CONFIG_IMG_ERASE_PROGRESSIVELY

Erase flash progressively when receiving new firmware

Type: bool

Help

If enabled, flash is erased as necessary when receiving new firmware,
instead of erasing the whole image slot at once. This is necessary
on some hardware that has long erase times, to prevent long wait
times at the beginning of the DFU process.

Direct dependencies

MCUBOOT_IMG_MANAGER && IMG_MANAGER

(Includes any dependencies from ifs and menus.)

Defaults

No defaults. Implicitly defaults to n.

Symbols selected by this symbol

• STREAM_FLASH_ERASE

Symbols that select this symbol

• LWM2M_CLIENT_UTILS_FIRMWARE_UPDATE_OBJ_SUPPORT

• HAWKBIT

• USB_DFU_CLASS

Kconfig definition

At <Zephyr>/subsys/dfu/Kconfig:63

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:44 → <Zephyr>/subsys/Kconfig:51

Menu path: (Top) → Sub Systems and OS Services → DFU image manager

config IMG_ERASE_PROGRESSIVELY
    bool "Erase flash progressively when receiving new firmware"
    select STREAM_FLASH_ERASE
    depends on MCUBOOT_IMG_MANAGER && IMG_MANAGER
    help
      If enabled, flash is erased as necessary when receiving new firmware,
      instead of erasing the whole image slot at once. This is necessary
      on some hardware that has long erase times, to prevent long wait
      times at the beginning of the DFU process.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)