[Security]porting security to APP but loop in (FALSE == Mu_Ip_IsResponseReady)

[faiz_gear]

We are using S32K312,and the HSE function is running successful in FBL.

Now we want to porting the security for FBL to APP,but we find is loop in

while ((FALSE == Mu_Ip_IsResponseReady(Hse_Ip_apMuBase[u8MuInstance], u8MuChannel)) && (u32ElapsedTicks < u32TimeoutTicks))

in Hse_Ip_ServiceRequest when we call the Hse service.

But it is all right in FBL.I want to konw what may causes the HSE to be unresponsive?

[David2024]

Hi:

    I met the same problem as you, if you have solved this problem, can you share the solution with  me, thanks very much!

[WeoWang · Accepted solution]

Hi David,

If you call the HSE service asynchronously, and you have the debugger attached to the MCU, you can try to remove the debugger and add a message print(via CAN or UART) or toggle an LED after this function

“while ((FALSE == Mu_Ip_IsResponseReady(Hse_Ip_apMuBase[u8MuInstance], u8MuChannel)) && (u32ElapsedTicks < u32TimeoutTicks))”

We found that sometimes the interrupts could not be entered when the debugger was attached.

You can also check whether the related interrupts are enabled or not:

Best Regards

WW

[faiz_gear]

please check the address of data that you want to send to HSE,It should be in sram data or dtcm

[FHY]

Hi faiz_gear，
I encountered the same problem. Have you found a solution. Is it necessary to perform some configuration operations before using HSE capabilities? Could you please share the specific solution? Thank you very much.