Dear all, are few days I'm in trouble with the following problem:
how to produce pulses bursts (from 5 portb of a 16f84 4 MHz) starting
from the same instant.
The number of pulses for each port can change from 0 to 65535, the
pulses freq can be any, the repetition rate of the bursts is 10 sec(from
an external trig).
I've tried to implement sorting routines but I realized to be too heavy,
more I tougth to produce a mask of the port  in W, decreasing for 1 any
of the 5 words checking to Z and setting to 0 the relative bit in W
putting out W and more settingW to all 1s  putting out it again; this
approach seems to me too time expensive.
This is a part of a project for a balloon borne experiment.
I'm sorry for my awful english, please be patient and "grazie" for any
suggestion.
Maurizio

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Maurizio Viterbini
Istituto di Fisica dell'Atmosfera
Via Fosso del Cavaliere 100
00133 Roma
Italy

tel. +39 06 49934200
fax +39 06 20660291
email viterbin@ifa.rm.cnr.it

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