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Contains startup code, crash handling and additional RP2040-specific support code.
PICO_BOARD
default: pico
Select development board in use. List available boards with make list-boards.
The SDK defines various useful bits of information in a board header file, such as the default LED pin, how much flash memory it has, etc. Use make board-info to list these values.
If using custom hardware, select none and provide definitions as required.
ENABLE_BOOTSEL
default: 1 for debug, 0 for release builds
This setting is provided to make it easy to re-program RP2040 boards during development. When enabled, Sming monitors the BOOTSEL button and restartS in boot mode if pressed.