438 lines
12 KiB
Text
438 lines
12 KiB
Text
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# Hey Emacs, this is a -*- makefile -*-
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#----------------------------------------------------------------------------
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# avr-gcc Makefile
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#
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# by Steffen Vogel <post@steffenvogel.de>
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#
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# Released to the Public Domain - Credits to:
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# Eric B. Weddington, Jörg Wunsch, Peter Fleury, Tim Henigan Colin O'Flynn,
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# Reiner Patommel, Markus Pfaff, Sander Pool, Frederik Rouleau, Carlos Lamas
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#----------------------------------------------------------------------------
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# On command line:
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#
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# make all = Make software
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#
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# make clean = Clean out built project files
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#
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# make program = Download the hex file to the device, using avrdude
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# Please customize the avrdude settings below first!
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#
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# make filename.s = Just compile filename.c into the assembler code only
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#
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# make filename.i = Create a preprocessed source file for use in submitting
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# bug reports to the GCC project.
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#
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# To rebuild project do "make clean" then "make all".
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#----------------------------------------------------------------------------
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#------------------------------ General Options -----------------------------
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# MCU name
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#MCU = atmega8
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MCU = atmega328p
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# Processor frequency
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# This will define a symbol, F_CPU, in all source code files equal to the
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# processor frequency. You can then use this symbol in your source code to
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# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
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# automatically to create a 32-bit value in your source code.
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# Typical values are:
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#F_CPU = 1000000
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#F_CPU = 1843200
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#F_CPU = 2000000
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#F_CPU = 3686400
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#F_CPU = 4000000
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#F_CPU = 7372800
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#F_CPU = 8000000
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#F_CPU = 11059200
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F_CPU = 14745600
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#F_CPU = 16000000
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#F_CPU = 18432000
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#F_CPU = 20000000
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# Output format
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#FORMAT = srec
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#FORMAT = binary
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FORMAT = ihex
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# Target file name (without extension)
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TARGET = main
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# Object files directory
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OBJDIR = obj
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# List C source files here (C dependencies are automatically generated)
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SRC = $(TARGET).c lcd.c uart.c
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# List C++ source files here (C dependencies are automatically generated)
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CPPSRC =
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# List Assembler source files here
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# Make them always end in a capital .S. Files ending in a lowercase .s
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# will not be considered source files but generated files (assembler
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# output from the compiler), and will be deleted upon "make clean"!
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# Even though the DOS/Win* filesystem matches both .s and .S the same,
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# it will preserve the spelling of the filenames, and gcc itself does
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# are about how the name is spelled on its command-line.
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ASRC =
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# Optimization level, can be [0, 1, 2, 3, ..., s]
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# 0 = turn off optimization
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# s = optimize for size
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# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
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OPT = s
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# Debugging format
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# Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.
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# AVR Studio 4.10 requires dwarf-2.
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# AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.
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DEBUG = dwarf-2
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# List any extra directories to look for include files here.
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# Each directory must be seperated by a space.
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# Use forward slashes for directory separators.
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# For a directory that has spaces, enclose it in quotes.
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EXTRAINCDIRS =
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# Compiler flag to set the C Standard level
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# c89 = "ANSI" C
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# gnu89 = c89 plus GCC extensions
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# c99 = ISO C99 standard (not yet fully implemented)
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# gnu99 = c99 plus GCC extensions
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CSTANDARD = -std=gnu99
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# Place -D or -U options here for C sources
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CDEFS = -DF_CPU=$(F_CPU)UL
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# Place -D or -U options here for C++ sources
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#CPPDEFS += -D__STDC_LIMIT_MACROS
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#CPPDEFS += -D__STDC_CONSTANT_MACROS
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CPPDEFS = -DF_CPU=$(F_CPU)UL
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#------------------------------ Compiler Options -----------------------------
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# C Compiler Options
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# -g generate debugging information
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# -O optimization level
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# -f tuning, see GCC manual and avr-libc documentation
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# -Wall warning level
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# -Wa tell GCC to pass this to the assembler.
