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Makefile-AVR
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Makefile-AVR
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##############################################################################
# #
# Teacup - Lean and efficient firmware for RepRap printers #
# #
# by Triffid Hunter, Traumflug, jakepoz, many others. #
# #
# This firmware is Copyright (c) ... #
# 2009 - 2010 Michael Moon aka Triffid_Hunter #
# 2010 - 2013 Markus "Traumflug" Hitter <mah@jump-ing.de> #
# #
# This program is free software; you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation; either version 2 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program; if not, write to the Free Software #
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA #
# #
##############################################################################
##############################################################################
# #
# Makefile for AVR (ATmega-based) targets. Use it with #
# #
# make -f Makefile-AVR #
# #
# or copy/link it to Makefile for convenience. #
# #
##############################################################################
##############################################################################
# #
# Change these to suit your hardware #
# #
##############################################################################
# MCU ?= atmega168
# MCU ?= atmega328p
MCU ?= atmega644
# MCU ?= atmega644
# MCU ?= atmega1284p
# MCU ?= atmega1280
# MCU ?= atmega2560
# MCU ?= at90usb1286
# MCU ?= atmega32u4
# CPU clock rate
# F_CPU ?= 8000000L
F_CPU ?= 16000000L
# F_CPU ?= 20000000L
##############################################################################
# #
# Where to find your compiler and linker. Later, this is completed like #
# CC = $(TOOLCHAIN)gcc #
# #
##############################################################################
TOOLCHAIN = avr-
# TOOLCHAIN = /usr/bin/avr-
# TOOLCHAIN = <path-to-arduino-folder>/hardware/tools/avr/bin/avr-
##############################################################################
# #
# Programmer settings for "make program" #
# #
##############################################################################
# avrdude, typical for AVR-based architectures.
#
# Flags:
# -c <programmer-type> Typically stk500 or stk500v2.
# -b <baudrate> Upload baud rate. Depends on the bootloader in
# use. Not used for USB programmers.
# -p <mcu type> See MCU above.
# -P <port> Serial port the electronics is connected to.
# -C <config file> Optional, default is /etc/avrdude.conf.
UPLOADER ?= avrdude
# UPLOADER = <path-to-arduino-folder>/hardware/tools/avrdude
ifndef UPLOADER_FLAGS
UPLOADER_FLAGS = -c stk500v2
# UPLOADER_FLAGS += -b 19200
# UPLOADER_FLAGS += -b 57600
UPLOADER_FLAGS += -b 115200
UPLOADER_FLAGS += -p $(MCU)
# UPLOADER_FLAGS += -P COM1
# UPLOADER_FLAGS += -P /dev/ttyACM0
UPLOADER_FLAGS += -P /dev/ttyUSB0
# UPLOADER_FLAGS += -C <path-to-arduino-folder>/hardware/tools/avrdude.conf
endif
##############################################################################
# #
# Below here, defaults should be ok. #
# #
##############################################################################
PROGRAM = teacup
# The thing we build by default, and also the thing we clean.
TARGET = $(PROGRAM).hex
# Arduino IDE takes the "compile everything available"-approach, so we have
# to keep this working and can take a shortcut:
SOURCES = $(wildcard *.c)
CFLAGS = $(EXTRA_CFLAGS)
CFLAGS += -DF_CPU=$(F_CPU)
CFLAGS += -DMCU_STR=\"$(MCU)\"
CFLAGS += -mmcu=$(MCU)
CFLAGS += -g
CFLAGS += -Wall
CFLAGS += -Wstrict-prototypes
CFLAGS += -std=gnu99
CFLAGS += -funsigned-char
CFLAGS += -funsigned-bitfields
CFLAGS += -fpack-struct
CFLAGS += -fshort-enums
CFLAGS += -Winline
CFLAGS += -fno-move-loop-invariants
CFLAGS += -fno-tree-scev-cprop
CFLAGS += -Os
CFLAGS += -ffunction-sections
CFLAGS += -finline-functions-called-once
CFLAGS += -mcall-prologues
CFLAGS += -Wa,-adhlns=$(@:.o=.al)
#CFLAGS += -dM -E # To list all predefined macros into the .o file.
LDFLAGS = -Wl,--as-needed
ifneq ($(realpath ../simulavr/src/simulavr_info.h),)
# Neccessary for simulavr support, doesn't hurt others.
CFLAGS += -DSIMINFO
LDFLAGS += -Wl,--section-start=.siminfo=0x900000
else
# Doesn't work for simulavr, can't allow dead code removal.
LDFLAGS += -Wl,--gc-sections
endif
LIBS = -lm
-include Makefile-common
# Architecture specific targets
.PHONY: all program size
all: $(PROGRAM).hex $(BUILDDIR)/$(PROGRAM).lst $(BUILDDIR)/$(PROGRAM).sym size
program: $(PROGRAM).hex config.h
$(UPLOADER) $(UPLOADER_FLAGS) -U flash:w:$(PROGRAM).hex
## Interpret TARGET section sizes wrt different AVR chips
## Usage: $(call show_size,section-name,section-regex,Atmega168-size-in-k,Atmega328p-size-in-k,Atmega644p-size-in-k,Atmega1280-size-in-k)
define show_size
@$(OBJDUMP) -h $^ | \
perl -MPOSIX -ne \
'/.($2)\s+([0-9a-f]+)/ && do { $$a += eval "0x$$2" }; \
END { printf " %-7s: %5d bytes %3d%% %3d%% %3d%% %3d%%\n", "$1", $$a, \
ceil($$a * 100 / ($3 * 1024)), \
ceil($$a * 100 / ($4 * 1024)), \
ceil($$a * 100 / ($5 * 1024)), \
ceil($$a * 100 / ($6 * 1024)) \
}'
endef
size: $(BUILDDIR)/$(PROGRAM).elf
@echo " SIZES ATmega... '168 '328(P) '644(P) '1280"
$(call show_size,FLASH,text,14,30,62,126)
$(call show_size,RAM,data|bss,1,2,4,8)
$(call show_size,EEPROM,eeprom,1,2,2,4)