[NRF5340] HardFault when accessing application core memory from network core

[alecamar]

Hello, we are using the NRF5340 with the new Zephyr SDK in our design and we are having issues reading the application core memory from the network core.
A read to any address in the application core RAM always results in a HardFault:

crashVal = *(uint32_t*)0x20010000;

CFSR after the HardFault:  0x00008200

Even though it shouldn't be necessary, we are setting NRF_DCNF->EXTRAM->PROTECT to 0 in the app core before starting the network core.

Is there any other register that needs to be set to allow this type of memory access from the network core?

Thank you

[Priyanka]

Hello,
I am sorry, but we are short staffed this week due to Public Holidays in Norway. We will be back on Monday 22nd and hope to be able to answer all incoming requests within a couple of days, depending on the backlog. I am sorry for the inconvenience.

Best regards,
Priyanka

[Priyanka]

Hi,

I am looking into this. I will discuss this with experts and will get back to you as soon as possible.

-Priyanka