Series 2 and Series 3 Secure Boot with RTSL#

NOTE: This section replaces AN1218: Series 2 and Series 3 Secure Boot with RTSL. Further updates to this application note will be provided here.

This application note describes the design of Secure Boot with RTSL (Root of Trust and Secure Loader) on Series 2 and Series 3 devices. It also provides examples of how to implement the Secure Boot process.

For more information on using the Gecko Bootloader with Series 2 and Series 3 devices, see the following:

• Bootloader Fundamentals

• UG266: Silicon Labs Gecko Bootloader User’s Guide for GSDK 3.2 and Lower

• Silicon Labs Gecko Bootloader User's Guide for GSDK 4.0 and Higher

• Silicon Labs Gecko Bootloader User’s Guide for Series 3 and Higher

Key Points#

• Compares the Secure Boot process in Series 1, Series 2, and Series 3 devices

• Describes the Series 2 and Series 3 Secure Boot with RTSL components and process

• Provides examples of configuring Series 2 and Series 3 devices for the Secure Boot process

• Recovers secure boot failure devices