
Developed robust real-time clock (RTC) support for the STM32U3 family and nucleo_u385rg_q board within the zephyrproject-rtos/zephyr repository, enabling reliable timekeeping, alarm functionality, and calibration across STM32U3 platforms. The work involved extending the STM32 RTC driver in C to handle new hardware features, configuring device tree nodes and overlays using DTS and YAML, and integrating RTC capabilities at both the driver and board levels. Comprehensive test configurations were introduced to validate calibration and alarm features, resulting in improved reliability and test coverage for embedded systems requiring precise time management and hardware integration in real-time applications.
December 2025: RTC support for STM32U3 family and nucleo_u385rg_q board delivered in the Zephyr project, enabling robust timekeeping, alarms, and calibration across STM32U3 platforms.
December 2025: RTC support for STM32U3 family and nucleo_u385rg_q board delivered in the Zephyr project, enabling robust timekeeping, alarms, and calibration across STM32U3 platforms.

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