EPICS serial communication with Arduino: creation of project, protocol file, database...

setup-epics-serial-arduino

#!/bin/bash

# All code from: http://www.smolloy.com/2015/12/epics-serial-communication-with-arduino/

# Create a new project
echo "Creating new project"
mkdir ~/Apps/epics/helloWorldIOC
cd ~/Apps/epics/helloWorldIOC
makeBaseApp.pl -t ioc helloWorldIOC
echo | makeBaseApp.pl -i -t ioc helloWorldIOC
echo "ASYN=/usr/local/epics/modules/asyn" >> configure/RELEASE
echo "STREAM=/usr/local/epics/modules/stream" >> configure/RELEASE

# Create the Protocol file
echo "Creating the Protocol file"
cat <<EOF >> ~/Apps/epics/helloWorldIOC/helloWorldIOCApp/Db/arduino.proto
Terminator = LF;
get_analog {
    out "R";
    in "R %f";
    ExtraInput = Ignore;
}
set_digital {
    out "W%d\n";
    ExtraInput = Ignore;
}
EOF

# Create the database file
cat <<EOF >> ~/Apps/epics/helloWorldIOC/helloWorldIOCApp/Db/arduino.db
record(ao, led:set) {
    field(DESC, "Arduino digi pin 11")
    field(DTYP, "stream")
    field(OUT, "@arduino.proto set_digital() $(PORT)")
    field(DRVL, "0")
    field(DRVH, "255")
}
record(ai, photo:get) {
    field(DESC, "Photo diode's output")
    field(DTYP, "stream")
    field(INP, "@arduino.proto get_analog() $(PORT)")
    field(SCAN, ".5 second")
}
EOF

#Environment preparation
echo "Preparing the environment"
cd ~/Apps/epics/helloWorldIOC/helloWorldIOCApp/Db
sed '/#DB += /a\
DB += arduino.db' Makefile

cd ~/ Apps/epics/helloWorldIOC/helloWorldIOCApp/src
sed -i '/helloWorldIOC_DBD += base.dbd/a\
helloWorldIOC_DBD += asyn.dbd
helloWorldIOC_DBD += stream.dbd
helloWorldIOC_DBD += drvAsynIPPort.dbd
helloWorldIOC_DBD += drvAsynSerialPort.dbd' Makefile
sed -i '/hellowWorldIOC_LIBS/a\
helloWorldIOC_LIBS += asyn
helloWorldIOC_LIBS += stream' Makefile

cd ~/Apps/epics/helloWorldIOC/iocBoot/iochelloWorldIOC
sed -i '/> envPaths/a\
epicsEnvSet(STREAM_PROTOCOL_PATH,"helloWorldIOCApp/Db")' st.cmd
sed -i '/helloWorldIOC_registerRecordDeviceDriver pdbbase/a\
drvAsynSerialPortConfigure("SERIALPORT","/dev/ttyACM0",0,0,0)
asynSetOption("SERIALPORT",-1,"baud","115200")
asynSetOption("SERIALPORT",-1,"bits","8")
asynSetOption("SERIALPORT",-1,"parity","none")
asynSetOption("SERIALPORT",-1,"stop","1")
asynSetOption("SERIALPORT",-1,"clocal","Y")
asynSetOption("SERIALPORT",-1,"crtscts","N")
dbLoadRecords("db/arduino.db","PORT='SERIALPORT'")' st.cmd
sed -i -e 's/\$(TOP)/\/home\/pi\/Apps\/epics\/helloWorldIOC/g' st.cmd
sed -i -e 's/\$(IOC)/iochelloWorldIOC/g' st.cmd

# Compile
echo "Compiling the new project"
cd ~/Apps/epics/helloWorldIOC
make

# Start the IOC
echo "Starting the IOC"
./bin/linux-arm/helloWorldIOC iocBoot/iochelloWorldIOC/st.cmd

Sorry @Udir2399 all I can do is point you to the original source:
https://web.archive.org/web/20180418062647/http://www.smolloy.com/2015/12/control-arduino-via-epics-ioc-on-a-raspberry-pi/
https://web.archive.org/web/20180417224955/http://www.smolloy.com/2015/12/serial-control-of-an-arduino/
https://web.archive.org/web/20180418062703/http://www.smolloy.com/2015/12/epics-ioc-on-a-raspberry-pi/
https://web.archive.org/web/20180417224946/http://www.smolloy.com/2015/12/epics-serial-communication-with-arduino/

Thanks a lot brother, this will actually help a lot.

Hey bro, I'm getting error in the arduino.proto files as defined, can you help me with it, i followed the exact same steps as mentioned in the links

Hey Udit2399,
I haven't touched EPICS for many years now, so I really don't know how to help.
One thing I noticed is that in the old instructions the EPICS version used was 3.14, and you are using version 7. Maybe StreamDevice works differently now?
The best place for EPICS questions is the mailing list: https://epics.anl.gov/tech-talk/index.php
Good luck,
Iñigo

Hi @Udit2399!

Can you place the following file in helloWorldIOC/helloWorldIOCApp/Db and see if it works?