Support for the Adafruit-Itsybitsy-M4. More...
Support for the Adafruit-Itsybitsy-M4.
This is a small formfactor (only 1.4" long by 0.7" wide) SAM D51 board made by Adafruit.
The board features one red LED (LD1), one DotStar / APA102 RGB LED, a reset button as well as 21 configurable external pins(6 of which can be analog in).
The board is flashed using its on-board boot loader.
The process is automated in the usual
make flash target.
If RIOT is already running on the board, it will automatically reset the CPU and enter the bootloader. If some other firmware is running or RIOT crashed, you need to enter the bootloader manually by double tapping the board's reset button.
Readiness of the bootloader is indicated by LD1 pulsing in red.
The usual way to obtain a console on this board is using an emulated USB serial port.
|Board specific definitions for the Adafruit ItsyBitsy M4.
|Board specific configuration of direct mapped GPIOs.
|Configuration of CPU peripherals for the Adafruit ItsyBitsy M4.