https://github.com/lexus2k/avrsim

AVR Simulator to run Atmel code on desktop pc
https://github.com/lexus2k/avrsim

arduino atmel attiny85 avr-simulator simulator

Last synced: 8 months ago
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AVR Simulator to run Atmel code on desktop pc

• Host: GitHub
• URL: https://github.com/lexus2k/avrsim
• Owner: lexus2k
• License: gpl-3.0
• Created: 2017-04-25T09:58:16.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2017-10-02T12:03:11.000Z (over 8 years ago)
• Last Synced: 2025-02-28T19:38:27.390Z (over 1 year ago)
• Topics: arduino, atmel, attiny85, avr-simulator, simulator
• Language: C++
• Size: 566 KB
• Stars: 14
• Watchers: 4
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: COPYING

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README

          
# AVR Simulator

This is simulator for AVR controllers.

It supports partially Attiny85, and is provided as is.

OS: Linux

1. Introduction

AVR simulator was created to run some avr code on the pc to simplify AVR code debugging.

It is simulator and NOT emulator. That is:

 * you run your program on the different CPU (x86), not Atmel;

 * interrupts do not actually interrupt main program (They work in parallel to main thread);

 * signals are not emulated as they are in real life.

 * To let native AVR code to be compiled for desktop Linux, simulator engine uses C++ operators overloading. So, pure C code is compiled as C++ code (please, refer to Makefile).

Feel free, if you need to do any changes to simulator code.

2. Supported MCUs

 * Attiny85 (partially), any updates are welcome.

 

3. Supported OS

 * Linux

For Windows, you can try to use MinGW. Native MSVC compiler is not supported as it doesn't have "weak" implementation, gcc does have.

4. Sources structure

 * emu          - Emulator engine files

   * emu/alt_arduino - alternate implementation of Arduino includes

   * emu/arduino     - original Arduino includes (or with minimal rework)

   * emu/alt_gcc     - alternate implementation of AVR gcc includes

   * emu/gcc         - original AVR gcc includes (or with minimal rework) - look for [avrsim] tag)

   * emu/core        - Simulator core, implementing main Arduino/AVR functions for Desktop Linux

   * emu/mcu         - cpu specific files (implementation for uC)

 * modules  - Modules to connect to your mcu configuration: display, buttons

   * modules/ssd1306 module - emulates 128x64 ssd1306 OLED LCD display

   * modules/button module  - emulates digital button for AVR

 * boards       - contains hardware board description in C++ for each project

 * projects     - contains original project sources

 * libraries    - contains libraries used by the projects

5. Usage

 SDL2 is required to be installed in the system, you're working in.

 To run demo (arkanoid breakout game is used as default example):

 * make run

 To run lode runner demo:

 * make PROJECT=lode_runner run

 If you want to place your project:

 * put all libs, projects requires to libraries

 * put your project files to projects/ folder

 * create board configuration for your project: boards/.cpp.

    refer to arkanoid.ino as example.

 * run: make PROJECT= LIBRARIES= run

Important! Don't forget to execute git commands after cloning AVRSIM project:

 * git submodule init

 * git submodule update

That's it