Experimental Physics and
Industrial Control System

Eric Norum <[email protected]> · Tue, 4 Oct 2011 09:07:57 -0700

Having SCAN="I/O Intr" is somewhat unusual for output records.   Are you sure this is what you want?  I ask this because it is the reason that you don't see the record process when you write to it -- 'process on write' occurs only if SCAN="Passive".

On Oct 4, 2011, at 6:20 AM, PELLE Sébastien wrote:

> Hello,
> 
> I am currently writing an EPICS device support using the asyn framework.
> 
> I have an issue : when writing the PV, It does not fall into the write function whereas the write function is called during iocInit (PINI = 1).
> 
> Here is my record (I have some other like this) :
> 
> record(bo, "$(P)$(R)boDevice_Status_ColdReset")
> {
>    field(PINI, "1")
>    field(DTYP, "asynUInt32Digital")
>    field(OUT,  "@asynMask($(PORT),$(ADDRESS),0x00000001,$(TIMEOUT))BODEVICE_STATUS_COLDRESET")
>    field(SCAN, "I/O Intr")
>    field(ONAM, "Device Cold Reset")
>    field(ZNAM, "Nothing will happen")
> }
> 
> When writing to it (dbpf <portName>: boDevice_Status_ColdReset 1) the my writeUInt32Digital is not called. No idea why.
> 
> I tried with the SCAN field = 1 second : the write function is called every second. However, this is not the behavior I want.
> 
> Does anyone have any idea why this write function is not called ?
> 
> Thanks a lot,
> 
> Best Regards,
> Sébastien PELLÉ
> Tel : +33 (0)4 76 61 87 09
> Fax : +33 (0)4 76 41 47 47
> [email protected]
> 36, chemin du vieux chêne
> BP 104
> 38243 Meylan Cedex
> 
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-- 
Eric Norum
[email protected]

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System