| # STM32 IWDG configuration |
| |
| # Copyright (c) 2016 Open-RnD Sp. z o.o. |
| # Copyright (c) 2017 RnDity Sp. z o.o. |
| # Copyright (c) 2019 Centaur Analytics, Inc |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| DT_COMPAT_ST_STM32_IWDG := st,stm32-watchdog |
| DT_COMPAT_ST_STM32_WWDG := st,stm32-window-watchdog |
| |
| config IWDG_STM32 |
| bool "Independent Watchdog (IWDG) Driver for STM32 family of MCUs" |
| default $(dt_compat_enabled,$(DT_COMPAT_ST_STM32_IWDG)) |
| depends on SOC_FAMILY_STM32 |
| help |
| Enable IWDG driver for STM32 line of MCUs |
| |
| config IWDG_STM32_INITIAL_TIMEOUT |
| int "Value for IWDG timeout in ms" |
| depends on IWDG_STM32 |
| default 100 |
| range 1 26214 |
| 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. |
| |
| config WWDG_STM32 |
| bool "System Window Watchdog (WWDG) Driver for STM32 family of MCUs" |
| default $(dt_compat_enabled,$(DT_COMPAT_ST_STM32_WWDG)) |
| depends on SOC_FAMILY_STM32 |
| help |
| Enable WWDG driver for STM32 line of MCUs |
