:orphan:

.. title:: CLOCK_STM32_HPRE

.. option:: 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
===================

\ :option:`BOARD_NUCLEO_H745ZI_Q_M7 <CONFIG_BOARD_NUCLEO_H745ZI_Q_M7>` || \ :option:`BOARD_NUCLEO_H745ZI_Q_M4 <CONFIG_BOARD_NUCLEO_H745ZI_Q_M4>` || \ :option:`BOARD_STM32H747I_DISCO_M7 <CONFIG_BOARD_STM32H747I_DISCO_M7>` || \ :option:`BOARD_STM32H747I_DISCO_M4 <CONFIG_BOARD_STM32H747I_DISCO_M4>` || (\ :option:`SOC_SERIES_STM32H7X <CONFIG_SOC_SERIES_STM32H7X>` && \ :option:`CLOCK_CONTROL_STM32_CUBE <CONFIG_CLOCK_CONTROL_STM32_CUBE>` && \ :option:`CLOCK_CONTROL <CONFIG_CLOCK_CONTROL>`)

*(Includes any dependencies from ifs and menus.)*

Defaults
========

- 2
- 2
- 1

Kconfig definitions
===================

.. highlight:: kconfig

At ``boards/arm/nucleo_h745zi_q/Kconfig.defconfig:15``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. parsed-literal::

    config CLOCK_STM32_HPRE
    	int
    	default 2
    	depends on \ :option:`BOARD_NUCLEO_H745ZI_Q_M7 <CONFIG_BOARD_NUCLEO_H745ZI_Q_M7>` || \ :option:`BOARD_NUCLEO_H745ZI_Q_M4 <CONFIG_BOARD_NUCLEO_H745ZI_Q_M4>`

----

At ``boards/arm/stm32h747i_disco/Kconfig.defconfig:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. parsed-literal::

    config CLOCK_STM32_HPRE
    	int
    	default 2
    	depends on \ :option:`BOARD_STM32H747I_DISCO_M7 <CONFIG_BOARD_STM32H747I_DISCO_M7>` || \ :option:`BOARD_STM32H747I_DISCO_M4 <CONFIG_BOARD_STM32H747I_DISCO_M4>`

----

At ``drivers/clock_control/Kconfig.stm32h7:29``

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

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

.. parsed-literal::

    config CLOCK_STM32_HPRE
    	int "hclk prescaler, D2 domain (CPU2) Clock prescaler"
    	range 1 512
    	default 1
    	depends on \ :option:`SOC_SERIES_STM32H7X <CONFIG_SOC_SERIES_STM32H7X>` && \ :option:`CLOCK_CONTROL_STM32_CUBE <CONFIG_CLOCK_CONTROL_STM32_CUBE>` && \ :option:`CLOCK_CONTROL <CONFIG_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.)*