BlackMark
cdca5219d0
Same driver surface as the yazoalfa version — clock and alarm get/set, alarm interrupts, flag check/clear — plus oscillator-stop detection and die temperature. One source for tiny85 (software I2C) and mega328P (TWI), built against libavr in both generated and reflect mode, byte-identical .text across modes. Errors surface as std::expected instead of being dropped; weekday-rate alarms now really set the DY bit (legacy cleared it); multi-register access is one coherent bus transaction. Legacy stays on master. Co-Authored-By: Claude <noreply@anthropic.com>
26 lines
811 B
CMake
26 lines
811 B
CMake
cmake_minimum_required(VERSION 3.28)
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project(ds3231 LANGUAGES CXX)
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# libavr comes from a local checkout (LIBAVR_ROOT cache/env variable) or,
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# failing that, straight from the forge. The toolchain file also lives in
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# that checkout — see CMakePresets.json.
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include(FetchContent)
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if(NOT LIBAVR_ROOT AND DEFINED ENV{LIBAVR_ROOT})
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set(LIBAVR_ROOT $ENV{LIBAVR_ROOT})
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endif()
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if(LIBAVR_ROOT)
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FetchContent_Declare(libavr SOURCE_DIR ${LIBAVR_ROOT})
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else()
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FetchContent_Declare(libavr GIT_REPOSITORY git@git.blackmark.me:avr/libavr.git GIT_TAG main)
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endif()
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FetchContent_MakeAvailable(libavr)
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add_library(ds3231 INTERFACE)
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target_include_directories(ds3231 INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/include)
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target_link_libraries(ds3231 INTERFACE libavr)
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if(PROJECT_IS_TOP_LEVEL)
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add_subdirectory(example)
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endif()
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