AVR Simulation

Introduction

This is a simple starting point to write AVR code on avr-gcc and simulate it using Simulide. This simple example is based on the Blinking LED example for the Atmega328P. The reason for this is to create a simple, modern, minimal IDE like exprience on Linux (neovim) without any fancy closed source software like Atmel Studio.

Structure

• src/ contains the source code for the simulation.
• CmakePresets.json contains the cmake presets for the gcc-avr toolchain.
• build/AVR contains the build files for the simulation.

Demo

Here's a video of the simulation in action.

Requirements

Arch Linux

The quick and dirty way

sudo pacman -S cmake avr-gcc avrdude avr-libc libusb

yay -S simulide

Other distros

Install Simulide (I suggest building from source) and avr-gcc using your package manager.

Windows

I mean, you can use Windows, but why would you?

• avr-gcc

  Download and install avr-gcc from here.

• Simulide

  Download and install Simulide from here.

Usage

Run the following to configure the cmake presets for the AVR toolchain.

cmake --preset AVR

The custom cmake compiler for Simulide is cmake_avrgcc.xml you can symlink/copy it to the default custom compiler location at /usr/share/simulide/data/codeeditor/compilers/compilers.

sudo ln -s cmake_avrgcc.xml /usr/share/simulide/data/codeeditor/compilers/compilers

Now, drag and drop the simulation file blink.sim1 to the Simulide editor.

That's it, now you can just drag and drop the source file from src/ to the Simulide editor and compile it using the cmake_avrgcc compiler and upload the hex file to the simulation.

You can run the following to flash the hex file to an actual AVR device through the USB port.

cmake --build --preset flash-blink

License

This project is licensed under the MIT License - see the LICENSE file for details.