annotate Makefile @ 39:1745d94761ea

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author Matt Johnston <matt@ucc.asn.au>
date Thu, 27 Jun 2013 19:25:32 +0800
parents cce426bb6d3e
children d07aa7644c66
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1 # Name: Makefile
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2 # Author: <insert your name here>
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3 # Copyright: <insert your copyright message here>
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4 # License: <insert your license reference here>
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5
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6 # This is a prototype Makefile. Modify it according to your needs.
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7 # You should at least check the settings for
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8 # DEVICE ....... The AVR device you compile for
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9 # CLOCK ........ Target AVR CLOCK rate in Hertz
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10 # OBJECTS ...... The object files created from your source files. This list is
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11 # usually the same as the list of source files with suffix ".o".
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12 # PROGRAMMER ... Options to avrdude which define the hardware you use for
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13 # uploading to the AVR and the interface where this hardware
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14 # is connected. We recommend that you leave it undefined and
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15 # add settings like this to your ~/.avrduderc file:
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16 # default_programmer = "stk500v2"
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17 # default_serial = "avrdoper"
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18 # FUSES ........ Parameters for avrdude to flash the fuses appropriately.
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19
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20 DEVICE = atmega328p
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21 PROGDEVICE = atmega328p
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22 CLOCK = 11059200L
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23 PROGRAMMER = #-c stk500v2 -P avrdoper
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24 PROGRAMMER = -c arduino -b 115200 -P /dev/ttyAMA0 -p $(PROGDEVICE) -B 2
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25 SOURCE_1WIRE = onewire.c simple_ds18b20.c crc8.c
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26 SOURCE_CRYPTO = hmac-sha1.c sha1-asm.S aes.c
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27 SOURCE_SD = byteordering.c fat.c partition.c sd_raw.c
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28 SOURCE = main.c
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29 SOURCE += $(SOURCE_CRYPTO) $(SOURCE_SD)
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30 LIBS =
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31 BOOTLOADER_HEX = ATmegaBOOT_168_pihelp.hex
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33 OBJECTS := $(patsubst %.c,%.o,$(patsubst %.S,%.o,$(SOURCE)))
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34
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35 # default but 2mhz
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36 FUSES = -U hfuse:w:0xd9:m -U lfuse:w:0x77:m -U efuse:w:0xfd:m
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38 #LOCKBIT
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39 # prevent bootloader write protect:
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40 # -U lock:w:0x2f:m
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41 # 0 unused bit7
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42 # 0 unused
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43 # 1 blb12 no writing to bootloader
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44 # 0 blb11
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45 # 1 blb02 bootloader can write to app
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46 # 1 blb01
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47 # 1 lb2 external serial prog unrestricted
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48 # 1 lb1 bit0
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50 # stop everything:
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51 # -U lock:w:0x20:m
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52 # 0 unused bit7
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53 # 0 unused
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54 # 1 blb12 no writing to bootloader
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55 # 0 blb11
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56 # 0 blb02
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57 # 0 blb01
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58 # 0 lb2
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59 # 0 lb1 bit0
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60
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61 # ATMega8 fuse bits used above (fuse bits for other devices are different!):
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62 # Example for 8 MHz internal oscillator
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63 # Fuse high byte:
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64 # 0xd9 = 1 1 0 1 1 0 0 1 <-- BOOTRST (boot reset vector at 0x0000)
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65 # ^ ^ ^ ^ ^ ^ ^------ BOOTSZ0
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66 # | | | | | +-------- BOOTSZ1
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67 # | | | | +---------- EESAVE (set to 0 to preserve EEPROM over chip erase)
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68 # | | | +-------------- WDTON
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69 # | | +---------------- SPIEN (if set to 1, serial programming is disabled)
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70 # | +------------------ DWEN
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71 # +-------------------- RSTDISBL (if set to 0, RESET pin is disabled)
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72 # Fuse low byte:
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73 # 0x77 0 1 1 1 0 1 1 1 (low rising, full swing, crystal)
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74 # 0x62 = 0 1 1 0 0 0 1 0
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75 # ^ ^ \ / \--+--/
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76 # | | | +------- CKSEL 3..0 (8M internal RC)
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77 # | | +--------------- SUT 1..0 (slowly rising power)
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78 # | +------------------ CKOUT
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79 # +-------------------- CLKDIV8 (initial)
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81 # Extended fuse:
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82 # 0xfd = 2.7V BOD
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83 #
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84 #
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85 # For computing fuse byte values for other devices and options see
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86 # the fuse bit calculator at http://www.engbedded.com/fusecalc/
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87
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88
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89 # Tune the lines below only if you know what you are doing:
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90
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91 SHELL := /bin/bash
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92 export PATH := $(PATH):/usr/local/CrossPack-AVR/bin/
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93
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94 AVRDUDE = avrdude $(PROGRAMMER)
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95 COMPILE = avr-gcc -Wall -Os -DF_CPU=$(CLOCK) -mmcu=$(DEVICE) -g -std=c99 -mcall-prologues -fdata-sections -ffunction-sections -Wl,--gc-sections -Wl,--relax -fwhole-program -flto
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96
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97 # symbolic targets:
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98 all: main.hex
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99
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100 .c.o:
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101 $(COMPILE) -c $< -o $@
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102
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103 .S.o:
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104 $(COMPILE) -x assembler-with-cpp -c $< -o $@
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105 # "-x assembler-with-cpp" should not be necessary since this is the default
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106 # file type for the .S (with capital S) extension. However, upper case
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107 # characters are not always preserved on Windows. To ensure WinAVR
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108 # compatibility define the file type manually.
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109
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110 .c.s:
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111 $(COMPILE) -S $< -o $@
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112
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113 flash: all
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114 $(AVRDUDE) -U flash:w:main.hex:i
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115
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116 combined.hex: main.hex $(BOOTLOADER_HEX)
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117 srec_cat main.hex -I $(BOOTLOADER_HEX) -I -o $@ -I
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118 avr-objdump -h $@
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119
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120 combo: combined.hex
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121 $(AVRDUDE) -U flash:w:combined.hex:i
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122
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123 checkprog:
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124 $(AVRDUDE) -v
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125
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126 fuse:
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127 $(AVRDUDE) $(FUSES)
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128
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129 # Xcode uses the Makefile targets "", "clean" and "install"
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130 install: flash
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131
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132 # if you use a bootloader, change the command below appropriately:
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133 load: all
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134 bootloadHID main.hex
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135
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136 clean:
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137 rm -f main.hex main.elf $(OBJECTS)
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138
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139 # file targets:
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140 main.elf: $(SOURCE)
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141 $(COMPILE) -o main.elf $(SOURCE) $(LIBS)
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142
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143 main.hex: main.elf
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144 rm -f main.hex
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145 avr-objcopy -j .text -j .data -O ihex main.elf main.hex
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146 avr-size --format=avr --mcu=$(DEVICE) main.elf
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147 # If you have an EEPROM section, you must also create a hex file for the
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148 # EEPROM and add it to the "flash" target.
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149
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150 # Targets for code debugging and analysis:
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151 disasm: main.elf
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152 avr-objdump -d main.elf
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153
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154 cpp:
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155 $(COMPILE) -E main.c