Hello.
We are developing a project based on the nRF54L15 SoC, utilizing MCUboot, image compression, and TF-M (Trusted Firmware-M).
As part of our upgrade from NCS v3.2.4 to v3.3.1, we are currently working on migrating our flash partitioning approach from Partition Manager to Devicetree.
We are aware of the known issue NCSDK-38697, which is highly critical for us. However, there seems to be a discrepancy between the description of NCSDK-38697 and our actual test results.
NCSDK-38697: Updating compressed DFU for an old project does not work with the new partitioning approach with DTS
nrfconnectdocs.nordicsemi.com/.../known_issues.html
Here is what we observed during our DFU testing:
- PM to DTS: When we applied a Devicetree-configured firmware update to a device currently running Partition Manager-configured firmware, the DFU update succeeded.
- DTS to DTS: Conversely, when we applied a Devicetree-configured firmware update to a device already running Devicetree-configured firmware, the DFU update failed.
Is this behavior expected or somehow related to the phenomenon described in NCSDK-38697?
Additionally, could you please provide a rough timeline on when NCSDK-38697 is expected to be fixed?
Since the migration guide mentions that the Partition Manager will be deprecated and removed in the future, we would like to complete our transition to Devicetree as early as possible.
Best regards,
a.da