MPSL assert (mpsl_init: MPSL ASSERT: 112, 817)

[megannnn98]

Hi all.

I have a project on nrf52840 with ble. I needed to add a nrfx timer there. I deleted everything from the main function. Added the code from the timer-counter example.
The whole program crashes in a timer interrupt.  The program crashed while processing a timer interrupt. Moreover, I made the interrupt empty, but it didn't help. Removing the bluetooth part from prj.conf helped. So far, I don't need ble in the project, but it will come in handy soon. Can you tell me how to return ble to the project?

Error:

 [00:00:29.494,415] <err> mpsl_init: MPSL ASSERT: 112, 817
 [00:00:29.494,781] <err> os: **** HARD FAULT ****
 [00:00:29.495,117] <err> os:   Fault escalation (see below)
 [00:00:29.495,483] <err> os: ARCH_EXCEPT with reason 3

 [00:00:29.495,849] <err> os: r0/a1:  0x00000003  r1/a2:  0x20003f8c  r2/a3:  0x00000001
 [00:00:29.496,368] <err> os: r3/a4:  0x00000000 r12/ip:  0x2000504c r14/lr:  0x0003bd25
 [00:00:29.496,856] <err> os:  xpsr:  0x41000018
 [00:00:29.497,222] <err> os: s[ 0]:  0x00000000  s[ 1]:  0x00000000  s[ 2]:  0x0004be28  s[ 3]:  0x20007fc0
 [00:00:29.497,863] <err> os: s[ 4]:  0x00000331  s[ 5]:  0x00000000  s[ 6]:  0x0000000a  s[ 7]:  0x00018db9
 [00:00:29.498,504] <err> os: s[ 8]:  0x00323131  s[ 9]:  0x00000000  s[10]:  0x00000000  s[11]:  0x000161e1
 [00:00:29.499,145] <err> os: s[12]:  0x20001e30  s[13]:  0x200019b0  s[14]:  0x00000000  s[15]:  0x0001692f
 [00:00:29.499,786] <err> os: fpscr:  0x00000000
 [00:00:29.500,122] <err> os: Faulting instruction address (r15/pc): 0x00038808
 [00:00:29.500,579] <err> os: >>> ZEPHYR FATAL ERROR 3: Kernel oops on CPU 0
 [00:00:29.515,777] <err> os: Fault during interrupt handling

 [00:00:29.516,143] <err> os: Current thread: 0x20003cb0 (unknown)
 [00:00:29.521,453] <err> fatal_error: Resetting system

#define TIMER_INST_IDX 0

#define TIME_TO_WAIT_MS 5000UL

static void timer_handler(nrf_timer_event_t event_type, void* p_context) {

LOG_INF("%d", __LINE__);

if (event_type == NRF_TIMER_EVENT_COMPARE0) {

LOG_INF("%d", __LINE__);

// char * p_msg = (char *)p_context;

// LOG_INF("Timer finished. Context passed to the handler: >%s<", p_msg);

}

}

static int run() {

LOG_INF("Application started");

nrfx_err_t status;

(void)status;

nrfx_timer_t timer_inst = NRFX_TIMER_INSTANCE(TIMER_INST_IDX);

uint32_t base_frequency = NRF_TIMER_BASE_FREQUENCY_GET(timer_inst.p_reg);

nrfx_timer_config_t config = NRFX_TIMER_DEFAULT_CONFIG(base_frequency);

config.bit_width = NRF_TIMER_BIT_WIDTH_32;

config.p_context = (void*)"Some context";

status = nrfx_timer_init(&timer_inst, &config, timer_handler);

NRFX_ASSERT(status == NRFX_SUCCESS);

#if defined(__ZEPHYR__)

IRQ_DIRECT_CONNECT(

NRFX_IRQ_NUMBER_GET(NRF_TIMER_INST_GET(TIMER_INST_IDX)), IRQ_PRIO_LOWEST,

NRFX_TIMER_INST_HANDLER_GET(TIMER_INST_IDX), 0);

#endif

nrfx_timer_clear(&timer_inst);

uint32_t desired_ticks = nrfx_timer_ms_to_ticks(&timer_inst, TIME_TO_WAIT_MS);

LOG_INF("Time to wait: %lu ms", TIME_TO_WAIT_MS);

nrfx_timer_extended_compare(&timer_inst, NRF_TIMER_CC_CHANNEL0, desired_ticks,

NRF_TIMER_SHORT_COMPARE0_STOP_MASK, true);

nrfx_timer_enable(&timer_inst);

int cnt{};

while (true) {

k_sleep(K_MSEC(100));

LOG_INF("Tick%d", cnt++);

}

return -1;

}

Configuration:

