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.)
49 usb_keyboard_debug.c \
53 # MCU name, you MUST set this to match the board you are using
54 # type "make clean" after changing this, so all files will be rebuilt
55 #MCU = at90usb162 # Teensy 1.0
56 MCU
= atmega32u4
# Teensy 2.0
57 #MCU = at90usb646 # Teensy++ 1.0
58 #MCU = at90usb1286 # Teensy++ 2.0
61 # Processor frequency.
62 # Normally the first thing your program should do is set the clock prescaler,
63 # so your program will run at the correct speed. You should also set this
64 # variable to same clock speed. The _delay_ms() macro uses this, and many
65 # examples use this variable to calculate timings. Do not add a "UL" here.
69 # Output format. (can be srec, ihex, binary)
73 # Object files directory
74 # To put object files in current directory, use a dot (.), do NOT make
75 # this an empty or blank macro!
79 # List C++ source files here. (C dependencies are automatically generated.)
83 # List Assembler source files here.
84 # Make them always end in a capital .S. Files ending in a lowercase .s
85 # will not be considered source files but generated files (assembler
86 # output from the compiler), and will be deleted upon "make clean"!
87 # Even though the DOS/Win* filesystem matches both .s and .S the same,
88 # it will preserve the spelling of the filenames, and gcc itself does
89 # care about how the name is spelled on its command-line.
93 # Optimization level, can be [0, 1, 2, 3, s].
94 # 0 = turn off optimization. s = optimize for size.
95 # (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
100 # Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.
101 # AVR Studio 4.10 requires dwarf-2.
102 # AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.
106 # List any extra directories to look for include files here.
107 # Each directory must be seperated by a space.
108 # Use forward slashes for directory separators.
109 # For a directory that has spaces, enclose it in quotes.
113 # Compiler flag to set the C Standard level.
115 # gnu89 = c89 plus GCC extensions
116 # c99 = ISO C99 standard (not yet fully implemented)
117 # gnu99 = c99 plus GCC extensions
118 CSTANDARD
= -std
=gnu99
121 # Place -D or -U options here for C sources
122 CDEFS
= -DF_CPU
=$(F_CPU
)UL
125 # Place -D or -U options here for ASM sources
126 ADEFS
= -DF_CPU
=$(F_CPU
)
129 # Place -D or -U options here for C++ sources
130 CPPDEFS
= -DF_CPU
=$(F_CPU
)UL
131 #CPPDEFS += -D__STDC_LIMIT_MACROS
132 #CPPDEFS += -D__STDC_CONSTANT_MACROS
136 #---------------- Compiler Options C ----------------
137 # -g*: generate debugging information
138 # -O*: optimization level
139 # -f...: tuning, see GCC manual and avr-libc documentation
140 # -Wall...: warning level
141 # -Wa,...: tell GCC to pass this to the assembler.
142 # -adhlns...: create assembler listing
146 CFLAGS
+= -funsigned-char
147 CFLAGS
+= -funsigned-bitfields
148 CFLAGS
+= -ffunction-sections
149 CFLAGS
+= -fpack-struct
150 CFLAGS
+= -fshort-enums
152 CFLAGS
+= -Wstrict-prototypes
153 #CFLAGS += -mshort-calls
154 #CFLAGS += -fno-unit-at-a-time
156 #CFLAGS += -Wunreachable-code
157 #CFLAGS += -Wsign-compare
158 CFLAGS
+= -Wa
,-adhlns
=$(<:%.c
=$(OBJDIR
)/%.lst
)
159 CFLAGS
+= $(patsubst %,-I
%,$(EXTRAINCDIRS
))
160 CFLAGS
+= $(CSTANDARD
)
163 #---------------- Compiler Options C++ ----------------
164 # -g*: generate debugging information
165 # -O*: optimization level
166 # -f...: tuning, see GCC manual and avr-libc documentation
167 # -Wall...: warning level
168 # -Wa,...: tell GCC to pass this to the assembler.
