Error: Alexa Gadget Toolkits sample application for NRF52840

[mdot]

 Hello, 

I was trying to run the sample Alexa Gadget Application on my NR52840-DK, using nrf Connect SDK  v1.5.0. However, upon trying to run the application I am getting the following Error on the Serial Output. 

*** Booting Zephyr OS build v2.4.99-ncs1 ***
Starting Alexa Gadgets example
Trying to reconnect to bonded peer
Hold Button 4 while resetting/power cycling to erase bond.
[00:00:00.353,576] <inf> fs_nvs: 8 Sectors of 4096 bytes
[00:00:00.353,576] <inf> fs_nvs: alloc wra: 0, da0
[00:00:00.353,607] <inf> fs_nvs: data wra: 0, 3dd
[00:00:00.353,790] <inf> sdc_hci_driver: SoftDevice Controller build revision:
e5 c7 9c d9 91 00 1d 66 ea fb 6e 7b 98 2f 42 0d |.......f ..n{./B.
f1 60 93 c8 |.`..
[00:00:00.357,757] <inf> bt_hci_core: No ID address. App must call settings_load()
Connected 00:F3:61:4B:A5:B2 (public)
ASSERTION FAIL [success] @ WEST_TOPDIR/nrf/subsys/bluetooth/services/alexa_gadgets/gadgets_profile.c:788
protobuf_encoded is too small
[00:00:06.611,968] <err> os: r0/a1: 0x00000004 r1/a2: 0x00000314 r2/a3: 0x00000000
[00:00:06.611,999] <err> os: r3/a4: 0x000123ad r12/ip: 0x00000000 r14/lr: 0x0001f903
[00:00:06.611,999] <err> os: xpsr: 0x41000000
[00:00:06.611,999] <err> os: Faulting instruction address (r15/pc): 0x0002653a
[00:00:06.611,999] <err> os: >>> ZEPHYR FATAL ERROR 4: Kernel panic on CPU 0
[00:00:06.612,030] <err> os: Current thread: 0x20001918 (unknown)
[00:00:07.260,253] <err> fatal_error: Resetting system

Any help on how to resolve the issue would be appreciated.

Regards,

[Albrecht Markus Schellenberger]

Thanks a lot for your feedback!

In the video, version 0.4.4 is used, while the application manual of the SDK 1.5.0 states that version 0.4.2 should be used. I’m not sure if that is the problem anyway, but just to eliminate potential mismatches.

You also could try nRF Connect SDK v1.5.1 or 1.6.0 and see if that makes any difference.

Regards,

Markus

[mdot]

Hey, 

Thank you for your response. I have almost tried all variations, tried SDK 1.6.0  as well as used 0.4.4 and 0.4.2 nanopb  version as well. Interestingly, when i first tried the example it worked fine without any issues. However, it has been causing issues after that. Is there a way to completely reset the DK so that i can start from scratch again?

Regards,