Worked on the telink-semi/zephyr repository to address a critical device initialization issue by correcting the SRAM unit-address mapping in the npcx9m7fb.dtsi Device Tree file. Focused on embedded systems, the developer analyzed and fixed the reg property to ensure the first address is used as the unit-address, which resolved startup memory mapping problems on NPX platforms. This targeted patch improved system stability and reduced boot-time failures related to SRAM access. The work demonstrated proficiency in Device Tree debugging and C programming, contributing to more reliable device initialization and memory management within the Zephyr RTOS environment for embedded hardware.