Hardware: Arduino DUE with Adafruit Ultimate GPS
Project: Controller for Slow Scan TV Camera connected to Amateur Radio transmitter. The controller implements a time window scheme so that multiple cameras can be used on the same RF frequency by staying within their assigned time windows.
The time aspects of this project are designed on the presumption that GPS lock could be lost some times. In that event, the GPS RX stops the 1 PPS signal. Thus I don't want to base my time sync on it being there all the time. Instead, I want to use the 1 PPS signal to discipline (adjust the count value) a counter that generates 1 interrupt per second to drive my time keeping by keeping the seconds synced to the GPS. It would be OK if the 1 PPS signal went away for a while. I won't need high time precision but I do want the clocks in all controllers to be reasonably synced to the second.
I could see checking clock sync a few times a day, but it does not have to be constant.
The research I've done thus far has not revealed someone that has done that, AFAIK. Is this a feasible approach? Any suggestions on how to implement this on a DUE?
Chuck - NA6BR
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