Re: Any nice example of chrony, WWVB, Raspberry Pi ?

Mike Collins <mocallins-/[email protected]> Mon, 21 Oct 2024 19:14:23 +0000 (UTC)
Newsgroups gmane.comp.time.chrony.user
Message-ID <[email protected]>
Finally getting some results but will probably need some expertise on how to calculate the offseet /delay .
My problem was a little bit self inflicted.When i wired the antenna to the Raspberry Pi, i just picked some gpio pins that were somwhat close together, just to ease assdembly.However i ended up using the ic2 pins, and even though i disabled i2c in raspi-config, there still seemed to be some signals coming out of them.So i moved the 2 pins on the antenna board to other gpio pins, 17 and 27 which were still close to the ground pin i used, so easy enough to keep track of.
I don't know if i need to make adjustments or not, but there's what i'm seeing, any help would be appreciated.

[piclock]:</home/pi/> chronyc sources
MS Name/IP address         Stratum Poll Reach LastRx Last sample
===============================================================================
#* PPS                           9   4   377    22    +21ms[  +77ms] +/- 1815us
#? GPS                           0   4     0     -     +0ns[   +0ns] +/-    0ns
[piclock]:</home/pi/> chronyc sourcestats
Name/IP Address            NP  NR  Span  Frequency  Freq Skew  Offset  Std Dev
==============================================================================
PPS                         6   3    77  +1999.734   5613.035  +1966us    36ms
GPS                         0   0     0     +0.000   2000.000     +0ns  4000ms
[piclock]:</home/pi/>