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.)
51 usb_keyboard_debug.c \
55 # MCU name, you MUST set this to match the board you are using
56 # type "make clean" after changing this, so all files will be rebuilt
57 #MCU = at90usb162 # Teensy 1.0
58 MCU
= atmega32u4
# Teensy 2.0
59 #MCU = at90usb646 # Teensy++ 1.0
60 #MCU = at90usb1286 # Teensy++ 2.0
63 # Processor frequency.
64 # Normally the first thing your program should do is set the clock prescaler,
65 # so your program will run at the correct speed. You should also set this
66 # variable to same clock speed. The _delay_ms() macro uses this, and many
67 # examples use this variable to calculate timings. Do not add a "UL" here.
71 # Output format. (can be srec, ihex, binary)
75 # Object files directory
76 # To put object files in current directory, use a dot (.), do NOT make
77 # this an empty or blank macro!
81 # List C++ source files here. (C dependencies are automatically generated.)
85 # List Assembler source files here.
86 # Make them always end in a capital .S. Files ending in a lowercase .s
87 # will not be considered source files but generated files (assembler
88 # output from the compiler), and will be deleted upon "make clean"!
89 # Even though the DOS/Win* filesystem matches both .s and .S the same,
90 # it will preserve the spelling of the filenames, and gcc itself does
91 # care about how the name is spelled on its command-line.
95 # Optimization level, can be [0, 1, 2, 3, s].
96 # 0 = turn off optimization. s = optimize for size.
97 # (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
102 # Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.
103 # AVR Studio 4.10 requires dwarf-2.
104 # AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.
108 # List any extra directories to look for include files here.
109 # Each directory must be seperated by a space.
110 # Use forward slashes for directory separators.
111 # For a directory that has spaces, enclose it in quotes.
115 # Compiler flag to set the C Standard level.
117 # gnu89 = c89 plus GCC extensions
118 # c99 = ISO C99 standard (not yet fully implemented)
119 # gnu99 = c99 plus GCC extensions
120 CSTANDARD
= -std
=gnu99
123 # Place -D or -U options here for C sources
124 CDEFS
= -DF_CPU
=$(F_CPU
)UL
127 # Place -D or -U options here for ASM sources
128 ADEFS
= -DF_CPU
=$(F_CPU
)
131 # Place -D or -U options here for C++ sources
132 CPPDEFS
= -DF_CPU
=$(F_CPU
)UL
133 #CPPDEFS += -D__STDC_LIMIT_MACROS
134 #CPPDEFS += -D__STDC_CONSTANT_MACROS
138 #---------------- Compiler Options C ----------------
139 # -g*: generate debugging information
140 # -O*: optimization level
141 # -f...: tuning, see GCC manual and avr-libc documentation
142 # -Wall...: warning level
143 # -Wa,...: tell GCC to pass this to the assembler.
144 # -adhlns...: create assembler listing
148 CFLAGS
+= -funsigned-char
149 CFLAGS
+= -funsigned-bitfields
150 CFLAGS
+= -ffunction-sections
151 CFLAGS
+= -fpack-struct
152 CFLAGS
+= -fshort-enums
154 CFLAGS
+= -Wstrict-prototypes
155 #CFLAGS += -mshort-calls
156 #CFLAGS += -fno-unit-at-a-time
158 #CFLAGS += -Wunreachable-code
159 #CFLAGS += -Wsign-compare
160 CFLAGS
+= -Wa
,-adhlns
=$(<:%.c
=$(OBJDIR
)/%.lst
)
161 CFLAGS
+= $(patsubst %,-I
%,$(EXTRAINCDIRS
))
162 CFLAGS
+= $(CSTANDARD
)
165 #---------------- Compiler Options C++ ----------------
166 # -g*: generate debugging information
167 # -O*: optimization level
168 # -f...: tuning, see GCC manual and avr-libc documentation
169 # -Wall...: warning level
170 # -Wa,...: tell GCC to pass this to the assembler.
