Hi > On Apr 26, 2017, at 12:29 AM, Jerry Hancock <je...@hanler.com> wrote: > > Do typical frequency counters start their gate in phase with the incoming > signal? I guess the > answer would be, "It depends." I was just thinking about how I would program > the STM32F7 > counter I am designing.
Since they don’t start (or stop) the gate in any specific relation to the input signal, the trick is to make sure you don’t get an extra count when the gate opens or closes. This is right back to the edge triggered vs level triggered issue. It also gets indirectly into the rechecking process in the MCU. Some of the “edge trigger” stuff is done in odd ways ….(= got two of the same after rechecking into a shift register …). Bob > > btw, Gilbert, a local time-nut, sold me a 5335 today so I will be able to > buiild one great one > out of the two I will have. > > Jerry > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
