ble_nus_data_send()

[kemao]

ble_nus_data_send() can not work .  SDK15.3.0.  I have used two NRF52832. Based on the examples ble_app_gatts_c and ble_app_gatts,I have added nus service . Now central role can send message to peripheral role , but when peripheral role send message. The ble_nus_data_send ()  function can not run the part After  VERIFY_PARAM_NOT_NULL(p_nus).How can I solve this problem.

uint32_t ble_nus_data_send(ble_nus_t * p_nus,
                           uint8_t   * p_data,
                           uint16_t  * p_length,
                           uint16_t    conn_handle)
{
    ret_code_t                 err_code;
    ble_gatts_hvx_params_t     hvx_params;
    ble_nus_client_context_t * p_client;

    VERIFY_PARAM_NOT_NULL(p_nus);

    err_code = blcm_link_ctx_get(p_nus->p_link_ctx_storage, conn_handle, (void *) &p_client);
    VERIFY_SUCCESS(err_code);

    if ((conn_handle == BLE_CONN_HANDLE_INVALID) || (p_client == NULL))
    {
        return NRF_ERROR_NOT_FOUND;
    }

    if (!p_client->is_notification_enabled)
    {
        return NRF_ERROR_INVALID_STATE;
    }

    if (*p_length > BLE_NUS_MAX_DATA_LEN)
    {
        return NRF_ERROR_INVALID_PARAM;
    }

    memset(&hvx_params, 0, sizeof(hvx_params));

    hvx_params.handle = p_nus->tx_handles.value_handle;
    hvx_params.p_data = p_data;
    hvx_params.p_len  = p_length;
    hvx_params.type   = BLE_GATT_HVX_NOTIFICATION;

    return sd_ble_gatts_hvx(conn_handle, &hvx_params);
}

[Karl Ylvisaker]

Hello,

The ble_nus_data_send ()  function can not run the part After  VERIFY_PARAM_NOT_NULL(p_nus).How can I solve this problem.

Could you verify what parameters you are making the ble_nus_data_send call with?  Please ensure that you are not providing a NULL pointer for the p_nus parameter.

Best regards,
Karl
 

[kemao]

sorry i have put wrong words ，In the function ，it seems code followed VERIFY_SUCCESS(err_code) not running

[Karl Ylvisaker]

Hello again,

I see. Which IDE are you working in? Are you familiar with using breakspoints during debugging, to pinpoint where it goes wrong?
There could be a number of different reasons for blcm_link_ctg_get returning an error code. It would be very helpful if you could tell me exactly which error code it returns with.

Best regards,
Karl