# Zephyr Kernel Configuration CONFIG_ARM=y CONFIG_SOC_SERIES_STM32F0X=y # Platform Configuration CONFIG_SOC_STM32F070XB=y CONFIG_BOARD_NUCLEO_F070RB=y # General Kernel Options CONFIG_CORTEX_M_SYSTICK=y CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=48000000 # Serial Drivers CONFIG_SERIAL=y CONFIG_UART_INTERRUPT_DRIVEN=y # enable console CONFIG_CONSOLE=y CONFIG_UART_CONSOLE=y # Pinmux Driver CONFIG_PINMUX=y # GPIO Controller CONFIG_GPIO=y # Clock configuration CONFIG_CLOCK_CONTROL=y # SYSCLK selection CONFIG_CLOCK_STM32_HSE_CLOCK=8000000 CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y # PLL configuration CONFIG_CLOCK_STM32_PLL_SRC_HSE=y # however, the board does not have an external oscillator, so just use # the 8MHz clock signal coming from integrated STLink CONFIG_CLOCK_STM32_HSE_BYPASS=y CONFIG_CLOCK_STM32_PLL_MULTIPLIER=6 CONFIG_CLOCK_STM32_AHB_PRESCALER=1 CONFIG_CLOCK_STM32_APB1_PRESCALER=1