1 | # Hey Emacs, this is a -*- makefile -*-
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2 | #----------------------------------------------------------------------------
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3 | # WinAVR Makefile Template written by Eric B. Weddington, J�rg Wunsch, et al.
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4 | #
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5 | # Released to the Public Domain
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6 | #
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7 | # Additional material for this makefile was written by:
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8 | # Peter Fleury
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9 | # Tim Henigan
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10 | # Colin O'Flynn
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11 | # Reiner Patommel
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12 | # Markus Pfaff
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13 | # Sander Pool
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14 | # Frederik Rouleau
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15 | #
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16 | #----------------------------------------------------------------------------
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17 | # On command line:
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18 | #
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19 | # make all = Make software.
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20 | #
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21 | # make clean = Clean out built project files.
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22 | #
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23 | # make coff = Convert ELF to AVR COFF.
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24 | #
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25 | # make extcoff = Convert ELF to AVR Extended COFF.
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26 | #
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27 | # make program = Download the hex file to the device, using avrdude.
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28 | # Please customize the avrdude settings below first!
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29 | #
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30 | # make debug = Start either simulavr or avarice as specified for debugging,
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31 | # with avr-gdb or avr-insight as the front end for debugging.
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32 | #
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33 | # make filename.s = Just compile filename.c into the assembler code only.
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34 | #
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35 | # make filename.i = Create a preprocessed source file for use in submitting
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36 | # bug reports to the GCC project.
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37 | #
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38 | # To rebuild project do "make clean" then "make all".
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39 | #----------------------------------------------------------------------------
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40 |
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41 |
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42 | # MCU name
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43 | MCU = atmega8
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44 |
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45 |
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46 | # Processor frequency.
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47 | # This will define a symbol, F_CPU, in all source code files equal to the
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48 | # processor frequency. You can then use this symbol in your source code to
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49 | # calculate timings. Do NOT tack on a 'UL' at the end, this will be done
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50 | # automatically to create a 32-bit value in your source code.
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51 | F_CPU = 8000000
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52 |
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53 |
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54 | # Output format. (can be srec, ihex, binary)
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55 | FORMAT = ihex
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56 |
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57 |
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58 | # Target file name (without extension).
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59 | TARGET = led_blink
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60 |
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61 |
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62 | # List C source files here. (C dependencies are automatically generated.)
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63 | SRC = $(TARGET).c
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64 |
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65 |
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66 | # List Assembler source files here.
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67 | # Make them always end in a capital .S. Files ending in a lowercase .s
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68 | # will not be considered source files but generated files (assembler
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69 | # output from the compiler), and will be deleted upon "make clean"!
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70 | # Even though the DOS/Win* filesystem matches both .s and .S the same,
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71 | # it will preserve the spelling of the filenames, and gcc itself does
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72 | # care about how the name is spelled on its command-line.
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73 | ASRC =
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74 |
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75 |
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76 | # Optimization level, can be [0, 1, 2, 3, s].
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77 | # 0 = turn off optimization. s = optimize for size.
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78 | # (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
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79 | OPT = s
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80 |
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81 |
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82 | # Debugging format.
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83 | # Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.
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84 | # AVR Studio 4.10 requires dwarf-2.
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85 | # AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.
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86 | DEBUG = stabs
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87 |
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88 |
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89 | # List any extra directories to look for include files here.
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90 | # Each directory must be seperated by a space.
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91 | # Use forward slashes for directory separators.
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92 | # For a directory that has spaces, enclose it in quotes.
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93 | # EXTRAINCDIRS = f:/Programme/AVRlib
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94 |
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95 |
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96 | # Compiler flag to set the C Standard level.
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97 | # c89 = "ANSI" C
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98 | # gnu89 = c89 plus GCC extensions
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99 | # c99 = ISO C99 standard (not yet fully implemented)
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100 | # gnu99 = c99 plus GCC extensions
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101 | CSTANDARD = -std=gnu99
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102 |
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103 |
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104 | # Place -D or -U options here
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105 | CDEFS = -DF_CPU=$(F_CPU)UL
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106 |
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107 |
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108 | # Place -I options here
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109 | CINCS =
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110 |
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111 |
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112 |
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113 | #---------------- Compiler Options ----------------
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114 | # -g*: generate debugging information
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115 | # -O*: optimization level
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116 | # -f...: tuning, see GCC manual and avr-libc documentation
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117 | # -Wall...: warning level
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118 | # -Wa,...: tell GCC to pass this to the assembler.
