mixer-slider/firmware/avr-toolchain.cmake

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CMake
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# give info about target
SET(CMAKE_SYSTEM_NAME Generic)
SET(CMAKE_SYSTEM_PROCESSOR avr)
# find tools
find_program(AVR_CC avr-gcc)
find_program(AVR_CXX avr-g++)
find_program(AVR_OBJCOPY avr-objcopy)
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find_program(AVR_OBJDUMP avr-objdump)
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find_program(AVR_SIZE_TOOL avr-size)
# set compiler (globally)
SET(CMAKE_C_COMPILER ${AVR_CC})
SET(CMAKE_CXX_COMPILER ${AVR_CXX})
SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS)
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if(NOT AVR_UPLOADTOOL)
set(
AVR_UPLOADTOOL avrdude
CACHE STRING "Set default upload tool: avrdude"
)
find_program(AVR_UPLOADTOOL avrdude)
endif(NOT AVR_UPLOADTOOL)
# default upload tool port
if(NOT AVR_UPLOADTOOL_PORT)
set(
AVR_UPLOADTOOL_PORT usb
CACHE STRING "Set default upload tool port: usb"
)
endif(NOT AVR_UPLOADTOOL_PORT)
# default programmer (hardware)
if(NOT AVR_PROGRAMMER)
set(
AVR_PROGRAMMER atmelice_isp
CACHE STRING "Set default programmer hardware model: avrispmkII"
)
endif(NOT AVR_PROGRAMMER)
# prepare base flags for upload tool
set(AVR_UPLOADTOOL_BASE_OPTIONS -p ${AVR_MCU} -c ${AVR_PROGRAMMER} -B5)
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add_definitions(-mmcu=${AVR_MCU} -D__${AVR_MCU}__ -DF_CPU=8000000 --std=c99)
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function(add_avr_executable EXECUTABLE_NAME)
if(NOT ARGN)
message(FATAL_ERROR "No source files given for ${EXECUTABLE_NAME}.")
endif(NOT ARGN)
# set file names
set(elf_file ${EXECUTABLE_NAME})
set(hex_file ${EXECUTABLE_NAME}.hex)
set(lst_file ${EXECUTABLE_NAME}.lst)
set(map_file ${EXECUTABLE_NAME}.map)
set(eeprom_image ${EXECUTABLE_NAME}_eeprom.hex)
# elf file
add_executable(${elf_file} EXCLUDE_FROM_ALL ${ARGN})
set_target_properties(
${elf_file}
PROPERTIES
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COMPILE_FLAGS "-mmcu=${AVR_MCU} -O3"
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LINK_FLAGS "-mmcu=${AVR_MCU} -Wl,--gc-sections -mrelax -Wl,-Map,${map_file}"
)
add_custom_command(
OUTPUT ${hex_file}
COMMAND
${AVR_OBJCOPY} -j .text -j .data -O ihex ${elf_file} ${hex_file}
COMMAND
${AVR_SIZE_TOOL} ${AVR_SIZE_ARGS} ${elf_file}
DEPENDS ${elf_file}
)
add_custom_command(
OUTPUT ${lst_file}
COMMAND
${AVR_OBJDUMP} -d ${elf_file} > ${lst_file}
DEPENDS ${elf_file}
)
# eeprom
add_custom_command(
OUTPUT ${eeprom_image}
COMMAND
${AVR_OBJCOPY} -j .eeprom --set-section-flags=.eeprom=alloc,load
--change-section-lma .eeprom=0 --no-change-warnings
-O ihex ${elf_file} ${eeprom_image}
DEPENDS ${elf_file}
)
add_custom_target(
build_${EXECUTABLE_NAME}
ALL
DEPENDS ${hex_file} ${lst_file} ${eeprom_image}
)
set_target_properties(
build_${EXECUTABLE_NAME}
PROPERTIES
OUTPUT_NAME "${elf_file}"
)
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# upload - with avrdude
add_custom_target(
upload_${EXECUTABLE_NAME}
${AVR_UPLOADTOOL} ${AVR_UPLOADTOOL_BASE_OPTIONS} ${AVR_UPLOADTOOL_OPTIONS}
-U flash:w:${hex_file}
-P ${AVR_UPLOADTOOL_PORT}
DEPENDS ${hex_file}
COMMENT "Uploading ${hex_file} to ${AVR_MCU} using ${AVR_PROGRAMMER}"
)
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# clean
get_directory_property(clean_files ADDITIONAL_MAKE_CLEAN_FILES)
set_directory_properties(
PROPERTIES
ADDITIONAL_MAKE_CLEAN_FILES "${map_file}"
)
endfunction(add_avr_executable)