171 # -adhlns...: create assembler listing
172 CPPFLAGS
= -g
$(DEBUG
)
173 CPPFLAGS
+= $(CPPDEFS
)
175 CPPFLAGS
+= -funsigned-char
176 CPPFLAGS
+= -funsigned-bitfields
177 CPPFLAGS
+= -fpack-struct
178 CPPFLAGS
+= -fshort-enums
179 CPPFLAGS
+= -fno-exceptions
182 #CPPFLAGS += -mshort-calls
183 #CPPFLAGS += -fno-unit-at-a-time
184 #CPPFLAGS += -Wstrict-prototypes
185 #CPPFLAGS += -Wunreachable-code
186 #CPPFLAGS += -Wsign-compare
187 CPPFLAGS
+= -Wa
,-adhlns
=$(<:%.
cpp=$(OBJDIR
)/%.lst
)
188 CPPFLAGS
+= $(patsubst %,-I
%,$(EXTRAINCDIRS
))
189 #CPPFLAGS += $(CSTANDARD)
192 #---------------- Assembler Options ----------------
193 # -Wa,...: tell GCC to pass this to the assembler.
194 # -adhlns: create listing
195 # -gstabs: have the assembler create line number information; note that
196 # for use in COFF files, additional information about filenames
197 # and function names needs to be present in the assembler source
198 # files -- see avr-libc docs [FIXME: not yet described there]
199 # -listing-cont-lines: Sets the maximum number of continuation lines of hex
200 # dump that will be displayed for a given single line of source input.
201 ASFLAGS
= $(ADEFS
) -Wa
,-adhlns
=$(<:%.S
=$(OBJDIR
)/%.lst
),-gstabs
,--listing-cont-lines
=100
204 #---------------- Library Options ----------------
205 # Minimalistic printf version
206 PRINTF_LIB_MIN
= -Wl
,-u
,vfprintf
-lprintf_min
208 # Floating point printf version (requires MATH_LIB = -lm below)
209 PRINTF_LIB_FLOAT
= -Wl
,-u
,vfprintf
-lprintf_flt
211 # If this is left blank, then it will use the Standard printf version.
213 #PRINTF_LIB = $(PRINTF_LIB_MIN)
214 #PRINTF_LIB = $(PRINTF_LIB_FLOAT)
217 # Minimalistic scanf version
218 SCANF_LIB_MIN
= -Wl
,-u
,vfscanf
-lscanf_min
220 # Floating point + %[ scanf version (requires MATH_LIB = -lm below)
221 SCANF_LIB_FLOAT
= -Wl
,-u
,vfscanf
-lscanf_flt
223 # If this is left blank, then it will use the Standard scanf version.
225 #SCANF_LIB = $(SCANF_LIB_MIN)
226 #SCANF_LIB = $(SCANF_LIB_FLOAT)
232 # List any extra directories to look for libraries here.
233 # Each directory must be seperated by a space.
234 # Use forward slashes for directory separators.
235 # For a directory that has spaces, enclose it in quotes.
240 #---------------- External Memory Options ----------------
242 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
243 # used for variables (.data/.bss) and heap (malloc()).
244 #EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
246 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
247 # only used for heap (malloc()).
248 #EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
254 #---------------- Linker Options ----------------
255 # -Wl,...: tell GCC to pass this to linker.
256 # -Map: create map file
257 # --cref: add cross reference to map file
258 LDFLAGS
= -Wl
,-Map
=$(TARGET
).map
,--cref
259 LDFLAGS
+= -Wl
,--relax
260 LDFLAGS
+= -Wl
,--gc-sections
261 LDFLAGS
+= $(EXTMEMOPTS
)
262 LDFLAGS
+= $(patsubst %,-L
%,$(EXTRALIBDIRS
))
263 LDFLAGS
+= $(PRINTF_LIB
) $(SCANF_LIB
) $(MATH_LIB
)
264 #LDFLAGS += -T linker_script.x
268 #---------------- Programming Options (avrdude) ----------------
270 # Programming hardware
272 # to get a full listing.
