149 lines
3.6 KiB
CMake
149 lines
3.6 KiB
CMake
###| CMAKE Kiibohd Controller |###
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#
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# Jacob Alexander 2011-2014
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# Due to this file's usefulness:
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#
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# Released into the Public Domain
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#
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# avr-gcc CMake Build Configuration
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#
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###
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#| Set the Compilers (must be set first)
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include( CMakeForceCompiler )
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cmake_force_c_compiler ( avr-gcc AVRCCompiler )
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cmake_force_cxx_compiler( avr-g++ AVRCxxCompiler )
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set( _CMAKE_TOOLCHAIN_PREFIX avr- )
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###
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# Atmel Defines and Linker Options
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#
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#| MCU Name
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#|
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#| "at90usb162" # Teensy 1.0
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#| "atmega32u4" # Teensy 2.0
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#| "at90usb646" # Teensy++ 1.0
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#| "at90usb1286" # Teensy++ 2.0
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set( MCU "${CHIP}" )
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message( STATUS "MCU Selected:" )
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message( "${MCU}" )
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#| Chip Size Database
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#| Teensy 1.0
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if ( "${CHIP}" MATCHES "at90usb162" )
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set( SIZE_RAM 512 )
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set( SIZE_FLASH 15872 )
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#| Teensy 2.0
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elseif ( "${CHIP}" MATCHES "atmega32u4" )
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set( SIZE_RAM 2560 )
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set( SIZE_FLASH 32256 )
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#| Teensy++ 1.0
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elseif ( "${CHIP}" MATCHES "at90usb646" )
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set( SIZE_RAM 4096 )
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set( SIZE_FLASH 64512 )
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#| Teensy++ 2.0
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elseif ( "${CHIP}" MATCHES "at90usb1286" )
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set( SIZE_RAM 8192 )
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set( SIZE_FLASH 130048 )
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#| Unknown AVR
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else ()
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message( AUTHOR_WARNING "CHIP: ${CHIP} - Unknown AVR microcontroller" )
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endif ()
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#| Extra Compiler Sources
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#| Mostly for convenience functions like interrupt handlers
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set( COMPILER_SRCS
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# XXX Not needed for avr-gcc
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)
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#| CPU Type
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#| This is only informational for AVR microcontrollers
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#| The field can be determined by the microcontroller chip, but currently only one CPU type is used atm
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set( CPU "megaAVR" )
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message( STATUS "CPU Selected:" )
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message( "${CPU}" )
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#| USB Defines
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set( VENDOR_ID "0x16C0" )
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set( PRODUCT_ID "0x047D" )
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#| Compiler flag to set the C Standard level.
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#| c89 = "ANSI" C
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#| gnu89 = c89 plus GCC extensions
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#| c99 = ISO C99 standard (not yet fully implemented)
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#| gnu99 = c99 plus GCC extensions
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set( CSTANDARD "-std=gnu99" )
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#| Warning Options
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#| -Wall...: warning level
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set( WARN "-Wall" )
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#| Tuning Options
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#| -f...: tuning, see GCC manual and avr-libc documentation
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#| NOTE: -fshort-wchar is specified to allow USB strings be passed conveniently
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set( TUNING "-funsigned-char -funsigned-bitfields -ffunction-sections -fpack-struct -fshort-enums" )
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#| Optimization level, can be [0, 1, 2, 3, s].
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#| 0 = turn off optimization. s = optimize for size.
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#| (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
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set( OPT "s" )
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#| Output Format
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#| srec, ihex, binary
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set( FORMAT "ihex" )
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#| Processor frequency.
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#| Normally the first thing your program should do is set the clock prescaler,
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#| so your program will run at the correct speed. You should also set this
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#| variable to same clock speed. The _delay_ms() macro uses this, and many
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#| examples use this variable to calculate timings. Do not add a "UL" here.
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set( F_CPU "16000000" )
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#| Dependency Files
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#| Compiler flags to generate dependency files.
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set( GENDEPFLAGS "-MMD -MP" )
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#| Compiler Flags
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add_definitions( "-mmcu=${MCU} -DF_CPU=${F_CPU} -D_${MCU}_=1 -O${OPT} ${TUNING} ${WARN} ${CSTANDARD} ${GENDEPFLAGS}" )
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#| Linker Flags
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set( LINKER_FLAGS "-mmcu=${MCU} -Wl,-Map=${TARGET}.map,--cref -Wl,--relax -Wl,--gc-sections" )
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#| Hex Flags (XXX, CMake seems to have issues if you quote the arguments for the custom commands...)
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set( HEX_FLAGS -O ${FORMAT} -R .eeprom -R .fuse -R .lock -R .signature )
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#| Eep Flags (XXX, I've removed this target from the builds, but keeping the set line as a note)
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set( EEP_FLAGS -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 --no-change-warnings -O ${FORMAT} )
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#| Lss Flags
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set( LSS_FLAGS -h -S -z )
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