[ntp:questions] raspberry pi, ntp & pps source

folkert folkert at vanheusden.com
Thu Jun 27 18:10:50 UTC 2013


I bought a adafruit gps module http://www.adafruit.com/products/746 and
a raspberry pi. Now cross compiling a kernel with pps support is too
much of a hassle (for me). So I wrote a small program which, from
userspace, listens on a selectable GPIO pin and then feeds the timestamp
via shared memory to NTP. Works not very bad: 10us jitter at most.
I thought maybe some of you might be interested.
The (open source, of course) program can be retrieved from:

Folkert van Heusden

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