git.defcon.no Git - avrfbosd/blob - Makefile

   1 # Hey Emacs, this is a -*- makefile -*-
   2
   3 # AVR-GCC Makefile template, derived from the WinAVR template (which
   4 # is public domain), believed to be neutral to any flavor of "make"
   5 # (GNU make, BSD make, SysV make)
   6 #
   7 # Adaptations by Jon Langseth <jon.langseth AT lilug.no>
   8 # This modified template is placed in the public domain like the original.
   9 #
  10
  11
  12 # Target name and MCU setup -------------------------------------------------
  13
  14 TARGET = fbosd
  15
  16 MCU = atmega328p
  17
  18 # Processor frequency.
  19 #     This will define a symbol, F_CPU, in all source code files equal to the
  20 #     processor frequency. You can then use this symbol in your source code to
  21 #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
  22 #     automatically to create a 32-bit value in your source code.
  23 #     Typical values are:
  24 #         F_CPU =  1000000
  25 #         F_CPU =  1843200
  26 #         F_CPU =  2000000
  27 #         F_CPU =  3686400
  28 #         F_CPU =  4000000
  29 #         F_CPU =  7372800
  30 #         F_CPU =  8000000
  31 #         F_CPU = 11059200
  32 #         F_CPU = 14745600
  33 #         F_CPU = 16000000
  34 #         F_CPU = 18432000
  35 #         F_CPU = 20000000
  36
  37 # Default settings:
  38 #F_CPU =  1000000
  39 # Fuse-bits. Recommended tool: http://www.engbedded.com/fusecalc/
  40 #FUSE_LOW  = 0x62
  41 #FUSE_HIGH = 0xD9
  42 #FUSE_EXT  = 0x7
  43
  44 # Fancy 20MHz settings:
  45 F_CPU = 20000000
  46 ## Fuse-bits. Recommended tool: http://www.engbedded.com/fusecalc/
  47 FUSE_LOW  = 0xAF
  48 FUSE_HIGH = 0xD9
  49 FUSE_EXT  = 0x7
  50
  51 # Source files to compile ---------------------------------------------------
  52
  53 # List C source files here. (C dependencies are automatically generated.)
  54 SRC = $(TARGET).c render.c draw.c
  55
  56 # List Assembler source files here.
  57 #     Make them always end in a capital .S.
  58 ASRC =
  59
  60 # Optimization level, can be [0, 1, 2, 3, s].
  61 #     0 = turn off optimization. s = optimize for size.
  62 #     (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
  63 OPT = 1
  64
  65 # Output formats and debug format -------------------------------------------
  66
  67 # Output format. (can be srec, ihex, binary)
  68 FORMAT = ihex
  69
  70 # Debugging format.
  71 # Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
  72 # AVR (extended) COFF requires stabs, plus an avr-objcopy run.
  73 DEBUG = dwarf-2
  74
  75 # Command names (and paths/parameters to them...) ---------------------------
  76
  77 CC = avr-gcc
  78 OBJCOPY = avr-objcopy
  79 OBJDUMP = avr-objdump
  80 SIZE = avr-size
  81 NM = avr-nm
  82 AVRDUDE = avrdude
  83 REMOVE = rm -f
  84 MV = mv -f
  85
  86 # Compiler flag to set the C Standard level.
  87 # c89   - "ANSI" C
  88 # gnu89 - c89 plus GCC extensions
  89 # c99   - ISO C99 standard (not yet fully implemented)
  90 # gnu99 - c99 plus GCC extensions
  91 CSTANDARD = -std=gnu99
  92
  93 # Place -D or -U options here
  94 CDEFS = -DF_CPU=$(F_CPU)UL
  95
  96 # Place -I options here
  97 CINCS =
  98
  99 CFLAGS = -g$(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CSTANDARD)
 100 CFLAGS += -funsigned-char
 101 CFLAGS += -funsigned-bitfields
 102 CFLAGS += -fpack-struct
 103 CFLAGS += -fshort-enums
 104 CFLAGS += -Wall
 105 CFLAGS += -Wstrict-prototypes
 106 #CFLAGS += -mshort-calls
 107 #CFLAGS += -fno-unit-at-a-time
 108 #CFLAGS += -Wundef
 109 #CFLAGS += -Wunreachable-code
 110 #CFLAGS += -Wsign-compare
 111
 112 #ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
 113
 114
 115 #Additional libraries.
 116
 117 MATH_LIB = -lm
 118
 119 # Minimalistic printf version
 120 PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
 121
 122 # Floating point printf version (requires MATH_LIB = -lm)
 123 PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
 124
 125 # If this is left blank, then it will use the Standard printf version.
 126 PRINTF_LIB =
 127 #PRINTF_LIB = $(PRINTF_LIB_MIN)
 128 #PRINTF_LIB = $(PRINTF_LIB_FLOAT)
 129
 130
 131 # Minimalistic scanf version
 132 SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
 133
 134 # Floating point + %[ scanf version (requires MATH_LIB = -lm)
 135 SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
 136
 137 # If this is left blank, then it will use the Standard scanf version.
 138 SCANF_LIB =
 139 #SCANF_LIB = $(SCANF_LIB_MIN)
 140 #SCANF_LIB = $(SCANF_LIB_FLOAT)
 141
 142
 143 # External memory options
 144
 145 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
 146 # used for variables (.data/.bss) and heap (malloc()).
 147 #EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
 148
 149 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
 150 # only used for heap (malloc()).
