Worked on the apache/nuttx repository to deliver enhancements for the STM32H7 Window Watchdog Timer, focusing on improving system reliability and configurability in embedded environments. The development involved extending divider options, refining status calculation logic, and ensuring proper initialization of the watchdog clock, all implemented in C for real-time operating systems. By clearing the Early Wakeup Interrupt Flag before startup, the changes reduced the risk of spurious resets and contributed to safer operation of time-critical tasks. This work demonstrated a strong understanding of device drivers, hardware interaction, and microcontroller programming, resulting in measurable stability improvements for the Nuttx kernel.