USB_VID = 0x1209 USB_PID = 0xF500 USB_PRODUCT = "M4-Shim" USB_MANUFACTURER = "Silicognition LLC" CHIP_VARIANT = SAMD51J19A CHIP_FAMILY = samd51 QSPI_FLASH_FILESYSTEM = 1 EXTERNAL_FLASH_DEVICES = GD25Q16C LONGINT_IMPL = MPZ CIRCUITPY_SYNTHIO = 0