[ntp:questions] Meaning of PPS flag2 -- assert/clear
John Ackermann N8UR
jra at febo.com
Fri Oct 6 23:40:41 UTC 2006
I seem to remember there was a message about this a couple of months
ago, but I can't find it now.
Can someone tell me definitively the electrical meaning of pps driver
flag2? More precisely, how should flag2 be set for:
1. Signal on DCD line normally high, going low at the on-time mark
2. Signal on DCD line normally low, going high at the on-time mark
In each case, it's the initial transition that's on-time; the trailing
edge of the pulse is not precise.
More information about the questions