1 # Hey Emacs, this is a -*- makefile -*-
2 #----------------------------------------------------------------------------
3 # WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al.
5 # Released to the Public Domain
7 # Additional material for this makefile was written by:
17 #----------------------------------------------------------------------------
20 # make all = Make software.
22 # make clean = Clean out built project files.
24 # make coff = Convert ELF to AVR COFF.
26 # make extcoff = Convert ELF to AVR Extended COFF.
28 # make program = Download the hex file to the device, using avrdude.
29 # Please customize the avrdude settings below first!
31 # make debug = Start either simulavr or avarice as specified for debugging,
32 # with avr-gdb or avr-insight as the front end for debugging.
34 # make filename.s = Just compile filename.c into the assembler code only.
36 # make filename.i = Create a preprocessed source file for use in submitting
37 # bug reports to the GCC project.
39 # To rebuild project do "make clean" then "make all".
40 #----------------------------------------------------------------------------
43 # Target file name (without extension).
47 # List C source files here. (C dependencies are automatically generated.)
58 # MCU name, you MUST set this to match the board you are using
59 # type "make clean" after changing this, so all files will be rebuilt
60 #MCU = at90usb162 # Teensy 1.0
61 MCU
= atmega32u4
# Teensy 2.0
62 #MCU = at90usb646 # Teensy++ 1.0
63 #MCU = at90usb1286 # Teensy++ 2.0
66 # Processor frequency.
67 # Normally the first thing your program should do is set the clock prescaler,
68 # so your program will run at the correct speed. You should also set this
69 # variable to same clock speed. The _delay_ms() macro uses this, and many
70 # examples use this variable to calculate timings. Do not add a "UL" here.
74 # Output format. (can be srec, ihex, binary)
78 # Object files directory
79 # To put object files in current directory, use a dot (.), do NOT make
80 # this an empty or blank macro!
84 # List C++ source files here. (C dependencies are automatically generated.)
88 # List Assembler source files here.
89 # Make them always end in a capital .S. Files ending in a lowercase .s
90 # will not be considered source files but generated files (assembler
91 # output from the compiler), and will be deleted upon "make clean"!
92 # Even though the DOS/Win* filesystem matches both .s and .S the same,
93 # it will preserve the spelling of the filenames, and gcc itself does
94 # care about how the name is spelled on its command-line.
98 # Optimization level, can be [0, 1, 2, 3, s].
99 # 0 = turn off optimization. s = optimize for size.
100 # (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
105 # Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.
106 # AVR Studio 4.10 requires dwarf-2.
107 # AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.
111 # List any extra directories to look for include files here.
112 # Each directory must be seperated by a space.
113 # Use forward slashes for directory separators.
114 # For a directory that has spaces, enclose it in quotes.
118 # Compiler flag to set the C Standard level.
120 # gnu89 = c89 plus GCC extensions
121 # c99 = ISO C99 standard (not yet fully implemented)
122 # gnu99 = c99 plus GCC extensions
123 CSTANDARD
= -std
=gnu99
126 # Place -D or -U options here for C sources
127 CDEFS
= -DF_CPU
=$(F_CPU
)UL
130 # Place -D or -U options here for ASM sources
131 ADEFS
= -DF_CPU
=$(F_CPU
)
134 # Place -D or -U options here for C++ sources
135 CPPDEFS
= -DF_CPU
=$(F_CPU
)UL
136 #CPPDEFS += -D__STDC_LIMIT_MACROS
137 #CPPDEFS += -D__STDC_CONSTANT_MACROS
141 #---------------- Compiler Options C ----------------
142 # -g*: generate debugging information
143 # -O*: optimization level
144 # -f...: tuning, see GCC manual and avr-libc documentation
145 # -Wall...: warning level
146 # -Wa,...: tell GCC to pass this to the assembler.
