Re: Output record with TSE=-2 and info(asyn:READBACK, "1") returns <undefined> time.

[Torsten Bögershausen via Tech-talk <tech-talk at aps.anl.gov>]

On 2024-05-11 13:39, Yann Mandza via Tech-talk wrote:
> Dear all,
>
> I am working onan Asyn Port driver using with asynR4-42 on a Linux 
> machine. Am trying to add timing support for Output record using TSE=-2 and
>
> and info(asyn:READBACK, "1"). When I caget an output PV with TSE=-2 
> after caput to it the time obtained is <undefined> though the value is 
> well written to the device.
>
> A camonitor on a PV with TSE=-2 and info(asyn:READBACK, "1") show an 
> <undefined> time too though the read value is correct. I would like to 
> associate the device timestamp to the record for output readback, and 
> the current time return by epicsTimeGetCurrent to the record after a 
> caput. In my poller thread this is how I set the time stamp:
>
> epicsUInt32 seconds = 0;
>
> epicsUInt32 microsecs = 0;
>
> epicsTimeStamp time;
>
> sscanf( timeStampLastChanged/*hardware time string*, "%u.%u", &seconds, 
> &microsecs ) != 2 )
>
> time.secPastEpoch = seconds - POSIX_TIME_AT_EPICS_EPOCH;
>
> time.nsec = microsecs * 100000;
>
> pasynUser->timestamp = time;

Do you call setTimeStamp() ?

<https://urldefense.us/v3/__https://github.com/EuropeanSpallationSource/m-epics-ethercatmc/blob/master/ethercatmcApp/src/ethercatmcIndexer.cpp*L1798__;Iw!!G_uCfscf7eWS!Ym78ZmckUmmr90mF9sBrllYCvlNGCIZ_FitDo84KjDwEh7Tj7dWaAvjJ9ZpWelrizFvnelAsNeXwE8GCj9M$ >