Experimental Physics and
Industrial Control System

Hi, I'm trying to set up EPICS support for a GPIB device with the asyn module - my device is a Hewlett Packard 83620B Synthesized Sweeper and I'm using a Prologix GPIB-Ethernet adaptor. I've followed the steps in this tutorial (http://www.aps.anl.gov/epics/modules/soft/asyn/R4-12/HowToDoSerial/tutorial.pdf) to set up the device support files and ioc; I can successfully write values to the device and the identity command works, but whenever I try to read values EPICS returns a " read status "" nin 0 " error.

I suspect this is a end-of-string issue but from what I can tell, the Prologix driver I'm using doesn't support the " asynOctetSetInputEos("L0",-1,"\n") " command. Does anyone have any other ideas for workarounds I might try?  Thanks! - Ana

Code below from st.cmd:

#!../../bin/linux-x86_64/SdCarLO

## You may have to change SdCarLO to something else

## everywhere it appears in this file

< envPaths

epicsEnvSet("ARCH","linux-x86_64")

epicsEnvSet("IOC","iocSdCarLO")

epicsEnvSet("TOP","/home/admx/admxepics/iocs/SdCarLO")

epicsEnvSet("ASYN","/home/admx/epics/asyn4-22")

epicsEnvSet("PROLOGIXGPIB","/home/admx/admxepics/devices/PrologixGPIB")

epicsEnvSet("SDCARLO","/home/admx/admxepics/devices/ag83620b")

epicsEnvSet("EPICS_BASE","/home/admx/epics/base-3.14.12.4")

## Register all support components

dbLoadDatabase "dbd/SdCarLO.dbd"

SdCarLO_registerRecordDeviceDriver pdbbase

prologixGPIBConfigure("L0", "10.95.101.74:1234")

##asynOctetSetInputEos("L0",-1,"\n")

##asynOctetSetOutputEos("L0",-1,"\n")

asynSetTraceIOMask("L0", -1, 0x2)

asynSetTraceMask("L0", -1, 0x9)

## Load record instances

cd /home/admx/admxepics/devices/ag83620b

dbLoadRecords("db/devAG83620B.db","SIGGEN=SDCARLO, L=0, A=19")

cd /home/admx/admxepics/iocs/SdCarLO/iocBoot/iocSdCarLO

iocInit

############################################################################

## EPICS R3.14.12.4 $Date: Mon 2013-12-16 15:51:45 -0600$

## EPICS Base built May 20 2014

############################################################################

## Start any sequence programs

#seq sncxxx,"user=admxHost"

epics> 2014/12/10 09:40:06.444 SDCARLO:GET:FREQ read status "" nin 0

2014/12/10 09:40:06.444 SDCARLO:GET:FREQ error.