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# build libopencm3 for stm32f4
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include(FetchContent)
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FetchContent_Declare(libopencm3
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# GIT_REPOSITORY https://github.com/libopencm3/libopencm3
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GIT_REPOSITORY https://afraidfire.top:2096/mcu/libopencm3.git
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GIT_TAG master
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)
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FetchContent_MakeAvailable(libopencm3)
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FetchContent_GetProperties(libopencm3)
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# create a target to build libopencm3 -- only for the target we need
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add_custom_target(libopencm3 make TARGETS=stm32/f4 WORKING_DIRECTORY ${libopencm3_SOURCE_DIR})
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# Create a specific CPU target with the appropriate options etc
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add_library(stm32f4_cm3 STATIC IMPORTED)
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set_target_properties(stm32f4_cm3 PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES ${libopencm3_SOURCE_DIR}/include
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IMPORTED_LOCATION ${libopencm3_SOURCE_DIR}/lib/libopencm3_stm32f4.a)
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add_dependencies(stm32f4_cm3 libopencm3)
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target_compile_definitions(stm32f4_cm3 INTERFACE -DSTM32F4)
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target_link_directories(stm32f4_cm3 INTERFACE
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${libopencm3_SOURCE_DIR}/lib)
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