ifeq ($(USE_SMART_BUILD),yes) ifneq ($(findstring HAL_USE_I2S TRUE,$(HALCONF)),) PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/SPIv2/hal_i2s_lld.c endif ifneq ($(findstring HAL_USE_SPI TRUE,$(HALCONF)),) PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/SPIv2/hal_spi_lld.c endif else PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/SPIv2/hal_i2s_lld.c PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/SPIv2/hal_spi_lld.c endif PLATFORMINC += $(CHIBIOS)/os/hal/ports/STM32/LLD/SPIv2