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GTZC and PKA privileged config

hakeila
Associate III

‎2025-01-06 05:02 PM

Hi,

 

I have enabled the HASH, RNG, and PKA. I also enabled the Global Trust Zone Controller and configured the PKA as privilege access. However, the generated code from STM32CubeMX does produce an error due to undefined 

GTZC_CFGR3_PKA_Pos which is missing from stm32h523xx.h

 

Is that an error? 

 

I have to mention that when I first created the project, I haven't check Trust Zone option under the project. But I later enabled the GTZC.


Kind Regards,

Hani

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5 REPLIES 5
STea
ST Employee

‎2025-01-07 08:46 AM

Hello @hakeila ,

Could you share the MX version as well as the ioc file you used to reproduce the issue.
as far as I recall there was an issue with MX missing some source files, but it was resolved.
and also, to make this statement clearer:

"I have to mention that when I first created the project, I haven't check Trust Zone option under the project. But I later enabled the GTZC."
is this meaning that you didn't select the option TrustZone enabled in CubeMX ?
Regards 

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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Jocelyn RICARD
ST Employee
In response to STea

‎2025-01-07 08:58 AM

Hello @hakeila ,

The STM32H523 does not support PKA, only STM32H533.

This is reason why this is not defined

Best regards

Jocelyn

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hakeila
Associate III
In response to Jocelyn RICARD

‎2025-01-07 05:15 PM

Hi @Jocelyn RICARD 

 

So there is no PKA peripheral in STM32H523? If this is the case, this means that there is an error in CubeMX as I can see PKA module available and I can select it for my CubeMX project of STM32H523. And There are generated PKA source files generated together with HAL drivers.

Are you sure? PKA is mentioned to be available under STM32H523xx datasheet as shown in the snapshot I attached from the datasheet page.

Kind Regards,

Hani

 

 

 

Preview file
60 KB
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hakeila
Associate III
In response to STea

‎2025-01-07 05:15 PM

Hi @STea ,

 

I will send you my .ioc file in private message

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Jocelyn RICARD
ST Employee
In response to hakeila

‎2025-01-07 11:24 PM

Hello @hakeila ,

Sorry, my bad. The STM32H523 is the non crypto version of STM32H533. But it still contains a version of PKA, limited to ECDSA, that is mostly used to secure boot.

I suspect an issue in the stm32h523.h where PKA is not referenced in GTZC related registers, possibly because this addition of such limited PKA in a "non crypto" device is something new...

Best regards

Jocelyn

 

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