274 AVRDUDE_PROGRAMMER
= stk500v2
276 # com1 = serial port. Use lpt1 to connect to parallel port.
277 AVRDUDE_PORT
= com1
# programmer connected to serial device
279 AVRDUDE_WRITE_FLASH
= -U flash
:w
:$(TARGET
).hex
280 #AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
283 # Uncomment the following if you want avrdude's erase cycle counter.
284 # Note that this counter needs to be initialized first using -Yn,
285 # see avrdude manual.
286 #AVRDUDE_ERASE_COUNTER = -y
288 # Uncomment the following if you do /not/ wish a verification to be
289 # performed after programming the device.
290 #AVRDUDE_NO_VERIFY = -V
292 # Increase verbosity level. Please use this when submitting bug
293 # reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
294 # to submit bug reports.
295 #AVRDUDE_VERBOSE = -v -v
297 AVRDUDE_FLAGS
= -p
$(MCU
) -P
$(AVRDUDE_PORT
) -c
$(AVRDUDE_PROGRAMMER
)
298 AVRDUDE_FLAGS
+= $(AVRDUDE_NO_VERIFY
)
299 AVRDUDE_FLAGS
+= $(AVRDUDE_VERBOSE
)
300 AVRDUDE_FLAGS
+= $(AVRDUDE_ERASE_COUNTER
)
304 #---------------- Debugging Options ----------------
306 # For simulavr only - target MCU frequency.
307 DEBUG_MFREQ
= $(F_CPU
)
309 # Set the DEBUG_UI to either gdb or insight.
313 # Set the debugging back-end to either avarice, simulavr.
314 DEBUG_BACKEND
= avarice
315 #DEBUG_BACKEND = simulavr
318 GDBINIT_FILE
= __avr_gdbinit
320 # When using avarice settings for the JTAG
323 # Debugging port used to communicate between GDB / avarice / simulavr.
326 # Debugging host used to communicate between GDB / avarice / simulavr, normally
327 # just set to localhost unless doing some sort of crazy debugging when
328 # avarice is running on a different computer.
329 DEBUG_HOST
= localhost
333 #============================================================================
336 # Define programs and commands.
339 OBJCOPY
= avr-objcopy
340 OBJDUMP
= avr-objdump
353 MSG_ERRORS_NONE
= Errors
: none
354 MSG_BEGIN
= -------- begin
--------
355 MSG_END
= -------- end
--------
356 MSG_SIZE_BEFORE
= Size before
:
357 MSG_SIZE_AFTER
= Size after
:
358 MSG_COFF
= Converting to AVR COFF
:
359 MSG_EXTENDED_COFF
= Converting to AVR Extended COFF
:
360 MSG_FLASH
= Creating load file for Flash
:
361 MSG_EEPROM
= Creating load file for EEPROM
:
362 MSG_EXTENDED_LISTING
= Creating Extended Listing
:
363 MSG_SYMBOL_TABLE
= Creating Symbol Table
:
364 MSG_LINKING
= Linking
:
365 MSG_COMPILING
= Compiling C
:
366 MSG_COMPILING_CPP
= Compiling C
++:
367 MSG_ASSEMBLING
= Assembling
:
368 MSG_CLEANING
= Cleaning project
:
369 MSG_CREATING_LIBRARY
= Creating library
:
374 # Define all object files.
375 OBJ
= $(SRC
:%.c
=$(OBJDIR
)/%.o
) $(CPPSRC
:%.
cpp=$(OBJDIR
)/%.o
) $(ASRC
:%.S
=$(OBJDIR
)/%.o
)
377 # Define all listing files.
378 LST
= $(SRC
:%.c
=$(OBJDIR
)/%.lst
) $(CPPSRC
:%.
cpp=$(OBJDIR
)/%.lst
) $(ASRC
:%.S
=$(OBJDIR
)/%.lst
)
381 # Compiler flags to generate dependency files.
