Re: [Linuxptp-users] can't get linux PTP to run

[<Tim...@de...>]

Thanks guys, 
with your help I got ptp4l to run an my 3.2 Kernel. 

The only strange thing is that I get a jitter (measured every second) of about +- 25 microseconds this should be less with hw timestamps. Maybe I have to play around with the settings a little bit.

But you have been a great help to me Thanks
Benny

-----Ursprüngliche Nachricht-----
Von: Richard Cochran [mailto:ric...@gm...] 
Gesendet: Dienstag, 26. März 2013 19:53
An: Rapp, Tim-Benjamin
Cc: lin...@li...
Betreff: Re: [Linuxptp-users] can't get linux PTP to run

On Tue, Mar 26, 2013 at 04:00:11PM +0000, Tim...@de... wrote:
> Hi,
> 
> 
> I tested the ptp test porgramm.
> 
> capabilities:
>   599999999 maximum frequency adjustment (ppb)
>   0 programmable alarms
>   0 external time stamp channels
>   0 programmable periodic signals
>   0 pulse per second
> 
> What i can do:
> I can adjust the frequency,
> get ptp clock time
> set/get the ptp clock from and  to system time.
> time shift okay
> 
> What i can not do:
> timer_create: Operation not supported
> PTP_ENABLE_PPS: Operation not supported

This all looks good.
 
> I also tested /Documentation/networking/timestamping this seems fine:

But here you should see some output about getting time stamps from the transmitted packets.

Also, if you run a second instance of the program on another host, then you should also see time stamps on the received packets.

HTH,
Richard