Wow. 350 nS. I had not been following this for the last few years. It seems the ARM is a simply CPU with much more predictable interrupts timing.
One might ask way you'd need such good internal timing. What got me into this years ago was scientific data acquisition. I wanted to time stamp the data. So I had a Linux based PC connect periodically to the Internet using a dial-up phone modem and run NTP. It worked well enough. A GPS receiver at $10,000 each was out of the question. On Mon, Mar 20, 2017 at 5:06 PM, Gary E. Miller <g...@rellim.com> wrote: > Yo Chris! > > On Mon, 20 Mar 2017 15:19:25 -0700 > Chris Albertson <albertson.ch...@gmail.com> wrote: > > > I've only hear of 1 uS being broken with hardware. > > A Raspberry Pi can get down to a Standard Deviation of about 350 nano > seconds > using NTPsec.. > > https://blog.ntpsec.org/2017/02/01/heat-it-up.html > > > RGDS > GARY > ------------------------------------------------------------ > --------------- > Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 > g...@rellim.com Tel:+1 541 382 8588 > > Veritas liberabit vos. -- Quid est veritas? > "If you can’t measure it, you can’t improve it." - Lord Kelvin > _______________________________________________ > 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. > -- Chris Albertson Redondo Beach, California _______________________________________________ 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.