 11 to 20 starting 
at the pin 1 end again. If this is not correct, please let me know.

--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "Bob Devries" <bdevries@...       >
To: <bbc-micro@...         >
Sent: Saturday, September 16, 2006 5:22 PM
Subject: [BBC-Micro] AMX mouse wiring


> I'm trying to connect an Amiga mouse to the BBC userport as per 
> instructions found on various web sites.
> Problem is, it doesn't work quite right. The mouse X direction *only* goes 
> up, and the Y direction is reversed from what it should be.
> Here's the pinout I have:
>
> BBC USER PORT      name      AMIGA    name
> Pin 1                          +5V           Pin 7        +5V
> Pin 3                           0V            Pin 8          0V
> Pin 11                         X-Axis      Pin 4      Mouse HQuad
> Pin 12                         Y-Axis      Pin 3      Mouse VQuad
> Pin 13                         X-Dir        Pin 2      Mouse H
> Pin 14                         Y-Dir        Pin 1      Mouse V
> Pin 18                         L-Button   Pin 6      Button 1
> Pin 19                         M-Button  Pin 5      Button 2
> Pin 20                         R-Button   Pin 9      Button 3
>
> Can anyone see a problem, or have a different configuration?
>
> --
> Regards, Bob Devries, Dalby, Queensland, Australia
>
> Isaiah 50:4 The sovereign Lord has given me
> the capacity to be his spokesman,
> so that I know how to help the weary.
>
> website: http://www.home.gil.com.au/~bdevasl
> my blog: http://bdevries.invigorated.org/
>
>
>
>
> -- 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
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>
>