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# -adhlns create assembler listing
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#CFLAGS = -g$(DEBUG)
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#CFLAGS += -mint8
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#CFLAGS += -mshort-calls
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#CFLAGS += -Wunreachable-code
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#CFLAGS += -Wsign-compare
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CFLAGS += -Wall
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CFLAGS += -Wstrict-prototypes
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CFLAGS += -Wundef
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#CFLAGS += -fno-unit-at-a-time
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CFLAGS += -funsigned-char
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CFLAGS += -funsigned-bitfields
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CFLAGS += -fpack-struct
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CFLAGS += -fshort-enums
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CFLAGS += $(CDEFS)
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CFLAGS += -O$(OPT)
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CFLAGS += -Wa,-adhlns=$(<:%.c=$(OBJDIR)/%.lst)
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CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
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CFLAGS += $(CSTANDARD)
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# C++ Compiler Options
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# -g generate debugging information
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# -O optimization level
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# -f tuning, see GCC manual and avr-libc documentation
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# -Wall warning level
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# -Wa tell GCC to pass this to the assembler.
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# -adhlns create assembler listing
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#CPPFLAGS = -g$(DEBUG)
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#CPPFLAGS += -mint8
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#CPPFLAGS += -mshort-calls
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#CPPFLAGS += $(CSTANDARD)
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#CPPFLAGS += -Wstrict-prototypes
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#CPPFLAGS += -Wunreachable-code
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#CPPFLAGS += -Wsign-compare
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CPPFLAGS += -Wall
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CFLAGS += -Wundef
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#CPPFLAGS += -fno-unit-at-a-time
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CPPFLAGS += -funsigned-char
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CPPFLAGS += -funsigned-bitfields
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CPPFLAGS += -fpack-struct
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CPPFLAGS += -fshort-enums
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CPPFLAGS += -fno-exceptions
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CPPFLAGS += $(CPPDEFS)
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CPPFLAGS += -O$(OPT)
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CPPFLAGS += -Wa,-adhlns=$(<:%.cpp=$(OBJDIR)/%.lst)
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CPPFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
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# Assembler Options
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# -Wa tell GCC to pass this to the assembler.
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# -adhlms create listing
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# -gstabs have the assembler create line number information;
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# note that for use in COFF files, additional information
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# about filenames and function names needs to be present
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# in the assembler source files
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ASFLAGS = -Wa,-adhlns=$(<:%.S=$(OBJDIR)/%.lst),-gstabs
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#------------------------------ Library Options ------------------------------
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# Minimalistic printf version
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PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
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# Floating point printf version (requires MATH_LIB = -lm below)
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PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
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# If this is left blank, then it will use the Standard printf version.
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#PRINTF_LIB = $(PRINTF_LIB_MIN)
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#PRINTF_LIB = $(PRINTF_LIB_FLOAT)
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PRINTF_LIB =
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# Minimalistic scanf version
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SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
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# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
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SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
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# If this is left blank, then it will use the Standard scanf version.
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#SCANF_LIB = $(SCANF_LIB_MIN)
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#SCANF_LIB = $(SCANF_LIB_FLOAT)
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SCANF_LIB =
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MATH_LIB = -lm
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#-------------------------- External Memory Options --------------------------
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# 64 KB of external RAM, starting after internal RAM (ATmega128!),
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# used for variables (.data/.bss) and heap (malloc()).
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#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
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# 64 KB of external RAM, starting after internal RAM (ATmega128!),
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# only used for heap (malloc()).
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#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff
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EXTMEMOPTS =
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#------------------------------- Linker Options ------------------------------
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# -Wl tell GCC to pass this to linker.
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# -Map create map file
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# --cref add cross reference to map file
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LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
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LDFLAGS += $(EXTMEMOPTS)
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LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
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#------------------------ Programmer Options (avrdude) -----------------------
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# Programmer hardware
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# avr910
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# avrisp
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# arduino
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# picoweb
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# pony-stk200
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# stk200
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# stk500
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# "avrdude -c ?" to get a full listing
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#AVRDUDE_PROGRAMMER = avr910
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AVRDUDE_PROGRAMMER = usbasp
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# The port your programmer is connected to
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#AVRDUDE_PORT = /dev/ttyUSB0
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#AVRDUDE_PORT = /dev/ttyS0
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AVRDUDE_PORT = usb
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AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
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#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
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# Uncomment the following if you want avrdude's erase cycle counter.
