How to write values ​​from secure code to non-secure memory.

For example,

Save the value x held by the secure code in the non-secure memory.

next,

Access the non-secure memory where the value x will be stored from the non-secure code.

I want to do something like this, but after writing a value to non-secure memory with secure code, the value is not retained even if the memory is referenced from non-secure code.

Is there any way?

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