Re: Waveform record missing fields

[Michael Davidsaver <mdavidsaver@bnl.gov>]

Hi Mark,

http://bazaar.launchpad.net/~epics-core/epics-base/3.14/changes?filter_file_id=waveformrecord.dbd-19960624131907-wwx9ykn4t0kkjfg8-41

The short answer is that these fields haven't ever existed in 
waveformRecord.dbd.

Michael


On 2/10/2012 1:49 PM, Mark Rivers wrote:
> Folks,
>
> All versions of the EPICS Record Reference Manual from 3.13 to 3.14.12.2 document the following 2 fields in the waveform record:
>
> RATE Sampling Rate       Some device support modules may find this useful.
> PTSS Pre-trigger Samples Some device support modules may find this useful.
>
> I really need to use these 2 fields in some new asyn device support I am writing.  (This device support will allow me to remove the dependence of areaDetector on mca).
>
> But these fields do not actually exist in the waveform record, at least for any version of base from 3.14.8.2 to 3.14.12.2!
>
> I cannot find anything in the 3.13 or 3.14 release notes that mentions removing these fields.
>
> Questions:
>
> - Did these fields ever exist?
>
> - Should they be added?
>
> - If so, then while we are adding these fields are there others we should also add that would not break backward compatibility?
>
> Here are is one that I can think of:
>
> NUSE: The number of elements in the waveform to actually use.  Must be<=NELM.
>
> Also, the record does not post monitors on the BUSY or NORD fields.  Should this be the responsibility of device support, or does that code belong in the record?
>
> Thanks,
> Mark