CONFIG_NEWLIB_LIBC=y

CONFIG_NEWLIB_LIBC_NANO=n

CONFIG_STD_CPP2B=y

CONFIG_PM_DEVICE=y

CONFIG_POWEROFF=y

CONFIG_POSIX_MAX_FDS=16

CONFIG_POSIX_API=y

CONFIG_PTHREAD_IPC=y

CONFIG_MAX_PTHREAD_COUNT=5

CONFIG_SEM_VALUE_MAX=32767

CONFIG_POSIX_CLOCK=y

CONFIG_MAX_TIMER_COUNT=5

CONFIG_POSIX_MQUEUE=y

CONFIG_MSG_COUNT_MAX=16

CONFIG_MSG_SIZE_MAX=16

CONFIG_MQUEUE_NAMELEN_MAX=16

CONFIG_EVENTFD=n

CONFIG_MAIN_STACK_SIZE=4096

CONFIG_KERNEL_INIT_PRIORITY_OBJECTS=30

CONFIG_KERNEL_INIT_PRIORITY_DEFAULT=40

CONFIG_KERNEL_INIT_PRIORITY_DEVICE=50

CONFIG_APPLICATION_INIT_PRIORITY=90

CONFIG_FPU=y

CONFIG_FPU_SHARING=y

CONFIG_ADC=y

# Basic BT options

# CONFIG_BT=y

# CONFIG_BT_PERIPHERAL=y

# CONFIG_BT_DIS=y

# CONFIG_BT_DIS_PNP=n

# CONFIG_BT_DEVICE_NAME="DL200"

# CONFIG_BOARD_BLE_ADV_INTERVAL=388

# CONFIG_FLASH=y

# CONFIG_FLASH_PAGE_LAYOUT=y

# CONFIG_FLASH_MAP=y

# CONFIG_NVS=y

# CONFIG_SETTINGS=y

# CONFIG_BT_SETTINGS=y

# CONFIG_BT_DIS_MODEL="DL200"

# CONFIG_BT_DIS_MANUF="Greg's DL200"

# CONFIG_BT_DIS_SERIAL_NUMBER=y

# CONFIG_BT_DIS_SERIAL_NUMBER_STR="DL200A0139"

# CONFIG_BT_DIS_FW_REV=y

# CONFIG_BT_DIS_FW_REV_STR="1.0.0"

# CONFIG_BT_DIS_HW_REV=y

# CONFIG_BT_DIS_HW_REV_STR="1.0.0"

# CGMS Specific options

#Enable MCUBOOT bootloader build in the application

CONFIG_BOOTLOADER_MCUBOOT=y

#Include MCUMGR and the dependencies in the build

CONFIG_NCS_SAMPLE_MCUMGR_BT_OTA_DFU=y

CONFIG_DISABLE_FLASH_PATCH=y

CONFIG_NRFX_SPIM3=y

CONFIG_BOOT_BANNER=n

CONFIG_GPIO=y

CONFIG_NRFX_TIMER0=y

CONFIG_NRFX_TIMER1=y

CONFIG_NRFX_TIMER2=y

CONFIG_ASSERT=y

CONFIG_NRFX_PWM1=y

# Config logger

CONFIG_LOG=y

CONFIG_LOG_MODE_IMMEDIATE=y

CONFIG_LOG_DEFAULT_LEVEL=3

CONFIG_LOG_BACKEND_SHOW_COLOR=y

CONFIG_LOG_INFO_COLOR_GREEN=y

CONFIG_LOG_BACKEND_UART=y

CONFIG_LOG_BACKEND_UART_OUTPUT_TEXT=y

CONFIG_USE_SEGGER_RTT=y

CONFIG_LOG_BACKEND_RTT=y

CONFIG_LOG_BACKEND_UART=n

CONFIG_LOG_RUNTIME_FILTERING=y

CONFIG_LOG_BUFFER_SIZE=2048

CONFIG_LOG_PRINTK=y

CONFIG_LOG_PROCESS_TRIGGER_THRESHOLD=0

CONFIG_COVERAGE=n

CONFIG_LOG_TAG_MAX_LEN=8

CONFIG_SPI=y

CONFIG_WS2812_STRIP_SPI=y

CONFIG_LED_STRIP=y

CONFIG_LED_STRIP_LOG_LEVEL_DBG=y

CONFIG_WS2812_STRIP=y

[Einar Thorsrud]

Hi,

Which version of the nRF Connect SDK are you using? (I need to know that in order to be able to look up the assert)

[megannnn98]

Hi, Einar, thanks for your interest.

From the VS Code:

Zephyr SDK - 0.16.5
SDK v2.5.2

[Einar Thorsrud]

Thank you. The assert indicate that you are using TIMER0, which is reserved for MPSL. See the  MPSL Integration notes for a list of resoruces that cannot be used while the MPSL is used (which is the case when using Bluetooth, as the SoftDevice Controller depends on MPSL).

[megannnn98]

Einar, Thank you very much! I'll test it.