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Makefile-ARM
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Makefile-ARM
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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 <[email protected]> #
# #
# 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 ARM targets. Use it with #
# #
# make -f Makefile-ARM #
# #
# or copy/link it to Makefile for convenience. #
# #
##############################################################################
##############################################################################
# #
# Change these to suit your hardware #
# #
##############################################################################
MCU ?= lpc1114
# CPU clock rate not defined here, but in the CMSIS headers.
##############################################################################
# #
# Where to find your compiler and linker. Later, this is completed like #
# CC = $(TOOLCHAIN)gcc #
# #
##############################################################################
TOOLCHAIN = arm-none-eabi-
# TOOLCHAIN = <path-to-arduino-folder>/hardware/tools/gcc-arm-none-eabi-4.8.3-2014q1/bin/arm-none-eabi-
##############################################################################
# #
# Programmer settings for "make program" #
# #
##############################################################################
# Unlike with AVR, there is no one tool for uploading to all chips. Some
# need 'lpc21isp', others (e.g. Arduinos) need 'bossac'.
#
# To deal with this, we simply define the port here and do the rest directly
# in the rules for the 'program' target.
# Frequency of the on-chip R/C oscillator or the on-board quartz crystal.
# Not to confuse with the CPU's clock frequency, which is usually much higher.
F_CRYSTAL ?= 12000000
# Serial port the electronics is connected to.
#UPLOADER_PORT ?= /dev/ttyUSB0
UPLOADER_PORT ?= /dev/ttyACM0
#UPLOADER_PORT ?= com1
##############################################################################
# #
# 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 = $(wildcard *.c)
ifeq ($(MCU), lpc1114)
SOURCES += cmsis-system_lpc11xx.c
endif
# Other target MCU specific adjustments:
# Startup definitions. Not target MCU specific.
CFLAGS = -D__STARTUP_CLEAR_BSS -D__START=main
ifeq ($(MCU), lpc1114)
CFLAGS += -mthumb -mcpu=cortex-m0
CFLAGS += -mtune=cortex-m0
CFLAGS += -D__ARM_LPC1114__
endif
# Other options ...
CFLAGS += -Wall
CFLAGS += -Wstrict-prototypes
CFLAGS += -Os
#CFLAGS += -flto
CFLAGS += -ffunction-sections
CFLAGS += -fdata-sections
#CFLAGS += -dM -E # To list all predefined macros into the .o file.
LDFLAGS = --specs=nano.specs
LDFLAGS += --specs=nosys.specs
ifeq ($(MCU), lpc1114)
LDFLAGS += -T cmsis-lpc1114.ld
endif
LDFLAGS += -Wl,--as-needed
LDFLAGS += -Wl,--gc-sections
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
@echo
@echo "To let the bootloader complete his work, connect now PIO0_1 to GND,"
@echo "then press Reset for a moment. The bootloader should begin uploading."
@echo "After being done, disconnect PIO0_1 and press reset again. On a"
@echo "Gen7-ARM, PIO0_1 is the Step pin of the Z stepper driver."
@echo
lpc21isp -control $< $(UPLOADER_PORT) 115200 $(F_CRYSTAL)
$(BUILDDIR)/teacup.elf: $(BUILDDIR)/startup.o
$(BUILDDIR)/startup.o: cmsis-startup_lpc11xx.s | $(BUILDDIR)
@echo " CC $@"
@$(CC) -c $(CFLAGS) -o $@ $<
## Interpret TARGET section sizes wrt different ARM chips
## Usage: $(call show_size,section-name,section-regex,lpc1114-size-in-k)
define show_size
@$(OBJDUMP) -h $^ | \
perl -MPOSIX -ne \
'/.($2)\s+([0-9a-f]+)/ && do { $$a += eval "0x$$2" }; \
END { printf " %-7s: %5d bytes %3d%%\n", "$1", $$a, \
ceil($$a * 100 / ($3 * 1024)), \
}'
endef
size: $(BUILDDIR)/$(PROGRAM).elf
@echo " SIZES ARM... lpc1114"
$(call show_size,FLASH,text,32)
$(call show_size,RAM,data|bss,4)
$(call show_size,EEPROM,eeprom,0.0001)