cjacker/wm_sdk_w80x ? reverse-engineered prompt

Build me a simple starter firmware project for the WinnerMicro W800 or W801 using this SDK.

I want it to compile cleanly from the root with the provided build system, let me adjust settings with the config menu, and be easy to flash to a development board over serial. Please set it up so there’s a basic app in the user code area, plus a small demo that proves the board is alive, like printing to the serial monitor on boot and doing something obvious I can verify. If there are any board or download settings that need to be chosen in the config menu, make sensible defaults and keep the setup easy to change. Also make sure the usual commands for building, flashing, and opening the monitor work as expected. If you need current SDK details or toolchain info, look up the latest docs online first.