48 lines
1010 B
Plaintext
48 lines
1010 B
Plaintext
# SPDX-License-Identifier: Apache-2.0
|
|
|
|
CONFIG_ARM=y
|
|
CONFIG_BOARD_DISCO_L475_IOT1=y
|
|
CONFIG_SOC_SERIES_STM32L4X=y
|
|
CONFIG_SOC_STM32L475XX=y
|
|
# 80MHz system clock
|
|
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=80000000
|
|
|
|
# enable uart driver
|
|
CONFIG_SERIAL=y
|
|
CONFIG_UART_INTERRUPT_DRIVEN=y
|
|
|
|
# enable pinmux
|
|
CONFIG_PINMUX=y
|
|
|
|
# enable GPIO
|
|
CONFIG_GPIO=y
|
|
|
|
# clock configuration
|
|
CONFIG_CLOCK_CONTROL=y
|
|
CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y
|
|
# use HSI as PLL input
|
|
CONFIG_CLOCK_STM32_PLL_SRC_HSI=y
|
|
|
|
# produce 80MHz clock at PLL output
|
|
CONFIG_CLOCK_STM32_PLL_M_DIVISOR=1
|
|
CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=20
|
|
CONFIG_CLOCK_STM32_PLL_P_DIVISOR=7
|
|
CONFIG_CLOCK_STM32_PLL_Q_DIVISOR=2
|
|
CONFIG_CLOCK_STM32_PLL_R_DIVISOR=4
|
|
|
|
# Configure bus clocks
|
|
CONFIG_CLOCK_STM32_AHB_PRESCALER=1
|
|
CONFIG_CLOCK_STM32_APB1_PRESCALER=1
|
|
CONFIG_CLOCK_STM32_APB2_PRESCALER=1
|
|
|
|
# LSE oscillator is populated, enable MSI PLL-Mode
|
|
CONFIG_CLOCK_STM32_LSE=y
|
|
CONFIG_CLOCK_STM32_MSI_PLL_MODE=y
|
|
|
|
# console
|
|
CONFIG_CONSOLE=y
|
|
CONFIG_UART_CONSOLE=y
|
|
|
|
# enable MPU
|
|
CONFIG_ARM_MPU=y
|