Dear Sir,
I am working on nrf52832.softdevice S132. SDK15.
I am getting the following messages when I try to connect to the peripheral using nRFConnect.
The error is coming during sometime in the first 30 second, where I do a connect and an immediate disconnect.
app: Fatal error <warning> app: System reset.
But it is not happening regularly.
Once in a while it occurs.
I am attaching the code here.
I was calling sd_ble_gap_disconnect() immediately after establishing a connection.
Do we need to provide some delay between connect-disconnect?
If yes how can I do that and where?
Is there anything else I need to take care ( which I am missing in my code)?
Pl
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* Copyright (c) 2014 - 2018, Nordic Semiconductor ASA
*
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*
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* are permitted provided that the following conditions are met:
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/** @file
*
* @defgroup ble_sdk_app_bps_main main.c
* @{
* @ingroup ble_sdk_app_bps
* @brief Blood Pressure Service Sample Application main file.
*
* This file contains the source code for a sample application using the Blood pressure service.
* This file also contains the code for initializing and using the Battery Service and the Device
* Information Service. Furthermore, it demonstrates the use of the @ref srvlib_conn_params module.
*/
#include <stdint.h>
#include <string.h>
#include "nordic_common.h"
#include "nrf.h"
#include "nrf_drv_saadc.h"
#include "app_error.h"
#include "ble.h"
#include "ble_err.h"
#include "ble_hci.h"
#include "ble_srv_common.h"
#include "ble_advdata.h"
#include "ble_advertising.h"
#include "ble_bas.h"
#include "ble_bps.h"
#include "ble_dis.h"
#include "ble_conn_params.h"
#include "sensorsim.h"
#include "nrf_sdh.h"
#include "nrf_sdh_soc.h"
#include "nrf_sdh_ble.h"
#include "app_timer.h"
#include "peer_manager.h"
#include "bsp_btn_ble.h"
#include "fds.h"
#include "ble_conn_state.h"
#include "nrf_ble_gatt.h"
#include "nrf_ble_qwr.h"
#include "nrf_pwr_mgmt.h"
#include "nrf_drv_saadc.h"
#include "nrf_drv_clock.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#include "nrf_drv_clock.h"
#include "nrf_delay.h"
#include "nrf_drv_timer.h"//GK added
const nrf_drv_timer_t TIMER_LED = NRF_DRV_TIMER_INSTANCE(1);//GK added
#define DEVICE_NAME "Nordic_SIEVA" /**< Name of device. Will be included in the advertising data. */
#define MANUFACTURER_NAME "NordicSemiconductor" /**< Manufacturer. Will be passed to Device Information Service. */
#define MODEL_NUM "NS-Sieva-EXAMPLE" /**< Model number. Will be passed to Device Information Service. */
#define MANUFACTURER_ID 0x1122334455 /**< Manufacturer ID, part of System ID. Will be passed to Device Information Service. */
#define ORG_UNIQUE_ID 0x667788 /**< Organizational Unique ID, part of System ID. Will be passed to Device Information Service. */
#define APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shoulnd't need to modify this value. */
#define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */
#define APP_ADV_INTERVAL 40 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 25 ms). */
#define APP_ADV_DURATION 12000 /**< The advertising duration (180 seconds) in units of 10 milliseconds. */
#define NUM_SIM_MEAS_VALUES 4 /**< Number of simulated measurements to cycle through. */
#define SIM_MEAS_1_SYSTOLIC 117 /**< Simulated measurement value for systolic pressure. */
#define SIM_MEAS_1_DIASTOLIC 76 /**< Simulated measurement value for diastolic pressure. */
#define SIM_MEAS_1_MEAN_AP 103 /**< Simulated measurement value for mean arterial pressure. */
#define SIM_MEAS_1_PULSE_RATE 60 /**< Simulated measurement value for pulse rate. */
#define SIM_MEAS_2_SYSTOLIC 121 /**< Simulated measurement value for systolic pressure. */
#define SIM_MEAS_2_DIASTOLIC 81 /**< Simulated measurement value for diastolic pressure. */
#define SIM_MEAS_2_MEAN_AP 106 /**< Simulated measurement value for mean arterial pressure. */
#define SIM_MEAS_2_PULSE_RATE 72 /**< Simulated measurement value for pulse rate. */
#define SIM_MEAS_3_SYSTOLIC 138 /**< Simulated measurement value for systolic pressure. */
#define SIM_MEAS_3_DIASTOLIC 88 /**< Simulated measurement value for diastolic pressure. */
#define SIM_MEAS_3_MEAN_AP 120 /**< Simulated measurement value for mean arterial pressure. */
#define SIM_MEAS_3_PULSE_RATE 105 /**< Simulated measurement value for pulse rate. */
#define SIM_MEAS_4_SYSTOLIC 145 /**< Simulated measurement value for systolic pressure. */
#define SIM_MEAS_4_DIASTOLIC 100 /**< Simulated measurement value for diastolic pressure. */
#define SIM_MEAS_4_MEAN_AP 131 /**< Simulated measurement value for mean arterial pressure. */
#define SIM_MEAS_4_PULSE_RATE 125 /**< Simulated measurement value for pulse rate. */
#define WAKE_UP_INTERVAL APP_TIMER_TICKS(300000)
#define POPULATE_INTERVAL APP_TIMER_TICKS(30000)
#define BATTERY_LEVEL_MEAS_INTERVAL APP_TIMER_TICKS(2000) /**< Battery level measurement interval (ticks). */
#define MIN_BATTERY_LEVEL 81 /**< Minimum battery level as returned by the simulated measurement function. */
#define MAX_BATTERY_LEVEL 100 /**< Maximum battery level as returned by the simulated measurement function. */
#define BATTERY_LEVEL_INCREMENT 1 /**< Value by which the battery level is incremented/decremented for each call to the simulated measurement function. */
#define MIN_CONN_INTERVAL MSEC_TO_UNITS(500, UNIT_1_25_MS) /**< Minimum acceptable connection interval (0.5 seconds). */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(1000, UNIT_1_25_MS) /**< Maximum acceptable connection interval (1 second). */
#define SLAVE_LATENCY 0 /**< Slave latency. */
#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory timeout (4 seconds). */
#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000) /**< Time from initiating event (connect or start of indication) to first time sd_ble_gap_conn_param_update is called (5 seconds). */
#define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(30000) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */
#define MAX_CONN_PARAMS_UPDATE_COUNT 3 /**< Number of attempts before giving up the connection parameter negotiation. */
#define SEC_PARAM_BOND 1 /**< Perform bonding. */
#define SEC_PARAM_MITM 0 /**< Man In The Middle protection not required. */
#define SEC_PARAM_LESC 0 /**< LE Secure Connections not enabled. */
#define SEC_PARAM_KEYPRESS 0 /**< Keypress notifications not enabled. */
#define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_NONE /**< No I/O capabilities. */
#define SEC_PARAM_OOB 0 /**< Out Of Band data not available. */
#define SEC_PARAM_MIN_KEY_SIZE 7 /**< Minimum encryption key size. */
#define SEC_PARAM_MAX_KEY_SIZE 16 /**< Maximum encryption key size. */
#define ADC_REF_VOLTAGE_IN_MILLIVOLTS 600 /**< Reference voltage (in milli volts) used by ADC while doing conversion. */
#define ADC_PRE_SCALING_COMPENSATION 6 /**< The ADC is configured to use VDD with 1/3 prescaling as input. And hence the result of conversion is to be multiplied by 3 to get the actual value of the battery voltage.*/
#define DIODE_FWD_VOLT_DROP_MILLIVOLTS 270 /**< Typical forward voltage drop of the diode . */
#define ADC_RES_10BIT 1024 /**< Maximum digital value for 10-bit ADC conversion. */
#define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */
/**@brief Macro to convert the result of ADC conversion in millivolts.