 151 #EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff
 152
 153 EXTMEMOPTS =
 154
 155
 156 #LDMAP = $(LDFLAGS) -Wl,-Map=$(TARGET).map,--cref
 157 LDFLAGS = $(EXTMEMOPTS) $(LDMAP) $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
 158
 159
 160 # Programming support using avrdude. Settings and variables.
 161
 162 AVRDUDE_PROGRAMMER = usbtiny
 163 AVRDUDE_PORT = usb
 164
 165 AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
 166 #AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
 167
 168
 169 # Uncomment the following if you want avrdude's erase cycle counter.
 170 # Note that this counter needs to be initialized first using -Yn,
 171 # see avrdude manual.
 172 #AVRDUDE_ERASE_COUNTER = -y
 173
 174 # Uncomment the following if you do /not/ wish a verification to be
 175 # performed after programming the device.
 176 #AVRDUDE_NO_VERIFY = -V
 177
 178 # Increase verbosity level.  Please use this when submitting bug
 179 # reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
 180 # to submit bug reports.
 181 #AVRDUDE_VERBOSE = -v -v
 182
 183 AVRDUDE_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
 184 AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE) $(AVRDUDE_ERASE_COUNTER)
 185
 186
 187 # Define all object files.
 188 OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
 189
 190 # Define all listing files.
 191 LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)
 192
 193 # Combine all necessary flags and optional flags.
 194 # Add target processor to flags.
 195 ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS)
 196 ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
 197
 198
 199 # Default target.
 200 all: build
 201
 202 build: elf hex eep size
 203
 204 elf: $(TARGET).elf
 205 hex: $(TARGET).hex
 206 eep: $(TARGET).eep
 207 lss: $(TARGET).lss
 208 sym: $(TARGET).sym
 209
 210 # Display size of file.
 211 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
 212 ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
 213
 214 size:
 215         @echo
 216         $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
 217         $(SIZE) --target=$(FORMAT) $(TARGET).hex
 218
 219 # Program the device.
 220 program: $(TARGET).hex $(TARGET).eep
 221         $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
 222
 223
 224 # make fuseread can be used to test programmer connectivity, and naturally to verify fuses..
 225 fuseread:
 226         $(AVRDUDE) $(AVRDUDE_BASIC) -q -U lfuse:r:-:h -U hfuse:r:-:h -U efuse:r:-:h
 227
 228 FUSES =
 229 ifdef FUSE_EXT
 230 FUSES += -U efuse:w:$(FUSE_EXT):m
 231 endif
 232 FUSES += -U hfuse:w:$(FUSE_HIGH):m
 233 FUSES += -U lfuse:w:$(FUSE_LOW):m
 234
 235 fusebits: $(TARGET).hex
 236         $(AVRDUDE) $(AVRDUDE_BASIC) $(FUSES)
 237 # Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
 238 COFFCONVERT=$(OBJCOPY) --debugging \
 239 --change-section-address .data-0x800000 \
 240 --change-section-address .bss-0x800000 \
 241 --change-section-address .noinit-0x800000 \
 242 --change-section-address .eeprom-0x810000
 243
 244
 245 coff: $(TARGET).elf
 246         $(COFFCONVERT) -O coff-avr $(TARGET).elf $(TARGET).cof
 247
 248
 249 extcoff: $(TARGET).elf
 250         $(COFFCONVERT) -O coff-ext-avr $(TARGET).elf $(TARGET).cof
 251
 252
 253 .SUFFIXES: .elf .hex .eep .lss .sym
 254
 255 .elf.hex:
 256         $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
 257
 258 .elf.eep:
 259         -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
 260         --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
 261
 262 # Create extended listing file from ELF output file.
 263 .elf.lss:
 264         $(OBJDUMP) -h -S $< > $@
 265
 266 # Create a symbol table from ELF output file.
 267 .elf.sym:
 268         $(NM) -n $< > $@
 269
 270
 271
 272 # Link: create ELF output file from object files.
 273 $(TARGET).elf: $(OBJ)
 274         $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
 275
 276
 277 # Compile: create object files from C source files.
 278 .c.o:
 279         $(CC) -c $(ALL_CFLAGS) $< -o $@
 280
 281
 282 # Compile: create assembler files from C source files.
 283 .c.s:
 284         $(CC) -S $(ALL_CFLAGS) $< -o $@
 285
 286
 287 # Assemble: create object files from assembler source files.
 288 .S.o:
 289         $(CC) -c $(ALL_ASFLAGS) $< -o $@
 290
 291
 292
 293 # Target: clean project.
 294 clean:
 295         $(REMOVE) $(TARGET).hex $(TARGET).eep $(TARGET).cof $(TARGET).elf \
 296         $(TARGET).map $(TARGET).sym $(TARGET).lss \
 297         $(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d)
 298
 299 # Name of this Makefile (used for "make depend").
 300 MAKEFILE = Makefile
 301
 302 depend:
 303         if grep '^# DO NOT DELETE' $(MAKEFILE) >/dev/null; \
 304         then \
 305                 sed -e '/^# DO NOT DELETE/,$$d' $(MAKEFILE) > \
 306                         $(MAKEFILE).$$$$ && \
 307                 $(MV) $(MAKEFILE).$$$$ $(MAKEFILE); \
 308         fi
 309         echo '# DO NOT DELETE THIS LINE -- make depend depends on it.' \
 310                 >> $(MAKEFILE); \
 311         $(CC) -M -mmcu=$(MCU) $(CDEFS) $(CINCS) $(SRC) $(ASRC) >> $(MAKEFILE)
 312
 313 .PHONY: all build elf hex eep lss sym program coff extcoff clean depend
 314