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AM6442: Secure boot and Ethernet Interface questions

Part Number: AM6442

Tool/software:

Dear experts,

I would like to ask a couple of questions regarding secure boot: 

1.) Are there documents that explain the process of key burning ?

2.) How can we integrate the tools (responsible for burning MPK and BMPKH)  in our manufacturing lines.

3.) In case of MPK compromised, how does the devices switch to BMPKH for devices recovery? Is there any way to reprogram a new MPK key? 

4.) Is there a separate tool for configuring the this information? 

5.) Is there a way to debug the process to see is something goes wrong during development phase? If so, is there a manual to explain that process.

Regards,

Alex