Project Setup

Makefile

:default:
    avr-gcc -Os -DF_CPU=16000000UL -mmcu=atmega328p -nostdinc -ffreestanding -isystem/usr/avr/include -c -o main.o main.c
    avr-gcc -o main.bin main.o
    avr-objcopy -O ihex -R .eeprom main.bin main.hex
    sudo avrdude -F -V -c arduino -p ATMEGA328P -P /dev/ttyUSB0 -b 115200 -U flash:w:main.hex

LSP

Enable LSP by generating compiledb as follows:

compiledb make

Resources

• Getting Started with Baremetal Arduino C Programming | No IDE Required [Linux SDK]