We are using nRF52840 DK with SDK17, our aim is to achieve Eddystone packet advertisement and connectable mode using FreeRTOS. Implementation started with ble_app_blinky example, at this stage with Freertos, packet advertisement (Beaconing) working fine and we able to receive the Eddystone beacons in mobile application. But as soon as we try to establish a connection (put the device into connectable mode) we get the below error and the code crashes.
<debug> nrf_ble_lesc: Initialized nrf_crypto. <debug> nrf_ble_lesc: Initialized nrf_ble_lesc. <debug> nrf_ble_lesc: Generating ECC key pair <info> app: Marker Application; built on Apr 22 2021 at 21:13:20 for nRF52840 <info> app: DevAddr C662550D DDD6F8DB <error> app: ERROR 3735928559 [Unknown error code] at /home/../external/freertos/source/tasks.c:4796 PC at: 0x000357DB <error> app: End of error report
It seems like as soon as connection thread starts, an interrupt is triggered but the firmware unable to handle and crashes.
We tried to fix we did few changes in "nrf_ble_es.c" ,
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#include <string.h>
#include "nrf_ble_es.h"
#include "app_error.h"
#include "fds.h"
#include "es_adv.h"
#include "es_battery_voltage.h"
#include "es_flash.h"
#include "es_gatts.h"
#include "es_security.h"
#include "es_slot.h"
#include "es_stopwatch.h"
#include "escs_defs.h"
#include "nrf_sdh_ble.h"
#include "nrf_sdh_freertos.h"
#include "nrf_delay.h"
#include "nrf_log.h"
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; //!< Connection handle.
static nrf_ble_escs_t m_ble_ecs; //!< Struct identifying the Eddystone Config Service.
static nrf_ble_es_evt_handler_t m_evt_handler; //!< Event handler.
uint8_t m_adv_handle = BLE_GAP_ADV_SET_HANDLE_NOT_SET; //!< Advertising handle used to identify an advertising set.
//extern bool ble_adv_conn_mode;
/**@brief Function for invoking registered callback.
*
* @param[in] evt Event to issue to callback.
*/
static void handle_evt(nrf_ble_es_evt_t evt)
{
if (m_evt_handler != NULL)
{
m_evt_handler(evt);
}
}
/**@brief Function resetting MAC address. Will resume advertisement. */
static void new_address_set(void)
{
ret_code_t err_code;
uint8_t bytes_available;
ble_gap_addr_t new_address;
new_address.addr_type = BLE_GAP_ADDR_TYPE_PUBLIC;
// Randomize the MAC address on every EID generation
(void)sd_rand_application_bytes_available_get(&bytes_available);
while (bytes_available < BLE_GAP_ADDR_LEN)
{
// wait for SD to acquire enough RNs
(void)sd_rand_application_bytes_available_get(&bytes_available);
}
(void)sd_rand_application_vector_get(new_address.addr, BLE_GAP_ADDR_LEN);
// Stop advertising to ensure that it is possible to change the address.
(void)sd_ble_gap_adv_stop(m_adv_handle);
do
{
err_code = sd_ble_gap_addr_set(&new_address);
} while (err_code == NRF_ERROR_INVALID_STATE);
APP_ERROR_CHECK(err_code);
if (es_adv_remain_connectable_get())
{
es_adv_start_connectable_adv();
}
else
{
es_adv_start_non_connctable_adv();
}
}
/**@brief Function updating MAC address if required.
*
* @param[in] demand_new_mac If 'true', mac address will be updated on next invocation when not connected.
* If 'false', simply check if we have an outstanding demand for new MAC and update if not connected.
*/
static void check_and_update_mac_address(bool demand_new_mac)
{
static bool reset_mac_address = false;
if (demand_new_mac)
{
reset_mac_address = true;
}
// Not possible to update MAC address while in a connection
if (m_conn_handle != BLE_CONN_HANDLE_INVALID)
{
return;
}
else if (reset_mac_address)
{
reset_mac_address = false;
new_address_set();
}
}
/**@brief Function to lock the beacon (change lock state characteristic to LOCKED)
*/
static void lock_beacon(void)
{
m_ble_ecs.lock_state = NRF_BLE_ESCS_LOCK_STATE_LOCKED;
}
/**@brief Function for handling BLE event from the SoftDevice.
*
* @param[in] p_ble_evt Pointer to BLE event.
