Hi,
I am working on implementing concurrent BLE UART central and peripheral service. I am doing this by taking "ble_app_hrs_rscs_relay" default example as a reference.
I am facing a issue where in "ble_stack_init()" function "nrf_sdh_ble_enable(&ram_start);" is returning "error code=4" and system is resetting.
I am using nrf52832 DK, sdk v14.0 and keil v 5.
How can I fix this issue?
Hi,
Error code 0x04 means NRF_ERROR_NO_MEM, and is returned from call to sd_ble_enable() in nrf_sdh_ble_enable(). The API documentation for the function suggest the following problem:
One or more of the following is true:
You should try to modify the RAM configuration for your application, please see this tutorial.
Best regards,
Jørgen
Hi Jorgen,
I made " NRF_SDH_BLE_VS_UUID_COUNT =1". Now the system is not resetting and it is able to scan and advertise at a time.
I am able to connect to the central and peripheral at a time, But the issue I am facing is when I am trying to send the data over BLE using nrfconnect the data is printing two times in UART terminal.
/**
* Copyright (c) 2014 - 2017, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
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* engineered, decompiled, modified and/or disassembled.
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/**
* @brief BLE Heart Rate and Running speed Relay application main file.
*
* @detail This application demonstrates a simple "Relay".
* Meaning we pass on the values that we receive. By combining a collector part on
* one end and a sensor part on the other, we show that the s130 can function
* simultaneously as a central and a peripheral device.
*
* In the figure below, the sensor ble_app_hrs connects and interacts with the relay
* in the same manner it would connect to a heart rate collector. In this case, the Relay
* application acts as a central.
*
* On the other side, a collector (such as Master Control panel or ble_app_hrs_c) connects
* and interacts with the relay the same manner it would connect to a heart rate sensor peripheral.
*
* Led layout:
* LED 1: Central side is scanning LED 2: Central side is connected to a peripheral
* LED 3: Peripheral side is advertising LED 4: Peripheral side is connected to a central
*
* @note While testing, be careful that the Sensor and Collector are actually connecting to the Relay,
* and not directly to each other!
*
* Peripheral Relay Central
* +--------+ +-----------|----------+ +-----------+
* | Heart | | Heart | Heart | | |
* | Rate | -----> | Rate -|-> Rate | -----> | Collector |
* | Sensor | | Collector | Sensor | | |
* +--------+ +-----------| and | +-----------+
* | Running | Running|
* +--------+ | Speed -|-> Speed |
* | Running|------> | Collector | Sensor |
* | Speed | +-----------|----------+
* | Sensor |
* +--------+
*/
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "nordic_common.h"
#include "nrf_sdh.h"
#include "nrf_sdh_soc.h"
#include "nrf_sdh_ble.h"
#include "peer_manager.h"
#include "app_timer.h"
#include "bsp_btn_ble.h"
#include "ble.h"
#include "ble_advdata.h"
#include "ble_advertising.h"
#include "ble_conn_params.h"
#include "ble_db_discovery.h"
#include "ble_hrs.h"
#include "ble_rscs.h"
#include "ble_hrs_c.h"
#include "ble_rscs_c.h"
#include "ble_conn_state.h"
#include "nrf_fstorage.h"
#include "fds.h"
#include "nrf_ble_gatt.h"
#include "ble_nus.h"//added
#include "app_uart.h"//added
#include "app_util_platform.h"//added
#include "ble_nus_c.h"//added
#include "nrf_delay.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#define NUS_SERVICE_UUID_TYPE BLE_UUID_TYPE_VENDOR_BEGIN /**< UUID type for the Nordic UART Service (vendor specific). */
#define ECHOBACK_BLE_UART_DATA 0 /**< Echo the UART data that is received over the Nordic UART Service back to the sender. */
#define PERIPHERAL_ADVERTISING_LED BSP_BOARD_LED_2
#define PERIPHERAL_CONNECTED_LED BSP_BOARD_LED_3
#define CENTRAL_SCANNING_LED BSP_BOARD_LED_0
#define CENTRAL_CONNECTED_LED BSP_BOARD_LED_1
#define DEVICE_NAME "Relay" /**< Name of device used for advertising. */
#define MANUFACTURER_NAME "NordicSemiconductor" /**< Manufacturer. Will be passed to Device Information Service. */
