I have an application that needs to count pulses coming in from two electricity
meters. The
pulses are about 10mSec, so it would be (barely) possible to watch for them in
a program,
but I am worried about missing pulses when the system load is non-zero.
It would seem better to use a hardware counter, and read it every minute or so.
Searching
the list, Peter Elliott mentioned TS-XDIO. This seems to be a feature of the
7260 only, and
having read the manual, I am still not clear if it does what I want. Our
standard platform is
the 7250, although I have used a 7260 in one instance.
I need *two* counters, of minimum 8 bits, preferably more, that can be read and
reset by
software. I want to avoid external hardware. Do I need to read the 7260
manual even more
slowly?
Or is this something I should ask Technologic to do within the FPGA? Or hire
someone else
to write some FPGA configuration?
I don't really understand my options here - please be gentle with me!
Martin
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