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Unread 28-01-2013, 12:02
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Re: Best way to measure period between pulses? Counters and FPGA

Quote:
Originally Posted by Mr. Lim View Post
Something isn't jiving here. In the above code, why would you take the period and divide by the count? If the FPGA is measuring the period directly, should we just be taking the period directly? Will count ever be anything other than 1?
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.