On Sun, Aug 19, 2012 at 5:21 PM, Bob Camp <li...@rtty.us> wrote: > Hi > > The pi doesn't have a conventional serial port. It does have a TTL serial > on the 28 pin connector. There are also IRQ pins on the same connector. > Since they go directly to the CPU chip, hardware latency should be pretty > good.
Is there a PPS device driver on the version of Linux that runs on this board? In theory all you need is the interrupt pin and a high speed (usec or nanosec counter) counter that can be captured by the device driver. But even with this hardware has anyone written the device driver? I don't understand the comment about no well tuned ntp. 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.
