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Old 12-02-2007, 01:42 PM   #1
EDanaII
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Default Keyrah and Amiga 1000
What would it take to hack a keyrah to use an A1000 keyboard? Is it as simple as remapping the keyboard pinouts? Or would it be more complicated than that?

Just curious.

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Old 12-02-2007, 02:37 PM   #2
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Default Re: Keyrah and Amiga 1000
Did you ask Jens? :-?
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Old 12-02-2007, 02:59 PM   #3
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Default Re: Keyrah and Amiga 1000
I think so - the reset works differently on the A1000 but the rest is exactly the same.
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Old 12-02-2007, 03:00 PM   #4
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Default Re: Keyrah and Amiga 1000
Isnt it the same as a A500 keyboard?
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Old 12-02-2007, 04:41 PM   #5
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Default Re: Keyrah and Amiga 1000
i think this its you are looking

http://www.amigahistory.co.uk/a1000faq.html
&
http://stason.org/TULARC/pc/amiga/cd32/53-Pinouts.html
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Old 12-03-2007, 08:50 AM   #6
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Default Re: Keyrah and Amiga 1000
Thank you.


@rkauer:
Quote:
Did you ask Jens?
I didn't know that I could, or, even, that he was the one to ask.


@ Zac67:
Quote:
I think so - the reset works differently on the A1000 but the rest is exactly the same.
Could you explain a little further how the reset works differently? Thanks.

Ed.
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Old 12-03-2007, 10:25 AM   #7
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Default Re: Keyrah and Amiga 1000
On later models the reset signal (from three finger salute) is generated by the keyboard controller and there's a dedicated pin to run it to the system board.

The A1000 keyboard encodes it through a very long signal on KCLK and the actual _RST has to be regenerated by U4M (LM2901).

Since you probably don't need that function, it shouldn't really matter. ;-)

Oh, wait! Keyrah is only for passive keyboards like the A600/1200 ones, isn't it? So this won't work with the A1k KB.
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Old 12-04-2007, 10:06 AM   #8
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Default Re: Keyrah and Amiga 1000
No way to make the keyboard passive? Just wondering...

Thanks for the feedback.

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Old 12-04-2007, 10:12 AM   #9
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Default Re: Keyrah and Amiga 1000
Possibly the A1k KB uses the same matrix as later models, so it might work with removing the controller and connecting the then passive matrix to a Keyrah.

However, there's been a controller change from A1000/A2000A to A500/A2000B (my A2000A keyboard hangs in some games), so there's a chance the matrix was changed as well. You'd have to compare the keyboards to find out.
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Old 12-04-2007, 10:16 AM   #10
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Default Re: Keyrah and Amiga 1000
Yea, that's what I figured. Further research definitely required. Thanks again.
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