Experimental Physics and
Industrial Control System

Mark Rivers <[email protected]> · Thu, 31 May 2018 17:08:36 +0000

Just to be clear your record should be:

record(waveform, $(P)$(R)$(I):DelayTimeA) {
	field (DESC,	"Delay of channel A")
	field (DTYP,	"asynInt32ArrayOut")
	field (INP,	"@asyn($(PORT), 0, 100) DELAYTIMEA")
	field (FTVL, 	"LONG")
	field (NELM, 	"256")
}

I changed OUT to INP and asnyInt32ArrayOut to asynInt32ArrayOut.

Mark

-----Original Message-----
From: Jörn Dreyer [mailto:[email protected]] 
Sent: Thursday, May 31, 2018 8:28 AM
To: [email protected]
Cc: Mark Rivers <[email protected]>; [email protected]
Subject: Re: Transfering array of 256 elements to driver

Hi Mark and Michael,

her is how I configured the waveform record:

record(waveform, $(P)$(R)$(I):DelayTimeA) {
	field (DESC,	"Delay of channel A")
	field (DTYP,	"asnyInt32ArrayOut")
	field (OUT,		"@asyn($(PORT), 0, 100) DELAYTIMEA")
	field (FTVL, 	"LONG")
	field (NELM, 	"256")
}

At IOC startup I get the following error message:

>Can't set "XXX:Test1:DelayTimeA.DTYP" to "asnyInt32ArrayOut"
>Error at or before ")" in file "db/Delay.db" line 355 Record 
>"XXX:Test1:DelayTimeA" does not have a field "OUT"

This somehow contradicts the information. And the record reference manual defines also onle the INP field for the waveform record.

Regards,

Jörn

Am Donnerstag, 31. Mai 2018, 15:01:35 CEST schrieb Mark Rivers:
> Hi Jörn
> 
> > The waveform record supports only INP direction.
> 
> The devAsynInt32Array.dbd file defines both input and output.
> 
> 
> corvette:asyn/asyn/devEpics>more devAsynInt32Array.dbd
> device(waveform,INST_IO,asynInt32ArrayWfIn,"asynInt32ArrayIn")
> device(waveform,INST_IO,asynInt32ArrayWfOut,"asynInt32ArrayOut")
> 
> Your waveform record would use DTYP="asynInt32ArrayOut".
> 
> 
> Mark
> 
> 
> 
> ________________________________
> From: [email protected] <[email protected]> on 
> behalf of [email protected] <[email protected]> Sent:
> Thursday, May 31, 2018 7:54 AM
> To: 'Jörn Dreyer'; [email protected]
> Subject: RE: Transfering array of 256 elements to driver
> 
> From: [email protected] 
> [mailto:[email protected]]
> 
> > I'm working on a driver that needs to set 256 values into one 
> > hardware register. What type of database record should I use for this purpose?
> > 
> > The waveform record supports only INP direction.
> 
> In fact this is not so: you can write in either direction when 
> processing the record, it's up to the device driver to decide whether 
> to push or pull waveform data, so the waveform record will be what you need.
> 
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--
Dr. Joern Dreyer
HIBEF DAQ + Controls
Institut für Strahlenphysik
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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System