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119 | # -adhlns...: create assembler listing
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120 | CFLAGS = -g$(DEBUG)
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121 | CFLAGS += $(CDEFS) $(CINCS)
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122 | CFLAGS += -O$(OPT)
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123 | CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
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124 | CFLAGS += -Wall -Wstrict-prototypes
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125 | CFLAGS += -Wa,-adhlns=$(<:.c=.lst)
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126 | CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
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127 | CFLAGS += $(CSTANDARD)
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128 |
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129 |
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130 | #---------------- Assembler Options ----------------
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131 | # -Wa,...: tell GCC to pass this to the assembler.
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132 | # -ahlms: create listing
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133 | # -gstabs: have the assembler create line number information; note that
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134 | # for use in COFF files, additional information about filenames
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135 | # and function names needs to be present in the assembler source
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136 | # files -- see avr-libc docs [FIXME: not yet described there]
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137 | # -listing-cont-lines: Sets the maximum number of continuation lines of hex
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138 | # dump that will be displayed for a given single line of source input.
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139 | ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs,--listing-cont-lines=100
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140 |
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141 |
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142 | #---------------- Library Options ----------------
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143 | # Minimalistic printf version
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144 | PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
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145 |
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146 | # Floating point printf version (requires MATH_LIB = -lm below)
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147 | PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
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148 |
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149 | # If this is left blank, then it will use the Standard printf version.
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150 | PRINTF_LIB =
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151 | #PRINTF_LIB = $(PRINTF_LIB_MIN)
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152 | #PRINTF_LIB = $(PRINTF_LIB_FLOAT)
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153 |
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154 |
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155 | # Minimalistic scanf version
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156 | SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
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157 |
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158 | # Floating point + %[ scanf version (requires MATH_LIB = -lm below)
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159 | SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
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160 |
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161 | # If this is left blank, then it will use the Standard scanf version.
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162 | SCANF_LIB =
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163 | #SCANF_LIB = $(SCANF_LIB_MIN)
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164 | #SCANF_LIB = $(SCANF_LIB_FLOAT)
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165 |
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166 |
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167 | MATH_LIB = -lm
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168 |
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169 |
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170 |
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171 | #---------------- External Memory Options ----------------
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172 |
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173 | # 64 KB of external RAM, starting after internal RAM (ATmega128!),
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174 | # used for variables (.data/.bss) and heap (malloc()).
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175 | #EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
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176 |
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177 | # 64 KB of external RAM, starting after internal RAM (ATmega128!),
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178 | # only used for heap (malloc()).
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179 | #EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff
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180 |
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181 | EXTMEMOPTS =
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182 |
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183 |
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184 |
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185 | #---------------- Linker Options ----------------
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186 | # -Wl,...: tell GCC to pass this to linker.
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187 | # -Map: create map file
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188 | # --cref: add cross reference to map file
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189 | LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
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190 | LDFLAGS += $(EXTMEMOPTS)
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191 | LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
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192 |
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193 |
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194 |
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195 | #---------------- Programming Options (avrdude) ----------------
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196 |
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197 | # Programming hardware: alf avr910 avrisp bascom bsd
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198 | # dt006 pavr picoweb pony-stk200 sp12 stk200 stk500
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199 | #
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200 | # Type: avrdude -c ?
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201 | # to get a full listing.
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202 | #
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203 | AVRDUDE_PROGRAMMER = stk200
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204 |
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205 | # com1 = serial port. Use lpt1 to connect to parallel port.
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206 | AVRDUDE_PORT = lpt1 # programmer connected to serial device
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207 |
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208 | AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
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209 | #AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
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210 |
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211 |
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212 | # Uncomment the following if you want avrdude's erase cycle counter.
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213 | # Note that this counter needs to be initialized first using -Yn,
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214 | # see avrdude manual.
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215 | #AVRDUDE_ERASE_COUNTER = -y
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216 |
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217 | # Uncomment the following if you do /not/ wish a verification to be
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218 | # performed after programming the device.
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219 | #AVRDUDE_NO_VERIFY = -V
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220 |
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221 | # Increase verbosity level. Please use this when submitting bug
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222 | # reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
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223 | # to submit bug reports.
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224 | #AVRDUDE_VERBOSE = -v -v
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225 |
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226 | AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
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227 | AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
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228 | AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
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229 | AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
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230 |
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231 |
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232 |
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233 | #---------------- Debugging Options ----------------
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234 |
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235 | # For simulavr only - target MCU frequency.
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236 | DEBUG_MFREQ = $(F_CPU)
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237 |
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238 | # Set the DEBUG_UI to either gdb or insight.
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239 | # DEBUG_UI = gdb
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240 | DEBUG_UI = insight
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241 |
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242 | # Set the debugging back-end to either avarice, simulavr.
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243 | DEBUG_BACKEND = avarice
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244 | #DEBUG_BACKEND = simulavr
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245 |
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246 | # GDB Init Filename.