147 # -adhlns...: create assembler listing
151 CFLAGS
+= -funsigned-char
152 CFLAGS
+= -funsigned-bitfields
153 CFLAGS
+= -ffunction-sections
154 CFLAGS
+= -fpack-struct
155 CFLAGS
+= -fshort-enums
157 CFLAGS
+= -Wstrict-prototypes
158 #CFLAGS += -mshort-calls
159 #CFLAGS += -fno-unit-at-a-time
161 #CFLAGS += -Wunreachable-code
162 #CFLAGS += -Wsign-compare
163 CFLAGS
+= -Wa
,-adhlns
=$(<:%.c
=$(OBJDIR
)/%.lst
)
164 CFLAGS
+= $(patsubst %,-I
%,$(EXTRAINCDIRS
))
165 CFLAGS
+= $(CSTANDARD
)
168 #---------------- Compiler Options C++ ----------------
169 # -g*: generate debugging information
170 # -O*: optimization level
171 # -f...: tuning, see GCC manual and avr-libc documentation
172 # -Wall...: warning level
173 # -Wa,...: tell GCC to pass this to the assembler.
174 # -adhlns...: create assembler listing
175 CPPFLAGS
= -g
$(DEBUG
)
176 CPPFLAGS
+= $(CPPDEFS
)
178 CPPFLAGS
+= -funsigned-char
179 CPPFLAGS
+= -funsigned-bitfields
180 CPPFLAGS
+= -fpack-struct
181 CPPFLAGS
+= -fshort-enums
182 CPPFLAGS
+= -fno-exceptions
185 #CPPFLAGS += -mshort-calls
186 #CPPFLAGS += -fno-unit-at-a-time
187 #CPPFLAGS += -Wstrict-prototypes
188 #CPPFLAGS += -Wunreachable-code
189 #CPPFLAGS += -Wsign-compare
190 CPPFLAGS
+= -Wa
,-adhlns
=$(<:%.
cpp=$(OBJDIR
)/%.lst
)
191 CPPFLAGS
+= $(patsubst %,-I
%,$(EXTRAINCDIRS
))
192 #CPPFLAGS += $(CSTANDARD)
195 #---------------- Assembler Options ----------------
196 # -Wa,...: tell GCC to pass this to the assembler.
197 # -adhlns: create listing
198 # -gstabs: have the assembler create line number information; note that
199 # for use in COFF files, additional information about filenames
200 # and function names needs to be present in the assembler source
201 # files -- see avr-libc docs [FIXME: not yet described there]
202 # -listing-cont-lines: Sets the maximum number of continuation lines of hex
203 # dump that will be displayed for a given single line of source input.
204 ASFLAGS
= $(ADEFS
) -Wa
,-adhlns
=$(<:%.S
=$(OBJDIR
)/%.lst
),-gstabs
,--listing-cont-lines
=100
207 #---------------- Library Options ----------------
208 # Minimalistic printf version
209 PRINTF_LIB_MIN
= -Wl
,-u
,vfprintf
-lprintf_min
211 # Floating point printf version (requires MATH_LIB = -lm below)
212 PRINTF_LIB_FLOAT
= -Wl
,-u
,vfprintf
-lprintf_flt
214 # If this is left blank, then it will use the Standard printf version.
216 #PRINTF_LIB = $(PRINTF_LIB_MIN)
217 #PRINTF_LIB = $(PRINTF_LIB_FLOAT)
220 # Minimalistic scanf version
221 SCANF_LIB_MIN
= -Wl
,-u
,vfscanf
-lscanf_min
223 # Floating point + %[ scanf version (requires MATH_LIB = -lm below)
224 SCANF_LIB_FLOAT
= -Wl
,-u
,vfscanf
-lscanf_flt
226 # If this is left blank, then it will use the Standard scanf version.
228 #SCANF_LIB = $(SCANF_LIB_MIN)
229 #SCANF_LIB = $(SCANF_LIB_FLOAT)
235 # List any extra directories to look for libraries here.
236 # Each directory must be seperated by a space.
237 # Use forward slashes for directory separators.
238 # For a directory that has spaces, enclose it in quotes.
243 #---------------- External Memory Options ----------------
245 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
246 # used for variables (.data/.bss) and heap (malloc()).
247 #EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
249 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
250 # only used for heap (malloc()).
251 #EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
257 #---------------- Linker Options ----------------
258 # -Wl,...: tell GCC to pass this to linker.
