Experimental Physics and
Industrial Control System

Michael Davidsaver <[email protected]> · Fri, 10 Feb 2012 14:27:17 -0500

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

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System