git.defcon.no Git - avrfbosd/blob - syncgen/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 = syncgen
  15
  16 MCU = attiny85
  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 F_CPU = 20000000
  37
  38 # Fuse-bits. Recommended tool: http://www.engbedded.com/fusecalc/
  39 FUSE_LOW  = 0xE0
  40 FUSE_HIGH = 0xDF
  41 FUSE_EXT  = 0xFF
  42 # Have had problems with efuse suggested by fusecalc, must check :P
  43
  44 # Source files to compile ---------------------------------------------------
  45
  46 # List C source files here. (C dependencies are automatically generated.)
  47 SRC = main.c
  48
  49 # List Assembler source files here.
  50 #     Make them always end in a capital .S.
  51 ASRC =
  52
  53 # Optimization level, can be [0, 1, 2, 3, s].
  54 #     0 = turn off optimization. s = optimize for size.
  55 #     (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
  56 OPT = 1
  57
  58 # Output formats and debug format -------------------------------------------
  59
  60 # Output format. (can be srec, ihex, binary)
  61 FORMAT = ihex
  62
  63 # Debugging format.
  64 # Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
  65 # AVR (extended) COFF requires stabs, plus an avr-objcopy run.
  66 DEBUG = dwarf-2
  67
  68 # Command names (and paths/parameters to them...) ---------------------------
  69
  70 CC = avr-gcc
  71 OBJCOPY = avr-objcopy
  72 OBJDUMP = avr-objdump
  73 SIZE = avr-size
  74 NM = avr-nm
  75 AVRDUDE = avrdude
  76 REMOVE = rm -f
  77 MV = mv -f
  78
  79 # Compiler flag to set the C Standard level.
  80 # c89   - "ANSI" C
  81 # gnu89 - c89 plus GCC extensions
  82 # c99   - ISO C99 standard (not yet fully implemented)
  83 # gnu99 - c99 plus GCC extensions
  84 CSTANDARD = -std=gnu99
  85
  86 # Place -D or -U options here
  87 CDEFS = -DF_CPU=$(F_CPU)UL
  88
  89 # Place -I options here
  90 CINCS =
  91
  92 CFLAGS = -g$(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CSTANDARD)
  93 CFLAGS += -funsigned-char
  94 CFLAGS += -funsigned-bitfields
  95 CFLAGS += -fpack-struct
  96 CFLAGS += -fshort-enums
  97 CFLAGS += -Wall
  98 CFLAGS += -Wstrict-prototypes
  99 #CFLAGS += -mshort-calls
 100 #CFLAGS += -fno-unit-at-a-time
 101 #CFLAGS += -Wundef
 102 #CFLAGS += -Wunreachable-code
 103 #CFLAGS += -Wsign-compare
 104
 105 #ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
 106
 107
 108 #Additional libraries.
 109
 110 MATH_LIB = -lm
 111
 112 # Minimalistic printf version
 113 PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
 114
 115 # Floating point printf version (requires MATH_LIB = -lm)
 116 PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
 117
 118 # If this is left blank, then it will use the Standard printf version.
 119 PRINTF_LIB =
 120 #PRINTF_LIB = $(PRINTF_LIB_MIN)
 121 #PRINTF_LIB = $(PRINTF_LIB_FLOAT)
 122
 123
 124 # Minimalistic scanf version
 125 SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
 126
 127 # Floating point + %[ scanf version (requires MATH_LIB = -lm)
 128 SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
 129
 130 # If this is left blank, then it will use the Standard scanf version.
 131 SCANF_LIB =
 132 #SCANF_LIB = $(SCANF_LIB_MIN)
 133 #SCANF_LIB = $(SCANF_LIB_FLOAT)
 134
 135
 136 # External memory options
 137
 138 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
 139 # used for variables (.data/.bss) and heap (malloc()).
 140 #EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
 141
 142 # 64 KB of external RAM, starting after internal RAM (ATmega128!),
 143 # only used for heap (malloc()).
 144 #EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff
 145
 146 EXTMEMOPTS =
 147
 148
 149 #LDMAP = $(LDFLAGS) -Wl,-Map=$(TARGET).map,--cref
 150 LDFLAGS = $(EXTMEMOPTS) $(LDMAP) $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
 151
 152
 153 # Programming support using avrdude. Settings and variables.
 154
 155 AVRDUDE_PROGRAMMER = usbtiny
 156 AVRDUDE_PORT = usb
 157
 158 AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
 159 #AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
 160
 161
 162 # Uncomment the following if you want avrdude's erase cycle counter.
 163 # Note that this counter needs to be initialized first using -Yn,
 164 # see avrdude manual.
 165 #AVRDUDE_ERASE_COUNTER = -y
 166
 167 # Uncomment the following if you do /not/ wish a verification to be
 168 # performed after programming the device.
