STM32F423ZHT6 is Support for Secure Boot?

[Marudhupandian]

Hi, good morning, sir/madam.

We are using a STM32F423ZHT6 MCU for Smart Lock in our project.

We have some security purposes for our lock and need security boot options.

So please clarify this MCU has secure boot options. If this MCU has secure boot options, please explain how to use them.

[STTwo-32]

Hello @Marudhupandian 

I think @Jocelyn RICARD answered a simular question in this post.

Best Regards.

STTwo-32 

[CMYL]

Hi @Marudhupandian,

>> Q1: So please clarify this MCU has secure boot options.

Yes this MCU has secure boot options. The main boot options used in the STM32F4 for secure boot and secure firmware update are the following:

• MPU privilege access, flash write protection options (WRP), debug access port en/dis, 3 read-out protection (RDP) levels and Tampering. 

>> Q2: If this MCU has secure boot options, please explain how to use them.

The X-CUBE-SBSFU package provides 3 examples of SBSFU applications for STM32F413ZH. You are using STM32F423ZHT6 which has exactly the same  features as STM32F13 in addition to a hardware crypto engine.

For detailed information, the UM2262 User manual gives an overview of X-CUBE-SBSFU package with differences between examples running on  STM32L4 series, STM32F4 series, STM32F7 series, STM32G0 series, STM32G4 series, STM32H7 series, STM32L0 series, STM32L1 series, and STM32WB series.

The AN5056 gives the Integration guide and how user can customize the SBSFU implementation.

Best Regards

[Marudhupandian]

Thank you for your valuable response...