One possible solution...
>Could anyone help me with a means of deriving a delay of between 5 seconds &
>5 minutes.
>I'd like to use a 16c56..is this possible?

Short of using a VERY slow clock, how about putting a 555 timer pulsing once
every, say, 5 seconds onto the RTCC input pin?  A 555 with a period of 5
seconds is not extremely accurate, but I assume that when you are timing
something to 5 minutes extreme accuracy is not critical.  You might want to
use one of the new CMOS versions of the 555 timer (the original 555 design
tends to be noisy on the power lines).  If you do use a 555, be sure to put
a bypass capacitor at its power terminals.

Todd Peterson




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