Experimental Physics and
Industrial Control System

"Liyu, Andrei" <[email protected]> · Tue, 06 Jul 2004 09:22:14 -0400

Hello,

	I see my name here.
	My goal was a little another. I checked performance of record
processing in my problem. It is like that record processing is slow.

Thanks, Andrei.

-----Original Message-----
From: Gasper Pajor [mailto:[email protected]] 
Sent: Tuesday, July 06, 2004 8:42 AM
To: '[email protected]'
Subject: Re: initializing a waveform record

Hello Mark, Steve

We came across the same problem - filling the waveform with static data 
- and  the best solution we found so far is the use of state notation 
language.

Here is an example code for what we do :

double arr[100];
assign arr to "CURVES:SINE";
%% int i;

........
........
       state init
       {
          when()

{

            %%  for(i=0;i<100;i++) arr[i] = sin(0.1*i);
            %%  j=0;
            pvPut(arr);
          } state somethingelse
       }

........
........

We use sequencer and 2.0.8 and epics base 3.14.x.
Hope this helps,

Gasper Pajor,
Cosylab

Singleton, SJ (Steve) wrote:

> Hello Mark
>
> I use EPICS subroutine (SUB) records to initialise waveform records,
with
> the attached code.  Because of the limitation on the number of 
> arguments to
> a SUB record it is only possible to initialise up to nine elements of
the
> array from one SUB record.  The arguments of the SUB record are as 
> follows:
>
> INPA - the waveform record
> INPB - the index number of the first waveform element to be set up by 
> this
> SUB record.
> INPC - the number of elements to be initialised by the SUB record, in
the
> range 1 - 9.
> INPD to INPL - the values to which the elements are to be set.
>
> Hope this helps.
>
> Regards
> Steve Singleton
>
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Mark M. Ito
> Sent: 04 July 2004 02:14
> To: [email protected]
> Subject: initializing a waveform record
>
>
> What is there a standard way to initialize the values of a waveform 
> record?
>
> I saw Andrei Liyu's post from this past Apr. 8. He seems to imply that

> the standard is to call dbPutField. Does one write a VxWorks 
> subroutine to make this call and load the array?
>
> The array is of floats, and will be about 100 elements long. The 
> values are static; they never change.
>
> I also looked at the waveform record description in the Record 
> Reference Manual. That did not help me given my lack of basic 
> understanding of this stuff.
>
> I also skimmed the contents of the Application Developer's Guide. No 
> help for me there either.
>
>  
>

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System