*/
static void on_ble_evt(ble_evt_t const * p_ble_evt)
{
ret_code_t err_code;
es_flash_flags_t flash_flag = {{0}};
const es_slot_reg_t * p_reg = es_slot_get_registry();
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
m_conn_handle = p_ble_evt->evt.common_evt.conn_handle;
*(m_ble_ecs.p_active_slot) = 0;
break;
case BLE_GAP_EVT_DISCONNECTED:
m_conn_handle = BLE_CONN_HANDLE_INVALID;
for (uint32_t i = 0; i < APP_MAX_ADV_SLOTS; ++i)
{
err_code = es_slot_write_to_flash(i);
APP_ERROR_CHECK(err_code);
flash_flag.slot_is_empty[i] = !p_reg->slots[i].configured;
}
err_code = es_flash_access_flags(&flash_flag, ES_FLASH_ACCESS_WRITE);
APP_ERROR_CHECK(err_code);
es_flash_beacon_config_t beacon_config;
beacon_config.adv_interval = es_adv_interval_get();
beacon_config.remain_connectable = es_adv_remain_connectable_get();
err_code = es_flash_access_beacon_config(&beacon_config, ES_FLASH_ACCESS_WRITE);
APP_ERROR_CHECK(err_code);
if (m_ble_ecs.lock_state == NRF_BLE_ESCS_LOCK_STATE_UNLOCKED)
{
lock_beacon();
}
check_and_update_mac_address(false);
//ble_adv_conn_mode = false;
break;
default:
// No implementation needed.
break;
}
}
/**@brief Callback function to receive messages from the security module
*
* @details Need to be passed in during es_security_init(). The security
* module will callback anytime a particular security process is completed
*
* @params[in] slot_no Index of the slot
* @params[in] msg_type Message type corersponding to different security components
*/
static void nrf_ble_escs_security_cb(uint8_t slot_no, es_security_msg_t msg_type)
{
nrf_ble_escs_eid_id_key_t encrypted_id_key;
nrf_ble_escs_public_ecdh_key_t pub_ecdh_key;
ret_code_t err_code;
static ble_gatts_value_t value;
switch (msg_type)
{
case ES_SECURITY_MSG_UNLOCKED:
m_ble_ecs.lock_state = NRF_BLE_ESCS_LOCK_STATE_UNLOCKED;
break;
case ES_SECURITY_MSG_EID:
es_slot_eid_ready(slot_no);
#ifdef MAC_RANDOMIZED
check_and_update_mac_address(true);
#endif // MAC_RANDOMIZED
break;
case ES_SECURITY_MSG_IK:
es_security_encrypted_eid_id_key_get(slot_no, (uint8_t *)encrypted_id_key.key);
// Set the EID ID key in the slot so it can be exposed in the characteristic
es_slot_encrypted_eid_id_key_set(slot_no, &encrypted_id_key);
break;
case ES_SECURITY_MSG_ECDH:
es_security_pub_ecdh_get(slot_no, (uint8_t *)pub_ecdh_key.key);
// Set the characteristic to the ECDH key value
value.len = sizeof(nrf_ble_escs_public_ecdh_key_t);
value.offset = 0;
value.p_value = (uint8_t *)pub_ecdh_key.key;
if (m_conn_handle != BLE_CONN_HANDLE_INVALID)
{
err_code = sd_ble_gatts_value_set(m_ble_ecs.conn_handle,
m_ble_ecs.pub_ecdh_key_handles.value_handle,
&value);
if (err_code != NRF_SUCCESS)
{
APP_ERROR_CHECK(err_code);
}
}
break;
case ES_SECURITY_MSG_STORE_TIME:
// Every 24 hours any EID slots time is stored to flash to allow for power lock_state_handles
// recovery. Only time needs to be stored, but just store the entire slot anyway for API simplicity.
err_code = es_slot_write_to_flash(slot_no);
APP_ERROR_CHECK(err_code);
break;
default:
APP_ERROR_CHECK(NRF_ERROR_INVALID_PARAM); // Should never happen
break;
}
}
/**@brief Function for handling advertisement events from 'es_adv'.
*
* @param[in] evt Advertisement event to handle.
