Luckfox Lume Linux Development Board, Allwinner T153, Dual GbE, PoE

The board typically runs a custom Buildroot Linux distribution provided by Luckfox. You flash the system image to the SPI NAND flash using the USB Type-C port in FEL (bootloader) mode. Connect the board via USB-C to your host PC, use a tool like 'sunxi-fel' to enter FEL mode, and then write the pre-compiled image. Detailed instructions and image files are available in the official Luckfox GitHub repository or documentation wiki.

Power-over-Ethernet is enabled by connecting the included PoE module between your standard PoE switch/injector and the board's primary Ethernet port. The module handles the power negotiation (802.3af/at) and delivers regulated 5V to the board. Ensure your switch provides sufficient PoE power budget. The secondary Ethernet port remains a standard data port. You can power the board solely via PoE, eliminating the need for a separate 5V USB power adapter in deployed installations.

Yes, the board provides independent MIPI CSI (2-lane) and MIPI DSI (4-lane) interfaces, allowing simultaneous connection of a camera module and a display. This is ideal for building standalone vision systems with a local user interface. You will need compatible MIPI CSI-2 camera modules (with appropriate drivers in the Linux kernel) and MIPI DSI displays. Check the Luckfox documentation for a list of tested peripherals and wiring diagrams for the FPC connectors.

The RISC-V E907 core serves as a real-time co-processor within the Allwinner T153 SoC. It is designed to handle time-critical, low-latency tasks independently of the main Linux OS running on the Arm cores. Developers can offload functions like GPIO bit-banging, precise PWM control, sensor polling, or real-time communication protocols to the RISC-V core, ensuring deterministic timing while the Arm cores manage higher-level application logic and networking, resulting in a more responsive and efficient system.