1. HOW TO
2. Command
listcomports.exe
Tool from arduino.
It helps you to list available COM ports in system.
No need to open device manager to check.
avr-gcc.exe
The entrypoint of AVR GCC.
avr-gcc -g -Os -mmcu=atmega328p -c file.c --> Produce file.o
avr-gcc -g -mmcu=atmega328p -o file.elf file.o --> Product file.elf
avr-ld.exe
Linker.
Indirectly invoked by avr-gcc.exe.
No recommand to use it direcly. It will crash.
avr-objcopy.exe
Dumps sections in ELF file and combines them together.
avr-objcopy -j .text -j .data -O ihex file.elf file.hex --> Product file.hex which contains text & data sections.
avrdude.exe
Upload file to arduino.
avrdude -p atmega328p -c arduino -b 115200 -P com4 -U flash:w:file.hex