Developed and delivered a dynamic UART configuration feature for the uart_imx driver within the zephyrproject-rtos/zephyr repository, enabling runtime adjustment of baud rate, data bits, parity, and flow control without requiring a device reboot. This work leveraged embedded C programming and driver development skills to enhance the flexibility of UART tuning on i.MX platforms. By implementing runtime configurability, the solution reduced deployment time and improved the adaptability of embedded systems using Zephyr. The approach involved deep integration with Zephyr internals and careful code review, resulting in a robust enhancement to the UART subsystem that streamlines hardware configuration workflows.