boards/arm/nucleo_g474re/nucleo_g474re_defconfig

# SPDX-License-Identifier: Apache-2.0

CONFIG_SOC_SERIES_STM32G4X=y
CONFIG_SOC_STM32G474XX=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.
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 HSE (24MHz) to feed into PLL
CONFIG_CLOCK_STM32_PLL_SRC_HSE=y
CONFIG_CLOCK_STM32_HSE_CLOCK=24000000

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_M_DIVISOR=4
# CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=75

# Produce 170MHz clock at PLLCLK output
CONFIG_CLOCK_STM32_PLL_M_DIVISOR=6
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

# Enable HW stack protection
CONFIG_HW_STACK_PROTECTION=y