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annotate Lib/CMake/arm.cmake @ 333:772f9bea482b

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Adding 72 MHz clock support for mk20dx256vlh7
author Jacob Alexander <haata@kiibohd.com>
date Mon, 20 Apr 2015 00:55:58 -0700
parents f9c406854bc2
children b5746c43904e
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1 ###| CMAKE Kiibohd Controller |###
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2 #
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3 # Jacob Alexander 2011-2014
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4 # Due to this file's usefulness:
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5 #
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6 # Released into the Public Domain
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7 #
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8 # Freescale ARM CMake Build Configuration
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9 #
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10 ###
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11
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12
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13
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14 #| Set the Compilers (must be set first)
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15 include( CMakeForceCompiler )
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16 message( STATUS "Compiler Selected:" )
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17 if ( "${COMPILER}" MATCHES "gcc" )
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18 cmake_force_c_compiler ( arm-none-eabi-gcc ARMCCompiler )
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19 cmake_force_cxx_compiler( arm-none-eabi-g++ ARMCxxCompiler )
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20 set( _CMAKE_TOOLCHAIN_PREFIX arm-none-eabi- )
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21 message( "gcc" )
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22 elseif ( "${COMPILER}" MATCHES "clang" )
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23 cmake_force_c_compiler ( clang ARMCCompiler )
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24 cmake_force_cxx_compiler( clang++ ARMCxxCompiler )
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25 set( _CMAKE_TOOLCHAIN_PREFIX llvm- )
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26 message( "clang" )
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27 else ()
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28 message( AUTHOR_WARNING "COMPILER: ${COMPILER} - Unknown compiler selection" )
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29 endif ()
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30
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31
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32
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33 ###
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34 # ARM Defines and Linker Options
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35 #
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36
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37 #| Chip Name (Linker)
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38 #|
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39 #| "mk20dx128vlf5" # McHCK / Kiibohd-dfu
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40 #| "mk20dx256vlh7" # Kiibohd-dfu
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41 #| "mk20dx128" # Teensy 3.0
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42 #| "mk20dx256" # Teensy 3.1
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43
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44 message( STATUS "Chip Selected:" )
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45 message( "${CHIP}" )
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46 set( MCU "${CHIP}" ) # For loading script compatibility
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47
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48
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49 #| Chip Size and CPU Frequency Database
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50 #| Processor frequency.
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51 #| Normally the first thing your program should do is set the clock prescaler,
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52 #| so your program will run at the correct speed. You should also set this
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53 #| variable to same clock speed. The _delay_ms() macro uses this, and many
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54 #| examples use this variable to calculate timings. Do not add a "UL" here.
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55 #| MCHCK Based / Kiibohd-dfu
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56 if ( "${CHIP}" MATCHES "mk20dx128vlf5" )
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57 set( SIZE_RAM 16384 )
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58 set( SIZE_FLASH 126976 )
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59 set( F_CPU "48000000" )
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60
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61 #| Kiibohd-dfu
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62 elseif ( "${CHIP}" MATCHES "mk20dx256vlh7" )
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63 set( SIZE_RAM 65536 )
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64 set( SIZE_FLASH 253952 )
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65 set( F_CPU "72000000" )
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66
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67 #| Teensy 3.0
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68 elseif ( "${CHIP}" MATCHES "mk20dx128" )
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69 set( SIZE_RAM 16384 )
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70 set( SIZE_FLASH 131072 )
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71 set( F_CPU "48000000" )
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72
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73 #| Teensy 3.1
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74 elseif ( "${CHIP}" MATCHES "mk20dx256" )
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75 set( SIZE_RAM 65536 )
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76 set( SIZE_FLASH 262144 )
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77 set( F_CPU "48000000" ) # XXX Also supports 72 MHz, but may requires code changes
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78
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79 #| Unknown ARM
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80 else ()
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81 message( AUTHOR_WARNING "CHIP: ${CHIP} - Unknown ARM microcontroller" )
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82 endif ()
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83
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84
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85 #| Chip Base Type
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86 #| Automatically chosed based on the chip name.