*
* @param[in] ADC_VALUE ADC result.
*
* @retval Result converted to millivolts.
*/
#define ADC_RESULT_IN_MILLI_VOLTS(ADC_VALUE)\
((((ADC_VALUE) * ADC_REF_VOLTAGE_IN_MILLIVOLTS) / ADC_RES_10BIT) * ADC_PRE_SCALING_COMPENSATION)
// General application timer settings.
//#define APP_TIMER_PRESCALER 15 // Value of the RTC1 PRESCALER register.
//#define APP_TIMER_OP_QUEUE_SIZE 3 // Size of timer operation queues.
/**@brief Structure for a simulated blood pressure measurment. An instance of this struct is
filled out before sending a notification to the peer with ble_bps_measurement_send.
*/
/*typedef struct// GK commented
{
ieee_float16_t systolic;
ieee_float16_t diastolic;
ieee_float16_t mean_arterial;
ieee_float16_t pulse_rate;
} bps_meas_sim_value_t;*/
APP_TIMER_DEF(wakeup_timer_id);
APP_TIMER_DEF(populate_timer_id);
APP_TIMER_DEF(m_battery_timer_id); /**< Battery timer. */
BLE_BAS_DEF(m_bas); /**< Structure used to identify the battery service. */
//BLE_BPS_DEF(m_bps); /**< Structure used to identify the blood pressure service. *///GK commented
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
NRF_BLE_QWR_DEF(m_qwr); /**< Context for the Queued Write module.*/
BLE_ADVERTISING_DEF(m_advertising); /**< Advertising module instance. */
typedef struct
{
int8_t rssi; /**< Received Signal Strength Indication in dBm. */
ble_gap_addr_t peer_addr; /**< Bluetooth address of the peer device. If the peer_addr resolved: @ref ble_gap_addr_t::addr_id_peer is set to 1
and the address is the device's identity address. */
} list_peer;
static nrf_saadc_value_t adc_buf[2];
static list_peer peak_rssi[10];
static uint16_t pop_flag;
static int8_t p_rssi ;
int fg;
static uint16_t wakeup_flag;
list_peer temp_addr;
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
//static bps_meas_sim_value_t m_bps_meas_sim_val[NUM_SIM_MEAS_VALUES]; /**< Blood Pressure simulated measurements. *///GK commented
//static bool m_bps_meas_ind_conf_pending = false; /**< Flag to keep track of when an indication confirmation is pending. *///GK commented
//static sensorsim_cfg_t m_battery_sim_cfg; /**< Battery Level sensor simulator configuration. */
//static sensorsim_state_t m_battery_sim_state; /**< Battery Level sensor simulator state. */
static ble_uuid_t m_adv_uuids[] = /**< Universally unique service identifiers. */
{
{BLE_UUID_BLOOD_PRESSURE_SERVICE, BLE_UUID_TYPE_BLE},
{BLE_UUID_BATTERY_SERVICE, BLE_UUID_TYPE_BLE},
{BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE}
};
static void advertising_start(bool erase_bonds);
static void blood_pressure_measurement_send(void);
/**@brief Callback function for asserts in the SoftDevice.
*
* @details This function will be called in case of an assert in the SoftDevice.
*
* @warning This handler is an example only and does not fit a final product. You need to analyze
* how your product is supposed to react in case of Assert.
* @warning On assert from the SoftDevice, the system can only recover on reset.
*
* @param[in] line_num Line number of the failing ASSERT call.
* @param[in] file_name File name of the failing ASSERT call.
*/
void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
{
app_error_handler(DEAD_BEEF, line_num, p_file_name);
}
/**@brief Function for handling Peer Manager events.
*
* @param[in] p_evt Peer Manager event.
*/
static void pm_evt_handler(pm_evt_t const * p_evt)
{
ret_code_t err_code;
bool is_indication_enabled;
switch (p_evt->evt_id)
{
case PM_EVT_BONDED_PEER_CONNECTED:
{
NRF_LOG_INFO("Connected to a previously bonded device.");
} break;
case PM_EVT_CONN_SEC_SUCCEEDED:
{
NRF_LOG_INFO("Connection secured: role: %d, conn_handle: 0x%x, procedure: %d.",
ble_conn_state_role(p_evt->conn_handle),
p_evt->conn_handle,
p_evt->params.conn_sec_succeeded.procedure);
// Send a single blood pressure measurement if indication is enabled.
// NOTE: For this to work, make sure ble_bps_on_ble_evt() is called before
// ble_bondmngr_on_ble_evt() in ble_evt_dispatch().
/* err_code = ble_bps_is_indication_enabled(&m_bps, &is_indication_enabled);//GK commented
APP_ERROR_CHECK(err_code);
if (is_indication_enabled)
{
blood_pressure_measurement_send();
}*/
} break;
case PM_EVT_CONN_SEC_FAILED:
{
/* Often, when securing fails, it shouldn't be restarted, for security reasons.
