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6 Verification Schemes
This section discusses various methods to verify the application provided to the users by the 8-Bit MDFU Client library.

1 MCC Melody 8-Bit MDFU Client Library
2 User Interface
3 Firmware Image Builder (pyfwimagebuilder)
4 Microchip Device Firmware Update (pymdfu)
5 Use Case Example
6 Verification Schemes
This section discusses various methods to verify the application provided to the users by the 8-Bit MDFU Client library.
- 6.1 Check Reset Vector
  
  The bootloader will check for a non-void value at a predefined location within the Reset Vector of the end application.
- 6.2 Check Status Byte
  
  The bootloader and the host application will communicate program status through a Reset Byte value, also known as a State Flag or Status Byte.
- 6.3 Checksum
- 6.4 Cyclic Redundancy Check
Microchip Information

6 Verification Schemes

This section discusses various methods to verify the application provided to the users by the 8-Bit MDFU Client library.

Verification Overview

Before the bootloader launches an application, it will verify that there is a valid application image loaded into memory. This verification step can take many different forms. This section discusses each of the verification methods implemented in this 8-Bit MDFU Client library, how they work and some of the engineering considerations when selecting one.

Verification Methods

Check Reset Vector
Check Status Byte
Checksum
Cyclic Redundancy Check