[ntp:questions] [ATOM (PPS) Refclock] Capture assert AND clear
f.hiesinger at studium.fau.de
Tue Apr 21 07:41:49 UTC 2015
I'm sourcing a pps-signal via GPIO on a raspberry Pi(debian whezzy).
The pps0 is configured to capture "Assert" AND "Clear" (mode = 0x11f3).
The internal echo-mechanism is used, so reception of BOTH edges is
required. Up to here everything works fine.
When ntp (incl. ATOM Driver 22) is starting, it instantly reconfigures*
the pps0-behavior to maintain either Assert OR Clear Edges. fudge ->
flag2 1 inverts the behavior. Any suggestions, how to prevent ntpd from
reconfiguring the pps-source?
* in detail, this pps-modebits are removed at the start of ntpd:
PPS_CAPTURECLEAR 0x02 (depends on flag2)
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