169 # -adhlns...: create assembler listing
170 CPPFLAGS
= -g
$(DEBUG
)
171 CPPFLAGS
+= $(CPPDEFS
)
173 CPPFLAGS
+= -funsigned-char
174 CPPFLAGS
+= -funsigned-bitfields
175 CPPFLAGS
+= -fpack-struct
176 CPPFLAGS
+= -fshort-enums
177 CPPFLAGS
+= -fno-exceptions
180 #CPPFLAGS += -mshort-calls
181 #CPPFLAGS += -fno-unit-at-a-time
182 #CPPFLAGS += -Wstrict-prototypes
183 #CPPFLAGS += -Wunreachable-code
184 #CPPFLAGS += -Wsign-compare
185 CPPFLAGS
+= -Wa
,-adhlns
=$(<:%.
cpp=$(OBJDIR
)/%.lst
)
186 CPPFLAGS
+= $(patsubst %,-I
%,$(EXTRAINCDIRS
))
187 #CPPFLAGS += $(CSTANDARD)
190 #---------------- Assembler Options ----------------
191 # -Wa,...: tell GCC to pass this to the assembler.
192 # -adhlns: create listing
193 # -gstabs: have the assembler create line number information; note that
194 # for use in COFF files, additional information about filenames
195 # and function names needs to be present in the assembler source
196 # files -- see avr-libc docs [FIXME: not yet described there]
197 # -listing-cont-lines: Sets the maximum number of continuation lines of hex
198 # dump that will be displayed for a given single line of source input.
199 ASFLAGS
= $(ADEFS
) -Wa
,-adhlns
=$(<:%.S
=$(OBJDIR
)/%.lst
),-gstabs
,--listing-cont-lines
=100
202 #---------------- Library Options ----------------
203 # Minimalistic printf version
204 PRINTF_LIB_MIN
= -Wl
,-u
,vfprintf
-lprintf_min
206 # Floating point printf version (requires MATH_LIB = -lm below)
207 PRINTF_LIB_FLOAT
= -Wl
,-u
,vfprintf
-lprintf_flt
209 # If this is left blank, then it will use the Standard printf version.
211 #PRINTF_LIB = $(PRINTF_LIB_MIN)
212 #PRINTF_LIB = $(PRINTF_LIB_FLOAT)
215 # Minimalistic scanf version
216 SCANF_LIB_MIN
= -Wl
,-u
,vfscanf
-lscanf_min
218 # Floating point + %[ scanf version (requires MATH_LIB = -lm below)
219 SCANF_LIB_FLOAT
= -Wl
,-u
,vfscanf
-lscanf_flt
221 # If this is left blank, then it will use the Standard scanf version.
223 #SCANF_LIB = $(SCANF_LIB_MIN)
224 #SCANF_LIB = $(SCANF_LIB_FLOAT)
230 # List any extra directories to look for libraries here.
231 # Each directory must be seperated by a space.
232 # Use forward slashes for directory separators.
233 # For a directory that has spaces, enclose it in quotes.
238 #---------------- External Memory Options ----------------
240 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
241 # used for variables (.data/.bss) and heap (malloc()).
242 #EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
244 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
245 # only used for heap (malloc()).
246 #EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
252 #---------------- Linker Options ----------------
253 # -Wl,...: tell GCC to pass this to linker.
254 # -Map: create map file
255 # --cref: add cross reference to map file
256 LDFLAGS
= -Wl
,-Map
=$(TARGET
).map
,--cref
257 LDFLAGS
+= -Wl
,--relax
258 LDFLAGS
+= -Wl
,--gc-sections
259 LDFLAGS
+= $(EXTMEMOPTS
)
260 LDFLAGS
+= $(patsubst %,-L
%,$(EXTRALIBDIRS
))
261 LDFLAGS
+= $(PRINTF_LIB
) $(SCANF_LIB
) $(MATH_LIB
)
262 #LDFLAGS += -T linker_script.x
266 #---------------- Programming Options (avrdude) ----------------
268 # Programming hardware
270 # to get a full listing.
