Need Next Steps After HSE Firmware Installation + Reference Manual (S32K344)

Sanjana_k — Mon, 17 Nov 2025 15:03:33 GMT

#Hello NXP team

I am using S32K344 MCU with the S32K3X4EVB-T172 board.
I have completed the HSE firmware installation and firmware update successfully.

I want to know:

What are the next steps after installing and updating the HSE firmware?
What should I do next in the HSE workflow (Key installation? Secure Boot setup?)
Can I get the official HSE Reference Manual or any detailed document to follow?

Thank you.

Re: Need Next Steps After HSE Firmware Installation + Reference Manual (S32K344)

lukaszadrapa — Wed, 19 Nov 2025 13:50:50 GMT

Hi @Sanjana_k

Once HSE firmware is installed, you can start to develop your application and you can start to use HSE services.
If you need to use HSE services which requires keys, then yes, you should start with importing of keys.
Configuration of secure boot is usually the last part of the development when you need to turn on the protection of your application.

HSE Firmware Reference Manual can be downloaded from S32K3 page, section Documentation -> Secure Files:
https://www.nxp.com/products/S32K3#documentation
Latest version is 2.6 and it covers all S32K3 devices. You must be logged in to see the Secure Files. If you can’t see the manual, it may be necessary to request it:
https://www.nxp.com/support/support/secure-access-rights:SEC-ACCESS

Next important document is HSE Service API Reference Manual. To get the document, you need to download HSE FW package and install it. It can be found in S32K3 Standard Software:
https://www.nxp.com/webapp/swlicensing/sso/downloadSoftware.sp?catid=SW32K3-STDSW-D
Open “Automotive SW - S32K3 - HSE Firmware” and download latest version for your derivative.
Install the SW package on your computer and then you will find the document at path like this:
c:\NXP\HSE_FW_S32K344_0_2_55_0\docs\S32K3X4_HSE_Service_API_Reference_Manual.pdf

Audio/video presentations can be found in Training section:
https://www.nxp.com/products/S32K3#training

You can use “security” keyword for filtering.

Regards,
Lukas

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Need Next Steps After HSE Firmware Installation + Reference Manual (S32K344)

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