germancq / EdC

AVR assembler on PlatformIO

1. Install visual studio code
2. Install PlatformIO plugin
3. Add our user to dialout group

username@cpu:~$ sudo usermod -a -G dialout <username>

4. Create in PlatformIO a project with
   1. Board : ATmega328P/PA
   2. framework : Arduino
5. In the file Platformio.ini
   1. Delete the framework line. In order to use avr-gcc as compiler
   2. add the follow line to the file debug_tool = simavr
6. Close vscode
7. Go to the PlatformIO path. If you are already crate the project you will see the atmelavr folder

username@cpu:~$ cd ~/.platformio/platforms/atmelavr

8. Create the path ~/.platformio/platforms/atmelavr/misc/svd

username@cpu:~/.platformio/platforms/atmelavr$ mkdir misc
username@cpu:~/.platformio/platforms/atmelavr$ cd misc
username@cpu:~/.platformio/platforms/atmelavr/misc$ mkdir svd

9. Copy the file atmega328p.svd into the svd folder

username@cpu:~$ cp <path_to_this_repo>/atmega328p.svd ~/.platformio/platforms/atmelavr/misc/svd

10. Change the file "~/.platformio/platforms/atmelavr/boards/ATmega328P.json" for the one given in this repository

username@cpu:~$ rm ~/.platformio/platforms/atmelavr/boards/ATmega328P.json
username@cpu:~$ cp <path_to_this_repo>/ATmega328P.json ~/.platformio/platforms/atmelavr/boards/

11. Open vscode and change "src/main.cpp" to "src/main.S"
12. Modify main.S with your assembler code. you can use the examples in this repository as a template