382 GENDEPFLAGS
= -MMD
-MP
-MF .dep
/$(@F
).d
385 # Combine all necessary flags and optional flags.
386 # Add target processor to flags.
387 ALL_CFLAGS
= -mmcu
=$(MCU
) -I.
$(CFLAGS
) $(GENDEPFLAGS
)
388 ALL_CPPFLAGS
= -mmcu
=$(MCU
) -I.
-x c
++ $(CPPFLAGS
) $(GENDEPFLAGS
)
389 ALL_ASFLAGS
= -mmcu
=$(MCU
) -I.
-x assembler-with-cpp
$(ASFLAGS
)
396 all: begin gccversion sizebefore build sizeafter end
398 # Change the build target to build a HEX file or a library.
399 build
: elf hex eep lss sym
408 LIBNAME
=lib
$(TARGET
).a
414 # AVR Studio 3.x does not check make's exit code but relies on
415 # the following magic strings to be generated by the compile job.
425 # Display size of file.
426 HEXSIZE
= $(SIZE
) --target
=$(FORMAT
) $(TARGET
).hex
427 #ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
428 ELFSIZE
= $(SIZE
) $(TARGET
).elf
431 @if
test -f
$(TARGET
).elf
; then echo
; echo
$(MSG_SIZE_BEFORE
); $(ELFSIZE
); \
432 2>/dev
/null
; echo
; fi
435 @if
test -f
$(TARGET
).elf
; then echo
; echo
$(MSG_SIZE_AFTER
); $(ELFSIZE
); \
436 2>/dev
/null
; echo
; fi
440 # Display compiler version information.
446 # Program the device.
447 program
: $(TARGET
).hex
$(TARGET
).eep
448 $(AVRDUDE
) $(AVRDUDE_FLAGS
) $(AVRDUDE_WRITE_FLASH
) $(AVRDUDE_WRITE_EEPROM
)
451 # Generate avr-gdb config/init file which does the following:
452 # define the reset signal, load the target file, connect to target, and set
453 # a breakpoint at main().
455 @
$(REMOVE
) $(GDBINIT_FILE
)
456 @echo
define reset
>> $(GDBINIT_FILE
)
457 @echo SIGNAL SIGHUP
>> $(GDBINIT_FILE
)
458 @echo end
>> $(GDBINIT_FILE
)
459 @echo file
$(TARGET
).elf
>> $(GDBINIT_FILE
)
460 @echo target remote
$(DEBUG_HOST
):$(DEBUG_PORT
) >> $(GDBINIT_FILE
)
461 ifeq ($(DEBUG_BACKEND
),simulavr
)
462 @echo load
>> $(GDBINIT_FILE
)
464 @echo break main
>> $(GDBINIT_FILE
)
466 debug
: gdb-config
$(TARGET
).elf
467 ifeq ($(DEBUG_BACKEND
), avarice
)
468 @echo Starting AVaRICE
- Press enter when
"waiting to connect" message displays.
469 @
$(WINSHELL
) /c start avarice
--jtag
$(JTAG_DEV
) --erase
--program
--file \
470 $(TARGET
).elf
$(DEBUG_HOST
):$(DEBUG_PORT
)
471 @
$(WINSHELL
) /c pause
474 @
$(WINSHELL
) /c start simulavr
--gdbserver
--device
$(MCU
) --clock-freq \
475 $(DEBUG_MFREQ
) --port
$(DEBUG_PORT
)
477 @
$(WINSHELL
) /c start avr-
$(DEBUG_UI
) --command
=$(GDBINIT_FILE
)
482 # Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
483 COFFCONVERT
= $(OBJCOPY
) --debugging
484 COFFCONVERT
+= --change-section-address .data-0x800000
485 COFFCONVERT
+= --change-section-address .bss-0x800000
486 COFFCONVERT
+= --change-section-address .noinit-0x800000
487 COFFCONVERT
+= --change-section-address .eeprom-0x810000
493 @echo
$(MSG_COFF
) $(TARGET
).cof
494 $(COFFCONVERT
) -O coff-avr
$< $(TARGET
).cof
497 extcoff
: $(TARGET
).elf
499 @echo
$(MSG_EXTENDED_COFF
) $(TARGET
).cof
500 $(COFFCONVERT
) -O coff-ext-avr
$< $(TARGET
).cof
504 # Create final output files (.hex, .eep) from ELF output file.
