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# OpenModelica_Arduino_With_MDD on Linux (Ubuntu 16.04 onwards)
Embedded Experiments with OpenModelica and Arduino with facility for Embedded C code generation
Free & Open Source library for based on OpenModelica to perform Embedded Experiments with Arduino.Also, there is a facility to generate Embedded C code by using Modelica_DeviceDrivers models.
Library description
The library is an open source Modelica package for rael-time simulation of 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:
Manas Ranjan Das, FOSSSEE, IIT-Bombay
Contributions in shape of [Pull Requests] are always welcome.
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