GET /api/debug/external-storage/

External storage information: installed chip, capacity, and complete region map.

Auth: Bearer (powerUser).

---

Response 200

{
  "jedecId": "EF4015",
  "chipType": "W25Q16",
  "sizeBytes": 2097152,
  "sectorSize": 4096,
  "regions": {
    "logger": {
      "startAddress": "0x000000",
      "sizeBytes": 262144,
      "usedEntries": 124,
      "maxEntries": 2048
    },
    "recorder": {
      "startAddress": "0x040000",
      "sizeBytes": 524288,
      "usedEntries": 8530,
      "maxEntries": 16384
    },
    "ota": {
      "startAddress": "0x0C0000",
      "sizeBytes": 1048576,
      "imagePresent": false,
      "imageSize": 0
    },
    "reserved": {
      "startAddress": "0x1C0000",
      "sizeBytes": 262144
    }
  }
}

Response fields

Field	Type	Description
jedecId	string	Six-character hex string (manufacturer + type + capacity)
chipType	string	Human-readable chip name
sizeBytes	number	Total external storage capacity (bytes)
sectorSize	number	Sector size (bytes)
regions.logger.startAddress	string	Start address (hex)
regions.logger.sizeBytes	number	Region size (bytes)
regions.logger.usedEntries	number	Number of used entries
regions.logger.maxEntries	number	Maximum number of entries
regions.recorder.startAddress	string	Start address (hex)
regions.recorder.sizeBytes	number	Region size (bytes)
regions.recorder.usedEntries	number	Number of used entries
regions.recorder.maxEntries	number	Maximum number of entries
regions.ota.startAddress	string	Start address (hex)
regions.ota.sizeBytes	number	OTA slot size (bytes)
regions.ota.imagePresent	boolean	Whether an image with a valid header is present
regions.ota.imageSize	number	Payload size from the header (0 if absent)
regions.reserved.startAddress	string	Start address of the reserved region (hex)
regions.reserved.sizeBytes	number	Reserved region size (bytes)