FEATURES_PROVIDED += cpp FEATURES_PROVIDED += periph_uart FEATURES_PROVIDED += periph_gpio FEATURES_PROVIDED += periph_spi FEATURES_PROVIDED += periph_i2c FEATURES_PROVIDED += periph_pwm FEATURES_PROVIDED += periph_random FEATURES_PROVIDED += periph_adc FEATURES_PROVIDED += periph_dac FEATURES_PROVIDED += periph_cpuid FEATURES_MCU_GROUP = cortex_m4 FEATURES_CONFLICT += periph_spi:periph_dac FEATURES_CONFLICT_MSG += "On stm32f4discovery boards there are the same pins for the DAC and/or SPI_0."