Hi,
We are working on nrf5340 board with NS and TF-M setup and we have SDK v2.7.0
We need to have a flash partition to store the some secure data may be a size of 4KB inside the TF-M.
Please help us or direct us to any reference.
Hi,
We are working on nrf5340 board with NS and TF-M setup and we have SDK v2.7.0
We need to have a flash partition to store the some secure data may be a size of 4KB inside the TF-M.
Please help us or direct us to any reference.
Hi, any one please guide us through the setup please.
I see they have an example psa_protected_storage. If I set any partition size to 1KB the example does not work, it just goes into arch_system_halt().
How can I modify the partition size?
Hi,
You seem to have found an example that provides what you are looking for:
Jithin A said:example psa_protected_storage.
What exactly did you add here?
Jithin A said:If I set any partition size to 1KB the example does not work, it just goes into arch_system_halt().
And what is the assert output?
I suspect that the data that you added is stacked memory. If yes, then try to adjust your CONFIG_MAIN_STACK_SIZE.
If you want to store larger than 2k objects, you should adjust the CONFIG_TFM_PS_MAX_ASSET_SIZE. This can max. be 4020 due to overhead, and aligning to a flash page.
Kind regards,
Håkon
Hi Håkon Alseth,
Thank you for the response, please see below comments.
What exactly did you add here?
--> Nothing, plain example as is.
And what is the assert output?
--> Reason holds 2
I suspect that the data that you added is stacked memory. If yes, then try to adjust your CONFIG_MAIN_STACK_SIZE.
--> I don't think so, the data is a string with only 20-30 chars defined global which I believe is not stacked.
I just adjusted the partition size to be 1000 instead and nothing else changed.
If you want to store larger than 2k objects, you should adjust the CONFIG_TFM_PS_MAX_ASSET_SIZE. This can max. be 4020 due to overhead, and aligning to a flash page.
--> Yet the same result. For reference I have attached the logs screenshot.
You can see it's not able execute the application.
Please let me know if my setup is wrong or missing something.
Thank you.
Hi,
Jithin A said:I just adjusted the partition size to be 1000 instead and nothing else changed.
Can you share your changes?
Kind regards,
Håkon
Hi,
PFA for the file you requested.
I have added a macro: SIZE_OF_TEST_STRING_1 in which I am modifying the partition size when setting.
Please correct me if my understanding is wrong.
Thank you.