* Other times, it can be restarted directly.
* Sometimes it can be restarted, but only after changing some Security Parameters.
* Sometimes, it cannot be restarted until the link is disconnected and reconnected.
* Sometimes it is impossible, to secure the link, or the peer device does not support it.
* How to handle this error is highly application dependent. */
} break;
case PM_EVT_CONN_SEC_CONFIG_REQ:
{
// Reject pairing request from an already bonded peer.
pm_conn_sec_config_t conn_sec_config = {.allow_repairing = false};
pm_conn_sec_config_reply(p_evt->conn_handle, &conn_sec_config);
} break;
case PM_EVT_STORAGE_FULL:
{
// Run garbage collection on the flash.
err_code = fds_gc();
if (err_code == FDS_ERR_NO_SPACE_IN_QUEUES)
{
// Retry.
}
else
{
APP_ERROR_CHECK(err_code);
}
} break;
case PM_EVT_PEERS_DELETE_SUCCEEDED:
{
advertising_start(false);
} break;
case PM_EVT_PEER_DATA_UPDATE_FAILED:
{
// Assert.
APP_ERROR_CHECK(p_evt->params.peer_data_update_failed.error);
} break;
case PM_EVT_PEER_DELETE_FAILED:
{
// Assert.
APP_ERROR_CHECK(p_evt->params.peer_delete_failed.error);
} break;
case PM_EVT_PEERS_DELETE_FAILED:
{
// Assert.
APP_ERROR_CHECK(p_evt->params.peers_delete_failed_evt.error);
} break;
case PM_EVT_ERROR_UNEXPECTED:
{
// Assert.
APP_ERROR_CHECK(p_evt->params.error_unexpected.error);
} break;
case PM_EVT_CONN_SEC_START:
case PM_EVT_PEER_DATA_UPDATE_SUCCEEDED:
case PM_EVT_PEER_DELETE_SUCCEEDED:
case PM_EVT_LOCAL_DB_CACHE_APPLIED:
case PM_EVT_LOCAL_DB_CACHE_APPLY_FAILED:
// This can happen when the local DB has changed.
case PM_EVT_SERVICE_CHANGED_IND_SENT:
case PM_EVT_SERVICE_CHANGED_IND_CONFIRMED:
default:
break;
}
}
static void populate_timeout_handler(void * p_context){
UNUSED_PARAMETER(p_context);
// NRF_LOG_INFO("\n Populate stopped ");
pop_flag = 2;
}
static void wakeup_timeout_handler(void * p_context)
{
bool erase_bonds;
UNUSED_PARAMETER(p_context);
// NRF_LOG_INFO("\n WakeUp");
ret_code_t err_code;
/* if (erase_bonds == true)
{
delete_bonds();
// Advertising is started by PM_EVT_PEERS_DELETE_SUCCEEDED event.
}
else
{
ret_code_t err_code;
err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_DIRECTED);
APP_ERROR_CHECK(err_code);
}*/
pop_flag = 0;
err_code = app_timer_start(populate_timer_id, POPULATE_INTERVAL, NULL);//GK added
APP_ERROR_CHECK(err_code);//GK added
//NRF_LOG_INFO("Restart advertising 6");
advertising_start(erase_bonds);
}
/**@brief Function for handling the ADC interrupt.
*
* @details This function will fetch the conversion result from the ADC, convert the value into
* percentage and send it to peer.
*/
void saadc_event_handler(nrf_drv_saadc_evt_t const * p_event)
{
if (p_event->type == NRF_DRV_SAADC_EVT_DONE)
{
nrf_saadc_value_t adc_result;
uint16_t batt_lvl_in_milli_volts;
uint8_t percentage_batt_lvl;
uint32_t err_code;
adc_result = p_event->data.done.p_buffer[0];
err_code = nrf_drv_saadc_buffer_convert(p_event->data.done.p_buffer, 1);
APP_ERROR_CHECK(err_code);
batt_lvl_in_milli_volts = ADC_RESULT_IN_MILLI_VOLTS(adc_result) +
DIODE_FWD_VOLT_DROP_MILLIVOLTS;
//NRF_LOG_INFO("saadc_event_handler = %d \n",batt_lvl_in_milli_volts);
percentage_batt_lvl = battery_level_in_percent(batt_lvl_in_milli_volts);
//NRF_LOG_INFO("saadc_event_handler = %d \n",percentage_batt_lvl);
err_code = ble_bas_battery_level_update(&m_bas, percentage_batt_lvl, BLE_CONN_HANDLE_ALL);
if ((err_code != NRF_SUCCESS) &&
(err_code != NRF_ERROR_INVALID_STATE) &&
(err_code != NRF_ERROR_RESOURCES) &&
(err_code != NRF_ERROR_BUSY) &&
(err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
)
{
APP_ERROR_HANDLER(err_code);
}
}
}
/**@brief Function for configuring ADC to do battery level conversion.
*/
static void adc_configure(void)
{
ret_code_t err_code = nrf_drv_saadc_init(NULL, saadc_event_handler);
APP_ERROR_CHECK(err_code);
nrf_saadc_channel_config_t config =
NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_VDD);
err_code = nrf_drv_saadc_channel_init(0, &config);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_saadc_buffer_convert(&adc_buf[0], 1);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_saadc_buffer_convert(&adc_buf[1], 1);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the Battery measurement timer timeout.
*
* @details This function will be called each time the battery level measurement timer expires.
* This function will start the ADC.
*
* @param[in] p_context Pointer used for passing some arbitrary information (context) from the
* app_start_timer() call to the timeout handler.
*/
static void battery_level_meas_timeout_handler(void * p_context)
{
UNUSED_PARAMETER(p_context);
ret_code_t err_code;
// NRF_LOG_INFO("Battery \n");
err_code = nrf_drv_saadc_sample();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for populating simulated blood pressure measurements.