272 AVRDUDE_PROGRAMMER
= stk500v2
274 # com1 = serial port. Use lpt1 to connect to parallel port.
275 AVRDUDE_PORT
= com1
# programmer connected to serial device
277 AVRDUDE_WRITE_FLASH
= -U flash
:w
:$(TARGET
).hex
278 #AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
281 # Uncomment the following if you want avrdude's erase cycle counter.
282 # Note that this counter needs to be initialized first using -Yn,
283 # see avrdude manual.
284 #AVRDUDE_ERASE_COUNTER = -y
286 # Uncomment the following if you do /not/ wish a verification to be
287 # performed after programming the device.
288 #AVRDUDE_NO_VERIFY = -V
290 # Increase verbosity level. Please use this when submitting bug
291 # reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
292 # to submit bug reports.
293 #AVRDUDE_VERBOSE = -v -v
295 AVRDUDE_FLAGS
= -p
$(MCU
) -P
$(AVRDUDE_PORT
) -c
$(AVRDUDE_PROGRAMMER
)
296 AVRDUDE_FLAGS
+= $(AVRDUDE_NO_VERIFY
)
297 AVRDUDE_FLAGS
+= $(AVRDUDE_VERBOSE
)
298 AVRDUDE_FLAGS
+= $(AVRDUDE_ERASE_COUNTER
)
302 #---------------- Debugging Options ----------------
304 # For simulavr only - target MCU frequency.
305 DEBUG_MFREQ
= $(F_CPU
)
307 # Set the DEBUG_UI to either gdb or insight.
311 # Set the debugging back-end to either avarice, simulavr.
312 DEBUG_BACKEND
= avarice
313 #DEBUG_BACKEND = simulavr
316 GDBINIT_FILE
= __avr_gdbinit
318 # When using avarice settings for the JTAG
321 # Debugging port used to communicate between GDB / avarice / simulavr.
324 # Debugging host used to communicate between GDB / avarice / simulavr, normally
325 # just set to localhost unless doing some sort of crazy debugging when
326 # avarice is running on a different computer.
327 DEBUG_HOST
= localhost
331 #============================================================================
334 # Define programs and commands.
337 OBJCOPY
= avr-objcopy
338 OBJDUMP
= avr-objdump
351 MSG_ERRORS_NONE
= Errors
: none
352 MSG_BEGIN
= -------- begin
--------
353 MSG_END
= -------- end
--------
354 MSG_SIZE_BEFORE
= Size before
:
355 MSG_SIZE_AFTER
= Size after
:
356 MSG_COFF
= Converting to AVR COFF
:
357 MSG_EXTENDED_COFF
= Converting to AVR Extended COFF
:
358 MSG_FLASH
= Creating load file for Flash
:
359 MSG_EEPROM
= Creating load file for EEPROM
:
360 MSG_EXTENDED_LISTING
= Creating Extended Listing
:
361 MSG_SYMBOL_TABLE
= Creating Symbol Table
:
362 MSG_LINKING
= Linking
:
363 MSG_COMPILING
= Compiling C
:
364 MSG_COMPILING_CPP
= Compiling C
++:
365 MSG_ASSEMBLING
= Assembling
:
366 MSG_CLEANING
= Cleaning project
:
367 MSG_CREATING_LIBRARY
= Creating library
:
372 # Define all object files.
373 OBJ
= $(SRC
:%.c
=$(OBJDIR
)/%.o
) $(CPPSRC
:%.
cpp=$(OBJDIR
)/%.o
) $(ASRC
:%.S
=$(OBJDIR
)/%.o
)
375 # Define all listing files.
376 LST
= $(SRC
:%.c
=$(OBJDIR
)/%.lst
) $(CPPSRC
:%.
cpp=$(OBJDIR
)/%.lst
) $(ASRC
:%.S
=$(OBJDIR
)/%.lst
)
379 # Compiler flags to generate dependency files.
