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Software level TrustZone for Cortex-M3/M4/M7 devices

Balajikrishnan.G.S

Hello Team,

I'm working on a project using ARM Cortex-M3/M4/M7 development board where i need to configure the Trusted Execution Environment(TEE), but i could not able to do this.After that, i found that these architectures are not having (ARM TrustZone) technology.

However, I worked on ARM Cortex-33 based development board where i could configure the trust zone using various configuration tools.
My question is how to add software level Trusted Execution Environment(TEE) trust zone for ARM Cortex-M3/M4/M7 processor?
Is there any possible open source tool or software library available to do software level trustzone configuration for Cortex-M3/M4/M7 development board ?

Kindly let me know if anything available?

Thanks & Regards,

Balajikrishnan.G.S

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