Hello NXP team:
I am developing secure boot using HSE on S32K324.
I have installed the HSE firmware(A/B swap) on the chip and HSE module is working.(ex: can read the HSE version by service)
I wanted to familiarize how to use the HSE module, so I downloaded the sample code (S32K3XX_demo_app) from the official website and execute it.
But now I have a problem, and I describe my test steps:
1. Run the sample code(S32K3XX_demo_app), and the program stays at line 155.
2. I set the variable gRunExampleTest to APP_SECURE_BOOT_CONFIGURED in the Expressions window, and the program will enter line 241.
3. Enter the function SecureBootService(),
3-1：execute HSE_EraseKeys() return HSE_SRV_RSP_OK →
FormatKeyCatalog() return HSE_SRV_RSP_OK →
ImportSymmetricKeys() return HSE_SRV_RSP_OK
3-2：execute SecureBootConfiguration() → ConfigureBasicSecureBoot() →
Check_DebugKey_status() return HSE_SRV_RSP_NOT_ALLOWED
My qusetion: How can I make Check_DebugKey_status() return HSE_SRV_RSP_OK?
The question has troubled me for a long time.
I hope to get a reply as soon as possible.
Thanks.
Hi @james131618
please take a look at the readme file:
c:\NXP\HSE_DEMOAPP_S32K3XX_0_2_6_0\HSE_DEMOAPP_S32K3XX_0_2_6_0_ReadMe.pdf
Section 4.2 says that Trace32 Lauterbach debugger is necessary to run the demo.
You can use user menu in the Trace32:
This demo app is not supposed to be used without Trace32. If you have Trace32, follow all the steps described in the readme file.
If you don't have trace32, take a look at this set of examples:
https://www.nxp.com/webapp/Download?colCode=S32K3_HSE_DemoExamples
Also if you are interested in Secure Boot, we provide Secure Boot application note including demo projects which explains all the steps in detail. It can be downloaded from:
Application note can be found here:
Documentation -> Secure Files -> Secure Boot Application note v0.1.1.0 (AN744511)
Associated demo project can be downloaded here:
Design Resources -> Software -> Secure Files -> SecureBootAppNoteDemo (SW745310)
Regards,
Lukas
