s32k3 recover hse

[youxi]

Hello:

I seem to have made some irregularities that caused the hse to shut down. I wrote this register once and then the hse fails.I wonder how to restore the hse now

[VaneB]

Hi @youxi 

Could you provide me with the value you have in this register? 

B.R.

VaneB

[youxi]

That's the register. I did not write in it successfully. Now if I read out the value of this register, it is still 0x40000000.

[VaneB]

Hi @youxi 

Could you explain more about the behavior of the HSE and about how it does not work?

[youxi]

Hi @VaneB 

I send a request to HSE for any service and cannot successfully get a response. But my HSE firmware has been successfully installed and has completed encryption and decryption before.

[youxi]

The value obtained here is 0.The same goes for using the right project

[VaneB]

Hi @youxi 

As the HSEResponse is equal to no response is caused because HSE is not correctly installed.

To ensure that this is not your case, please verify if the HSE_FW Version (HSE_GetVersion_Example() matches the one installed, or check if the HSE FW usage flag is already enabled. These validations are made in the HSE demo app. 

[youxi]

Hi @VaneB 

Before this, HSE firmware was successfully installed, and can complete functions such as encryption and decryption. now. When I read the register, I read out the value. The value at position 0 is 0. The surface HSE is erased by SBAF

[VaneB]

Hi @youxi 

By this you mean the definition of tr variable?

Could you provide more information?

[youxi]

Wait for a timeout, and you get this value