Hi
On Jul 1, 2013, at 4:02 PM, Hal Murray <[email protected]> wrote: > > Bob Camp <[email protected]> said: >> Since all of these boards run a fairly complex OS, we'd also need kernel >> code to support them ... > > Most OSes already have support for PPS capture on modem control pins so it > shouldn't be too hard to add support for GPIO pins. (I'm not claiming it > would be trivial, just a lot simpler than starting from scratch.) The reference I was making was to a "pie in the sky" 1.8 GHz clocked timer integrated into a CPU chip. That would let you come up with ~ 600 ps timing directly. Since it would be both unusual and very fast, a driver (potentially tightly linked to the kernel) would be needed. That's not a trivial thing…. Bob > > > -- > These are my opinions. I hate spam. > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
