Thread: Best way to measure period between pulses? Counters and FPGA
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Unread 28-01-2013, 18:02
jhersh jhersh is offline
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Re: Best way to measure period between pulses? Counters and FPGA
Quote:
Originally Posted by Joe Ross View Post
The FPGA doesn't return floating point values, so the period isn't in units you can use directly. Presumably, the Period is actually the period in clock cycles, and the count is the number of clock cycles per second. Dividing those two gives you a period in seconds.
Close. The "period" is in microseconds. The "count" is the number of samples accumulated by the averaging engine. The code also divides by 1.0e6 before returning to give the required "seconds" unit.