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What should I set SEC_CSF_HEADER Header_Version to?

Question asked by rshipman on Jan 10, 2020
Latest reply on Jan 14, 2020 by Kerry Zhou

In the release package for the RT1020, in the folder:

 

Flashloader_RT1020_1.0_GA/Tools/bd_file/imx10xx

 

there are various .bd files.

 

Some of these are for creating a bootable image that is either unsigned, signed or encrypted.

 

In the signed and encrypted versions there is a section called:

 

section (SEC_CSF_HEADER;

 

In it is the variable Header_Version, which is set to 4.2 (signed files) or 4.3 (encrypted files):

 

Header_Version="4.2",

 

or

 

Header_Version="4.3",

 

1. Why are they different?

2. Where do we get this version from?

3. Or what should we be setting to?

4. Is there a document that describes the difference between 4.2 and 4.3 etc?

 

Many thanks.

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