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The same queries: this browser (wasm) and the board
Twelve queries (geodb_fw_core::query::COMPARE): the cities within the radius and the ten nearest, here in WebAssembly on geodb.fw and, when connected, on the chip itself (216 MHz Cortex-M7, the image in flash). geodb-board compare adds globe-fw (geodb-core on the same cities) on the host.
The board's own code (geodb-fw-core: the flash image, the queries, the software globe and the whole 800 × 480 screen), compiled to WebAssembly and run on the same geodb.fw image the board holds in flash. Drag or flick the globe, tap a point to look at it, use the buttons as on the LCD. Connected (through geodb-board bridge on a host in the board's network), the screen is the board's view and your touches move the real board.
Your own board: geodb-stm32f769i-disco.zip
holds what a STM32F769I-DISCO fresh from the box needs: the bootloader, the program and this very
geodb.fw, with addresses and checksums, and flash.sh (probe-rs over the board's ST-LINK).
cities: dr5hn (CC-BY-4.0) · github.com/holg/geodb-rs