Date   : Mon, 18 Sep 2006 21:46:36 +1000
From   : "Bob Devries" <bdevries@...>
Subject: Re: AMX mouse wiring

And reversing the X-Axis and X-Dir wires completed the job successfully. All 
works now.

--
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: Monday, September 18, 2006 12:17 PM
Subject: Re: [BBC-Micro] AMX mouse wiring


> Ah-hah!
> I have found a website that shows D2 not D1 as the Y-Dir. Changing that 
> made the Y direction correct.
> Using a logic probe, I can see that the amiga mouse has the one Quadrature 
> line idling high and the other at low.
>
> I will try reversing the X-Axis abd the X-dir wires to see what happens.
>
> --
> 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: Monday, September 18, 2006 11:16 AM
> Subject: Re: [BBC-Micro] AMX mouse wiring
>
>
>> Regardsless of which numbering convention you use, I have the wiring done 
>> correctly according to information I have gleaned from websites:
>> +5V goes to mouse pin 7
>> 0V to pin 8
>> CB1 to pin 4 (mouse Hquadrature)
>> CB2 to pin 3 (mouse Vquadrature)
>> D0 to pin 2 (mouse H)
>> D1 to pin 1 (mouse V)
>> D5 to pin 6 (left mouse button)
>> D6 to pin 5 (middle mouse button)
>> D7 to pin 9 (right mouse button)
>>
>> The buttons work fine, but the horizontal direction is reversed, and the 
>> vertical direction only goes one way towards the top of the screen.
>>
>> My guess is that the information I have is somehow incorrect, but where 
>> do I find a reliable connection diagram?
>>
>> --
>> 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: "Philip Pemberton" <philpem@...          >
>> To: <bbc-micro@...         >
>> Sent: Saturday, September 16, 2006 8:07 PM
>> Subject: Re: [BBC-Micro] AMX mouse wiring
>>
>>
>>> Bob Devries wrote:
>>>> 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.
>>>
>>> That pin numbering scheme is completely wrong.
>>> IDC connectors are numbered like this:
>>>
>>>   1 3 5 7 9 11 .... 19
>>>          +---+
>>> +--------+   +--------+
>>> | o o o o o o o o o o |
>>> | o o o o o o o o o o |
>>> +---------------------+
>>>   2 4 6 8 10 ...... 20
>>>
>>> The little arrow on the connector denotes pin one -- normally the red 
>>> line on the cable. If you pull the back off the connector (assuming 
>>> you've got an uncrimped one), you'll notice that the pins are 
>>> interleaved. Near the arrow, there will be one pin that's closest to the 
>>> outside of the plastic - that's the IDC tag for pin one. Pin two is the 
>>> one below it, about 0.05" (1.27mm) to the right. Pin three is then on 
>>> the same row as pin one, 0.05" further along than pin two. This 
>>> continues to the edge of the connector.
>>>
>>> Thanks.
>>> -- 
>>> Phil.                         |  (\_/)  This is Bunny. Copy and paste 
>>> Bunny
>>> philpem@...                   | (='.'=) into your signature to help him 
>>> gain
>>> http://www.philpem.me.uk/     | (")_(") world domination.
>>>
>>>
>>>
>>> -- 
>>> No virus found in this incoming message.
>>> Checked by AVG Free Edition.
>>> Version: 7.1.405 / Virus Database: 268.12.4/449 - Release Date: 
>>> 15/09/2006
>>>
>>>
>>
>>
>>
>>
>> -- 
>> No virus found in this incoming message.
>> Checked by AVG Free Edition.
>> Version: 7.1.405 / Virus Database: 268.12.4/449 - Release Date: 
>> 15/09/2006
>>
>>
>
>
>
>
> -- 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.1.405 / Virus Database: 268.12.4/449 - Release Date: 15/09/2006
>
>