Experimental Physics and Industrial Control System
Subject: |
Problems w/ VxWorks Global Variable Device Records |
From: |
Susanna Jacobson <[email protected]> |
To: |
EPICS tech-talk <[email protected]> |
Date: |
Wed, 26 May 2004 18:12:43 -0700 |
I am working with EPICS base R3.13.4 on a vxWorks IOC (PowerPC mcp750,
VxWorks 5.4).
Something very odd happens when I try to use the three records in the
attached .db file on the IOC. Each record initializes successfully
and works correctly if it is the only one of the 3 that is loaded
(say, by commenting out the other two). The ai record,
SR$(s)S___BPMCLK_AM00, always works OK, even in combination with either
of or both the other two records.
If I load all 3 records, no matter in what order, the ao and bi records
fail at iocInit with the messages:
filename="../recGbl.c" line number=105
Illegal field value PV: SR07S___BPMCLK_AC00 \
devAoSymb (init_record) Illegal NAME or OUT field
filename="../recGbl.c" line number=105
Bad init_rec return value PV: SR07S___BPMCLK_AC00 ao: init_record
filename="../recGbl.c" line number=105
Illegal field value PV: SR07S___BPMCLK_BM00 \
devBiSymb (init_record) Illegal NAME or INP field
iocInit: Database Failed during Initialization
If I load only the ao and bi records, then the ao record init succeeds,
but the bi record fails. If I load either along with the ai record,
only the ai record succeeds. Again, load order makes no difference.
Has anyone else had this problem? Can anyone tell me why these records
play alone OK but not together? Is a remedy available?
Susanna
--
=====================================================================
Susanna Jacobson MS 10-110
[email protected] Lawrence Berkeley National Laboratory
VOICE: (510) 486-7801 1 Cyclotron Road
FAX: (510) 486-7374 Berkeley, CA 94720
=====================================================================
record(ao,"SR$(s)S___BPMCLK_AC00") {
field(DESC,"SET EXT BPM CLK FREQ")
field(DTYP,"vxWorks Variable")
field(OUT,"@bpmClkSetFrq")
field(PREC,"2")
field(EGU,"HZ")
}
record(ai,"SR$(s)S___BPMCLK_AM00") {
field(DESC,"EXT BPM CLK ACTUAL FREQ")
field(DTYP,"vxWorks Variable")
field(INP,"@bpmClkActual")
field(PREC,"2")
field(EGU,"HZ")
}
record(bi,"SR$(s)S___BPMCLK_BM00") {
field(DESC,"EXT BPM CLK ENABLED STATE")
field(DTYP,"vxWorks Variable")
field(INP,"@bpmClkEnabld")
field(ZNAM,"DISABLED")
field(ONAM,"ENABLED")
}
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