LD_FILE = boards/samd21x18-bootloader.ld USB_VID = 0x04D8 USB_PID = 0xED5F USB_PRODUCT = "uChip CircuitPython" USB_MANUFACTURER = "Itaca Innovation" INTERNAL_FLASH_FILESYSTEM = 1 LONGINT_IMPL = NONE CIRCUITPY_SMALL_BUILD = 1 CHIP_VARIANT = SAMD21E18A CHIP_FAMILY = samd21