In a message dated 8/8/2006 17:21:56 Pacific Daylight Time, [EMAIL PROTECTED] writes: >Said,
>I understand that the micros work fine, it just seemed like you would >need a second one to discipline the OCXO because of the timing >constraints on the divider. Hi Randy, on our new GPSDO's we are doing it all in one micro, using the timer/capture/match units of the Arm parts. Complete freedom to use these with 32 bit resolution. And we have an Rtos running in the background for fun, since all the 1PPS etc is hardware driven and runs pretty much independently of the CPU. You can set the match outputs (generating the 1PPS etc) to any value you like, so one could generate up to 9 different PPS output frequencies or 1PPS pulses with different phases etc. The unit also captures any input pulse, and time-stamps it to within 16.7ns resolution. It has a bunch of these capture inputs for time-stamping. All that for <<$2... bye, Said _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
