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{ "inherits": ["atsame51j19a"], "build-tags": ["feather_m4_can"], "serial": "usb", "serial-port": ["239a:80cd"], "flash-1200-bps-reset": "true", "flash-method": "msd", "msd-volume-name": "FTHRCANBOOT", "msd-firmware-name": "firmware.uf2" }