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  • Case ID: 320258
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simple watchdog time for nRF9160 DK board for V2.5.0

Timothy

I have a nrf9160 DK board that I am running asset_tracker_v2. all is working fine. I want to add a simple watchdog timer control that will reset the board if I do not refresh the timer in N seconds. I do not need anything fancy. I just need the simplest implementation of a watchdog timer. Can you show me what I need to configure, setup, initialize, and call. I tried calling the function below but I got the error messages below in .../src/watchdog/watchdog_app.c; what am I doing wrong? I appreciate any help you could give.

watchdog_init_and_start()
watchdog_init_and_start called
*** Booting nRF Connect SDK v2.5.0 ***
ASSERTION FAIL [p_cb->state == NRFX_DRV_STATE_INITIALIZED] @ WEST_TOPDIR/modules/hal/nordic/nrfx/drivers/src/nrfx_wdt.c:164
[00:00:00.278,350] <err> os: r0/a1: 0x00000004 r1/a2: 0x000000a4 r2/a3: 0x00000002
[00:00:00.278,381] <err> os: r3/a4: 0x2000f560 r12/ip: 0x00000014 r14/lr: 0x00060707
[00:00:00.278,381] <err> os: xpsr: 0x41000000
[00:00:00.278,411] <err> os: s[ 0]: 0x200124e8 s[ 1]: 0x0006f490 s[ 2]: 0x00000000 s[ 3]: 0x00051de7
[00:00:00.278,411] <err> os: s[ 4]: 0x0006ea64 s[ 5]: 0x0006f490 s[ 6]: 0x00000001 s[ 7]: 0x0006ea3c
[00:00:00.278,442] <err> os: s[ 8]: 0x0006ea64 s[ 9]: 0x00046b5b s[10]: 0x0004ff71 s[11]: 0x00000000
[00:00:00.278,472] <err> os: s[12]: 0x2000cb84 s[13]: 0x0004e445 s[14]: 0x0006a0eb s[15]: 0x0006a0f1
[00:00:00.278,472] <err> os: fpscr: 0x0006ea3c
[00:00:00.278,503] <err> os: Faulting instruction address (r15/pc): 0x00069324
[00:00:00.278,564] <err> os: >>> ZEPHYR FATAL ERROR 4: Kernel panic on CPU 0
[00:00:00.278,594] <err> os: Current thread: 0x200120b0 (unknown)
*** Booting nRF Connect SDK v2.5.0 ***Resetting system
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  • 0

    Hello,

    Since you are using Asset Tracker v2, there is a watchdog in the utility module that you can enable (and look at its code).

    Best regards,

    Michal

  • 0 in reply to Michal

    Michal

    I believe I am using the watchdog utility. I called watchdog_init_and_start() to start and initialize the watchdog but I got an assertion error as shown above. what do I need to do to start, initialize, and use the watchdog time.

    ASSERTION FAIL [p_cb->state == NRFX_DRV_STATE_INITIALIZED] @ WEST_TOPDIR/modules/hal/nordic/nrfx/drivers/src/nrfx_wdt.c:164

  • 0 in reply to Timothy

    I moved the watchdog_init_and_start right before the "while(true)" infinite loop at the end of main(). I still get the assert. any idea what I am missing?

    *** Booting nRF Connect SDK v2.5.0 ***
    [00:00:00.278,625] <inf> app_event_manager: APP_EVT_START
    [00:00:00.524,536] <inf> app_event_manager: MODEM_EVT_INITIALIZED
    ASSERTION FAIL [p_cb->state == NRFX_DRV_STATE_INITIALIZED] @ WEST_TOPDIR/modules/hal/nordic/nrfx/drivers/src/nrfx_wdt.c:164
    [00:00:00.558,410] <err> os: r0/a1: 0x00000004 r1/a2: 0x000000a4 r2/a3: 0x00000004
    [00:00:00.558,410] <err> os: r3/a4: 0x2000f608 r12/ip: 0x00000014 r14/lr: 0x00060e4f
    [00:00:00.558,441] <err> os: xpsr: 0x41000000
    [00:00:00.558,471] <err> os: s[ 0]: 0x20012590 s[ 1]: 0x0006fef0 s[ 2]: 0x2000f5d0 s[ 3]: 0x00052433
    [00:00:00.558,471] <err> os: s[ 4]: 0x0006f4ac s[ 5]: 0x0006fef0 s[ 6]: 0x00000001 s[ 7]: 0x2001db40
    [00:00:00.558,502] <err> os: s[ 8]: 0x00070744 s[ 9]: 0x00046cb3 s[10]: 0x00000000 s[11]: 0x00046bf1
    [00:00:00.558,532] <err> os: s[12]: 0x00000000 s[13]: 0x00000108 s[14]: 0x2000ce10 s[15]: 0x2000f288
    [00:00:00.558,563] <err> os: fpscr: 0x00064845
    [00:00:00.558,563] <err> os: Faulting instruction address (r15/pc): 0x00069d18
    [00:00:00.558,624] <err> os: >>> ZEPHYR FATAL ERROR 4: Kernel panic on CPU 0
    [00:00:00.558,654] <err> os: Current thread: 0x20012158 (unknown)
    *** Booting nRF Connect SDK v2.5.0 ***Resetting system
    Attempting to boot slot 0.

  • 0 in reply to Timothy

    I will try to do some tests and I'll get back to you.

    Best regards,

    Michal

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