Is there some initialization of your Opto22 device support that might not have happened yet when records with PINI=1 process? How and when does any initialization occur?
Mark
________________________________
From: [email protected] on behalf of John Dobbins
Sent: Sun 4/11/2010 7:06 PM
To: EPICS Tech-Talk
Subject: device support PINI problem
All,
I have a puzzle that I'm not sure where to begin with. I've written
device support for Opto22 remote I/O based on Opto22 provided libraries.
I have been using it for a few years without trouble until the other day
I set PINI = 1 on an output record. It turns out I haven't needed to do
this before. The the record got stuck in a funny state with UDF = 1, if
I subsequently write to the record the new value appears there but not
in hardware. Also, these output records do a read from remote hardware
during record init so I'm surprised that I should have a problem later,
i.e. during initialProcess(). If PINI is not set I can write to the
record and hardware without problem. Any ideas where to begin?
Thanks,
John Dobbins
Cornell Laboratory for Accelerator-based Science and Education
- Replies:
- Re: device support PINI problem John Dobbins
- References:
- device support PINI problem John Dobbins
- Navigate by Date:
- Prev:
device support PINI problem John Dobbins
- Next:
Re: device support PINI problem John Dobbins
- Index:
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
<2010>
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
- Navigate by Thread:
- Prev:
device support PINI problem John Dobbins
- Next:
Re: device support PINI problem John Dobbins
- Index:
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
<2010>
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
|