*/
/*static void bps_sim_measurement(ble_bps_meas_t * p_meas)// GK commented
{
static ble_date_time_t s_time_stamp = { 2012, 12, 5, 11, 05, 03 };
static uint8_t s_ndx = 0;
p_meas->blood_pressure_units_in_kpa = false;
p_meas->time_stamp_present = (s_ndx == 0) || (s_ndx == 2);
p_meas->pulse_rate_present = (s_ndx == 0) || (s_ndx == 1);
p_meas->user_id_present = false;
p_meas->measurement_status_present = false;
p_meas->blood_pressure_systolic.mantissa = m_bps_meas_sim_val[s_ndx].systolic.mantissa;
p_meas->blood_pressure_systolic.exponent = m_bps_meas_sim_val[s_ndx].systolic.exponent;
p_meas->blood_pressure_diastolic.mantissa = m_bps_meas_sim_val[s_ndx].diastolic.mantissa;
p_meas->blood_pressure_diastolic.exponent = m_bps_meas_sim_val[s_ndx].diastolic.exponent;
p_meas->mean_arterial_pressure.mantissa = m_bps_meas_sim_val[s_ndx].mean_arterial.mantissa;
p_meas->mean_arterial_pressure.exponent = m_bps_meas_sim_val[s_ndx].mean_arterial.exponent;
p_meas->time_stamp = s_time_stamp;
p_meas->pulse_rate.mantissa = m_bps_meas_sim_val[s_ndx].pulse_rate.mantissa;
p_meas->pulse_rate.exponent = m_bps_meas_sim_val[s_ndx].pulse_rate.exponent;
// Update index to simulated measurements.
s_ndx++;
if (s_ndx == NUM_SIM_MEAS_VALUES)
{
s_ndx = 0;
}
// Update simulated time stamp.
s_time_stamp.seconds += 27;
if (s_time_stamp.seconds > 59)
{
s_time_stamp.seconds -= 60;
s_time_stamp.minutes++;
if (s_time_stamp.minutes > 59)
{
s_time_stamp.minutes = 0;
}
}
}
*/
/**@brief Function for the Timer initialization.
*
* @details Initializes the timer module. This creates and starts application timers.
*/
static void timers_init(void)
{
ret_code_t err_code;
// Initialize timer module.
err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
// Create timers.
err_code = app_timer_create(&wakeup_timer_id,
APP_TIMER_MODE_REPEATED,
wakeup_timeout_handler);
APP_ERROR_CHECK(err_code);
err_code = app_timer_create(&populate_timer_id,
APP_TIMER_MODE_SINGLE_SHOT,
populate_timeout_handler);
APP_ERROR_CHECK(err_code);
err_code = app_timer_create(&m_battery_timer_id,
APP_TIMER_MODE_REPEATED,
battery_level_meas_timeout_handler);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for the GAP initialization.
*
* @details This function sets up all the necessary GAP (Generic Access Profile) parameters of the
* device including the device name, appearance, and the preferred connection parameters.
*/
static void gap_params_init(void)
{
uint32_t err_code;
ble_gap_conn_params_t gap_conn_params;
ble_gap_conn_sec_mode_t sec_mode;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
err_code = sd_ble_gap_device_name_set(&sec_mode,
(const uint8_t *)DEVICE_NAME,
strlen(DEVICE_NAME));
APP_ERROR_CHECK(err_code);
err_code = sd_ble_gap_appearance_set(BLE_APPEARANCE_GENERIC_BLOOD_PRESSURE);
APP_ERROR_CHECK(err_code);
memset(&gap_conn_params, 0, sizeof(gap_conn_params));
gap_conn_params.min_conn_interval = MIN_CONN_INTERVAL;
gap_conn_params.max_conn_interval = MAX_CONN_INTERVAL;
gap_conn_params.slave_latency = SLAVE_LATENCY;
gap_conn_params.conn_sup_timeout = CONN_SUP_TIMEOUT;
err_code = sd_ble_gap_ppcp_set(&gap_conn_params);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the GATT module.
*/
static void gatt_init(void)
{
ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for simulating and sending one Blood Pressure Measurement.
*/
/*static void blood_pressure_measurement_send(void)//GK commented
{
ble_bps_meas_t simulated_meas;
uint32_t err_code;
bool is_indication_enabled;
err_code = ble_bps_is_indication_enabled(&m_bps, &is_indication_enabled);
APP_ERROR_CHECK(err_code);
if (is_indication_enabled && !m_bps_meas_ind_conf_pending)
{
// bps_sim_measurement(&simulated_meas); // GK commented
err_code = ble_bps_measurement_send(&m_bps, &simulated_meas);
switch (err_code)
{
case NRF_SUCCESS:
// Measurement was successfully sent, wait for confirmation.
m_bps_meas_ind_conf_pending = true;
break;
case NRF_ERROR_INVALID_STATE:
// Ignore error.
break;
default:
APP_ERROR_HANDLER(err_code);
break;
}
}
}
*/
/**@brief Function for handling the Blood Pressure Service events.
*
* @details This function will be called for all Blood Pressure Service events which are passed to
* the application.
*
* @param[in] p_bps Blood Pressure Service structure.
* @param[in] p_evt Event received from the Blood Pressure Service.
*/
/*static void on_bps_evt(ble_bps_t * p_bps, ble_bps_evt_t * p_evt)//GK commented
{
switch (p_evt->evt_type)
{
case BLE_BPS_EVT_INDICATION_ENABLED:
// Indication has been enabled, send a single blood pressure measurement.
// blood_pressure_measurement_send();//GK commented
break;
case BLE_BPS_EVT_INDICATION_CONFIRMED:
m_bps_meas_ind_conf_pending = false;
break;
default:
// No implementation needed.
break;
}
}
*/
/**@brief Function for handling Queued Write Module errors.
*
* @details A pointer to this function will be passed to each service which may need to inform the
* application about an error.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void nrf_qwr_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for initializing the Battery Service.
*/
/**@brief Function for initializing services that will be used by the application.
*
* @details Initialize the Blood Pressure, Battery, and Device Information services.
*/
static void services_init(void)
{
uint32_t err_code;
// ble_bps_init_t bps_init; //GK commented
ble_bas_init_t bas_init;
ble_dis_init_t dis_init;
ble_dis_sys_id_t sys_id;
nrf_ble_qwr_init_t qwr_init = {0};
// Initialize Queued Write Module
qwr_init.error_handler = nrf_qwr_error_handler;
err_code = nrf_ble_qwr_init(&m_qwr, &qwr_init);
APP_ERROR_CHECK(err_code);
/* // Initialize Blood Pressure Service.//GK commented
memset(&bps_init, 0, sizeof(bps_init));
bps_init.evt_handler = on_bps_evt;
bps_init.feature = BLE_BPS_FEATURE_BODY_MOVEMENT_BIT |
BLE_BPS_FEATURE_MEASUREMENT_POSITION_BIT;
// Here the sec level for the Blood Pressure Service can be changed/increased.
BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&bps_init.bps_meas_attr_md.cccd_write_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&bps_init.bps_meas_attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&bps_init.bps_meas_attr_md.write_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bps_init.bps_feature_attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&bps_init.bps_feature_attr_md.write_perm);*/
//err_code = ble_bps_init(&m_bps, &bps_init);//GK commented
//APP_ERROR_CHECK(err_code);
// Initialize Battery Service.
memset(&bas_init, 0, sizeof(bas_init));
// Here the sec level for the Battery Service can be changed/increased.
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init.battery_level_char_attr_md.cccd_write_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init.battery_level_char_attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&bas_init.battery_level_char_attr_md.write_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init.battery_level_report_read_perm);
bas_init.evt_handler = NULL;
bas_init.support_notification = true;
bas_init.p_report_ref = NULL;
bas_init.initial_batt_level = 100;
err_code = ble_bas_init(&m_bas, &bas_init);
APP_ERROR_CHECK(err_code);
// Initialize Device Information Service.
memset(&dis_init, 0, sizeof(dis_init));
ble_srv_ascii_to_utf8(&dis_init.manufact_name_str, MANUFACTURER_NAME);
ble_srv_ascii_to_utf8(&dis_init.model_num_str, MODEL_NUM);
sys_id.manufacturer_id = MANUFACTURER_ID;
sys_id.organizationally_unique_id = ORG_UNIQUE_ID;
dis_init.p_sys_id = &sys_id;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&dis_init.dis_attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&dis_init.dis_attr_md.write_perm);
err_code = ble_dis_init(&dis_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the sensor simulators.
*/
/*static void sensor_simulator_init(void)// GK commented
{
m_battery_sim_cfg.min = MIN_BATTERY_LEVEL;
m_battery_sim_cfg.max = MAX_BATTERY_LEVEL;
m_battery_sim_cfg.incr = BATTERY_LEVEL_INCREMENT;
m_battery_sim_cfg.start_at_max = true;
sensorsim_init(&m_battery_sim_state, &m_battery_sim_cfg);
// Simulated measurement #1.
m_bps_meas_sim_val[0].systolic.mantissa = SIM_MEAS_1_SYSTOLIC;
m_bps_meas_sim_val[0].systolic.exponent = 0;
m_bps_meas_sim_val[0].diastolic.mantissa = SIM_MEAS_1_DIASTOLIC;
m_bps_meas_sim_val[0].diastolic.exponent = 0;
m_bps_meas_sim_val[0].mean_arterial.mantissa = SIM_MEAS_1_MEAN_AP;
m_bps_meas_sim_val[0].mean_arterial.exponent = 0;
m_bps_meas_sim_val[0].pulse_rate.mantissa = SIM_MEAS_1_PULSE_RATE;
m_bps_meas_sim_val[0].pulse_rate.exponent = 0;
// Simulated measurement #2.
m_bps_meas_sim_val[1].systolic.mantissa = SIM_MEAS_2_SYSTOLIC;
m_bps_meas_sim_val[1].systolic.exponent = 0;
m_bps_meas_sim_val[1].diastolic.mantissa = SIM_MEAS_2_DIASTOLIC;
m_bps_meas_sim_val[1].diastolic.exponent = 0;
m_bps_meas_sim_val[1].mean_arterial.mantissa = SIM_MEAS_2_MEAN_AP;
m_bps_meas_sim_val[1].mean_arterial.exponent = 0;
m_bps_meas_sim_val[1].pulse_rate.mantissa = SIM_MEAS_2_PULSE_RATE;
m_bps_meas_sim_val[1].pulse_rate.exponent = 0;
// Simulated measurement #3.
m_bps_meas_sim_val[2].systolic.mantissa = SIM_MEAS_3_SYSTOLIC;
m_bps_meas_sim_val[2].systolic.exponent = 0;
m_bps_meas_sim_val[2].diastolic.mantissa = SIM_MEAS_3_DIASTOLIC;
m_bps_meas_sim_val[2].diastolic.exponent = 0;
m_bps_meas_sim_val[2].mean_arterial.mantissa = SIM_MEAS_3_MEAN_AP;
m_bps_meas_sim_val[2].mean_arterial.exponent = 0;
m_bps_meas_sim_val[2].pulse_rate.mantissa = SIM_MEAS_3_PULSE_RATE;
m_bps_meas_sim_val[2].pulse_rate.exponent = 0;
// Simulated measurement #4.
m_bps_meas_sim_val[3].systolic.mantissa = SIM_MEAS_4_SYSTOLIC;
m_bps_meas_sim_val[3].systolic.exponent = 0;
m_bps_meas_sim_val[3].diastolic.mantissa = SIM_MEAS_4_DIASTOLIC;
m_bps_meas_sim_val[3].diastolic.exponent = 0;
m_bps_meas_sim_val[3].mean_arterial.mantissa = SIM_MEAS_4_MEAN_AP;
m_bps_meas_sim_val[3].mean_arterial.exponent = 0;
m_bps_meas_sim_val[3].pulse_rate.mantissa = SIM_MEAS_4_PULSE_RATE;
m_bps_meas_sim_val[3].pulse_rate.exponent = 0;
}*/
/**@brief Function for starting application timers.
*/
static void application_timers_start(void)
{
ret_code_t err_code;
// Start application timers.
err_code = app_timer_start(wakeup_timer_id, WAKE_UP_INTERVAL, NULL);
APP_ERROR_CHECK(err_code);
// err_code = app_timer_start(m_battery_timer_id, BATTERY_LEVEL_MEAS_INTERVAL, NULL);
APP_ERROR_CHECK(err_code);
err_code = app_timer_start(populate_timer_id, POPULATE_INTERVAL, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the Connection Parameter events.
*
* @details This function will be called for all events in the Connection Parameters Module which
* are passed to the application.
* @note All this function does is to disconnect. This could have been done by simply
* setting the disconnect_on_fail configuration parameter, but instead we use the
* event handler mechanism to demonstrate its use.