259 # -Map: create map file
260 # --cref: add cross reference to map file
261 LDFLAGS
= -Wl
,-Map
=$(TARGET
).map
,--cref
262 LDFLAGS
+= -Wl
,--relax
263 LDFLAGS
+= -Wl
,--gc-sections
264 LDFLAGS
+= $(EXTMEMOPTS
)
265 LDFLAGS
+= $(patsubst %,-L
%,$(EXTRALIBDIRS
))
266 LDFLAGS
+= $(PRINTF_LIB
) $(SCANF_LIB
) $(MATH_LIB
)
267 #LDFLAGS += -T linker_script.x
271 #---------------- Programming Options (avrdude) ----------------
273 # Programming hardware
275 # to get a full listing.
277 AVRDUDE_PROGRAMMER
= stk500v2
279 # com1 = serial port. Use lpt1 to connect to parallel port.
280 AVRDUDE_PORT
= com1
# programmer connected to serial device
282 AVRDUDE_WRITE_FLASH
= -U flash
:w
:$(TARGET
).hex
283 #AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
286 # Uncomment the following if you want avrdude's erase cycle counter.
287 # Note that this counter needs to be initialized first using -Yn,
288 # see avrdude manual.
289 #AVRDUDE_ERASE_COUNTER = -y
291 # Uncomment the following if you do /not/ wish a verification to be
292 # performed after programming the device.
293 #AVRDUDE_NO_VERIFY = -V
295 # Increase verbosity level. Please use this when submitting bug
296 # reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
297 # to submit bug reports.
298 #AVRDUDE_VERBOSE = -v -v
300 AVRDUDE_FLAGS
= -p
$(MCU
) -P
$(AVRDUDE_PORT
) -c
$(AVRDUDE_PROGRAMMER
)
301 AVRDUDE_FLAGS
+= $(AVRDUDE_NO_VERIFY
)
302 AVRDUDE_FLAGS
+= $(AVRDUDE_VERBOSE
)
303 AVRDUDE_FLAGS
+= $(AVRDUDE_ERASE_COUNTER
)
307 #---------------- Debugging Options ----------------
309 # For simulavr only - target MCU frequency.
310 DEBUG_MFREQ
= $(F_CPU
)
312 # Set the DEBUG_UI to either gdb or insight.
316 # Set the debugging back-end to either avarice, simulavr.
317 DEBUG_BACKEND
= avarice
318 #DEBUG_BACKEND = simulavr
321 GDBINIT_FILE
= __avr_gdbinit
323 # When using avarice settings for the JTAG
326 # Debugging port used to communicate between GDB / avarice / simulavr.
329 # Debugging host used to communicate between GDB / avarice / simulavr, normally
330 # just set to localhost unless doing some sort of crazy debugging when
331 # avarice is running on a different computer.
332 DEBUG_HOST
= localhost
336 #============================================================================
339 # Define programs and commands.
342 OBJCOPY
= avr-objcopy
343 OBJDUMP
= avr-objdump
356 MSG_ERRORS_NONE
= Errors
: none
357 MSG_BEGIN
= -------- begin
--------
358 MSG_END
= -------- end
--------
359 MSG_SIZE_BEFORE
= Size before
:
360 MSG_SIZE_AFTER
= Size after
:
361 MSG_COFF
= Converting to AVR COFF
:
362 MSG_EXTENDED_COFF
= Converting to AVR Extended COFF
:
363 MSG_FLASH
= Creating load file for Flash
:
364 MSG_EEPROM
= Creating load file for EEPROM
:
365 MSG_EXTENDED_LISTING
= Creating Extended Listing
:
366 MSG_SYMBOL_TABLE
= Creating Symbol Table
:
367 MSG_LINKING
= Linking
:
368 MSG_COMPILING
= Compiling C
:
369 MSG_COMPILING_CPP
= Compiling C
++:
370 MSG_ASSEMBLING
= Assembling
:
371 MSG_CLEANING
= Cleaning project
:
372 MSG_CREATING_LIBRARY
= Creating library
:
377 # Define all object files.
378 OBJ
= $(SRC
:%.c
=$(OBJDIR
)/%.o
) $(CPPSRC
:%.
cpp=$(OBJDIR
)/%.o
) $(ASRC
:%.S
=$(OBJDIR
)/%.o
)
380 # Define all listing files.