 169 #AVRDUDE_NO_VERIFY = -V
 170
 171 # Increase verbosity level.  Please use this when submitting bug
 172 # reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
 173 # to submit bug reports.
 174 #AVRDUDE_VERBOSE = -v -v
 175
 176 AVRDUDE_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
 177 AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE) $(AVRDUDE_ERASE_COUNTER)
 178
 179
 180 # Define all object files.
 181 OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
 182
 183 # Define all listing files.
 184 LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)
 185
 186 # Combine all necessary flags and optional flags.
 187 # Add target processor to flags.
 188 ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS)
 189 ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
 190
 191
 192 # Default target.
 193 all: build
 194
 195 build: elf hex eep size
 196
 197 elf: $(TARGET).elf
 198 hex: $(TARGET).hex
 199 eep: $(TARGET).eep
 200 lss: $(TARGET).lss
 201 sym: $(TARGET).sym
 202
 203 # Display size of file.
 204 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
 205 ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
 206
 207 size:
 208         @echo
 209         $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
 210         $(SIZE) --target=$(FORMAT) $(TARGET).hex
 211
 212 # Program the device.
 213 program: $(TARGET).hex $(TARGET).eep
 214         $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
 215
 216
 217 # make fuseread can be used to test programmer connectivity, and naturally to verify fuses..
 218 fuseread:
 219         $(AVRDUDE) $(AVRDUDE_BASIC) -q -U lfuse:r:-:h -U hfuse:r:-:h -U efuse:r:-:h
 220
 221 FUSES =
 222 ifdef FUSE_EXT
 223 FUSES += -U efuse:w:$(FUSE_EXT):m
 224 endif
 225 FUSES += -U hfuse:w:$(FUSE_HIGH):m
 226 FUSES += -U lfuse:w:$(FUSE_LOW):m
 227
 228 fusebits: $(TARGET).hex
 229         $(AVRDUDE) $(AVRDUDE_BASIC) $(FUSES)
 230 # Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
 231 COFFCONVERT=$(OBJCOPY) --debugging \
 232 --change-section-address .data-0x800000 \
 233 --change-section-address .bss-0x800000 \
 234 --change-section-address .noinit-0x800000 \
 235 --change-section-address .eeprom-0x810000
 236
 237
 238 coff: $(TARGET).elf
 239         $(COFFCONVERT) -O coff-avr $(TARGET).elf $(TARGET).cof
 240
 241
 242 extcoff: $(TARGET).elf
 243         $(COFFCONVERT) -O coff-ext-avr $(TARGET).elf $(TARGET).cof
 244
 245
 246 .SUFFIXES: .elf .hex .eep .lss .sym
 247
 248 .elf.hex:
 249         $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
 250
 251 .elf.eep:
 252         -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
 253         --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
 254
 255 # Create extended listing file from ELF output file.
 256 .elf.lss:
 257         $(OBJDUMP) -h -S $< > $@
 258
 259 # Create a symbol table from ELF output file.
 260 .elf.sym:
 261         $(NM) -n $< > $@
 262
 263
 264
 265 # Link: create ELF output file from object files.
 266 $(TARGET).elf: $(OBJ)
 267         $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
 268
 269
 270 # Compile: create object files from C source files.
 271 .c.o:
 272         $(CC) -c $(ALL_CFLAGS) $< -o $@
 273
 274
 275 # Compile: create assembler files from C source files.
 276 .c.s:
 277         $(CC) -S $(ALL_CFLAGS) $< -o $@
 278
 279
 280 # Assemble: create object files from assembler source files.
 281 .S.o:
 282         $(CC) -c $(ALL_ASFLAGS) $< -o $@
 283
 284
 285
 286 # Target: clean project.
 287 clean:
 288         $(REMOVE) $(TARGET).hex $(TARGET).eep $(TARGET).cof $(TARGET).elf \
 289         $(TARGET).map $(TARGET).sym $(TARGET).lss \
 290         $(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d)
 291
 292 # Name of this Makefile (used for "make depend").
 293 MAKEFILE = Makefile
 294
 295 depend:
 296         if grep '^# DO NOT DELETE' $(MAKEFILE) >/dev/null; \
 297         then \
 298                 sed -e '/^# DO NOT DELETE/,$$d' $(MAKEFILE) > \
 299                         $(MAKEFILE).$$$$ && \
 300                 $(MV) $(MAKEFILE).$$$$ $(MAKEFILE); \
 301         fi
 302         echo '# DO NOT DELETE THIS LINE -- make depend depends on it.' \
 303                 >> $(MAKEFILE); \
 304         $(CC) -M -mmcu=$(MCU) $(CDEFS) $(CINCS) $(SRC) $(ASRC) >> $(MAKEFILE)
 305
 306 .PHONY: all build elf hex eep lss sym program coff extcoff clean depend
 307