380 GENDEPFLAGS
= -MMD
-MP
-MF .dep
/$(@F
).d
383 # Combine all necessary flags and optional flags.
384 # Add target processor to flags.
385 ALL_CFLAGS
= -mmcu
=$(MCU
) -I.
$(CFLAGS
) $(GENDEPFLAGS
)
386 ALL_CPPFLAGS
= -mmcu
=$(MCU
) -I.
-x c
++ $(CPPFLAGS
) $(GENDEPFLAGS
)
387 ALL_ASFLAGS
= -mmcu
=$(MCU
) -I.
-x assembler-with-cpp
$(ASFLAGS
)
394 all: begin gccversion sizebefore build sizeafter end
396 # Change the build target to build a HEX file or a library.
397 build
: elf hex eep lss sym
406 LIBNAME
=lib
$(TARGET
).a
412 # AVR Studio 3.x does not check make's exit code but relies on
413 # the following magic strings to be generated by the compile job.
423 # Display size of file.
424 HEXSIZE
= $(SIZE
) --target
=$(FORMAT
) $(TARGET
).hex
425 #ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
426 ELFSIZE
= $(SIZE
) $(TARGET
).elf
429 @if
test -f
$(TARGET
).elf
; then echo
; echo
$(MSG_SIZE_BEFORE
); $(ELFSIZE
); \
430 2>/dev
/null
; echo
; fi
433 @if
test -f
$(TARGET
).elf
; then echo
; echo
$(MSG_SIZE_AFTER
); $(ELFSIZE
); \
434 2>/dev
/null
; echo
; fi
438 # Display compiler version information.
444 # Program the device.
445 program
: $(TARGET
).hex
$(TARGET
).eep
446 $(AVRDUDE
) $(AVRDUDE_FLAGS
) $(AVRDUDE_WRITE_FLASH
) $(AVRDUDE_WRITE_EEPROM
)
449 # Generate avr-gdb config/init file which does the following:
450 # define the reset signal, load the target file, connect to target, and set
451 # a breakpoint at main().
453 @
$(REMOVE
) $(GDBINIT_FILE
)
454 @echo
define reset
>> $(GDBINIT_FILE
)
455 @echo SIGNAL SIGHUP
>> $(GDBINIT_FILE
)
456 @echo end
>> $(GDBINIT_FILE
)
457 @echo file
$(TARGET
).elf
>> $(GDBINIT_FILE
)
458 @echo target remote
$(DEBUG_HOST
):$(DEBUG_PORT
) >> $(GDBINIT_FILE
)
459 ifeq ($(DEBUG_BACKEND
),simulavr
)
460 @echo load
>> $(GDBINIT_FILE
)
462 @echo break main
>> $(GDBINIT_FILE
)
464 debug
: gdb-config
$(TARGET
).elf
465 ifeq ($(DEBUG_BACKEND
), avarice
)
466 @echo Starting AVaRICE
- Press enter when
"waiting to connect" message displays.
467 @
$(WINSHELL
) /c start avarice
--jtag
$(JTAG_DEV
) --erase
--program
--file \
468 $(TARGET
).elf
$(DEBUG_HOST
):$(DEBUG_PORT
)
469 @
$(WINSHELL
) /c pause
472 @
$(WINSHELL
) /c start simulavr
--gdbserver
--device
$(MCU
) --clock-freq \
473 $(DEBUG_MFREQ
) --port
$(DEBUG_PORT
)
475 @
$(WINSHELL
) /c start avr-
$(DEBUG_UI
) --command
=$(GDBINIT_FILE
)
480 # Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
481 COFFCONVERT
= $(OBJCOPY
) --debugging
482 COFFCONVERT
+= --change-section-address .data-0x800000
483 COFFCONVERT
+= --change-section-address .bss-0x800000
484 COFFCONVERT
+= --change-section-address .noinit-0x800000
485 COFFCONVERT
+= --change-section-address .eeprom-0x810000
491 @echo
$(MSG_COFF
) $(TARGET
).cof
492 $(COFFCONVERT
) -O coff-avr
$< $(TARGET
).cof
495 extcoff
: $(TARGET
).elf
497 @echo
$(MSG_EXTENDED_COFF
) $(TARGET
).cof
498 $(COFFCONVERT
) -O coff-ext-avr
$< $(TARGET
).cof
502 # Create final output files (.hex, .eep) from ELF output file.
