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Secure Firmware Upgrade on PIC32CM LS60 MCU
Introduction
1 Hardware and Software Requirements
1.1 PIC32CM LS60 Curiosity Pro Evaluation Kit
1.2 MPLAB® X Integrated Development Environment and MPLAB XC32 Compilers
1.3 MPLAB Harmony v3
1.4 Python
2 Security
2.1 Hash Function
2.2 Digital Signature
2.3 Encryption and Decryption
2.4 Secure Firmware Upgrade Implementation on PIC32CM LS60 MCU
3 Design
3.1 UART Firmware Upgrade Protocol
3.2 Secure Firmware Upgrade Protocol
3.3 Memory Layout
3.4 Execution Flow
4 Building and Running the Application
4.1 Key Provision on the Host and Client Boards
4.2 Running the Client Bootloader Application
4.3 Running the Host Application
5 Observe the Output on the Serial Console
5.1 Bootloader Trigger Mechanism on the Client
6 Updating the New Target Firmware in the Host Application
6.1 Updating the Target Firmware
6.2 Loading the New Target Firmware into the Host Application
7 Conclusion
8 Glossary
9 References
10 Revision History
Microchip Information
Trademarks
Legal Notice
Microchip Devices Code Protection Feature