This and the following subsections describe how to use and configure the applications. The process is illustrated in the following figure.
Figure 1. Overview of the Project
Flow
The main steps are:
- Create an application for the target AVR. If required, create an EEPROM layout in a separate file.
- Create a configuration file with project dependent information. The application called GenTemp can be used for creating a file frame.
- Run the application called Create. This will create the header file, key file, and the encrypted file.
- Use Atmel Studio 7 or later, configure and build the bootloader for the target AVR
- Download bootloader to target AVR and set lock and fuse bits
- Now the encrypted firmware may be downloaded to the AVR at any time