aduino Makefile tunning

[rhinos]

Hello,

I'm playing with an arduino mega 2560 board since few weeks (my goal is to learrning C by practice). Everything was fine until i want play with external librairies ...explanations.

I bought a 9DoF (Adafruit_FXOS8700 / Adafruit_FXAS21002C) and try to use example file, but i'am stock with the Makefile modification.

I found how to include Adafruit_Sensor by adding : CINCS = -I$(ARDUINO)/cores/arduino $(LIBINC) \ -I$(ARDUINO)/variants/$(VARIANT) \ -Ilibrairies/Adafruit_Sensor

But i don't understand how to modify my Makefile to handle Adafruit_FXAS21002C and compile it. I try differents syntax /things without success.

My sketch looks like this :

/home/rhino/code/arduino/projects/sensor $ ls -lt * -rwxr-xr-x 1 rhino rhino 6367 Jun 18 18:24 Makefile -rw-r--r-- 1 rhino rhino 644 Jun 18 14:24 sensor.ino

librairies: total 32 drwxr-xr-x 3 rhino rhino 512 Jun 19 09:49 Adafruit_FXAS21002C drwxr-xr-x 3 rhino rhino 512 Jun 18 11:00 Adafruit_FXOS8700 drwxr-xr-x 2 rhino rhino 512 Jun 18 10:59 Adafruit_Sensor drwxr-xr-x 5 rhino rhino 512 Jun 18 10:59 Adafruit_AHRS

My OS is OpenBSD 6.1 without IDE.

There is my Makefile following by the compilation error :

TARGET = ${.CURDIR:C/.*\///g}

UPLOAD_RATE = 115200
PORT = /dev/cuaU1
AVRDUDE_PROGRAMMER = stk500v2
MCU = atmega2560
F_CPU = 16000000
VARIANT = mega

LIBRARIES=Wire

ARDUINO = /usr/local/share/arduino/
.PATH: $(ARDUINO)/cores/arduino ${LIBRARIES:S|^|$(ARDUINO)/libraries/|g} librairies
AVR_TOOLS_PATH = /usr/local/bin
SRC = wiring.c wiring_analog.c wiring_digital.c \
wiring_pulse.c wiring_shift.c WInterrupts.c
CXXSRC = HardwareSerial.cpp WMath.cpp Print.cpp WString.cpp \
        ${LIBRARIES:S|$|.cpp|g}

FORMAT = ihex
MAKEFILE = Makefile
DEBUG = stabs

COPT = s
CDEFS = -DF_CPU=$(F_CPU) -DARDUINO=100
CINCS = -I$(ARDUINO)/cores/arduino $(LIBINC) \
        -I$(ARDUINO)/variants/$(VARIANT) \
        -Ilibrairies/Adafruit_Sensor \
        -Ilibrairies/Adafruit_FXAS21002C
CSTANDARD = -std=gnu99
CDEBUG = -g$(DEBUG)
CWARN = -Wall -Wstrict-prototypes
CTUNING = -ffunction-sections -fdata-sections
CFLAGS = $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CWARN) \
         $(CSTANDARD) $(CEXTRA) $(CTUNING)

CXXOPT = ${COPT}
CXXDEFS = -DF_CPU=$(F_CPU) -DARDUINO=100
CXXINCS = ${CINCS}
CXXSTANDARD =
CXXDEBUG = ${CDEBUG}
CXXWARN =
CXXTUNING = ${CTUNING}
CXXEXTRA = ${CEXTRA}
CXXFLAGS = $(CXXDEBUG) $(CXXDEFS) $(CXXINCS) -O$(CXXOPT) $(CXXWARN) \
         $(CXXSTANDARD) $(CXXEXTRA) $(CXXTUNING)

# Linker stuff
LDFLAGS = -lm -Wl,--gc-sections
ROOTLIBINCS=${LIBRARIES:S|^|-I$(ARDUINO)/libraries/|g}
UTILITYLIBINCS=${ROOTLIBINCS:S|$|/utility/|g}
LIBINC=${ROOTLIBINCS} ${UTILITYLIBINCS}

# Programming support using avrdude. Settings and variables.
AVRDUDE_PORT = $(PORT)
AVRDUDE_WRITE_FLASH = -U flash:w:applet/$(TARGET).hex
AVRDUDE_CONF = /etc/avrdude.conf
AVRDUDE_FLAGS = -v -v -D -V -F -C $(AVRDUDE_CONF) -p $(MCU) -P $(AVRDUDE_PORT) \
-c $(AVRDUDE_PROGRAMMER) -b $(UPLOAD_RATE)

# Program settings
CC = $(AVR_TOOLS_PATH)/avr-gcc
CXX = $(AVR_TOOLS_PATH)/avr-g++
OBJCOPY = $(AVR_TOOLS_PATH)/avr-objcopy
OBJDUMP = $(AVR_TOOLS_PATH)/avr-objdump
AR  = $(AVR_TOOLS_PATH)/avr-ar
SIZE = $(AVR_TOOLS_PATH)/avr-size
NM = $(AVR_TOOLS_PATH)/avr-nm
AVRDUDE = $(AVR_TOOLS_PATH)/avrdude
REMOVE = rm -f
REMOVEDIR = rmdir
MKDIR = mkdir -p
MV = mv -f

# Define all object files.
OBJ = $(SRC:.c=.o) $(CXXSRC:.cpp=.o) $(ASRC:.S=.o)

# Define all listing files.
LST = $(ASRC:.S=.lst) $(CXXSRC:.cpp=.lst) $(SRC:.c=.lst)

# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS)
ALL_CXXFLAGS = -mmcu=$(MCU) -I. $(CXXFLAGS)
ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)

