{bp-17045} arch/arm/stm32h7: Fix and enhance WWDG (Window Watchdog) support#17094
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xiaoxiang781216 merged 1 commit intoapache:releases/12.11from Sep 27, 2025
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{bp-17045} arch/arm/stm32h7: Fix and enhance WWDG (Window Watchdog) support#17094xiaoxiang781216 merged 1 commit intoapache:releases/12.11from
xiaoxiang781216 merged 1 commit intoapache:releases/12.11from
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This patch addresses several issues and adds enhancements to the WWDG (Window Watchdog) implementation for the STM32H7 platform. The changes include: - Extend the definitions of WWDG_CFR_PCLK1 macros to support dividers up to 128, and update the stm32_settimeout() function to consider this extended range. - Fix the "elapsed" calculations in the stm32_getstatus() function to ensure correct time remaining calculations. - Clear the EWIF (Early Wakeup Interrupt Flag) bit in the stm32_start() function, as this bit might be set by hardware before the watchdog is actually started. - Initialize the WWDG clock in the RCC_APB3ENR register and set the RCC_GCR_WW1RSC bit as per the STM32 reference manual to ensure proper behavior when enabling the WWDG1. Signed-off-by: Szymon Magrian <szymon.magrian@hexagon.com>
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Summary
This patch addresses several issues and adds enhancements to the WWDG (Window Watchdog) implementation for the STM32H7 platform. The changes include:
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