On 8/3/22 15:33, Richard Cochran wrote:
I was wondering if someone has used this successfully at all?
Yes, I would guess so.
Is there a write-up or something similar available you know?
In general, what are the steps to set this up? Is this something managed in
the NIC driver itself or do I have to (permanently) run the `ts2phc` to keep
to PHC in sync?
You need to run ts2phc or similar. In general, the NICs are dumb devices.
Got you. Thanks.
Are there studies/measurements that compare the stability of such a system
to e.g. commercial PTP grandmaster solutions?
I haven't seen any. I've done my own reports showing, for example,
linuxptp + Intel210 + uBlox GPS radio performing comparably to
commercial GM solutions.
Same question, anyone aware of a write-up or blog post that gives some
instructions on HW wiring and (if any) driver modifications?
However, making a reliable GM product is quite a bit of work. The PTP
software stack is only one piece of the puzzle.
Yes of course. This effort is just to develop a poor man's GM as a PoC.
But nonetheless interesting to observe that there is practically no NIC
out there that brings together all the pieces. Should be quite easy to
do. Cards like the Intel XXV710-DA2T or E810-XXVDA4T with GPS input are
hard to get and $$$.
Thanks
Andre
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