CONFIG_CLOCK_STM32_HPRE

hclk prescaler, D2 domain (CPU2) Clock prescaler

Type: int

Help

hclk prescaler, allowed values: 1, 2, 4, 8, 16, 64, 128, 256, 512.

Direct dependencies

BOARD_NUCLEO_H745ZI_Q_M7 || BOARD_NUCLEO_H745ZI_Q_M4 || BOARD_STM32H747I_DISCO_M7 || BOARD_STM32H747I_DISCO_M4 || (SOC_SERIES_STM32H7X && CLOCK_CONTROL_STM32_CUBE && CLOCK_CONTROL)

(Includes any dependencies from ifs and menus.)

Defaults

• 2

• 2

• 1

Kconfig definitions

At <Zephyr>/boards/arm/nucleo_h745zi_q/Kconfig.defconfig:15

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:18

Menu path: (Top)

config CLOCK_STM32_HPRE
    int
    default 2
    depends on BOARD_NUCLEO_H745ZI_Q_M7 || BOARD_NUCLEO_H745ZI_Q_M4

---

At <Zephyr>/boards/arm/stm32h747i_disco/Kconfig.defconfig:21

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:18

Menu path: (Top)

config CLOCK_STM32_HPRE
    int
    default 2
    depends on BOARD_STM32H747I_DISCO_M7 || BOARD_STM32H747I_DISCO_M4

---

At <Zephyr>/drivers/clock_control/Kconfig.stm32h7:29

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:32 → <Zephyr>/drivers/Kconfig:54 → <Zephyr>/drivers/clock_control/Kconfig:25 → <Zephyr>/drivers/clock_control/Kconfig.stm32:133

Menu path: (Top) → Device Drivers → Hardware clock controller support → STM32 Reset & Clock Control

config CLOCK_STM32_HPRE
    int "hclk prescaler, D2 domain (CPU2) Clock prescaler"
    range 1 512
    default 1
    depends on SOC_SERIES_STM32H7X && CLOCK_CONTROL_STM32_CUBE && CLOCK_CONTROL
    help
      hclk prescaler, allowed values: 1, 2, 4, 8, 16, 64, 128, 256, 512.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)