LD_FILE = boards/samd21x18-bootloader.ld USB_VID = 0x239A USB_PID = 0x8028 USB_PRODUCT = "pIRKey M0" USB_MANUFACTURER = "Adafruit Industries LLC" INTERNAL_FLASH_FILESYSTEM = 1 LONGINT_IMPL = NONE CHIP_VARIANT = SAMD21E18A CHIP_FAMILY = samd21