*/
static void adv_evt_handler(es_adv_evt_t evt)
{
switch (evt)
{
case ES_ADV_EVT_NON_CONN_ADV:
handle_evt(NRF_BLE_ES_EVT_ADVERTISEMENT_SENT);
es_security_update_time();
break;
case ES_ADV_EVT_CONNECTABLE_ADV_STARTED:
handle_evt(NRF_BLE_ES_EVT_CONNECTABLE_ADV_STARTED);
break;
case ES_ADV_EVT_CONNECTABLE_ADV_STOPPED:
handle_evt(NRF_BLE_ES_EVT_CONNECTABLE_ADV_STOPPED);
break;
default:
break;
}
}
/**@brief Initialize the ECS with initial values for the characteristics and other necessary modules */
static void ble_escs_init(void)
{
ret_code_t err_code;
nrf_ble_escs_init_t ecs_init;
nrf_ble_escs_init_params_t init_params;
int8_t tx_powers[ESCS_NUM_OF_SUPPORTED_TX_POWER] = ESCS_SUPPORTED_TX_POWER;
/*Init the broadcast capabilities characteristic*/
memset(&init_params.broadcast_cap, 0, sizeof(init_params.broadcast_cap));
init_params.broadcast_cap.vers_byte = ES_SPEC_VERSION_BYTE;
init_params.broadcast_cap.max_supp_total_slots = APP_MAX_ADV_SLOTS;
init_params.broadcast_cap.max_supp_eid_slots = APP_MAX_EID_SLOTS;
init_params.broadcast_cap.cap_bitfield = ( (APP_IS_VARIABLE_ADV_SUPPORTED << ESCS_BROADCAST_VAR_ADV_SUPPORTED_Pos)
| (APP_IS_VARIABLE_TX_POWER_SUPPORTED << ESCS_BROADCAST_VAR_TX_POWER_SUPPORTED_Pos))
& (ESCS_BROADCAST_VAR_RFU_MASK);
init_params.broadcast_cap.supp_frame_types = ( (APP_IS_URL_SUPPORTED << ESCS_FRAME_TYPE_URL_SUPPORTED_Pos)
| (APP_IS_UID_SUPPORTED << ESCS_FRAME_TYPE_UID_SUPPORTED_Pos)
| (APP_IS_TLM_SUPPORTED << ESCS_FRAME_TYPE_TLM_SUPPORTED_Pos)
| (APP_IS_EID_SUPPORTED << ESCS_FRAME_TYPE_EID_SUPPORTED_Pos))
& (ESCS_FRAME_TYPE_RFU_MASK);
memcpy(init_params.broadcast_cap.supp_radio_tx_power, tx_powers, ESCS_NUM_OF_SUPPORTED_TX_POWER);
init_params.adv_interval = APP_CFG_NON_CONN_ADV_INTERVAL_MS;
init_params.adv_tx_pwr = APP_CFG_DEFAULT_RADIO_TX_POWER;
init_params.radio_tx_pwr = 0x00;
init_params.factory_reset = 0;
init_params.remain_connectable.r_is_non_connectable_supported = APP_IS_REMAIN_CONNECTABLE_SUPPORTED;
// Initialize evt handlers and the service
memset(&ecs_init, 0, sizeof(ecs_init));
ecs_init.write_evt_handler = es_gatts_handle_write;
ecs_init.read_evt_handler = es_gatts_handle_read;
ecs_init.p_init_vals = &(init_params);
err_code = nrf_ble_escs_init(&m_ble_ecs, &ecs_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing 'es_adv' module. */
static void adv_init(void)
{
ret_code_t err_code;
es_flash_beacon_config_t beacon_config;
err_code = es_flash_access_beacon_config(&beacon_config, ES_FLASH_ACCESS_READ);
if (err_code == FDS_ERR_NOT_FOUND)
{
beacon_config.adv_interval = APP_CFG_NON_CONN_ADV_INTERVAL_MS;
beacon_config.remain_connectable = false;
}
else
{
APP_ERROR_CHECK(err_code);
}
es_adv_init(m_ble_ecs.uuid_type,
adv_evt_handler,
beacon_config.adv_interval,
beacon_config.remain_connectable,
&m_adv_handle);
}
/**@brief Function for initializing es_slots module. */
static void adv_slots_init(void)
{
uint8_t UID_Frame_Data[UID_FRAME_LENGTH] = UID_FRAME_DATA;
//Slot 0 UID
es_slot_t UID_adv_slot = {.slot_no = 0,
.radio_tx_pwr = DEFAULT_FRAME_TX_POWER,
.adv_frame.type = UID_FRAME_TYPE,
.adv_frame.length = UID_FRAME_LENGTH,
.adv_custom_tx_power = false,
.configured = true};
