boards/arm/nucleo_g431rb/nucleo_g431rb_defconfig

# SPDX-License-Identifier: Apache-2.0

CONFIG_ARM=y
CONFIG_SOC_SERIES_STM32G4X=y
CONFIG_SOC_STM32G431XX=y

# 170MHz system clock only in 'boost power' mode. RM0440, section
# 5.1.5 states that the R1MODE bit must be cleared before system can
# be 170MHz. This requires an update to the stm32 clock control
# driver, so default to 150MHz until then.
# CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=170000000

# 150MHz system clock in 'normal power' mode
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=150000000

# enable uart driver
CONFIG_SERIAL=y

# enable pinmux
CONFIG_PINMUX=y

# enable GPIO
CONFIG_GPIO=y

# clock configuration
CONFIG_CLOCK_CONTROL=y

# Use PLLCLK for SYSCLK
CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y

# Use HSI (16MHz) to feed into PLL
CONFIG_CLOCK_STM32_PLL_SRC_HSI=y

CONFIG_CLOCK_STM32_PLL_M_DIVISOR=4
CONFIG_CLOCK_STM32_PLL_P_DIVISOR=7
CONFIG_CLOCK_STM32_PLL_Q_DIVISOR=2
CONFIG_CLOCK_STM32_PLL_R_DIVISOR=2

# Produce 150MHz clock at PLLCLK output
CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=75

# Comment out above and uncomment below for 170MHz. Note that you
# must have configured the mcu for boost power mode.
# CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=85

# Produce Max (150MHz or 170MHz) HCLK
CONFIG_CLOCK_STM32_AHB_PRESCALER=1

# Produce Max (150MHz or 170MHz) APB1 clocks and APB2 clocks
CONFIG_CLOCK_STM32_APB1_PRESCALER=1
CONFIG_CLOCK_STM32_APB2_PRESCALER=1

# Console
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=y

# Enable MPU
CONFIG_ARM_MPU=y