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Topic: DS3231 slow down (Read 7430 times) previous topic - next topic

gpsmikey

I don't have one, but it almost sounds like when you do a read operation, it latches the registers/counters while it does the read so you don't have changing data.  If that is the case and the counters are actually being latched instead of what should happen with latches off the counters so they are not affected, that could explain it being slow if you read it too often.  Doing the counter chain correctly would involve latches off the counters that could "freeze" the count during a read, however, if they actually "freeze" the counters themselves to do the read, that would explain the time loss.  Since all the complaints I have seen here seem to be that it is "too slow", that would be consistent with that idea (if it was something else, you would expect some to be too slow, some too fast etc.).
mikey
-- you can't have too many gadgets or too much disk space !
old engineering saying: 1+1 = 3 for sufficiently large values of 1 or small values of 3

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