<commit_before>{
  "build": {
    "core": "adafruit",
    "cpu": "cortex-m4",
    "extra_flags": [
      "-DARDUINO_ARCH_SAMD",
      "-DARDUINO_ITSYBITSY_M4",
      "-DADAFRUIT_ITSYBITSY_M4_EXPRESS",
      "-D__SAMD51J19A__",
      "-D__SAMD51__",
      "-D__FPU_PRESENT",
      "-DARM_MATH_CM4",
      "-DCRYSTALLESS"
    ],
    "f_cpu": "120000000L",
    "hwids": [
      [
        "0x239A",
        "0x802B"
      ],
      [
        "0x239A",
        "0x002B"
      ]
    ],
    "ldscript": "flash_with_bootloader.ld",
    "mcu": "samd51j19a",
    "system": "samd",
    "usb_product": "Adafruit ItsyBitsy M4",
    "variant": "itsybitsy_m4"
  },
  "debug": {
    "jlink_device": "ATSAMD51J19",
    "openocd_chipname": "at91samd51j19",
    "svd_path": "ATSAMD51J19A.svd"
  },
  "frameworks": [
    "arduino"
  ],
  "name": "Adafruit ItsyBitsy M4 (SAMD51)",
  "upload": {
    "disable_flushing": true,
    "maximum_ram_size": 196608,
    "maximum_size": 507904,
    "native_usb": true,
    "protocol": "sam-ba",
    "protocols": [
      "sam-ba",
      "blackmagic",
      "jlink",<commit_msg>Fix microcontroller type for ItsyBitsy M4 Express (#42)<commit_after>{
  "build": {
    "core": "adafruit",
    "cpu": "cortex-m4",
    "extra_flags": [
      "-DARDUINO_ARCH_SAMD",
      "-DARDUINO_ITSYBITSY_M4",
      "-DADAFRUIT_ITSYBITSY_M4_EXPRESS",
      "-D__SAMD51G19A__",
      "-D__SAMD51__",
      "-D__FPU_PRESENT",
      "-DARM_MATH_CM4",
      "-DCRYSTALLESS"
    ],
    "f_cpu": "120000000L",
    "hwids": [
      [
        "0x239A",
        "0x802B"
      ],
      [
        "0x239A",
        "0x002B"
      ]
    ],
    "ldscript": "flash_with_bootloader.ld",
    "mcu": "samd51j19a",
    "system": "samd",
    "usb_product": "Adafruit ItsyBitsy M4",
    "variant": "itsybitsy_m4"
  },
  "debug": {
    "jlink_device": "ATSAMD51G19",
    "openocd_chipname": "at91samd51g19",
    "svd_path": "ATSAMD51G19A.svd"
  },
  "frameworks": [
    "arduino"
  ],
  "name": "Adafruit ItsyBitsy M4 (SAMD51)",
  "upload": {
    "disable_flushing": true,
    "maximum_ram_size": 196608,
    "maximum_size": 507904,
    "native_usb": true,
    "protocol": "sam-ba",
    "protocols": [
      "sam-ba",
      "blackmagic",
      "jlink",
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