:orphan:

.. title:: IWDG_STM32_INITIAL_TIMEOUT

.. option:: CONFIG_IWDG_STM32_INITIAL_TIMEOUT

*Value for IWDG timeout in ms*

Type: ``int``

Help
====

Set initial timeout value for IWDG in ms if enabled at boot.

The min timeout supported is 1 ms. The max timeout depends on the
MCU's LSI clock frequency and can be calculated with:

  max. prescaler value (256) * max. reload ticks (4096) / LSI freq.

Limiting maximum timeout to a safe value of 26214 ms here, which was
calculated for highest LSI frequency among STM32 MCUs of 40 kHz.

Direct dependencies
===================

\ :option:`IWDG_STM32 <CONFIG_IWDG_STM32>` && \ :option:`WATCHDOG <CONFIG_WATCHDOG>`

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

Default
=======

- 100

Kconfig definition
==================

.. highlight:: kconfig

At ``drivers/watchdog/Kconfig.stm32:18``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:32`` → ``drivers/Kconfig:52`` → ``drivers/watchdog/Kconfig:33``

Menu path: (Top) → Device Drivers → Watchdog Support → Independent Watchdog (IWDG) Driver for STM32 family of MCUs

.. parsed-literal::

    config IWDG_STM32_INITIAL_TIMEOUT
    	int "Value for IWDG timeout in ms"
    	range 1 26214
    	default 100
    	depends on \ :option:`IWDG_STM32 <CONFIG_IWDG_STM32>` && \ :option:`WATCHDOG <CONFIG_WATCHDOG>`
    	help
    	  Set initial timeout value for IWDG in ms if enabled at boot.
	  
    	  The min timeout supported is 1 ms. The max timeout depends on the
    	  MCU's LSI clock frequency and can be calculated with:
	  
    	    max. prescaler value (256) * max. reload ticks (4096) / LSI freq.
	  
    	  Limiting maximum timeout to a safe value of 26214 ms here, which was
    	  calculated for highest LSI frequency among STM32 MCUs of 40 kHz.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*