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5 Verification Schemes
This section discusses various methods to verify the application provided to the users by the bootloader module.

1 MCC Melody Bootloader: 8-bit
2 User Interface
3 Unified Bootloader Host Application (UBHA)
4 Use Case Examples
5 Verification Schemes
This section discusses various methods to verify the application provided to the users by the bootloader module.
- 5.1 Check Reset Vector
  
  The bootloader will check for a non-void value at a predefined location within the end application’s Reset Vector.
- 5.2 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.
- 5.3 Checksum
- 5.4 Cyclic Redundancy Check
6 Bootload Communication Protocol: 8-bit
7 References
Microchip Information

5 Verification Schemes

This section discusses various methods to verify the application provided to the users by the bootloader module.

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 bootloader 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