freertos & logging

zamek gravatar image

asked 2017-08-12 09:20:12 +0100

Hi All,

I would like to use FreeRTOS in my project. I try to play with the examples/ble_peripheral/ble_app_hrs_freertos project.

I have enabled logging with RTT. The program is working well, I can connect with JLinkRTTClient and I have seen log messages. And when I try to logging in a task ble_stack_thread function for example the first line of function:

NRF_LOG_INFO("Task started\r\n");

it goes to HardFault_c_handler with address 0x20002db8. When I comment this log messages it works well.

It seems to be some problem with FreeRTOS and logging.

I changed port_cmsis_systick.c as suggested here: https://devzone.nordicsemi.com/questi...

I use Debian Linux/Eclipse and SDK version is: nRF5_SDK_12.3.0_d7731ad

thnx Zamek

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zamek gravatar image

answered 2017-08-15 17:06:56 +0100

updated 2017-08-15 17:09:50 +0100

Hi Bjorn,

I downloaded the nRF5_SDK_14.0.0_3bcc1f7, but in this example contains only one task, which is the logging task:( The ble funcionality doesn't run in a task. It should be good. And I make a new task like this:

    // Start execution.
    if (pdPASS != xTaskCreate(logger_thread, "LOGGER", 256, NULL, 1, &m_logger_thread))

    if (pdPASS != xTaskCreate(alive_thread, "alive", 256, NULL, 1, &m_alive_thread))

and the task code is like this:

static void alive_thread(void *arg)
    int i=0;
    for(;;) {
        if (++i<10)

Unfortunately I got the next message in serial console:

    <error> nrf_sdh_freertos: SoftDevice task not created.
<error> app: Fatal

I used make flash_softdevice and make flash.

thx, Zamek

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bjorn-spockeli gravatar image

answered 2017-08-14 13:23:53 +0100

zamek gravatar image

updated 2017-08-15 16:42:57 +0100

HI Zamek, could you test this with the latest release of the SDK, i.e. SDK v14.0.0 and see if this is still an issue?

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Asked: 2017-08-12 09:20:12 +0100

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Last updated: aug. 15