SetPin(GPnn), FIN query

Author	Message
carlschneider Senior Member Joined: 04/08/2023 Location: South Africa Posts: 158	Posted: 02:04pm 26 Aug 2023       Thanks for the response and guidance phil99, matherp and TassyJim, much appreciated. Peter’s explanation has resonated and I now realize that to achieve 2 decimal precision I would need a gate time of 100s, ie a count of 5001 in 100s will yield the desired 50.01Hz. For my intended usage I will have to stick with period measurement to derive the frequency. The GPS route sounds fascinating Jim. I wonder if an external RTC, DS3231’s 1Hz output would be stable enough as a reference. I assume your implementation did some sort of synchronization and then measured the phase drift. Thanks again for your assistance.