# SPDX-License-Identifier: Apache-2.0 CONFIG_ARM=y CONFIG_BOARD_NUCLEO_F401RE=y CONFIG_SOC_SERIES_STM32F4X=y CONFIG_SOC_STM32F401XE=y CONFIG_CORTEX_M_SYSTICK=y # 84MHz system clock CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=84000000 # Enable MPU CONFIG_ARM_MPU=y CONFIG_SERIAL=y # console CONFIG_CONSOLE=y CONFIG_UART_CONSOLE=y # enable pinmux CONFIG_PINMUX=y # enable GPIO CONFIG_GPIO=y # clock configuration CONFIG_CLOCK_CONTROL=y # Clock configuration for Cube Clock control driver CONFIG_CLOCK_STM32_HSE_CLOCK=8000000 CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y # use HSE as PLL input 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 # produce 84MHz clock at PLL output CONFIG_CLOCK_STM32_PLL_M_DIVISOR=8 CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=336 CONFIG_CLOCK_STM32_PLL_P_DIVISOR=4 CONFIG_CLOCK_STM32_PLL_Q_DIVISOR=7 CONFIG_CLOCK_STM32_AHB_PRESCALER=1 CONFIG_CLOCK_STM32_APB1_PRESCALER=2 CONFIG_CLOCK_STM32_APB2_PRESCALER=1