Laurence:
I find it much more convenient to use streamDevice in conjunction with
asyn for communicating with GPIB devices. Linux-gpib with asyn and
streamDevice is the standard model used at TRIUMF for all GPIB
communications in EPICS.
Like any communications channel used by asyn, the startup script must
configure the port driver. In your case it would be the GPIB driver. The
details for setup of the linux-GPIB port driver are outlined in
'documentation/asynDriver.html#PortDrivers'
included in the asyn package.
Rod Nussbaumer
ISAC Controls, TRIUMF
Vancouver, Canada
Feng Laurence wrote:
Hi everyone~
I'm trying to connect a scope via linux-GPIB. The driver had been
setup and read/write to the scope was successfully tested with
"ibtest"
But when typing in iocsh the command
GpibBoardDriverConfig("L2",1,0,3,0)
I got the error:
2011/03/14 21:48:44.176 L2 addr -1 : EDVR 0: OS error.
2011/03/14 21:48:44.176 L2 addr -1 : EDVR 0: OS error.
........
libgpib: invalid descriptor
libgpib: invalid descriptor
libgpib: invalid descriptor
........ alot of repeat lines.......
Looks like the GPIB device address was not set correctly. However, I
can find no hints in the asyn document for the problem. Is there
anything I missed here?
--
Laurence Feng
Superconducting Radio Frequency Group
State Key Laboratory of Nuclear Physics and Technology
Peking University, 302 Chengfu Road
Beijing 100871 China
- Replies:
- Re: How to use asyn with linux-GPIB Eric Norum
- Re: How to use asyn with linux-GPIB Feng Laurence
- Re: How to use asyn with linux-GPIB Feng Laurence
- References:
- How to use asyn with linux-GPIB Feng Laurence
- How to use asyn with linux-GPIB Feng Laurence
- Navigate by Date:
- Prev:
'Feature' of subArray record graham.cox
- Next:
Re: 'Feature' of subArray record Tim Mooney
- 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:
How to use asyn with linux-GPIB Feng Laurence
- Next:
Re: How to use asyn with linux-GPIB Eric Norum
- 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
|