Hello,
I am working with the nRF9151 DK and NCS v3.3.0. I am experiencing a critical modem fault at startup.
Problem Summary:
When I start debugging, I immediately get the following output on the serial port. Shortly after the DECT initialization sequence, the modem triggers a fatal crash with reason 0xfff.
When I start debugging, I immediately get the following output on the serial port. Shortly after the DECT initialization sequence, the modem triggers a fatal crash with reason 0xfff.
Observed Serial Logs:
All pins have been configured as non-secure
Booting TF-M v2.2.2**
[Sec Thread] Secure image initializing!
TF-M isolation level is: 0x00000001
TF-M Float ABI: Hard
Lazy stacking enabled
ooting nRF Connect SDK v3.3.0-ba167d9f3db4 ***
*** Using Zephyr OS v4.3.99-fd9204a02d52 ***
Reset reason: PIN reset
mdesh:~$ Modem crash reason: 0xfff (Unknown reason), PC: 0x0
ASSERTION FAIL [0] @ CMAKE_SOURCE_DIR/src/main.c:108
Modem crash detected, halting application execution
[00:00:00.585,266] <err> os: r0/a1: 0x00000004 r1/a2: 0x0000006c r2/a3: 0x00000001
[00:00:00.585,327] <err> os: r3/a4: 0x00000004 r12/ip: 0x00000000 r14/lr: 0x00011121
[00:00:00.585,327] <err> os: xpsr: 0x2100003a
[00:00:00.585,357] <err> os: s[ 0]: 0x000110ed s[ 1]: 0x0004a31b s[ 2]: 0x00000fff s[ 3]: 0x00000000
[00:00:00.585,388] <err> os: s[ 4]: 0x2001b110 s[ 5]: 0x0004a4ed s[ 6]: 0x00000000 s[ 7]: 0x00000000
[00:00:00.585,418] <err> os: s[ 8]: 0x00000000 s[ 9]: 0x0004a093 s[10]: 0x0004a081 s[11]: 0x0004d4bd
[00:00:00.585,418] <err> os: s[12]: 0x2001b220 s[13]: 0x000620ef s[14]: 0x0000002a s[15]: 0x0001be13
[00:00:00.585,449] <err> os: fpscr: 0x00000000
[00:00:00.585,479] <err> os: r4/v1: 0x0006532c r5/v2: 0x00000fff r6/v3: 0x00000000
[00:00:00.585,479] <err> os: r7/v4: 0x00000000 r8/v5: 0x00000000 r9/v6: 0x00000000
[00:00:00.585,571] <err> os: r10/v7: 0x00000000 r11/v8: 0x00000000 psp: 0x20022da8
[00:00:00.585,601] <err> os: EXC_RETURN: 0x0
[00:00:00.585,601] <err> os: Faulting instruction address (r15/pc): 0x00055b80
[00:00:00.585,632] <err> os: >>> ZEPHYR FATAL ERROR 4: Kernel panic on CPU 0
[00:00:00.585,662] <err> os: Fault during interrupt handling
[00:00:00.585,693] <err> os: Current thread: 0x20013088 (idle)
[00:00:00.761,383] <err> os: Halting system
desh:~$
Booting TF-M v2.2.2**
[Sec Thread] Secure image initializing!
TF-M isolation level is: 0x00000001
TF-M Float ABI: Hard
Lazy stacking enabled
ooting nRF Connect SDK v3.3.0-ba167d9f3db4 ***
*** Using Zephyr OS v4.3.99-fd9204a02d52 ***
Reset reason: PIN reset
mdesh:~$ Modem crash reason: 0xfff (Unknown reason), PC: 0x0
ASSERTION FAIL [0] @ CMAKE_SOURCE_DIR/src/main.c:108
Modem crash detected, halting application execution
[00:00:00.585,266] <err> os: r0/a1: 0x00000004 r1/a2: 0x0000006c r2/a3: 0x00000001
[00:00:00.585,327] <err> os: r3/a4: 0x00000004 r12/ip: 0x00000000 r14/lr: 0x00011121
[00:00:00.585,327] <err> os: xpsr: 0x2100003a
[00:00:00.585,357] <err> os: s[ 0]: 0x000110ed s[ 1]: 0x0004a31b s[ 2]: 0x00000fff s[ 3]: 0x00000000
[00:00:00.585,388] <err> os: s[ 4]: 0x2001b110 s[ 5]: 0x0004a4ed s[ 6]: 0x00000000 s[ 7]: 0x00000000
[00:00:00.585,418] <err> os: s[ 8]: 0x00000000 s[ 9]: 0x0004a093 s[10]: 0x0004a081 s[11]: 0x0004d4bd
[00:00:00.585,418] <err> os: s[12]: 0x2001b220 s[13]: 0x000620ef s[14]: 0x0000002a s[15]: 0x0001be13
[00:00:00.585,449] <err> os: fpscr: 0x00000000
[00:00:00.585,479] <err> os: r4/v1: 0x0006532c r5/v2: 0x00000fff r6/v3: 0x00000000
[00:00:00.585,479] <err> os: r7/v4: 0x00000000 r8/v5: 0x00000000 r9/v6: 0x00000000
[00:00:00.585,571] <err> os: r10/v7: 0x00000000 r11/v8: 0x00000000 psp: 0x20022da8
[00:00:00.585,601] <err> os: EXC_RETURN: 0x0
[00:00:00.585,601] <err> os: Faulting instruction address (r15/pc): 0x00055b80
[00:00:00.585,632] <err> os: >>> ZEPHYR FATAL ERROR 4: Kernel panic on CPU 0
[00:00:00.585,662] <err> os: Fault during interrupt handling
[00:00:00.585,693] <err> os: Current thread: 0x20013088 (idle)
[00:00:00.761,383] <err> os: Halting system
desh:~$
Questions & Requests:
- Do I need a specific modem firmware to enable DECT NR+ on the nRF9151? It appears the public v2.0.x cellular firmware does not support the NR+ operations.
- If a specific firmware is required, how can I get it? Could you please provide a download link or grant access to the appropriate DECT-enabled firmware bundle?
Thank you.
