[ntp:questions] Kernel PPS programs.

David Woolley david at ex.djwhome.demon.invalid
Wed Feb 8 17:45:58 UTC 2012

unruh wrote:

> I suppose I could turn of the interrupts on the card for 500ms then turn
> them on again to catch the next PPS, but that is a real kludge.

In the 1970s, level triggering was the norm.

The response to ACK is supposed to be to load another outgoing byte or 
to turn off interrupts on the card.  Using it for an open loop PPS 
signal is abusing it in a way that only works with edge triggered 

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