*
* @param[in] p_evt Event received from the Connection Parameters Module.
*/
static void on_conn_params_evt(ble_conn_params_evt_t * p_evt)
{
ret_code_t err_code;
if (p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED)
{
err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for handling a Connection Parameters error.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void conn_params_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for initializing the Connection Parameters module.
*/
static void conn_params_init(void)
{
uint32_t err_code;
ble_conn_params_init_t connection_params_init;
memset(&connection_params_init, 0, sizeof(connection_params_init));
connection_params_init.p_conn_params = NULL;
connection_params_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY;
connection_params_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY;
connection_params_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT;
connection_params_init.start_on_notify_cccd_handle = BLE_GATT_HANDLE_INVALID;
connection_params_init.disconnect_on_fail = false;
connection_params_init.evt_handler = on_conn_params_evt;
connection_params_init.error_handler = conn_params_error_handler;
err_code = ble_conn_params_init(&connection_params_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for putting the chip into sleep mode.
*
* @note This function will not return.
*/
static void sleep_mode_enter(void)
{
ret_code_t err_code = bsp_indication_set(BSP_INDICATE_IDLE);
APP_ERROR_CHECK(err_code);
// Prepare wakeup buttons.
err_code = bsp_btn_ble_sleep_mode_prepare();
APP_ERROR_CHECK(err_code);
// Go to system-off mode (this function will not return; wakeup will cause a reset).
//err_code = sd_power_system_off();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling advertising events.
*
* @details This function will be called for advertising events which are passed to the application.
*
* @param[in] ble_adv_evt Advertising event.
*/
static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
{
ret_code_t err_code;
switch (ble_adv_evt)
{
case BLE_ADV_EVT_FAST:
//NRF_LOG_INFO("Fast advertising");
err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
APP_ERROR_CHECK(err_code);
break;
case BLE_ADV_EVT_IDLE:
sleep_mode_enter();
break;
default:
break;
}
}
void NRF_LOG_INFO_ARRAY(uint8_t * array, uint8_t array_size)
{
for(int i = 0; i < array_size; i++)
{
NRF_LOG_RAW_INFO("0x%x ",array[i]);
}
NRF_LOG_RAW_INFO("\r\n");
}
void populate(list_peer * pop_addr,ble_evt_t const * pp_ble_evt)
{
ret_code_t err_code;
// NRF_LOG_INFO(" Inside populate = %d",pop_addr->rssi);
// NRF_LOG_INFO("Received address");
//NRF_LOG_INFO_ARRAY(pop_addr->peer_addr.addr,BLE_GAP_ADDR_LEN);
//NRF_LOG_INFO("Received rssi = %d",pop_addr->rssi );
//NRF_LOG_INFO("Old peak address");
//NRF_LOG_INFO_ARRAY(peak_rssi[0].peer_addr.addr,BLE_GAP_ADDR_LEN);
//NRF_LOG_INFO("Old peak rssi = %d",peak_rssi[0].rssi);
if ((pop_addr->rssi > peak_rssi[0].rssi ) && strncmp(peak_rssi[0].peer_addr.addr,pop_addr->peer_addr.addr,BLE_GAP_ADDR_LEN) !=0)
{
strncpy(peak_rssi[0].peer_addr.addr,pop_addr->peer_addr.addr,BLE_GAP_ADDR_LEN);
peak_rssi[0].rssi = pop_addr->rssi;
}
// NRF_LOG_INFO("New peak address");
// NRF_LOG_INFO_ARRAY(peak_rssi[0].peer_addr.addr,BLE_GAP_ADDR_LEN);
// NRF_LOG_INFO("New peak rssi = %d",peak_rssi[0].rssi);
// NRF_LOG_INFO(" End populate disconnecting = %d ", peak_rssi[0].rssi);
// nrf_delay_ms(250); // Added by gk to resolve the error coming on nRFConnect App
err_code = sd_ble_gap_disconnect(m_conn_handle/*pp_ble_evt->evt.gatts_evt.conn_handle*/,//gk modified
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if(err_code == NRF_SUCCESS)
{
//NRF_LOG_INFO("Success");
}else
{
//NRF_LOG_INFO("Failure");
}
APP_ERROR_CHECK(err_code);
}
void populate_report( ble_gap_evt_scan_req_report_t * scanreport )
{
NRF_LOG_INFO_ARRAY(scanreport->peer_addr.addr,BLE_GAP_ADDR_LEN);
NRF_LOG_INFO(" = %d",scanreport->rssi);
//NRF_LOG_INFO("before peak = %d ",peak_rssi.rssi);
NRF_LOG_INFO_ARRAY(peak_rssi[0].peer_addr.addr,BLE_GAP_ADDR_LEN);
NRF_LOG_INFO("= %d ",peak_rssi[0].rssi);
if(peak_rssi[0].rssi < scanreport->rssi )
{
NRF_LOG_INFO(" Inside Peak");
strncpy(peak_rssi[0].peer_addr.addr,scanreport->peer_addr.addr,BLE_GAP_ADDR_LEN);
peak_rssi[0].rssi = scanreport->rssi;
}
// peak_rssi.peer_addr.addr[5] =0x00;//added to check if disconnect happens or not.
NRF_LOG_INFO(" Peak has the following ");
NRF_LOG_INFO_ARRAY(peak_rssi[0].peer_addr.addr,BLE_GAP_ADDR_LEN);
NRF_LOG_INFO("= %d ",peak_rssi[0].rssi);
}
/**@brief Function for handling BLE events.
*
* @param[in] p_ble_evt Bluetooth stack event.
* @param[in] p_context Unused.
