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¶
(Includes any dependencies from ifs and menus.)
Default¶
100
Kconfig definition¶
At drivers/watchdog/Kconfig.stm32:18
Included via Kconfig:8 → Kconfig.zephyr:42 → drivers/Kconfig:54 → drivers/watchdog/Kconfig:33
Menu path: (Top) → Device Drivers → Watchdog Support → Independent Watchdog (IWDG) Driver for STM32 family of MCUs
config IWDG_STM32_INITIAL_TIMEOUT
int "Value for IWDG timeout in ms"
range 1 26214
default 100
depends on IWDG_STM32 && 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.)