esp_image_get_metadata() function

Partition to load the app from.

Pointer to the image metadata structure which is be filled in by this function. Fields will all be initialised by this function.

Verify an app image. If encryption is enabled, data will be transparently decrypted. Image validation checks: - Magic byte. - Partition smaller than 16MB. - All segments & image fit in partition. - 8 bit image checksum is valid. - SHA-256 of image is valid (if image has this appended). - (Signature) if signature verification is enabled.

Update the partition and reboot_counter in rtc_retain_mem. This function saves the partition of application for fast booting from the deep sleep. An algorithm uses this partition to avoid reading the otadata and does not validate an image. Note: This function operates the RTC FAST memory which available only for PRO_CPU. Make sure that this function is used only PRO_CPU.

Read ota_info partition and fill array from two otadata structures.

Load an app image without verification (available only in space of bootloader). If encryption is enabled, data will be transparently decrypted.

Verify and load an app image (available only in space of bootloader). If encryption is enabled, data will be transparently decrypted. Image validation checks: - Magic byte. - Partition smaller than 16MB. - All segments & image fit in partition. - 8 bit image checksum is valid. - SHA-256 of image is valid (if image has this appended). - (Signature) if signature verification is enabled.