c...@omen.com said: > What are the requirements for the 1 PPS signal fed to the carrier detect > pin? I presume the 10 us 1pps from the Thunderbolt is too narrow.
Sometimes it works. Sometimes it almost works meaning that it works well enough to look like it's working but only some of the samples are getting captured and it may drop out when something changes. I'm not sure of the details. I assume some hardware doesn't actually save the right info and/or some software looks at the current status rather than the saved bit. I suggest plugging it in and looking at the counters. You have to do something like this (as root) to get started: ldattach 18 /dev/ttyS0 Then just cat /sys/class/pps/pps0/assert Then wait a while and look again and see if the counter went up at 1 per second. You will get things like this: 1367878436.999973687#17737425 The stuff before the # is the time stamp. The stuff after the # is a counter that gets bumped on each interrupt. > I assume the rising edge of CD is the one gpsd triggers on. Is there a reason you want to use gpsd? -- These are my opinions. I hate spam. _______________________________________________ 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.