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247 | GDBINIT_FILE = __avr_gdbinit
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248 |
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249 | # When using avarice settings for the JTAG
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250 | JTAG_DEV = /dev/com1
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251 |
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252 | # Debugging port used to communicate between GDB / avarice / simulavr.
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253 | DEBUG_PORT = 4242
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254 |
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255 | # Debugging host used to communicate between GDB / avarice / simulavr, normally
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256 | # just set to localhost unless doing some sort of crazy debugging when
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257 | # avarice is running on a different computer.
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258 | DEBUG_HOST = localhost
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259 |
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260 |
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261 |
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262 | #============================================================================
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263 |
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264 |
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265 | # Define programs and commands.
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266 | SHELL = sh
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267 | CC = avr-gcc
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268 | OBJCOPY = avr-objcopy
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269 | OBJDUMP = avr-objdump
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270 | SIZE = avr-size
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271 | NM = avr-nm
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272 | AVRDUDE = avrdude
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273 | REMOVE = rm -f
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274 | COPY = cp
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275 | WINSHELL = cmd
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276 |
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277 |
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278 | # Define Messages
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279 | # English
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280 | MSG_ERRORS_NONE = Errors: none
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281 | MSG_BEGIN = -------- begin --------
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282 | MSG_END = -------- end --------
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283 | MSG_SIZE_BEFORE = Size before:
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284 | MSG_SIZE_AFTER = Size after:
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285 | MSG_COFF = Converting to AVR COFF:
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286 | MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
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287 | MSG_FLASH = Creating load file for Flash:
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288 | MSG_EEPROM = Creating load file for EEPROM:
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289 | MSG_EXTENDED_LISTING = Creating Extended Listing:
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290 | MSG_SYMBOL_TABLE = Creating Symbol Table:
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291 | MSG_LINKING = Linking:
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292 | MSG_COMPILING = Compiling:
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293 | MSG_ASSEMBLING = Assembling:
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294 | MSG_CLEANING = Cleaning project:
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295 |
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296 |
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297 |
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298 |
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299 | # Define all object files.
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300 | OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
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301 |
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302 | # Define all listing files.
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303 | LST = $(SRC:.c=.lst) $(ASRC:.S=.lst)
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304 |
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305 |
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306 | # Compiler flags to generate dependency files.
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307 | GENDEPFLAGS = -MD -MP -MF .dep/$(@F).d
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308 |
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309 |
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310 | # Combine all necessary flags and optional flags.
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311 | # Add target processor to flags.
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312 | ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
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313 | ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
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314 |
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315 |
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316 |
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317 |
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318 |
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319 | # Default target.
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320 | all: begin gccversion sizebefore build sizeafter end
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321 |
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322 | build: elf hex eep lss sym extcoff
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323 |
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324 | elf: $(TARGET).elf
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325 | hex: $(TARGET).hex
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326 | eep: $(TARGET).eep
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327 | lss: $(TARGET).lss
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328 | sym: $(TARGET).sym
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329 |
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330 |
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331 |
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332 | # Eye candy.
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333 | # AVR Studio 3.x does not check make's exit code but relies on
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334 | # the following magic strings to be generated by the compile job.
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335 | begin:
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336 | @echo
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337 | @echo $(MSG_BEGIN)
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338 |
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339 | end:
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340 | @echo $(MSG_END)
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341 | @echo
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342 |
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343 |
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344 | # Display size of file.
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345 | HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
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346 | ELFSIZE = $(SIZE) $(TARGET).elf
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347 |
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348 | sizebefore:
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349 | @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
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350 | 2>/dev/null; echo; fi
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351 |
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352 | sizeafter:
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353 | @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \
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354 | 2>/dev/null; echo; fi
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355 |
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356 |
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357 |
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358 | # Display compiler version information.
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359 | gccversion :
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360 | @$(CC) --version
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361 |
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362 |
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363 |
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364 | # Program the device.
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365 | program: $(TARGET).hex $(TARGET).eep
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366 | $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
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367 |
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368 |
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369 | # Generate avr-gdb config/init file which does the following:
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370 | # define the reset signal, load the target file, connect to target, and set
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371 | # a breakpoint at main().
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372 | gdb-config:
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373 | @$(REMOVE) $(GDBINIT_FILE)
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374 | @echo define reset >> $(GDBINIT_FILE)
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375 | @echo SIGNAL SIGHUP >> $(GDBINIT_FILE)
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376 | @echo end >> $(GDBINIT_FILE)
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377 | @echo file $(TARGET).elf >> $(GDBINIT_FILE)
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378 | @echo target remote $(DEBUG_HOST):$(DEBUG_PORT) >> $(GDBINIT_FILE)
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379 | ifeq ($(DEBUG_BACKEND),simulavr)
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380 | @echo load >> $(GDBINIT_FILE)
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381 | endif
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382 | @echo break main >> $(GDBINIT_FILE)
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383 |
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384 | debug: gdb-config $(TARGET).elf
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385 | ifeq ($(DEBUG_BACKEND), avarice)
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386 | @echo Starting AVaRICE - Press enter when "waiting to connect" message displays.
