S32K312 gets random numbers(RNG)

[WXM]

I want to use S32K312 to get a random number at any time. It's better to do a demonstration. thank you

[lukaszadrapa · Accepted solution]

Hi @WXM 

First, it is necessary to install HSE firmware. It is one-time operation.

You can download HSE FW and HSE demo app from S32K3 Standard Software package:

https://www.nxp.com/webapp/swlicensing/sso/downloadSoftware.sp?catid=SW32K3-STDSW-D

HSE FW – contains the HSE Firmware

HSE demo app – shows how install, update and use HSE firmware

Attached is very simple project – code is reused from HSE demo app.

Notice that it is necessary to keep the data cache disabled (this is the case of this example) or the descriptor which is being sent to HSE via Message Unit and also area for random number should be in non-cacheable region.

Regards,

Lukas

[Cppppy]

Hi @lukaszadrapa 

Do you have a random number generation demo for the S32K3XX that conforms to the autosar specification?

[WXM]

Dear lukaszadrapa:
This DEMO doesn't work. It's stuck in the "HSE_MU_IsResponseReady" function. What do I need to configure?

luck