
Kevin Chan developed and enhanced hardware interface drivers and system features for the nrfconnect/sdk-zephyr and zephyrproject-rtos/zephyr repositories, focusing on embedded platforms like PSC3, PSE84, and CM55. He implemented asynchronous UART and SPI drivers with DMA support, enabling non-blocking, high-throughput communication and efficient data transfer. Using C, CMake, and Zephyr RTOS, Kevin expanded hardware compatibility by integrating SDHC/SDMMC/SDIO support and refining Wi-Fi and system clock initialization. His work included debugging DMA channel management and enabling advanced CPU core debugging, demonstrating depth in hardware abstraction, device configuration, and robust testing to ensure reliable operation across evolving embedded hardware.
January 2026: Delivered SPI-DMA integration, DMA channel state fix, Wi-Fi init priority adjustment, and CPU core disconnect/reconnect enhancements. These changes yield higher SPI data throughput via DMA, more reliable DMA channel management, improved startup sequencing between Wi‑Fi and SDHC modules, and expanded advanced debugging capabilities on the PSE84 platform.
January 2026: Delivered SPI-DMA integration, DMA channel state fix, Wi-Fi init priority adjustment, and CPU core disconnect/reconnect enhancements. These changes yield higher SPI data throughput via DMA, more reliable DMA channel management, improved startup sequencing between Wi‑Fi and SDHC modules, and expanded advanced debugging capabilities on the PSE84 platform.
December 2025 monthly summary focusing on delivering SDHC/SDMMC/SDIO hardware support for PSE84/CM55 platforms in Zephyr and stabilizing core timing; plus PSE84 Wi‑Fi shell configuration. This work enhances hardware compatibility, accelerates testing, and improves timing reliability on PSE84-based boards across Zephyr and Nordic Zephyr SDK.
December 2025 monthly summary focusing on delivering SDHC/SDMMC/SDIO hardware support for PSE84/CM55 platforms in Zephyr and stabilizing core timing; plus PSE84 Wi‑Fi shell configuration. This work enhances hardware compatibility, accelerates testing, and improves timing reliability on PSE84-based boards across Zephyr and Nordic Zephyr SDK.
November 2025 monthly summary for repository nrfconnect/sdk-zephyr focusing on delivering an asynchronous UART API with DMA support across PSC3 and PSE84 platforms, platform overlays/configs for hardware testing, and DMA integration. The work provides a non-blocking, high-throughput UART path, broadens hardware support, and improves maintainability by cleaning up deprecated references. This release enables efficient UART communication on new hardware and strengthens test coverage across PSC3 and PSE84.
November 2025 monthly summary for repository nrfconnect/sdk-zephyr focusing on delivering an asynchronous UART API with DMA support across PSC3 and PSE84 platforms, platform overlays/configs for hardware testing, and DMA integration. The work provides a non-blocking, high-throughput UART path, broadens hardware support, and improves maintainability by cleaning up deprecated references. This release enables efficient UART communication on new hardware and strengthens test coverage across PSC3 and PSE84.

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