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87 if ( "${CHIP}" MATCHES "^mk20dx.*$" )
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88 set( CHIP_FAMILY "mk20dx" )
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89 message( STATUS "Chip Family:" )
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90 message( "${CHIP_FAMILY}" )
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91 else ()
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92 message( FATAL_ERROR "Unknown chip family: ${CHIP}" )
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93 endif ()
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94
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95
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96 #| CPU Type
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97 #| You _MUST_ set this to match the board you are using
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98 #| type "make clean" after changing this, so all files will be rebuilt
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99 #|
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100 #| "cortex-m4" # Teensy 3.0, 3.1, McHCK
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101 set( CPU "cortex-m4" )
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102
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103 message( STATUS "CPU Selected:" )
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104 message( "${CPU}" )
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105
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106
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107 #| Extra Compiler Sources
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108 #| Mostly for convenience functions like interrupt handlers
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109 set( COMPILER_SRCS
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110 Lib/${CHIP_FAMILY}.c
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111 Lib/delay.c
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112 )
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113
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114 message( STATUS "Compiler Source Files:" )
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115 message( "${COMPILER_SRCS}" )
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116
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117
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118 #| USB Defines, this is how the loader programs detect which type of chip base is used
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119 message( STATUS "Bootloader Type:" )
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120 if ( "${CHIP}" MATCHES "mk20dx128vlf5" OR "${CHIP}" MATCHES "mk20dx256vlh7" )
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121 set( VENDOR_ID "0x1C11" )
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122 set( PRODUCT_ID "0xB04D" )
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123 set( BOOT_VENDOR_ID "0x1C11" )
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124 set( BOOT_PRODUCT_ID "0xB007" )
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125 set( BOOT_DFU_ALTNAME "Kiibohd DFU" )
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126 set( DFU 1 )
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127 message( "dfu" )
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128 elseif ( "${CHIP}" MATCHES "mk20dx128" OR "${CHIP}" MATCHES "mk20dx256" )
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129 set( VENDOR_ID "0x1C11" )
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130 set( PRODUCT_ID "0xB04D" )
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131 set( BOOT_VENDOR_ID "0x16c0" ) # TODO Double check, this is likely incorrect
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132 set( BOOT_PRODUCT_ID "0x0487" )
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133 set( TEENSY 1 )
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134 message( "Teensy" )
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135 endif ()
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136
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137
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138 #| Compiler flag to set the C Standard level.
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139 #| c89 = "ANSI" C
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140 #| gnu89 = c89 plus GCC extensions
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141 #| c99 = ISO C99 standard (not yet fully implemented)
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142 #| gnu99 = c99 plus GCC extensions
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143 #| gnu11 = c11 plus GCC extensions
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144 set( CSTANDARD "-std=gnu11" )
147
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145
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146
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147 #| Warning Options
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148 #| -Wall...: warning level
192
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149 set( WARN "-Wall -ggdb3" )
147
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150
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151
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152 #| Tuning Options
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153 #| -f...: tuning, see GCC manual
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154 #| NOTE: -fshort-wchar is specified to allow USB strings be passed conveniently
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155 if( BOOTLOADER )
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156 set( TUNING "-D_bootloader_ -Wno-main -msoft-float -mthumb -fplan9-extensions -ffunction-sections -fdata-sections -fno-builtin -fstrict-volatile-bitfields -flto -fno-use-linker-plugin -nostdlib" )
192
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157 #set( TUNING "-mthumb -fdata-sections -ffunction-sections -fno-builtin -msoft-float -fstrict-volatile-bitfields -flto -fno-use-linker-plugin -fwhole-program -Wno-main -nostartfiles -fplan9-extensions -D_bootloader_" )
264
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158 elseif ( "${COMPILER}" MATCHES "clang" )
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159 set( TUNING "-target arm-none-eabi -mthumb -nostdlib -fdata-sections -ffunction-sections -fshort-wchar -fno-builtin" )
192
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160 else()
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161 set( TUNING "-mthumb -nostdlib -fdata-sections -ffunction-sections -fshort-wchar -fno-builtin -nostartfiles" )
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162 endif()
147
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163
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164
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165 #| Optimization level, can be [0, 1, 2, 3, s].
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166 #| 0 = turn off optimization. s = optimize for size.
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167 #| (Note: 3 is not always the best optimization level.)
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168 set( OPT "s" )
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169
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170
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171 #| Dependency Files
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172 #| Compiler flags to generate dependency files.
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173 set( GENDEPFLAGS "-MMD" )
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174
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175
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176 #| Compiler Flags
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177 add_definitions( "-mcpu=${CPU} -DF_CPU=${F_CPU} -D_${CHIP}_=1 -O${OPT} ${TUNING} ${WARN} ${CSTANDARD} ${GENDEPFLAGS}" )
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178
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179
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180 #| Linker Flags
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181 if( BOOTLOADER )
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182 # Bootloader linker flags
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183 set( LINKER_FLAGS "${TUNING} -Wl,--gc-sections -fwhole-program -T${CMAKE_CURRENT_SOURCE_DIR}/../Lib/${CHIP}.bootloader.ld -nostartfiles -Wl,-Map=link.map" )
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184 else()
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185 # Normal linker flags
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186 set( LINKER_FLAGS "${TUNING} -Wl,-Map=link.map,--cref -Wl,--gc-sections -Wl,--no-wchar-size-warning -T${CMAKE_CURRENT_SOURCE_DIR}/Lib/${CHIP}.ld" )
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187 endif()
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188
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189
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190 #| Hex Flags (XXX, CMake seems to have issues if you quote the arguments for the custom commands...)
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191 set( HEX_FLAGS -O ihex -R .eeprom )
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192
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193
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194 #| Binary Flags
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195 set( BIN_FLAGS -O binary )
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196
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197
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198 #| Lss Flags
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199 if ( "${COMPILER}" MATCHES "clang" )
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200 set( LSS_FLAGS -section-headers -triple=arm-none-eabi )
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201 else ()
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202 set( LSS_FLAGS -h -S -z )
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203 endif ()
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204