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###| CMAKE Kiibohd Controller |###
#
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# Jacob Alexander 2011-2014
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# Due to this file's usefulness:
#
# Released into the Public Domain
#
# avr-gcc CMake Build Configuration
#
###
#| Set the Compilers (must be set first)
include ( CMakeForceCompiler )
cmake_force_c_compiler ( avr-gcc AVRCCompiler )
cmake_force_cxx_compiler ( avr-g++ AVRCxxCompiler )
#| Compiler Binaries
set ( OBJCOPY "avr-objcopy" )
set ( OBJDUMP "avr-objdump" )
set ( NM "avr-nm" )
set ( SIZE "avr-size" )
###
# Atmel Defines and Linker Options
#
#| MCU Name
#| You _MUST_ set this to match the board you are using
#| type "make clean" after changing this, so all files will be rebuilt
#|
#| "at90usb162" # Teensy 1.0
#| "atmega32u4" # Teensy 2.0
#| "at90usb646" # Teensy++ 1.0
#| "at90usb1286" # Teensy++ 2.0
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set ( MCU "atmega32u4" )
#set( MCU "at90usb1286" )
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message ( STATUS "MCU Selected:" )
message ( "${MCU}" )
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#| Extra Compiler Sources
#| Mostly for convenience functions like interrupt handlers
set ( COMPILER_SRCS
# XXX Not needed for avr-gcc
)
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#| CPU Type
#| This is only informational for AVR microcontrollers
#| The field can be determined by the microcontroller chip, but currently only one CPU type is used atm
set ( CPU "megaAVR" )
message ( STATUS "CPU Selected:" )
message ( "${CPU}" )
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#| USB Defines
set ( VENDOR_ID "0x16C0" )
set ( PRODUCT_ID "0x047D" )
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#| Compiler flag to set the C Standard level.
#| c89 = "ANSI" C
#| gnu89 = c89 plus GCC extensions
#| c99 = ISO C99 standard (not yet fully implemented)
#| gnu99 = c99 plus GCC extensions
set ( CSTANDARD "-std=gnu99" )
#| Warning Options
#| -Wall...: warning level
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set ( WARN "-Wall" )
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#| Tuning Options
#| -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.
#| (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
set ( OPT "s" )
#| Output Format
#| srec, ihex, binary
set ( FORMAT "ihex" )
#| Processor frequency.
#| Normally the first thing your program should do is set the clock prescaler,
#| so your program will run at the correct speed. You should also set this
#| variable to same clock speed. The _delay_ms() macro uses this, and many
#| examples use this variable to calculate timings. Do not add a "UL" here.
set ( F_CPU "16000000" )
#| Dependency Files
#| Compiler flags to generate dependency files.
set ( GENDEPFLAGS "-MMD -MP" )
#| Compiler Flags
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add_definitions ( "-mmcu=${MCU} -DF_CPU=${F_CPU} -D_${MCU}_=1 -O${OPT} ${TUNING} ${WARN} ${CSTANDARD} ${GENDEPFLAGS}" )
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#| Linker Flags
set ( LINKER_FLAGS "-mmcu=${MCU} -Wl,-Map=${TARGET}.map,--cref -Wl,--relax -Wl,--gc-sections" )
#| Hex Flags (XXX, CMake seems to have issues if you quote the arguments for the custom commands...)
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 } )
#| Lss Flags
set ( LSS_FLAGS -h -S -z )