USB Drive Mode
Plug in, drag files
Page 36 turns the box into a USB mass-storage device: connect the data cable and the computer shows a drive whose contents are the SD card β drag files, create folders, drop a firmware image in, all without removing the card or finding a reader.
Sectors are accessed directly: no unmount, no filesystem layer, straight sector reads and writes to the card, so throughput is close to the card's native bandwidth. The switch briefly disconnects and re-enumerates USB, so the computer sees the device blink β that is expected.
On-screen interface
A recreation of this page on the 2.41-inch AMOLED display (600 Γ 450). Actual interaction and layout follow the latest firmware.
Key capabilities
No card removal
The device is the drive; the card stays in.
Folders work
Files, directories and logs are all readable and writable.
Raw sectors
No filesystem translation, so speed tracks the card.
Instant switch
Change page and the drive appears on the computer.
Technical specs
Typical scenarios
Copy firmware
Drop an image onto the SD card, then use page 30 to flash it locally.
Collect logs
Drag the log files back to the computer after a test run.
Related commands
page 36 Open USB drive mode ums USB state and capacity ums on | off Enable or leave drive mode ums status Whether the host has mounted it ums read 63 Read a sector (sector 0 is a bare MBR of zeros β normal)
- FAT32 only; exFAT cards have to be formatted on the device first.
- Eject safely on the computer before unplugging, or data may be lost.
- The touchscreen does not respond in drive mode β reboot or power-cycle to leave it.