#define APP_ADV_INTERVAL 300 /**< The advertising interval (in units of 0.625 ms). This value corresponds to 187.5 ms. */
#define APP_ADV_TIMEOUT_IN_SECONDS 180 /**< The advertising timeout in units of seconds. */
#define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */
#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000) /**< Time from initiating event (connect or start of notification) 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 APP_FEATURE_NOT_SUPPORTED BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2 /**< Reply when unsupported features are requested. */
#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 in octets. */
#define SEC_PARAM_MAX_KEY_SIZE 16 /**< Maximum encryption key size in octets. */
#define SCAN_INTERVAL 0x00A0 /**< Determines scan interval in units of 0.625 millisecond. */
#define SCAN_WINDOW 0x0050 /**< Determines scan window in units of 0.625 millisecond. */
#define SCAN_TIMEOUT 0
#define MIN_CONNECTION_INTERVAL (uint16_t) MSEC_TO_UNITS(7.5, UNIT_1_25_MS) /**< Determines minimum connection interval in milliseconds. */
#define MAX_CONNECTION_INTERVAL (uint16_t) MSEC_TO_UNITS(30, UNIT_1_25_MS) /**< Determines maximum connection interval in milliseconds. */
#define SLAVE_LATENCY 0 /**< Determines slave latency in terms of connection events. */
#define SUPERVISION_TIMEOUT (uint16_t) MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Determines supervision time-out in units of 10 milliseconds. */
#define UUID16_SIZE 2 /**< Size of a UUID, in bytes. */
#define UUID32_SIZE 4 /**< Size of 32 bit UUID */
#define UUID128_SIZE 16 /**< Size of 128 bit UUID */
#define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */
#define CENTRAL_LINK_COUNT 1 /**< Number of central links used by the application. When changing this number remember to adjust the RAM settings*/
#define PERIPHERAL_LINK_COUNT 1 /**< Number of peripheral links used by the application. When changing this number remember to adjust the RAM settings*/
/**@brief Priority of the application BLE event handler.
* @note You shouldn't need to modify this value.
*/
#define APP_BLE_OBSERVER_PRIO 1
/**@brief Macro to unpack 16bit unsigned UUID from an octet stream.
*/
#define UUID16_EXTRACT(DST, SRC) \
do \
{ \
(*(DST)) = (SRC)[1]; \
(*(DST)) <<= 8; \
(*(DST)) |= (SRC)[0]; \
} while (0)
/**@brief Variable length data encapsulation in terms of length and pointer to data. */
typedef struct
{
uint8_t * p_data; /**< Pointer to data. */
uint16_t data_len; /**< Length of data. */
} data_t;
//BLE_HRS_DEF(m_hrs); /**< Heart rate service instance. */
//BLE_RSCS_DEF(m_rscs); /**< Running speed and cadence service instance. */
//BLE_HRS_C_DEF(m_hrs_c); /**< Heart rate service client instance. */
//BLE_RSCS_C_DEF(m_rscs_c); /**< Running speed and cadence service client instance. */
BLE_NUS_DEF(m_nus); /**< Heart rate service instance. */
BLE_NUS_C_DEF(m_ble_nus_c); /**< BLE NUS service client instance. */ /**< Running speed and cadence service instance. */
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
BLE_ADVERTISING_DEF(m_advertising); /**< Advertising module instance. */
BLE_DB_DISCOVERY_DEF(m_db_discovery); /**< Database discovery module instances. */
static char cmd[40];//added
bool peripheral_status=0,central_status=0;
bool peripheral_event=0;
static uint16_t m_conn_handle_nus_c = BLE_CONN_HANDLE_INVALID; /**< Connection handle for the HRS central application */
//static uint16_t m_conn_handle_rscs_c = BLE_CONN_HANDLE_INVALID; /**< Connection handle for the RSC central application */
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
static uint16_t m_conn_handle_to_disc = BLE_CONN_HANDLE_INVALID; /**< The connection handle on which to retry the DB discovery. */
static bool m_retry_db_disc; /**< Retry DB discovery if attempted while busy. */
static bool m_do_retry_db_disc;
static uint16_t m_ble_nus_max_data_len = BLE_GATT_ATT_MTU_DEFAULT - 3; /**< Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */
static ble_uuid_t m_adv_uuids[] = /**< Universally unique service identifier. */
{
{BLE_UUID_NUS_SERVICE, NUS_SERVICE_UUID_TYPE}
};
/**@brief names which the central applications will scan for, and which will be advertised by the peripherals.
