piclist 2000\06\01\083806a >
Thread: AT Keyboards --- Not all equal!
www.piclist.com/techref/index.htm?key=keyboards+not+all
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face BY : John Hansen email (remove spam text)



<x-flowed>At 10:58 AM 6/1/00 +1000, you wrote:
>At 05:49 PM 5/31/00 -0400, you wrote:
>
>I had the same problem with different keyboards as you describe.
>
>Some keyboards require the CLOCK period to within tight margins. If I
>remember
>correctly this is 40us for a full period.
>
>If the clock period is off some keyboards will not work, others will. When
>I got the clock right all the keyboards worked 100%
>
>-Jim

I'm wondering if you would elaborate, Jim.  The clock is generated by the
keyboard.  As long as I read the data after the falling edge of the clock,
shouldn't I be ok?

Thanks,

John

</x-flowed>
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In reply to: <3.0.5.32.20000601105856.00afe800@mail.pipeline.com.au>
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