IWR1443: Reading out MSS image CRC

Hi Honke, 

I am looking into this matter and will get back to you as soon as I can.

Regards,

Brennan

Honke, thank you for your patience.

The bootloader doesn't save the CRC in any location, and will read it from the SFLASH and use it for further operations.  The CRC is stored in TCMB during bootloading, but is cleared just before control hand-off to the application.

Regards,

Brennan

Brennan,

Thanks for your quick and clear reply, which unfortunately means I need to find some other way to verify that the application is authentic.

Another alternative is to make a calculation of the software's checksum during the software linkage and add the calculated checksum to the generated application software binary, which then makes the checksum available to the application. It is a feature that IAR has in their linkers and we are using frequently in our other products. Can you tell if CCS has a similar feature? I have read about CRC generation in "ARM Assembly Language Tools - User Guide", under "Linker-Generated CRC Tables", but it feels quite complex, since the tool can only do CRC calculation on single object files. Is there no way to calculate the checksum on the complete software and add to the generated binary?

BR,

Honke