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¶

Kconfig definition¶

At <Zephyr>/subsys/dfu/Kconfig:52

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:34 → <Zephyr>/subsys/Kconfig:44

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.)