On 24/01/2023 0:36, Richard Cochran wrote:

On Mon, Jan 23, 2023 at 10:44:35AM -0800, Rahul Rameshbabu wrote:

quoted

1. Can the PHC servo change the frequency and not be expected to reset
    it back to the frequency before the phase control word is issued? If
    it's an expectation for the phase control word to reset the frequency
    back, I think that needs to be updated in the comments as a
    requirement.

I would expect the PHC to restore the previously dialed frequency once
the ADJ_OFFSET (adjphase) calls stop.

Hi Richard,
I guess this expectation should be part of the documentation too, right? 
Are there more expectations when calling adjphase?
In previous responses on the mailing list it said that adjphase should 
not cause the time to 'jump' - is it also correct?

It seems that "Feeds the given phase offset into the hardware clock's 
servo" is still missing some information.
Can you help clarify the expected result after calling adjphase from SW?

Thanks,
Bar

Thanks,
Richard