Firmware Update for nRF9160 (Merged hex)

[TigerD]

Hi,

I have a question for production firmware update using JTAG/SWD for nRF9160 modem:

The Segger generates merged/hex. So the merged hex includes the modem code updated through nRFConnect programmer. Is this correct?

Thank you,

David Zhou

[Sigurd]

Hi,

No, the merged.hex includes the application + spm (+ mcuboot if enabled).

[TigerD]

Hi Sigurd,

So Modem (.zip file) firmware code can only be loaded through nrfConnect/Programmer?

Does the Modem code share the same flash with modem application code (generated with Segger compiler as merged hex)?

Thank you,

David

[Sigurd]

TigerD said:

So Modem (.zip file) firmware code can only be loaded through nrfConnect/Programmer?

Yes, and with pynrfjprog. And Modem FOTA(Firmware Over-The-Air)(e.g. over HTTP) when that is released soon.

TigerD said:

Does the Modem code share the same flash with modem application code (generated with Segger compiler as merged hex)?

No. The modem uses it's own dedicated flash for storing the modem firmware. See the figure at this link.