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# Note that this counter needs to be initialized first using -Yn,
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# see avrdude manual.
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#AVRDUDE_ERASE_COUNTER = -y
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# Uncomment the following if you do /not/ wish a verification to be
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# performed after programming the device.
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#AVRDUDE_NO_VERIFY = -V
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# Increase verbosity level
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#AVRDUDE_VERBOSE = -v -v
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AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
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AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
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AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
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AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
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#=========================== End of Configuration ===========================
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# Define programs and commands.
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SHELL = bash
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CC = avr-gcc
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OBJCOPY = avr-objcopy
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OBJDUMP = avr-objdump
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SIZE = avr-size
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NM = avr-nm
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AVRDUDE = avrdude
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RM = rm -f
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RMDIR = rm -rf
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COPY = cp
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# Define messages (english)
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MSG_ERRORS_NONE = Errors: none
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MSG_SIZE_BEFORE = Size before:
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MSG_SIZE_AFTER = Size after:
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MSG_FLASH = Creating load file for Flash:
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MSG_EEPROM = Creating load file for EEPROM:
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MSG_BINARY = Creating binary:
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MSG_EXTENDED_LISTING = Creating Extended Listing:
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MSG_SYMBOL_TABLE = Creating Symbol Table:
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MSG_LINKING = Linking:
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MSG_COMPILING = Compiling C:
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MSG_COMPILING_CPP = Compiling C++:
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MSG_ASSEMBLING = Assembling:
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MSG_CLEANING = Cleaning project:
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MSG_CREATING_LIBRARY = Creating library:
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MSG_PROGRAM = Flashing controller:
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# Define all object files
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OBJ = $(SRC:%.c=$(OBJDIR)/%.o) $(CPPSRC:%.cpp=$(OBJDIR)/%.o) $(ASRC:%.S=$(OBJDIR)/%.o)
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# Define all listing files
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LST = $(SRC:%.c=$(OBJDIR)/%.lst) $(CPPSRC:%.cpp=$(OBJDIR)/%.lst) $(ASRC:%.S=$(OBJDIR)/%.lst)
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# Compiler flags to generate dependency files
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GENDEPFLAGS = -MD -MP -MF .dep/$(@F).d
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# Combine all necessary flags and optional flags
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# Add target processor to flags
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ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
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ALL_CPPFLAGS = -mmcu=$(MCU) -I. -x c++ $(CPPFLAGS) $(GENDEPFLAGS)
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ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
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# Default target
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all: gccversion sizebefore build sizeafter
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# Change the build target to build a HEX file or a library
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build: elf hex eep bin lss sym
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#build: lib
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#LIBNAME=lib$(TARGET).a
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elf: $(TARGET).elf
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hex: $(TARGET).hex
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eep: $(TARGET).eep
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bin: $(TARGET).bin