381 LST
= $(SRC
:%.c
=$(OBJDIR
)/%.lst
) $(CPPSRC
:%.
cpp=$(OBJDIR
)/%.lst
) $(ASRC
:%.S
=$(OBJDIR
)/%.lst
)
384 # Compiler flags to generate dependency files.
385 GENDEPFLAGS
= -MMD
-MP
-MF .dep
/$(@F
).d
388 # Combine all necessary flags and optional flags.
389 # Add target processor to flags.
390 ALL_CFLAGS
= -mmcu
=$(MCU
) -I.
$(CFLAGS
) $(GENDEPFLAGS
)
391 ALL_CPPFLAGS
= -mmcu
=$(MCU
) -I.
-x c
++ $(CPPFLAGS
) $(GENDEPFLAGS
)
392 ALL_ASFLAGS
= -mmcu
=$(MCU
) -I.
-x assembler-with-cpp
$(ASFLAGS
)
399 all: begin gccversion sizebefore build sizeafter end
401 # Change the build target to build a HEX file or a library.
402 build
: elf hex eep lss sym
411 LIBNAME
=lib
$(TARGET
).a
417 # AVR Studio 3.x does not check make's exit code but relies on
418 # the following magic strings to be generated by the compile job.
428 # Display size of file.
429 HEXSIZE
= $(SIZE
) --target
=$(FORMAT
) $(TARGET
).hex
430 #ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
431 ELFSIZE
= $(SIZE
) $(TARGET
).elf
434 @if
test -f
$(TARGET
).elf
; then echo
; echo
$(MSG_SIZE_BEFORE
); $(ELFSIZE
); \
435 2>/dev
/null
; echo
; fi
438 @if
test -f
$(TARGET
).elf
; then echo
; echo
$(MSG_SIZE_AFTER
); $(ELFSIZE
); \
439 2>/dev
/null
; echo
; fi
443 # Display compiler version information.
449 # Program the device.
450 program
: $(TARGET
).hex
$(TARGET
).eep
451 $(AVRDUDE
) $(AVRDUDE_FLAGS
) $(AVRDUDE_WRITE_FLASH
) $(AVRDUDE_WRITE_EEPROM
)
454 # Generate avr-gdb config/init file which does the following:
455 # define the reset signal, load the target file, connect to target, and set
456 # a breakpoint at main().
458 @
$(REMOVE
) $(GDBINIT_FILE
)
459 @echo
define reset
>> $(GDBINIT_FILE
)
460 @echo SIGNAL SIGHUP
>> $(GDBINIT_FILE
)
461 @echo end
>> $(GDBINIT_FILE
)
462 @echo file
$(TARGET
).elf
>> $(GDBINIT_FILE
)
463 @echo target remote
$(DEBUG_HOST
):$(DEBUG_PORT
) >> $(GDBINIT_FILE
)
464 ifeq ($(DEBUG_BACKEND
),simulavr
)
465 @echo load
>> $(GDBINIT_FILE
)
467 @echo break main
>> $(GDBINIT_FILE
)
469 debug
: gdb-config
$(TARGET
).elf
470 ifeq ($(DEBUG_BACKEND
), avarice
)
471 @echo Starting AVaRICE
- Press enter when
"waiting to connect" message displays.
472 @
$(WINSHELL
) /c start avarice
--jtag
$(JTAG_DEV
) --erase
--program
--file \
473 $(TARGET
).elf
$(DEBUG_HOST
):$(DEBUG_PORT
)
474 @
$(WINSHELL
) /c pause
477 @
$(WINSHELL
) /c start simulavr
--gdbserver
--device
$(MCU
) --clock-freq \
478 $(DEBUG_MFREQ
) --port
$(DEBUG_PORT
)
480 @
$(WINSHELL
) /c start avr-
$(DEBUG_UI
) --command
=$(GDBINIT_FILE
)
485 # Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
486 COFFCONVERT
= $(OBJCOPY
) --debugging
487 COFFCONVERT
+= --change-section-address .data-0x800000
488 COFFCONVERT
+= --change-section-address .bss-0x800000
489 COFFCONVERT
+= --change-section-address .noinit-0x800000
490 COFFCONVERT
+= --change-section-address .eeprom-0x810000
496 @echo
$(MSG_COFF
) $(TARGET
).cof
497 $(COFFCONVERT
) -O coff-avr
$< $(TARGET
).cof
500 extcoff
: $(TARGET
).elf
502 @echo
$(MSG_EXTENDED_COFF
) $(TARGET
).cof
503 $(COFFCONVERT
) -O coff-ext-avr
$< $(TARGET
).cof
507 # Create final output files (.hex, .eep) from ELF output file.
