Module layout 

The fixed geometry of an MT19xx flash image.

Every MT1959 and MT1939 image is a flat 2 MiB SPI image with load address equal to file offset. The ranges below hold across the OEM corpus of both generations (LG, HP and ASUS builds).

Structs

Range

A named byte range of the flash image.

Constants

BANNER

The ASCII boot banner, e.g. MT1959 Boot BU5.

BD_REVOCATION

The BD host revocation list.

BOOT_AREA

The boot area: the 4 KiB flash sector holding BOOT_PAGE. The drive serves it remapped, so read-back verification skips it.

BOOT_MIRROR

The page a drive read returns in place of BOOT_PAGE.

BOOT_PAGE

The boot page. Flash stores it in a form that never reads back: READ BUFFER returns the page at BOOT_MIRROR here instead.

CALIBRATION

The per-unit calibration block.

CMAC_TABLE

The AES-CMAC integrity table (16 entries of 28 bytes).

DESCRIPTOR

The identity descriptor: vendor, model, revision, SKU and the MTEKMT19xx tag at +0x34, mirroring the drive’s INQUIRY.

DRIVE_WRITTEN

Regions the drive rewrites at runtime and an update never overwrites. A drive read differs from the flashed image here and at BOOT_PAGE only.

IMAGE_SIZE

Size of a complete firmware image (2 MiB).

SETTINGS

The drive’s settings page.

UHD_REVOCATION

The UHD host revocation list. Erased on builds without UHD support.

Functions

is_erased

true when every byte of bytes is erased flash (0xFF).