507 @echo
$(MSG_FLASH
) $@
508 $(OBJCOPY
) -O
$(FORMAT
) -R .eeprom
-R .fuse
-R .lock
-R .signature
$< $@
512 @echo
$(MSG_EEPROM
) $@
513 -$(OBJCOPY
) -j .eeprom
--set-section-flags
=.eeprom
="alloc,load" \
514 --change-section-lma .eeprom
=0 --no-change-warnings
-O
$(FORMAT
) $< $@ || exit
0
516 # Create extended listing file from ELF output file.
519 @echo
$(MSG_EXTENDED_LISTING
) $@
520 $(OBJDUMP
) -h
-S
-z
$< > $@
522 # Create a symbol table from ELF output file.
525 @echo
$(MSG_SYMBOL_TABLE
) $@
530 # Create library from object files.
531 .SECONDARY
: $(TARGET
).a
535 @echo
$(MSG_CREATING_LIBRARY
) $@
539 # Link: create ELF output file from object files.
540 .SECONDARY
: $(TARGET
).elf
544 @echo
$(MSG_LINKING
) $@
545 $(CC
) $(ALL_CFLAGS
) $^
--output
$@
$(LDFLAGS
)
548 # Compile: create object files from C source files.
551 @echo
$(MSG_COMPILING
) $<
552 $(CC
) -c
$(ALL_CFLAGS
) $< -o
$@
555 # Compile: create object files from C++ source files.
556 $(OBJDIR
)/%.o
: %.
cpp
558 @echo
$(MSG_COMPILING_CPP
) $<
559 $(CC
) -c
$(ALL_CPPFLAGS
) $< -o
$@
562 # Compile: create assembler files from C source files.
564 $(CC
) -S
$(ALL_CFLAGS
) $< -o
$@
567 # Compile: create assembler files from C++ source files.
569 $(CC
) -S
$(ALL_CPPFLAGS
) $< -o
$@
572 # Assemble: create object files from assembler source files.
575 @echo
$(MSG_ASSEMBLING
) $<
576 $(CC
) -c
$(ALL_ASFLAGS
) $< -o
$@
579 # Create preprocessed source for use in sending a bug report.
581 $(CC
) -E
-mmcu
=$(MCU
) -I.
$(CFLAGS
) $< -o
$@
584 # Target: clean project.
585 clean: begin clean_list end
589 @echo
$(MSG_CLEANING
)
590 $(REMOVE
) $(TARGET
).hex
591 $(REMOVE
) $(TARGET
).eep
592 $(REMOVE
) $(TARGET
).cof
593 $(REMOVE
) $(TARGET
).elf
594 $(REMOVE
) $(TARGET
).map
595 $(REMOVE
) $(TARGET
).sym
596 $(REMOVE
) $(TARGET
).lss
597 $(REMOVE
) $(SRC
:%.c
=$(OBJDIR
)/%.o
)
598 $(REMOVE
) $(SRC
:%.c
=$(OBJDIR
)/%.lst
)
599 $(REMOVE
) $(SRC
:.c
=.s
)
600 $(REMOVE
) $(SRC
:.c
=.d
)
601 $(REMOVE
) $(SRC
:.c
=.i
)
605 # Create object files directory
606 $(shell mkdir
$(OBJDIR
) 2>/dev
/null
)
609 # Include the dependency files.
610 -include $(shell mkdir .dep
2>/dev
/null
) $(wildcard .dep
/*)
613 # Listing of phony targets.
614 .PHONY
: all begin finish end sizebefore sizeafter gccversion \
615 build elf hex eep lss sym coff extcoff \
616 clean clean_list program debug gdb-config