s32k3 recover hse

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s32k3 recover hse

1,094 Views
youxi
Contributor IV

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

youxi_0-1690193861637.png

 

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9 Replies

1,081 Views
VaneB
NXP TechSupport
NXP TechSupport

Hi @youxi 

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

 

B.R.

VaneB

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1,040 Views
youxi
Contributor IV

youxi_0-1690251116327.png

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.

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VaneB
NXP TechSupport
NXP TechSupport

Hi @youxi 

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

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1,008 Views
youxi
Contributor IV

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_0-1690335178984.png

 

987 Views
youxi
Contributor IV

youxi_0-1690370282963.png

youxi_1-1690370293192.png

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

 

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949 Views
VaneB
NXP TechSupport
NXP TechSupport

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. 

 

 

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926 Views
youxi
Contributor IV

Hi @VaneB 

youxi_0-1690767934004.pngyouxi_1-1690767985648.png

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

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VaneB
NXP TechSupport
NXP TechSupport

Hi @youxi 

By this you mean the definition of tr variable?

Could you provide more information?

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988 Views
youxi
Contributor IV

youxi_0-1690370145255.png

Wait for a timeout, and you get this value

 

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