nRF9151 - New DECT firmware matching DECT Hello sample for new version of SDK

[Yosh]

Hello everyone!

I have a question regarding nRF9151 and the new DECT Hello sample. I have installed the newest version of the SDK, a preview of v3.3.0, built and flashed it. This operation is successful, but as soon as the program starts the modem crashes (output from serial below). I was wondering, is this the cause of an outdated firmware (right now I DECT firmware version 1.1.0) or something else I am not seeing?

[00:00:00.480,041] <err> hello_dect: Modem fault: reason=4095, program_counter=0x0

[00:00:00.480,133] <err> os: r0/a1:  0x00000004  r1/a2:  0x00000028  r2/a3:  0x00000004
[00:00:00.480,133] <err> os: r3/a4:  0x00000004 r12/ip:  0x20015fcc r14/lr:  0x00008b0f
[00:00:00.480,163] <err> os:  xpsr:  0x0100003a
[00:00:00.480,163] <err> os: Faulting instruction address (r15/pc): 0x0002bacc
[00:00:00.480,224] <err> os: >>> ZEPHYR FATAL ERROR 4: Kernel panic on CPU 0
[00:00:00.480,224] <err> os: Fault during interrupt handling

[00:00:00.480,316] <err> os: Current thread: 0x2000f198 (idle)
[00:00:00.555,969] <err> os: Halting system

Apologize if this has been answered before.

Thanks, Gustav

[Hakon]

Hello,

I was wondering, is this the cause of an outdated firmware (right now I DECT firmware version 1.1.0) or something else I am not seeing?

Yes, you probably need the v2.x of the dect modem firmware. The 1.1.0 version supports the PHY layer of dect, but not the MAC layer which is used in the hello dect sample (not the PHY sample).