Hi all,
I need to multiply some incoming pulses, let=B4s say ther are coming
in 10 pulses per minute, but I need to display this as 10 pulse/min
on a lets say 5 sec time base, means all 5 seconds I need to have
the calculation done and display the result.
The way I have done this is using some NAND gates a couple resistors
and caps in integrator configuration, so I get 4 pulses for 1 using
1 complete 4011, 4 resistors, 4 caps.
It works, but the multiply rate is somewhat low and the whole thing
little bulky.
Then I tried using a PLL (4046) and a couple gates and stuff making
a multiplier, but without results, anyway I didn=B4t have time to work it
out.
Anyone has a better idea of doing.
The system I am using is a 16F877 which drives 4 ICM7211 drivers
in a 2 totalizer and 2 rate counter configuration, which is working well so=
=20
far.
But I would like to perfect the multiplying section to perfect, best=
 multiply
rate would be 16 or more.

Thanks

Friedel

Friedel Bruening
Bolivian Instruments
Casilla 4856
Santa Cruz
Bolivia

Tel : 00591-773-92119
Fax: 00591-3-3580572
e-mail : bolinst@cotas.com.bo

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