510 @echo
$(MSG_FLASH
) $@
511 $(OBJCOPY
) -O
$(FORMAT
) -R .eeprom
-R .fuse
-R .lock
-R .signature
$< $@
515 @echo
$(MSG_EEPROM
) $@
516 -$(OBJCOPY
) -j .eeprom
--set-section-flags
=.eeprom
="alloc,load" \
517 --change-section-lma .eeprom
=0 --no-change-warnings
-O
$(FORMAT
) $< $@ || exit
0
519 # Create extended listing file from ELF output file.
522 @echo
$(MSG_EXTENDED_LISTING
) $@
523 $(OBJDUMP
) -h
-S
-z
$< > $@
525 # Create a symbol table from ELF output file.
528 @echo
$(MSG_SYMBOL_TABLE
) $@
533 # Create library from object files.
534 .SECONDARY
: $(TARGET
).a
538 @echo
$(MSG_CREATING_LIBRARY
) $@
542 # Link: create ELF output file from object files.
543 .SECONDARY
: $(TARGET
).elf
547 @echo
$(MSG_LINKING
) $@
548 $(CC
) $(ALL_CFLAGS
) $^
--output
$@
$(LDFLAGS
)
551 # Compile: create object files from C source files.
554 @echo
$(MSG_COMPILING
) $<
555 $(CC
) -c
$(ALL_CFLAGS
) $< -o
$@
558 # Compile: create object files from C++ source files.
559 $(OBJDIR
)/%.o
: %.
cpp
561 @echo
$(MSG_COMPILING_CPP
) $<
562 $(CC
) -c
$(ALL_CPPFLAGS
) $< -o
$@
565 # Compile: create assembler files from C source files.
567 $(CC
) -S
$(ALL_CFLAGS
) $< -o
$@
570 # Compile: create assembler files from C++ source files.
572 $(CC
) -S
$(ALL_CPPFLAGS
) $< -o
$@
575 # Assemble: create object files from assembler source files.
578 @echo
$(MSG_ASSEMBLING
) $<
579 $(CC
) -c
$(ALL_ASFLAGS
) $< -o
$@
582 # Create preprocessed source for use in sending a bug report.
584 $(CC
) -E
-mmcu
=$(MCU
) -I.
$(CFLAGS
) $< -o
$@
587 # Target: clean project.
588 clean: begin clean_list end
592 @echo
$(MSG_CLEANING
)
593 $(REMOVE
) $(TARGET
).hex
594 $(REMOVE
) $(TARGET
).eep
595 $(REMOVE
) $(TARGET
).cof
596 $(REMOVE
) $(TARGET
).elf
597 $(REMOVE
) $(TARGET
).map
598 $(REMOVE
) $(TARGET
).sym
599 $(REMOVE
) $(TARGET
).lss
600 $(REMOVE
) $(SRC
:%.c
=$(OBJDIR
)/%.o
)
601 $(REMOVE
) $(SRC
:%.c
=$(OBJDIR
)/%.lst
)
602 $(REMOVE
) $(SRC
:.c
=.s
)
603 $(REMOVE
) $(SRC
:.c
=.d
)
604 $(REMOVE
) $(SRC
:.c
=.i
)
608 # Create object files directory
609 $(shell mkdir
$(OBJDIR
) 2>/dev
/null
)
612 # Include the dependency files.
613 -include $(shell mkdir .dep
2>/dev
/null
) $(wildcard .dep
/*)
616 # Listing of phony targets.
617 .PHONY
: all begin finish end sizebefore sizeafter gccversion \
618 build elf hex eep lss sym coff extcoff \
619 clean clean_list program debug gdb-config