measuring frequency

[YahooArchive]

Hi Bruce,

Is it possible to assign a pin as an input, connect it to a counter and read the
accumulated number of clock transitions?

I'd like to implement frequency measurement of a relatively low frequency signal
by reading the counter, recording the time and repeating the sequence at some
later time.

Best regards,

Jim

[YahooArchive]

What you are looking for is to run the counter/timer in counter mode. There are
2 available in the ARMweb. (2 and 3).