OpenModelica-Arduino

Free library for interfacing Arduino using Modelica and Modelica_DeviceDrivers models in Linux. There is support for serial port.

Library description

The OpenModelica-Arduino library is an open source Modelica package for simulating circuit designs involving Arduino platforms based on AVR Atmega328P MCUs.

Main features:

• Support for Linux.
• (Soft) real-time synchronization of a simulation.

Please note that the library is known to work with

• OpenModelica (partial support starting with OpenModelica v1.11.0, e.g.serial port).

Prerequisites

• OpenModelica (>= v1.11.0) (https://www.openmodelica.org/download/download-linux)
• Modelica_DeviceDrivers (v1.5.1) (https://github.com/modelica/Modelica_DeviceDrivers/releases/tag/v1.5.1)

Compile and Install

• Compile: Navigate to Library directory under Resources and to compile a source file named filename.c execute the following command

$ gcc –c –Wall –fPIC ../src/filename.c

To make a shared object file named libSerialComm.so execute the following

$ gcc –shared –fPIC *.o -o libSerialComm.so

• Install and Run: Launch OMEdit and load the package Modelica_DeviceDrivers.Also, load the OpenModelica-Arduino package present in Arduino.mo file.Load the Arduino platform with the arduino_firmware.ino code.Create any model using the package and simulate.

Running Test Firmware

Test the package using test firmware provided.

• Load the Arduino platform with the arduino_firmware.ino code.
• Load the test model present in testfirmware.mo file along with Arduino.mo file in OpenModelica.
• Simulate the model.If no error occurs,the package is good to go.

Running MDD Models

See the AVR package documentation under Modelica_DeviceDrivers -> EmbeddedTargets -> AVR in OMEdit before running the MDD examples.

• To run a Modelica_DeviceDrivers Blink example, navigate to MDD_build/Blink directory and execute the following command

$ ./blink.sh [port_no] [baudrate]

• Running Manually: Executing Blink example within Modelica_DeviceDrivers EmbeddedTargets Package:- Put the runMDDAvr.mos file in a (build) directory and execute following commands on the command line:

$ omc --simCodeTarget=ExperimentalEmbeddedC runMDDAvr.mos
$ avr-gcc -Os -std=c11 -ffunction-sections -fdata-sections -mmcu=atmega328p -DF_CPU=16000000UL -Wl,--gc-sections Blink_main.c -o Blink -I /path_to_MDD/Modelica_DeviceDrivers/Resources/Include -I /usr/include/omc/c
$ avr-objcopy -O ihex -R .eeprom Blink Blink.hex
$ avrdude -F -V -c arduino -p ATMEGA328P -P /dev/ttyACM0 -b 115200 -U flash:w:Blink.hex

For further information: Visit https://build.openmodelica.org/Documentation/Modelica_DeviceDrivers.html.

Development and contribution

Main developers:

• Souradip Pal, contribution to the Linux specific code
• Vanessa Singh, bug fixes.
• Disha Agarwal, various documentation.

Contributions in shape of [Pull Requests] are always welcome.

The following people have directly contributed to the implementation of the library (many more have contributed by providing feedback and suggestions):

• Manas Ranjan Das (project mentor), contribution in bug fixes,error removal etc.