# Default target.
all: applet_files build sizeafter
build: mkdirs elf hex

mkdirs:
        $(MKDIR) utility

# Here is the "preprocessing".
# It creates a .cpp file based with the same name as the .ino file.
# On top of the new .cpp file comes the Arduino.h header.
# Then comes a stdc++ workaround, see:
# http://stackoverflow.com/questions/920500/what-is-the-purpose-of-cxa-pure-virtual
# At the end there is a generic main() function attached.
# Then the .cpp file will be compiled. Errors during compile will
# refer to this new, automatically generated, file.
# Not the original .ino file you actually edit...
applet_files: $(TARGET).ino
        test -d applet || mkdir applet
        echo '#include "Arduino.h"' > applet/$(TARGET).cpp
        echo '#ifdef __cplusplus' >> applet/$(TARGET).cpp
        echo 'extern "C" void __cxa_pure_virtual(void) { while(1); }' \
                >> applet/$(TARGET).cpp
        echo '#endif\n' >> applet/$(TARGET).cpp
        cat $(TARGET).ino >> applet/$(TARGET).cpp
        cat $(ARDUINO)/cores/arduino/main.cpp >> applet/$(TARGET).cpp

elf: applet/$(TARGET).elf
hex: applet/$(TARGET).hex
eep: applet/$(TARGET).eep
lss: applet/$(TARGET).lss
sym: applet/$(TARGET).sym

# Program the device.
upload: applet/$(TARGET).hex
        $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH)

# Display size of file.
HEXSIZE = $(SIZE) --target=$(FORMAT) applet/$(TARGET).hex
ELFSIZE = $(SIZE)  applet/$(TARGET).elf
sizebefore:
        @if [ -f applet/$(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(HEXSIZE); echo; fi

sizeafter: applet/$(TARGET).hex
        @if [ -f applet/$(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(HEXSIZE); echo; fi
# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
COFFCONVERT=$(OBJCOPY) --debugging \
--change-section-address .data-0x800000 \
--change-section-address .bss-0x800000 \
--change-section-address .noinit-0x800000 \
--change-section-address .eeprom-0x810000

coff: applet/$(TARGET).elf
        $(COFFCONVERT) -O coff-avr applet/$(TARGET).elf $(TARGET).cof

extcoff: $(TARGET).elf
        $(COFFCONVERT) -O coff-ext-avr applet/$(TARGET).elf $(TARGET).cof

.SUFFIXES: .elf .hex .eep .lss .sym .cpp .o .c .s .S

.elf.hex:
        $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@

.elf.eep:
        -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
        --change-section-lma .eeprom=0 -O $(FORMAT) $< $@

# Create extended listing file from ELF output file.
.elf.lss:
        $(OBJDUMP) -h -S $< > $@

# Create a symbol table from ELF output file.
.elf.sym:
        $(NM) -n $< > $@

# Link: create ELF output file from library.
applet/$(TARGET).elf: $(TARGET).ino applet/core.a
        $(CXX) $(ALL_CXXFLAGS) -o $@ applet/$(TARGET).cpp -L. applet/core.a $(LDFLAGS)

applet/core.a: $(OBJ)
        @for i in $(OBJ); do echo $(AR) rcs applet/core.a $$i; $(AR) rcs applet/core.a $$i; done

# Compile: create object files from C++ source files.
.cpp.o:
        $(CXX) -c $(ALL_CXXFLAGS) $< -o $@
# Compile: create object files from C source files.
.c.o:
        $(CC) -c $(ALL_CFLAGS) $< -o $@

# Compile: create assembler files from C source files.
.c.s:
        $(CC) -S $(ALL_CFLAGS) $< -o $@

# Assemble: create object files from assembler source files.
.S.o:
        $(CC) -c $(ALL_ASFLAGS) $< -o $@

# Automatic dependencies
%.d: %.c
        $(CC) -M $(ALL_CFLAGS) $< | sed "s;$(notdir $*).o:;$*.o $*.d:;" > $@

%.d: %.cpp
        $(CXX) -M $(ALL_CXXFLAGS) $< | sed "s;$(notdir $*).o:;$*.o $*.d:;" > $@

# Target: clean project.
clean:
        $(REMOVE) applet/$(TARGET).hex applet/$(TARGET).eep applet/$(TARGET).cof applet/$(TARGET).elf \
        applet/$(TARGET).map applet/$(TARGET).sym applet/$(TARGET).lss applet/core.a \
        $(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d) $(CXXSRC:.cpp=.s) $(CXXSRC:.cpp=.d) utility/*
        if [ -d utility ]; then $(REMOVEDIR) utility; fi

.PHONY: all build elf hex eep lss sym program coff extcoff clean applet_files sizebefore sizeafter

/usr/local/bin/avr-g++ -mmcu=atmega2560 -I. -gstabs -DF_CPU=16000000 -DARDUINO=100 -I/usr/local/share/arduino//cores/arduino -I/usr/local/share/arduino//libraries/Wire -I/usr/local/share/arduino//libraries/Wire/utility/  -I/usr/local/share/arduino//variants/mega  -Ilibrairies/Adafruit_Sensor  -Ilibrairies/Adafruit_FXAS21002C -Os     -ffunction-sections -fdata-sections -o applet/sensor.elf applet/sensor.cpp -L. applet/core.a -lm -Wl,--gc-sections
/tmp//ccMaZCqd.o: In function `main':
applet/sensor.cpp:54: undefined reference to `Adafruit_FXAS21002C::Adafruit_FXAS21002C(long)'
applet/sensor.cpp:54: undefined reference to `operator delete(void*)'

Thank's for your help and your advices.

Bruno.

[mojason-81]

@rhinos You're awesome! Thanks for posting this.