On Wed, Apr 9, 2014 at 2:08 AM, Hal Murray <[email protected]> wrote:
> > > Also any code that accesses them needs to do so with interrupts turned > > off... otherwise you can wind up with corrupted values. > Forgot if I made this point but in a GPSDO when the interrupt is caused by the PPS, the interrupts are in effect off for 0.99999 seconds after each interrupt. The software can assume an interrupt will never happen less then one second after an interrupt. So the software does all the variable access within millisecond after each interrupt. These micro controllers are actually much easier to deal with than a general purpose multi-tasking operating system. There is far less non-determinism. -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