505 @echo
$(MSG_FLASH
) $@
506 $(OBJCOPY
) -O
$(FORMAT
) -R .eeprom
-R .fuse
-R .lock
-R .signature
$< $@
510 @echo
$(MSG_EEPROM
) $@
511 -$(OBJCOPY
) -j .eeprom
--set-section-flags
=.eeprom
="alloc,load" \
512 --change-section-lma .eeprom
=0 --no-change-warnings
-O
$(FORMAT
) $< $@ || exit
0
514 # Create extended listing file from ELF output file.
517 @echo
$(MSG_EXTENDED_LISTING
) $@
518 $(OBJDUMP
) -h
-S
-z
$< > $@
520 # Create a symbol table from ELF output file.
523 @echo
$(MSG_SYMBOL_TABLE
) $@
528 # Create library from object files.
529 .SECONDARY
: $(TARGET
).a
533 @echo
$(MSG_CREATING_LIBRARY
) $@
537 # Link: create ELF output file from object files.
538 .SECONDARY
: $(TARGET
).elf
542 @echo
$(MSG_LINKING
) $@
543 $(CC
) $(ALL_CFLAGS
) $^
--output
$@
$(LDFLAGS
)
546 # Compile: create object files from C source files.
549 @echo
$(MSG_COMPILING
) $<
550 $(CC
) -c
$(ALL_CFLAGS
) $< -o
$@
553 # Compile: create object files from C++ source files.
554 $(OBJDIR
)/%.o
: %.
cpp
556 @echo
$(MSG_COMPILING_CPP
) $<
557 $(CC
) -c
$(ALL_CPPFLAGS
) $< -o
$@
560 # Compile: create assembler files from C source files.
562 $(CC
) -S
$(ALL_CFLAGS
) $< -o
$@
565 # Compile: create assembler files from C++ source files.
567 $(CC
) -S
$(ALL_CPPFLAGS
) $< -o
$@
570 # Assemble: create object files from assembler source files.
573 @echo
$(MSG_ASSEMBLING
) $<
574 $(CC
) -c
$(ALL_ASFLAGS
) $< -o
$@
577 # Create preprocessed source for use in sending a bug report.
579 $(CC
) -E
-mmcu
=$(MCU
) -I.
$(CFLAGS
) $< -o
$@
582 # Target: clean project.
583 clean: begin clean_list end
587 @echo
$(MSG_CLEANING
)
588 $(REMOVE
) $(TARGET
).hex
589 $(REMOVE
) $(TARGET
).eep
590 $(REMOVE
) $(TARGET
).cof
591 $(REMOVE
) $(TARGET
).elf
592 $(REMOVE
) $(TARGET
).map
593 $(REMOVE
) $(TARGET
).sym
594 $(REMOVE
) $(TARGET
).lss
595 $(REMOVE
) $(SRC
:%.c
=$(OBJDIR
)/%.o
)
596 $(REMOVE
) $(SRC
:%.c
=$(OBJDIR
)/%.lst
)
597 $(REMOVE
) $(SRC
:.c
=.s
)
598 $(REMOVE
) $(SRC
:.c
=.d
)
599 $(REMOVE
) $(SRC
:.c
=.i
)
603 # Create object files directory
604 $(shell mkdir
$(OBJDIR
) 2>/dev
/null
)
607 # Include the dependency files.
608 -include $(shell mkdir .dep
2>/dev
/null
) $(wildcard .dep
/*)
611 # Listing of phony targets.
612 .PHONY
: all begin finish end sizebefore sizeafter gccversion \
613 build elf hex eep lss sym coff extcoff \
614 clean clean_list program debug gdb-config