58 lines
1.5 KiB
CMake
58 lines
1.5 KiB
CMake
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# ###############################
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# AVR-GCC toolchain file
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# ###############################
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# Specify the cross-compiler
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set(CMAKE_SYSTEM_NAME Generic)
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set(CMAKE_SYSTEM_VERSION 1)
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set(CMAKE_SYSTEM_PROCESSOR avr)
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# Without this flag, CMake is unable to pass the test compilation check
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set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
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# Specify the compiler and linker
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#set(AVR_MCU atmega328p) # The old Classic
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#set(AVR_MCU attiny85) # The older ATtiny series, avr25
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set(AVR_MCU attiny404) # this is the avrxmega3 series
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#set(AVR_MCU avr64dd28) # Newer DX series, avrxmega2
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# The default frequency of an 328p devboard using the external crystal.
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#set(F_CPU 16000000UL)
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set(F_CPU 20000000UL)
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#set(F_CPU 8000000)
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#set(F_PER 3333333)
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add_compile_definitions(F_CPU=${F_CPU})
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# add_compile_definitions(MCU=atmega328p)
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#add_compile_definitions(__AVR_ATmega328P__)
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add_compile_definitions(__AVR_ATtiny404__)
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# Set up the programmer for it
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#set(PROGRAMMER usbasp-clone)
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#set(PROGRAMMER arduino)
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set(PROGRAMMER serialupdi)
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# Set the Port for the programmer
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set(PORT /dev/ttyUSB0)
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# Define the toolchain executables
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set(CMAKE_C_COMPILER avr-gcc)
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set(CMAKE_CXX_COMPILER avr-g++)
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set(CMAKE_ASM_COMPILER avr-gcc)
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set(CMAKE_LINKER avr-ld)
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set(CMAKE_OBJCOPY avr-objcopy)
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set(CMAKE_SIZE avr-size)
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# Define compile options
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set(CMAKE_C_FLAGS " -Os -mmcu=${AVR_MCU} -DF_CPU=${F_CPU}")
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set(CMAKE_CXX_FLAGS "-mmcu=${AVR_MCU} -DF_CPU=${F_CPU}")
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set(CMAKE_EXE_LINKER_FLAGS_INIT "-mmcu=${AVR_MCU}")
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# Define the archiver and other tools
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set(CMAKE_AR avr-ar)
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set(CMAKE_RANLIB avr-ranlib)
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