Help with reducing RAM Usage and implementing TLS Co-Processor on nRF9161

RE: Help with reducing RAM Usage and implementing TLS Co-Processor on nRF9161

dejans — Fri, 27 Sep 2024 12:30:27 GMT

Hi,

Kenneth is currently out of the office.

You can look at Kconfig.tfm.partitions. Specifically, for reducing RAM usage these lines might be relevant - TFM_PROFILE_TYPE (consider using TFM_PROFILE_TYPE_NOT_SET), TFM_MODEL (SFN is smaller than IPC, but with weaker security due to less separation in secure image) and TFM_LOG_LEVEL_SILENCE.

Best regards,
Dejan

RE: Help with reducing RAM Usage and implementing TLS Co-Processor on nRF9161

Henrico Brom — Thu, 26 Sep 2024 11:48:30 GMT

Hi Kenneth,

How can I check if this is enabled?
And how much RAM saving do you expect with this?

We are looking for a solutions that will reduce the RAM usage with at least 50kB so we have some room for adding features in the future.

RE: Help with reducing RAM Usage and implementing TLS Co-Processor on nRF9161

Kenneth — Thu, 26 Sep 2024 11:21:33 GMT

Can you check if PSA attestation service is enabled in your build? Disabling this should remove some RAM requirements

Kenneth

RE: Help with reducing RAM Usage and implementing TLS Co-Processor on nRF9161

Kenneth — Thu, 26 Sep 2024 06:51:19 GMT

Hello,

Let me ask internally and get back to you.

Kenneth