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2 User Interface
2.5 Enable Multi-Image

This component allows the user to configure multiple application image partitions.
2.5.2 Enable Backup Image

This component allows the user to configure the image ID for the back-up area.

1 MCC Melody 8-Bit MDFU Client Library
2 User Interface
- 2.1 Communication Protocol
  
  This component is responsible for configuring the communication protocol used for data transfer between the bootloader host and bootloader client.
- 2.2 Memory Verification Selector
  
  This component configures which verification method is used for user application verification.
- 2.3 I/O Pins
  
  These components are used to enable the I/O operations of the bootloader firmware.
- 2.4 Application Start Address
  
  This component allows the user to configure where the memory partition for the application begins. This also means that the memory partition of the bootloader client will end at this address.
- 2.5 Enable Multi-Image
  
  This component allows the user to configure multiple application image partitions.
  - 2.5.1 Staging Image ID
    
    This component allows the user to configure the image ID for the staging area.
  - 2.5.2 Enable Backup Image
    
    This component allows the user to configure the image ID for the back-up area.
    - 2.5.2.1 Backup Image ID
      
      This component allows the user to configure a spare image as a backup image.
  - 2.5.3 Enable Anti-Rollback
    
    This component allows the user to configure the bootloader for anti-rollback protection.
3 MDFU Host (pymdfu)
4 Use Case Examples
5 Verification Schemes
This section discusses various methods to verify the application provided to the users by the 8-Bit MDFU Client library.
6 Assumptions of Use
This section communicates the most important assumptions of use for the 8-Bit MDFU Client and ecosystem.
Microchip Information

2.5.2 Enable Backup Image

This component allows the user to configure the image ID for the back-up area.

Description: The field configures the bootloader to have backup image support. The Backup Image is a special spare image that can be used for emergency application restoration in case of memory corruption or any other errors that result in the execution space image and the staging area image being invalid.

Example: To configure this setting, click the Enable Backup Image toggle button.