Brent Brown wrote:
>
> My questions?:-
>
> - Can the PC parallel port in a fancy mode like ECP or EPP or
> something automatically generate a strobe pulse when 8 bits of
> data are output? This would reduce the PC overhead.
>
> - Has anyone used the TPIC6A595 from TI, or the A6A595 from
> Allegro with good or bad comments, hints or tips? Is the built in
> protection any good?
>
> - Any comments welcome.


You would still be limited by the OS of the PC as to how much data
transfer comes in/out of the parallel port.

186 bits, 1 for each solenoid = 24 bytes (worst case) of data to send
plus handshaking. Multiply this by 1000 changes / second and perhaps the
PC will not be able to cope reliably.

--
Best regards

Tony

mICro's
http://www.picnpoke.com
mailto:sales@picnpoke.com

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