memcpy(&UID_adv_slot.adv_frame.frame, UID_Frame_Data, UID_FRAME_LENGTH) ;
es_slots_init(&UID_adv_slot);
}
void nrf_ble_es_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context)
{
ret_code_t err_code;
es_adv_on_ble_evt(p_ble_evt);
err_code = nrf_ble_escs_on_ble_evt(&m_ble_ecs, p_ble_evt);
APP_ERROR_CHECK(err_code);
on_ble_evt(p_ble_evt);
es_flash_on_ble_evt(p_ble_evt);
}
NRF_SDH_BLE_OBSERVER(m_es_observer, NRF_BLE_ES_BLE_OBSERVER_PRIO, nrf_ble_es_on_ble_evt, NULL);
void nrf_ble_es_on_start_connectable_advertising(void)
{
es_adv_start_connectable_adv();
}
void nrf_ble_es_on_start_connectable_adv(void * p_context)
{
es_adv_start_connectable_adv();
}
void nrf_ble_es_on_start_non_connectable_adv(void * p_context)
{
es_adv_start_non_connctable_adv();
}
void nrf_ble_es_init(nrf_ble_es_evt_handler_t evt_handler)
{
ret_code_t err_code;
uint8_t p_context = NULL;
m_evt_handler = evt_handler;
m_conn_handle = BLE_CONN_HANDLE_INVALID;
es_stopwatch_init();
err_code = es_gatts_init(&m_ble_ecs);
APP_ERROR_CHECK(err_code);
err_code = es_flash_init();
APP_ERROR_CHECK(err_code);
while (es_flash_num_pending_ops() > 0)
{
// Busy wait while initialization of FDS module completes
}
err_code = es_security_init(nrf_ble_escs_security_cb);
APP_ERROR_CHECK(err_code);
es_adv_timers_init();
ble_escs_init();
adv_slots_init();
adv_init();
es_adv_remain_connectable_set(true);
nrf_sdh_freertos_init(nrf_ble_es_on_start_connectable_adv, &p_context);
// The task will run nrf_ble_es_on_start_non_connectable_adv() before entering its loop.
//nrf_sdh_freertos_init(nrf_ble_es_on_start_non_connectable_adv, &p_context);
}
Doing so makes the program crash with the following logs:
<debug> nrf_ble_lesc: Initialized nrf_crypto. <debug> nrf_ble_lesc: Initialized nrf_ble_lesc. <debug> nrf_ble_lesc: Generating ECC key pair <error> app: SOFTDEVICE: ASSERTION FAILED
Further debugging leads us to the following function where we get the ASSERTION error:
ret_code_t es_security_init(es_security_msg_cb_t security_callback)
{
ret_code_t err_code;
if (security_callback == NULL)
{
return NRF_ERROR_INVALID_PARAM;
}
// Get lock code from 'es_app_config.h', or fetch it from flash if exists.
lock_code_init(m_aes_ecb_lk.key);
m_security_callback = security_callback;
memset(&m_ecdh, 0, sizeof(es_security_ecdh_t));
for (uint32_t i = 0; i < APP_MAX_EID_SLOTS; ++i)
{
m_security_slot[i].timing.time_counter = APP_CONFIG_TIMING_INIT_VALUE;
}
err_code = es_stopwatch_create(&m_seconds_passed_sw_id, APP_TIMER_TICKS(1000));
APP_ERROR_CHECK(err_code);
//Already Initialized through peer manager
//err_code = nrf_crypto_init();
//APP_ERROR_CHECK(err_code);
return NRF_SUCCESS;
}
Are we missing any configuration /settings here ?? How can we resolve this app: SOFTDEVIE ASSERTION FAILED ERROR, Is there is any other template program/example that we can to achieve the desired goal??
Thanks!
Memory segments and section placement macros giving as follows:
FLASH RX 0x0 0x100000;RAM RWX 0x20000000 0x40000 FLASH_PH_START=0x0 FLASH_PH_SIZE=0x100000 RAM_PH_START=0x20000000 RAM_PH_SIZE=0x40000 FLASH_START=0x27000 FLASH_SIZE=0xd9000 RAM_START=0x20005968 RAM_SIZE=0x3a698