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387 | @$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \
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388 | $(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT)
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389 | @$(WINSHELL) /c pause
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390 | else
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391 | @$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \
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392 | $(DEBUG_MFREQ) --port $(DEBUG_PORT)
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393 | endif
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394 | @$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE)
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395 |
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396 |
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397 |
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398 | # Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
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399 | COFFCONVERT=$(OBJCOPY) --debugging \
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400 | --change-section-address .data-0x800000 \
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401 | --change-section-address .bss-0x800000 \
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402 | --change-section-address .noinit-0x800000 \
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403 | --change-section-address .eeprom-0x810000
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404 |
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405 |
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406 | coff: $(TARGET).elf
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407 | @echo
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408 | @echo $(MSG_COFF) $(TARGET).cof
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409 | $(COFFCONVERT) -O coff-avr $< $(TARGET).cof
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410 |
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411 |
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412 | extcoff: $(TARGET).elf
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413 | @echo
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414 | @echo $(MSG_EXTENDED_COFF) $(TARGET).cof
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415 | $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
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416 |
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417 |
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418 |
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419 | # Create final output files (.hex, .eep) from ELF output file.
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420 | %.hex: %.elf
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421 | @echo
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422 | @echo $(MSG_FLASH) $@
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423 | $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
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424 |
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425 | %.eep: %.elf
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426 | @echo
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427 | @echo $(MSG_EEPROM) $@
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428 | -$(OBJCOPY) -j .eeprom --set-section-flags .eeprom=alloc,load \
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429 | --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
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430 |
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431 | # Create extended listing file from ELF output file.
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432 | %.lss: %.elf
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433 | @echo
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434 | @echo $(MSG_EXTENDED_LISTING) $@
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435 | $(OBJDUMP) -h -S $< > $@
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436 |
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437 | # Create a symbol table from ELF output file.
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438 | %.sym: %.elf
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439 | @echo
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440 | @echo $(MSG_SYMBOL_TABLE) $@
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441 | $(NM) -n $< > $@
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442 |
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443 |
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444 |
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445 | # Link: create ELF output file from object files.
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446 | .SECONDARY : $(TARGET).elf
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447 | .PRECIOUS : $(OBJ)
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448 | %.elf: $(OBJ)
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449 | @echo
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450 | @echo $(MSG_LINKING) $@
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451 | $(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)
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452 |
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453 |
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454 | # Compile: create object files from C source files.
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455 | %.o : %.c
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456 | @echo
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457 | @echo $(MSG_COMPILING) $<
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458 | $(CC) -c $(ALL_CFLAGS) $< -o $@
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459 |
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460 |
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461 | # Compile: create assembler files from C source files.
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462 | %.s : %.c
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463 | $(CC) -S $(ALL_CFLAGS) $< -o $@
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464 |
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465 |
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466 | # Assemble: create object files from assembler source files.
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467 | %.o : %.S
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468 | @echo
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469 | @echo $(MSG_ASSEMBLING) $<
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470 | $(CC) -c $(ALL_ASFLAGS) $< -o $@
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471 |
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472 | # Create preprocessed source for use in sending a bug report.
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473 | %.i : %.c
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474 | $(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@
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475 |
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476 |
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477 | # Target: clean project.
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478 | clean: begin clean_list end
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479 |
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480 | clean_list :
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481 | @echo
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482 | @echo $(MSG_CLEANING)
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483 | $(REMOVE) $(TARGET).hex
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484 | $(REMOVE) $(TARGET).eep
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485 | $(REMOVE) $(TARGET).cof
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486 | $(REMOVE) $(TARGET).elf
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487 | $(REMOVE) $(TARGET).map
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488 | $(REMOVE) $(TARGET).sym
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489 | $(REMOVE) $(TARGET).lss
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490 | $(REMOVE) $(OBJ)
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491 | $(REMOVE) $(LST)
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492 | $(REMOVE) $(SRC:.c=.s)
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493 | $(REMOVE) $(SRC:.c=.d)
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494 | $(REMOVE) .dep/*
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495 |
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496 |
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497 |
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498 | # Include the dependency files.
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499 | -include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
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500 |
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501 |
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502 | # Listing of phony targets.
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503 | .PHONY : all begin finish end sizebefore sizeafter gccversion \
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504 | build elf hex eep lss sym coff extcoff \
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505 | clean clean_list program debug gdb-config
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