Worked on stabilizing the I2S data path in the Zephyr4Microchip/zephyr repository, focusing on supporting 32-bit word sizes for STM32-based platforms. Addressed a critical issue in DMA configuration by updating the length handling logic to be word-size aware, rather than assuming a fixed 16-bit size. This fix prevented zero-filled buffers in I2S streams, improving audio data integrity and reducing downstream debugging efforts. The work involved C programming and embedded systems expertise, particularly in DMA configuration and driver development. Changes were validated in the STM32 I2S DMA path, preparing the codebase for broader compatibility with 32-bit peripherals.