Creating an absolutely placed, checksum-protected library

Introduction

This Technical Note shows how to create an absolutely placed library (functions and data), that can be integrity-checked using a checksum.

Applies to

This Technical Note applies to IAR Embedded Workbench for ARM. And it focuses on the Cortex-M core.

Background

The idea is that the library can be separately verified and possibly certified once, and later on used by other applications. The library is compiled and linked in a separate Embedded Workbench project.

The output is one ordinary ELF (or HEX) file, and one output file containing the exported symbols. The symbols are exported using the “isymexport“-tool, described in the C/C++ Development Guide, chapter “The IAR Absolute Symbol Exporter - isymexport”.

Solution

See the pdf document Creating an absolutely placed library and the example project Example project (IAR Embedded Workbench for ARM 6.30.7) 2.zip.

All product names are trademarks or registered trademarks of their respective owners.