nrf_cli_init is returning Error code 4

[Rekha]

Hi I am using nRF52832 .My application acts as central and Peripheral at the same time.

board acting as Central: scans and connect to peripherals without any error.

But when board advertises and another central device try to connect i am getting error code 4.

code: inside ble_event_handler i have this case.

case BLE_GAP_EVT_CONNECTED:

        {

            NRF_LOG_INFO("Connected.");

            err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);

            APP_ERROR_CHECK(err_code);

            m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;

            err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);

            APP_ERROR_CHECK(err_code);

          

            nrf_cli_ble_uart_config_t config = { .conn_handle = m_conn_handle };

 

            err_code = nrf_cli_init(&m_ble_cli, &config, true, true, NRF_LOG_SEVERITY_INFO);

            APP_ERROR_CHECK(nrf_cli_task_create(&m_ble_cli));

            NRF_LOG_INFO("error code after connection = %d\n", err_code); // Error occured here

 

            APP_ERROR_CHECK(err_code);

[Vidar Berg]

Hi,

I'm not sure why nrf_cli_init() is called on the connected event. Is this the only place where you initialize CLI in your app? 

[Rekha]

Hi Vidar,

initially uart is used as transport layer for CLI, on connected event ble_cli is used. this causes error only when a central tries to connect my device.

if my device is trying to connect to other peripherals there are no errors. code works fine.

i have attached main.c file for your reference in which i am calling these functions.2816.main.c

Thanks

Rekha

[Vidar Berg]

Hi Rekha,

Please try to debug nrf_cli_init() to see why it returns error 4. E.g., check if it's maybe coming from nrf_cli_ble_uart.c->cli_ble_uart_init()->blcm_link_ctx_get(). 

[Rekha]

Thank you.

Yes i am getting error in blcm_link_ctx_get().

condition:

if (conn_id >= p_link_ctx_storage->max_links_cnt)

    {

      NRF_LOG_INFO("max link count = %d %d\r\n", conn_id, p_link_ctx_storage->max_links_cnt);

        return NRF_ERROR_NO_MEM;

    }

this prints: conn_id  = 7, p_link_ctx_storage->max_links_cnt =1.

my device acts as both and central and peripheral simultaneously.

as central : device should connect 7 peripherals

as peripheral: device should connect 1 central.

how to achieve this?

do i need to change anything in sdk_config.h?

Thanks

[Vidar Berg]

Thanks for debugging this. Please try to increase NRF_CLI_BLE_UART_MAX_CLIENTS to 8 in sdk_config.h and see if that helps.

[Rekha]

yes i tried that but now device is not getting connected at all. i am not even getting BLE_EVT_CONNECTED now.

[Rekha]

any changes in the event handler ?

[Rekha]

Hi  while debugging its entering BLE_GAP_EVT_CONNECTED but printf statements inside this switch case are not displayed on terminal (i have opened PuTTy COM port terminal. )..how to check this?

Thanks.