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General • Re: disabling TrustZone in RP2350 ?

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Is this the reason, in RP2350 datasheet 5.9.5.1. Minimum Arm IMAGE_DEF section, even though it says "Assuming CRIT1.SECURE_BOOT_ENABLE is clear", it uses PICOBIN_IMAGE_TYPE_EXE_SECURITY_AS_BITS(S) thus EXE_SECURITY_S (vs. NS). Would this also work with EXE_SECURITY_NS ? I expect it would work and switch the core to non-secure state (thus this flag is the security attribute of the memory of this block?) but not sure. Then, what does EXE_SECURITY_UNSPECIFIED mean ?

Does the boot ROM implicitly configures SAU based on the information in metadata blocks ?

Statistics: Posted by metebalci — Tue Sep 03, 2024 9:03 pm



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