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ifeq ($(USE_HAL_I2C_FALLBACK),yes)
# Fallback SW driver.
ifeq ($(USE_SMART_BUILD),yes)
ifneq ($(findstring HAL_USE_I2C TRUE,$(HALCONF)),)
PLATFORMSRC += $(CHIBIOS)/os/hal/lib/fallback/I2C/hal_i2c_lld.c
endif
else
PLATFORMSRC += $(CHIBIOS)/os/hal/lib/fallback/I2C/hal_i2c_lld.c
endif
PLATFORMINC += $(CHIBIOS)/os/hal/lib/fallback/I2C
else
# Default HW driver.
ifeq ($(USE_SMART_BUILD),yes)
ifneq ($(findstring HAL_USE_I2C TRUE,$(HALCONF)),)
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv3/hal_i2c_lld.c
endif
else
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv3/hal_i2c_lld.c
endif
PLATFORMINC += $(CHIBIOS)/os/hal/ports/STM32/LLD/I2Cv3
endif
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