Thanks for pointing this out David, Compiling an new kernel was holding me back. I followed your instructions and everything works beautiful. The PI that is running the PPS timekeeping with NTP is serving as a VLF receiver as well. Taxing the poor CPU, but with kernel PPS support the NTP daemon has become way happier! (see attachment)
73, Frits W1FVB On 12/8/14, David J Taylor <david-tay...@blueyonder.co.uk> wrote: > From: Chris Albertson > > Really? The PPS to GPIO interface is handles in user space? It is not > interrupt driven? > In the implementations I've seen the critical real time work is done inside > the PPS interrupt handler and then of course ntpd runs in userland and can > take as much time as it needs > ================================================= > > Folkert's solution was very helpful, but there is now kernel-mode PPS > support for a GPIO pin the current Raspberry Pi Linux - see: > > http://www.satsignal.eu/ntp/Raspberry-Pi-NTP.html#easy > > I'm running that on a couple of systems here. > > Cheers, > David > -- > SatSignal Software - Quality software written to your requirements > Web: http://www.satsignal.eu > Email: david-tay...@blueyonder.co.uk > > _______________________________________________ > 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. > -- vbradio.wordpress.com
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