Re: TI-H: link port specs
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Re: TI-H: link port specs
From: Grant Stockly <gussie@stockly.com>
> >From: Grant Stockly <gussie@stockly.com>
> >Grant, have you looked at the timing pulse with a 'scope? When I checked
it
> >it on one of my 85's it looked a bit strange, low for half the cycle,
then
> >instead of high for the other half, the 'scope trace turns into a solid
bar
> >between 0 and Vcc. Like it was oscillating really fast during the up
time
> >or something.
>
> Thats fine. OSC inputs only need to be just above GND. The pulses don't
> need to be even, especially on a calculator.
ok, cool, I wasn't sure what the deal on that was. sure was ugly tho :)
Can you see any drawbacks to having a crystal clock on the calc?
DK
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