*/
static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
{
ret_code_t err_code = NRF_SUCCESS;
int8_t c_rssi;
ble_gap_addr_t c_addr;
ble_gap_addr_t peer_address_cent;
int8_t rssi_cent;
ble_gap_evt_scan_req_report_t * report;
uint8_t p_ch_index = 0;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
// NRF_LOG_INFO("Connected.gk");
// NRF_LOG_INFO_ARRAY(p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr,BLE_GAP_ADDR_LEN);
memcpy(temp_addr.peer_addr.addr,p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr,BLE_GAP_ADDR_LEN);
//NRF_LOG_INFO_ARRAY(peak_rssi[0].peer_addr.addr,BLE_GAP_ADDR_LEN);
// NRF_LOG_INFO_ARRAY(temp_addr.peer_addr.addr,BLE_GAP_ADDR_LEN);
// NRF_LOG_INFO("rssi value = %d",p_ble_evt->evt.gap_evt.params.rssi_changed.rssi);
// NRF_LOG_INFO("TYPE = %d",p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr_type);
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);
err_code = sd_ble_gap_rssi_start(m_conn_handle,5,0);
APP_ERROR_CHECK(err_code);
/* if (pop_flag != 2)
{
populate(&p_ble_evt->evt.gap_evt.params.connected.peer_addr,p_ble_evt);
}*/
if ((pop_flag == 2))
{
if ((strncmp(peak_rssi[0].peer_addr.addr,p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr,BLE_GAP_ADDR_LEN) !=0))
{
//nrf_delay_ms(250);
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gatts_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
}
else{
err_code = app_timer_stop(wakeup_timer_id);
APP_ERROR_CHECK(err_code);
wakeup_flag = 4;
}
}
/* peak_rssi[0].rssi = -90;
peak_rssi[0].peer_addr.addr[0] = 0x00;
peak_rssi[0].peer_addr.addr[1] = 0x00;
peak_rssi[0].peer_addr.addr[2] = 0x00;
peak_rssi[0].peer_addr.addr[3] = 0x00;
peak_rssi[0].peer_addr.addr[4] = 0x00;
peak_rssi[0].peer_addr.addr[5] = 0x00;
NRF_LOG_INFO("ARRAY RESET ");*/
break;
case BLE_GAP_EVT_RSSI_CHANGED:
err_code = sd_ble_gap_rssi_get (m_conn_handle,&p_rssi,&p_ch_index);
APP_ERROR_CHECK(err_code);
// NRF_LOG_INFO("RSSI = %d ",p_rssi);
err_code = sd_ble_gap_rssi_stop(m_conn_handle);
APP_ERROR_CHECK(err_code);
// NRF_LOG_INFO_ARRAY(temp_addr.peer_addr.addr,BLE_GAP_ADDR_LEN);
temp_addr.rssi = p_rssi;
// NRF_LOG_INFO("RSSI = %d ",temp_addr.rssi);
if (pop_flag != 2)
{
nrf_delay_ms(250);
populate(&temp_addr,p_ble_evt);
}
/* NRF_LOG_INFO("In BLE_GAP_EVT_RSSI_CHANGED ");
c_rssi = p_ble_evt->evt.gap_evt.params.rssi_changed.rssi;
c_addr = p_ble_evt->evt.gap_evt.params.connected.peer_addr;
NRF_LOG_INFO_ARRAY(p_ble_evt->evt.gap_evt.params.connected.peer_addr.addr,BLE_GAP_ADDR_LEN);
NRF_LOG_INFO("RSSI = %d ",c_rssi);
NRF_LOG_INFO("In BLE_GAP_EVT_RSSI_CHANGED End");*/
break;
case BLE_GAP_EVT_DISCONNECTED:
// NRF_LOG_INFO("Disconnected");
m_conn_handle = BLE_CONN_HANDLE_INVALID;
if(wakeup_flag == 4)
{
peak_rssi[0].rssi = -90;
peak_rssi[0].peer_addr.addr[0] = 0x00;
peak_rssi[0].peer_addr.addr[1] = 0x00;
peak_rssi[0].peer_addr.addr[2] = 0x00;
peak_rssi[0].peer_addr.addr[3] = 0x00;
peak_rssi[0].peer_addr.addr[4] = 0x00;
peak_rssi[0].peer_addr.addr[5] = 0x00;
// NRF_LOG_INFO("ARRAY RESET ");
err_code = app_timer_start(wakeup_timer_id,WAKE_UP_INTERVAL,NULL);
APP_ERROR_CHECK(err_code);
err_code = app_timer_start(populate_timer_id,POPULATE_INTERVAL,NULL);
APP_ERROR_CHECK(err_code);
pop_flag=0;
wakeup_flag=0;
}
// m_bps_meas_ind_conf_pending = false;//GK commented
break;
case BLE_GAP_EVT_PHY_UPDATE_REQUEST:
{
NRF_LOG_DEBUG("PHY update request.");
ble_gap_phys_t const phys =
{
.rx_phys = BLE_GAP_PHY_AUTO,
.tx_phys = BLE_GAP_PHY_AUTO,
};
err_code = sd_ble_gap_phy_update(p_ble_evt->evt.gap_evt.conn_handle, &phys);
APP_ERROR_CHECK(err_code);
} break;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
NRF_LOG_DEBUG("GATT Client Timeout.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gattc_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTS_EVT_TIMEOUT:
// Disconnect on GATT Server timeout event.
NRF_LOG_DEBUG("GATT Server Timeout.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gatts_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_SCAN_REQ_REPORT:
NRF_LOG_INFO("In scan req report ");
report = &(p_ble_evt->evt.gap_evt.params.scan_req_report);
rssi_cent = p_ble_evt->evt.gap_evt.params.scan_req_report.rssi;
peer_address_cent = p_ble_evt->evt.gap_evt.params.scan_req_report.peer_addr;
NRF_LOG_INFO_ARRAY(peer_address_cent.addr,BLE_GAP_ADDR_LEN);
NRF_LOG_INFO_ARRAY(report->peer_addr.addr,BLE_GAP_ADDR_LEN);
NRF_LOG_INFO("rssi = %d",rssi_cent );
NRF_LOG_INFO("rssi = %d",report->rssi );
populate_report(report);
/* NRF_LOG_INFO("addr = %x",peer_address_cent.addr[0] );
NRF_LOG_INFO("addr = %x",peer_address_cent.addr[1] );
NRF_LOG_INFO("addr = %x",peer_address_cent.addr[2] );
NRF_LOG_INFO("addr = %x",peer_address_cent.addr[3] );
NRF_LOG_INFO("addr = %x",peer_address_cent.addr[4] );
NRF_LOG_INFO("addr = %x",peer_address_cent.addr[5] );*/
NRF_LOG_INFO("End");
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for initializing the BLE stack.
*
* @details Initializes the SoftDevice and the BLE event interrupt.
