Marki the "smart" search engine came back with: Prof David Mills: http://www.eecis.udel.edu/~mills/ntp/html/pps.html Pulse-Per-Second (PPS) Signal Interfacing Hardware: http://www.vk2hmc.net/blog/?p=583
If using Linux you need kernel version > 2.6.39.4 or version 3 kernel as the PPS interface is now included in the kernel. Unless of course, low latency and jitter is not an issue for you ;) You can use either parallel or serial PPS. For windows see http://www.davehart.net/ for binaries. David Taylor pretty much covers it here: http://www.satsignal.eu/ntp/NTP-on-Windows-Vista.html --marki -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Eugen Sent: Tuesday, 6 August 2013 9:47 AM To: time-nuts@febo.com Subject: [time-nuts] Generate 1 PPS signal on serial port Probably this was asked before but in searches I only find how to use an external 1 PPS GPS signal for NTP synchronization. Having a Linux/FreeBSD PC synchronized using NTP/chrony, what would be the best way of generating an output 1 PPS signal on a (hardware) serial port ? For timing I've seen the standard libc functions from <sys/time.h>, like setitimer(), but maybe there are better ways for generating precise delays. _______________________________________________ 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.
