Stanislav Mlcoch

Security for QD2/4 with NVBACKKEY

Discussion created by Stanislav Mlcoch on Jul 2, 2010
Latest reply on Jul 7, 2010 by ROB LUND

For production I need secure flash. When in CreateImage.exe is set Secure Device then processor is secured but it is not able re-program again with image where is used  EraseModule.? I don´t know why? The CyclonePro stop in security flag.

 

The image is with commands:

 

CM

SS

EM ;Erase Module

PM ;Program

PT ;Trim

VM ;verify

SD ;secure

 

In Metrowerks or in CyclonePro_ProgHcs08.exe is able Erase Module. But why not in Cyclone Image?

 

Next: When I set NVBACKKEY0-7 for key and KEYEN = 1. Where I can set BACKKEY in programmer for reading code? I can secure but never read?  In HC08 was not problem in HCS08 ???

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