Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
AVR Tutorial Makefile
# Name: Makefile
# Author: <insert your name here>
# Copyright: <insert your copyright message here>
# License: <insert your license reference here>
# DEVICE ....... The AVR device you compile for
# CLOCK ........ Target AVR clock rate in Hertz
# OBJECTS ...... The object files created from your source files. This list is
# usually the same as the list of source files with suffix ".o".
# PROGRAMMER ... Options to avrdude which define the hardware you use for
# uploading to the AVR and the interface where this hardware
# is connected.
# FUSES ........ Parameters for avrdude to flash the fuses appropriately.
DEVICE = attiny2313
CLOCK = 8000000
PROGRAMMER = -c arduino -P /dev/tty.usb* -b 19200
OBJECTS = main.o
FUSES = -U lfuse:w:0x64:m -U hfuse:w:0xdd:m -U efuse:w:0xff:m
######################################################################
######################################################################
# Tune the lines below only if you know what you are doing:
AVRDUDE = avrdude $(PROGRAMMER) -p $(DEVICE)
COMPILE = avr-gcc -Wall -Os -DF_CPU=$(CLOCK) -mmcu=$(DEVICE)
# symbolic targets:
all: main.hex
.c.o:
$(COMPILE) -c $< -o $@
.S.o:
$(COMPILE) -x assembler-with-cpp -c $< -o $@
# "-x assembler-with-cpp" should not be necessary since this is the default
# file type for the .S (with capital S) extension. However, upper case
# characters are not always preserved on Windows. To ensure WinAVR
# compatibility define the file type manually.
.c.s:
$(COMPILE) -S $< -o $@
flash: all
$(AVRDUDE) -U flash:w:main.hex:i
fuse:
$(AVRDUDE) $(FUSES)
install: flash fuse
# if you use a bootloader, change the command below appropriately:
load: all
bootloadHID main.hex
clean:
rm -f main.hex main.elf $(OBJECTS)
# file targets:
main.elf: $(OBJECTS)
$(COMPILE) -o main.elf $(OBJECTS)
main.hex: main.elf
rm -f main.hex
avr-objcopy -j .text -j .data -O ihex main.elf main.hex
# If you have an EEPROM section, you must also create a hex file for the
# EEPROM and add it to the "flash" target.
# Targets for code debugging and analysis:
disasm: main.elf
avr-objdump -d main.elf
cpp:
$(COMPILE) -E main.c
@julioceaseless

This comment has been minimized.

Copy link

julioceaseless commented Sep 19, 2015

thanks for your video

@Klaus-Valse

This comment has been minimized.

Copy link

Klaus-Valse commented Dec 27, 2016

Thank you for great tutorial. It helped me getting started, which is kind of the hardest thing. Anyway, I have a question:
Unfortunately I don't really know how makefiles work and I can barely edit or customize them. Now I split my code into multiple files, that I included in main.c. What do I have to modify in the makefile so that the compiler knows, what to compile? I could not get it to work. It's probably very easy and maybe you can help me out. This would be great.
Kind regards, Klaus.

@LURIDENAS

This comment has been minimized.

Copy link

LURIDENAS commented Sep 26, 2019

Thanks for the tutorial.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.