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lss: $(TARGET).lss
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sym: $(TARGET).sym
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lib: $(LIBNAME)
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# Display size of file
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HEXSIZE = $(SIZE) --target=$(FORMAT) --format=avr --mcu $(MCU) $(TARGET).hex
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ELFSIZE = $(SIZE) -A $(TARGET).elf --format=avr --mcu $(MCU)
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sizebefore:
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@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); fi
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sizeafter:
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@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); fi
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# Display compiler version information
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gccversion:
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@$(CC) --version
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# Program the device
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program: $(TARGET).hex $(TARGET).eep
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@echo $(MSG_PROGRAM)
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@echo
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$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH)
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$(AVRDUDE_WRITE_EEPROM)
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# Create final output files (.hex, .eep) from ELF output file
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%.hex: %.elf
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@echo
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@echo $(MSG_FLASH) $@
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$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
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%.eep: %.elf
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@echo
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@echo $(MSG_EEPROM) $@
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$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
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# Create binary output
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%.bin: %.elf
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@echo
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@echo $(MSG_BINARY) $@
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$(OBJCOPY) $(TARGET).elf -O binary $(TARGET).bin
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# Create extended listing file from ELF output file
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%.lss: %.elf
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@echo
|
||
|
|
@echo $(MSG_EXTENDED_LISTING) $@
|
||
|
|
$(OBJDUMP) -h -S $< > $@
|
||
|
|
|
||
|
|
# Create a symbol table from ELF output file
|
||
|
|
%.sym: %.elf
|
||
|
|
@echo
|
||
|
|
@echo $(MSG_SYMBOL_TABLE) $@
|
||
|
|
$(NM) -n $< > $@
|
||
|
|
|
||
|
|
# Create library from object files
|
||
|
|
.SECONDARY: $(TARGET).a
|
||
|
|
.PRECIOUS: $(OBJ)
|
||
|
|
%.a: $(OBJ)
|
||
|
|
@echo
|
||
|
|
@echo $(MSG_CREATING_LIBRARY) $@
|
||
|
|
$(AR) $@ $(OBJ)
|
||
|
|
|
||
|
|
# Link: create ELF output file from object files
|
||
|
|
.SECONDARY : $(TARGET).elf
|
||
|
|
.PRECIOUS : $(OBJ)
|
||
|
|
%.elf: $(OBJ)
|
||
|
|
@echo
|
||
|
|
@echo $(MSG_LINKING) $@
|
||
|
|
$(CC) $(ALL_CFLAGS) $^ -o $@ $(LDFLAGS)
|
||
|
|
|
||
|
|
# Compile: create object files from C source files
|
||
|
|
$(OBJDIR)/%.o : %.c
|
||
|
|
@echo $(MSG_COMPILING) $<
|
||
|
|
$(CC) -c $(ALL_CFLAGS) $< -o $@
|
||
|
|
|
||
|
|
# Compile: create object files from C++ source files
|
||
|
|
$(OBJDIR)/%.o : %.cpp
|
||
|
|
@echo
|
||
|
|
@echo $(MSG_COMPILING_CPP) $<
|
||
|
|
$(CC) -c $(ALL_CPPFLAGS) $< -o $@
|
||
|
|
|
||
|
|
# Compile: create assembler files from C source files
|
||
|
|
%.s : %.c
|
||
|
|
$(CC) -S $(ALL_CFLAGS) $< -o $@
|
||
|
|
|
||
|
|
# Compile: create assembler files from C++ source files
|
||
|
|
%.s : %.cpp
|
||
|
|
$(CC) -S $(ALL_CPPFLAGS) $< -o $@
|
||
|
|
|
||
|
|
# Assemble: create object files from assembler source files
|
||
|
|
$(OBJDIR)/%.o : %.S
|
||
|
|
@echo
|
||
|
|
@echo $(MSG_ASSEMBLING) $<
|
||
|
|
$(CC) -c $(ALL_ASFLAGS) $< -o $@
|
||
|
|
|
||
|
|
# Create preprocessed source for use in sending a bug report
|
||
|
|
%.i : %.c
|
||
|
|
$(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@
|
||
|
|
|
||
|
|
# Clean project
|
||
|
|
clean:
|
||
|
|
@echo $(MSG_CLEANING)
|
||
|
|
$(RM) $(TARGET).bin
|
||
|
|
$(RM) $(TARGET).hex
|
||
|
|
$(RM) $(TARGET).eep
|
||
|
|
$(RM) $(TARGET).elf
|
||
|
|
$(RM) $(TARGET).map
|
||
|
|
$(RM) $(TARGET).sym
|
||
|
|
$(RM) $(TARGET).lss
|
||
|
|
$(RM) $(SRC:.c=.s)
|
||
|
|
$(RM) $(SRC:.c=.d)
|
||
|
|
$(RMDIR) $(OBJDIR)
|
||
|
|
$(RMDIR) .dep
|
||
|
|
|
||
|
|
# Create object files directory
|
||
|
|
mkdir $(OBJDIR)
|
||
|
|
|
||
|
|
# Include the dependency files
|
||
|
|
-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
|
||
|
|
|
||
|
|
# Listing of phony targets
|
||
|
|
.PHONY: all finish sizebefore sizeafter gccversion build elf hex eep lss sym clean program
|