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<== Date ==> <== Thread ==>
Subject: Re: using stream -calcout
From: "Mooney, Tim M." <[email protected]>
To: l123173 <[email protected]>, tech-talk <[email protected]>
Date: Fri, 16 Feb 2018 11:29:20 +0000

The first thing is to change record(scalcout,"TEM")  to record(calcout,"TEM") and see how that works.  The scalcout record is not in base, but in the synApps calc module.


Tim Mooney ([email protected]) (630)252-5417
Beamline Controls Group (www.aps.anl.gov)
Advanced Photon Source, Argonne National Lab

From: [email protected] <[email protected]> on behalf of l123173 <[email protected]>
Sent: Friday, February 16, 2018 4:27:55 AM
To: tech-talk
Subject: using stream -calcout
 
Hi all,
     I have a simple question about stream. 
     The device was connected with LAN. If sending " fe 04 00 00 00 01 25 c5 " in Hex,  getting  " fe 04 02 04 08 ae 22 " in Hex. 
     Among the getting bytes（ " fe 04 02 04 08 ae 22 "）, 04 08 was I wanted. Convert  0408(HEX) to decimal was 1032 (4*16**2 +8=1032), and 1032 was the finall result I wanted.
     
    In my programe, I have successfully sent and got the bytes. But I could not get the 1032, I want to achieve it using scalcout, but failed.
    Could you please give me some suggestion.
    
    The environment I use, base3.14.12.7, synapps_5_8, fedora 27(64). 

my db file:
--------------------------------------------
record(stringin, "GET_HIGH")  
{
    field(DESC, "test for upstairs tcpip")
    field(DTYP, "stream")
    field(INP,  "@devtemp.proto get_high $(PORT) $(A)")
}

record(stringin, "GET_LOW")
{
    field(DTYP, "stream")
    field(INP,  "@devtemp.proto get_low $(PORT) $(A)")
    field(SCAN, "I/O Intr")
}

record(scalcout, "TEM")
{
    field(DESC, "get the temperature")
    field(DTYP, "stream")
    field(INPA, "GET_HIGH")
    field(INPB, "GET_LOW")
    field(CALC, "A*16*16 + B")
}


my proto file:
-------------------------------------------------------
get_high {
   out "\xFE\x04\x00\x00\x00\x01\x25\xC5";
   in "%*c%*c%*c%*c%*c%*c%c%c%*c%*c%*c%*c%*c%*c"; 
#   in "%s";
}

get_low {
   in "%*c%*c%*c%*c%*c%*c%*c%*c%c%c%*c%*c%*c%*c";
}
 


output of  st.cmd: (there is an error "Record "TEM" is of unknown type "scalcout" )
------------------------------------
#!../../bin/linux-x86_64/temp
## You may have to change temp to something else
## everywhere it appears in this file
< envPaths
epicsEnvSet("ARCH","linux-x86_64")
epicsEnvSet("IOC","ioctemp")
epicsEnvSet("TOP","/home/lyx/tem_setup_with_asyn_scpi")
epicsEnvSet("EPICS_BASE","/opt/epics/base")
epicsEnvSet("ASYN","/opt/epics/synApps_5_8/support/asyn-4-26")
epicsEnvSet("STREAM","/opt/epics/synApps_5_8/support/stream-2-6a")
epicsEnvSet "STREAM_PROTOCOL_PATH"  "/home/lyx/tem_setup_with_asyn_scpi/db"
epicsEnvSet "P" "P"
epicsEnvSet "R" "T"
cd "/home/lyx/tem_setup_with_asyn_scpi"
## Register all support components
dbLoadDatabase "dbd/temp.dbd"
temp_registerRecordDeviceDriver pdbbase
drvAsynIPPortConfigure("L0","192.168.215.120:10000",0,0,0)
asynSetTraceIOMask("L0",-1,0x2)
asynSetTraceMask("L0",-1,0x9)
## Load record instances
dbLoadRecords("/home/lyx/tem_setup_with_asyn_scpi/db/devtemp.db","P=P,R=T,PORT=L0,A=0,user=lyxHost")
Record "TEM" is of unknown type "scalcout"
Error at or before ")" in file "/home/lyx/tem_setup_with_asyn_scpi/db/devtemp.db" line 25
cd "/home/lyx/tem_setup_with_asyn_scpi/iocBoot/ioctemp"
iocInit
Starting iocInit
############################################################################
## EPICS R3.14.12.7
## EPICS Base built Feb  7 2018
############################################################################

Regards,
Li xing


 

References:
using stream -calcout l123173
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