> I am designing an application for an embedded computer (PC/104) and I
> need to attach a FLOW switch w/ Pulse.
> ...
> My question is, since the flow switch generates pulses so quick, is
> there any type of circuit that I can use to read this pulses other than
> my I/O board?
Clock a counter with the pulse, then take a periodic reading of the
counter. You may have a counter on-board, or be able to get a add-on
board with counter. A 16-bit continuous counter will probably work well.
--
Thad
Reply by Mike Gonzalez●April 15, 20062006-04-15
I am designing an application for an embedded computer (PC/104) and I
need to attach a FLOW switch w/ Pulse. It basical generates pulse
output proportional to the rate of flow. One example is
http://www.clarksol.com/html/crfo_crfa.htm ..
I have a Digital I/O board connected to my computer via RS232 and I can
read other types of inputs such as Start/stop switches, etc..
My question is, since the flow switch generates pulses so quick, is
there any type of circuit that I can use to read this pulses other than
my I/O board? The reason I am asking is because I am afraid that
becase these pulses can happen so quick that I will miss some reading
them with this I/O board.
Thanks in advance,
Miguel