*/
static void ble_stack_init(void)
{
ret_code_t err_code;
err_code = nrf_sdh_enable_request();
APP_ERROR_CHECK(err_code);
// Configure the BLE stack using the default settings.
// Fetch the start address of the application RAM.
uint32_t ram_start = 0;
err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start);
APP_ERROR_CHECK(err_code);
// Enable BLE stack.
err_code = nrf_sdh_ble_enable(&ram_start);
APP_ERROR_CHECK(err_code);
// Register a handler for BLE events.
NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
}
/**@brief Function for handling events from the BSP module.
*
* @param[in] event Event generated by button press.
*/
static void bsp_event_handler(bsp_event_t event)
{
ret_code_t err_code;
switch (event)
{
case BSP_EVENT_SLEEP:
sleep_mode_enter();
break;
case BSP_EVENT_DISCONNECT:
err_code = sd_ble_gap_disconnect(m_conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
break;
case BSP_EVENT_WHITELIST_OFF:
if (m_conn_handle == BLE_CONN_HANDLE_INVALID)
{
err_code = ble_advertising_restart_without_whitelist(&m_advertising);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
}
break;
/* case BSP_EVENT_KEY_0:// GK commented
if (m_conn_handle != BLE_CONN_HANDLE_INVALID)
{
blood_pressure_measurement_send();
}
break;*/
default:
break;
}
}
/**@brief Function for the Peer Manager initialization.
*/
static void peer_manager_init(void)
{
ble_gap_sec_params_t sec_param;
ret_code_t err_code;
err_code = pm_init();
APP_ERROR_CHECK(err_code);
memset(&sec_param, 0, sizeof(ble_gap_sec_params_t));
// Security parameters to be used for all security procedures.
sec_param.bond = SEC_PARAM_BOND;
sec_param.mitm = SEC_PARAM_MITM;
sec_param.lesc = SEC_PARAM_LESC;
sec_param.keypress = SEC_PARAM_KEYPRESS;
sec_param.io_caps = SEC_PARAM_IO_CAPABILITIES;
sec_param.oob = SEC_PARAM_OOB;
sec_param.min_key_size = SEC_PARAM_MIN_KEY_SIZE;
sec_param.max_key_size = SEC_PARAM_MAX_KEY_SIZE;
sec_param.kdist_own.enc = 1;
sec_param.kdist_own.id = 1;
sec_param.kdist_peer.enc = 1;
sec_param.kdist_peer.id = 1;
err_code = pm_sec_params_set(&sec_param);
APP_ERROR_CHECK(err_code);
err_code = pm_register(pm_evt_handler);
APP_ERROR_CHECK(err_code);
}
/**@brief Clear bond information from persistent storage.
*/
static void delete_bonds(void)
{
ret_code_t err_code;
NRF_LOG_INFO("Erase bonds!");
err_code = pm_peers_delete();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the Advertising functionality.
*/
static void advertising_init(void)
{
ret_code_t err_code;
ble_advertising_init_t init;
memset(&init, 0, sizeof(init));
init.advdata.name_type = BLE_ADVDATA_FULL_NAME;
init.advdata.include_appearance = true;
init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
init.advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
init.advdata.uuids_complete.p_uuids = m_adv_uuids;
init.config.ble_adv_fast_enabled = true;
init.config.ble_adv_fast_interval = APP_ADV_INTERVAL;
init.config.ble_adv_fast_timeout = APP_ADV_DURATION-1800;//GK added the subtraction operation
init.evt_handler = on_adv_evt;
err_code = ble_advertising_init(&m_advertising, &init);
APP_ERROR_CHECK(err_code);
ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
}
/**@brief Function for initializing buttons and leds.
*
* @param[out] p_erase_bonds Will be true if the clear bonding button was pressed to wake the application up.
*/
//static void buttons_leds_init(bool * p_erase_bonds)
static void leds_init(bool * p_erase_bonds) // GK modified
{
ret_code_t err_code;
bsp_event_t startup_event;
err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, bsp_event_handler);
// err_code = bsp_init(BSP_INIT_LEDS, bsp_event_handler);// GK modified
APP_ERROR_CHECK(err_code);
//err_code = bsp_btn_ble_init(NULL, &startup_event); //GK commented
//APP_ERROR_CHECK(err_code);
*p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);
}
/**@brief Function for initializing the nrf log module.
*/
static void log_init(void)
{
ret_code_t err_code = NRF_LOG_INIT(NULL);
APP_ERROR_CHECK(err_code);
NRF_LOG_DEFAULT_BACKENDS_INIT();
}
/**@brief Function for initializing power management.
*/
static void power_management_init(void)
{
ret_code_t err_code;
err_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the idle state (main loop).
*
* @details If there is no pending log operation, then sleep until next the next event occurs.
*/
static void idle_state_handle(void)
{
if (NRF_LOG_PROCESS() == false)
{
nrf_pwr_mgmt_run();
}
}
/**@brief Function for starting advertising.
*/
static void advertising_start(bool erase_bonds)
{
if (erase_bonds == true)
{
delete_bonds();
// Advertising is started by PM_EVT_PEERS_DELETE_SUCCEEDED event.
}
else{
//NRF_LOG_INFO("Restart advertising 7");
ret_code_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
}
}
// Function starting the internal LFCLK oscillator.
// This is needed by RTC1 which is used by the application timer
// (When SoftDevice is enabled the LFCLK is always running and this is not needed).
static void lfclk_request(void)
{
uint32_t err_code = nrf_drv_clock_init();
APP_ERROR_CHECK(err_code);
nrf_drv_clock_lfclk_request(NULL);
}
/**@brief Function for application main entry.
*/
int main(void)
{
bool erase_bonds;
peak_rssi[0].rssi = -90;
log_init();
timers_init();
// buttons_leds_init(&erase_bonds);
leds_init(&erase_bonds);//GK modified
power_management_init();
ble_stack_init();
adc_configure();
gap_params_init();
gatt_init();
advertising_init();
services_init();
//sensor_simulator_init();//GK commented
conn_params_init();
peer_manager_init();
// Start execution.
NRF_LOG_INFO("Sieva example started ");
application_timers_start();
advertising_start(erase_bonds);
// Enter main loop.
for (;;)
{
idle_state_handle();
}
}
/**
* @}
*/
ease have a look in to the code and help in resolving the issue.
Thanking you in advance.
with regards,
Geetha