* if these are set to empty strings, the UUIDs defined below will be used
*/
static char const m_target_periph_name[] = "";
///**@brief UUIDs which the central applications will scan for if the name above is set to an empty string,
// * and which will be advertised by the peripherals.
// */
//static ble_uuid_t m_adv_uuids[] =
//{
// {BLE_UUID_HEART_RATE_SERVICE, BLE_UUID_TYPE_BLE},
// {BLE_UUID_RUNNING_SPEED_AND_CADENCE, BLE_UUID_TYPE_BLE}
//};
/**@brief Parameters used when scanning. */
static ble_gap_scan_params_t const m_scan_params =
{
.active = 1,
.interval = SCAN_INTERVAL,
.window = SCAN_WINDOW,
.timeout = SCAN_TIMEOUT,
#if (NRF_SD_BLE_API_VERSION <= 2)
.selective = 0,
.p_whitelist = NULL,
#endif
#if (NRF_SD_BLE_API_VERSION >= 3)
.use_whitelist = 0,
#endif
};
/**@brief NUS uuid. */
static ble_uuid_t const m_nus_uuid =
{
.uuid = BLE_UUID_NUS_SERVICE,
.type = NUS_SERVICE_UUID_TYPE
};
/**@brief Connection parameters requested for connection. */
static ble_gap_conn_params_t const m_connection_param =
{
MIN_CONNECTION_INTERVAL,
MAX_CONNECTION_INTERVAL,
SLAVE_LATENCY,
SUPERVISION_TIMEOUT
};
/**@brief Function to handle 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] p_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(0xDEADBEEF, line_num, p_file_name);
}
/**@brief Function for handling errors from the Connection Parameters module.
*
* @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 Parses advertisement data, providing length and location of the field in case
* matching data is found.
*
* @param[in] Type of data to be looked for in advertisement data.
* @param[in] Advertisement report length and pointer to report.
* @param[out] If data type requested is found in the data report, type data length and
* pointer to data will be populated here.
*
* @retval NRF_SUCCESS if the data type is found in the report.
* @retval NRF_ERROR_NOT_FOUND if the data type could not be found.
*/
static uint32_t adv_report_parse(uint8_t type, data_t * p_advdata, data_t * p_typedata)
{
uint32_t index = 0;
uint8_t * p_data;
p_data = p_advdata->p_data;
while (index < p_advdata->data_len)
{
uint8_t field_length = p_data[index];
uint8_t field_type = p_data[index + 1];
if (field_type == type)
{
p_typedata->p_data = &p_data[index + 2];
p_typedata->data_len = field_length - 1;
return NRF_SUCCESS;
}
index += field_length + 1;
}
return NRF_ERROR_NOT_FOUND;
}
/**@brief Function for initiating scanning.
*/
static void scan_start(void)
{
ret_code_t err_code;
(void) sd_ble_gap_scan_stop();
err_code = sd_ble_gap_scan_start(&m_scan_params);
// It is okay to ignore this error since we are stopping the scan anyway.
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for initiating advertising and scanning.
*/
static void adv_scan_start(void)
{
ret_code_t err_code;
//check if there are no flash operations in progress
if (!nrf_fstorage_is_busy(NULL))
{
// Start scanning for peripherals and initiate connection to devices which
// advertise Heart Rate or Running speed and cadence UUIDs.
scan_start();
// Turn on the LED to signal scanning.
bsp_board_led_on(CENTRAL_SCANNING_LED);
// Start advertising.
err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
}
}
/**@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;
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);
} 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_BUSY || err_code == FDS_ERR_NO_SPACE_IN_QUEUES)
{
// Retry.
}
else
{
APP_ERROR_CHECK(err_code);
}
} break;
case PM_EVT_PEERS_DELETE_SUCCEEDED:
{
adv_scan_start();
} break;
case PM_EVT_LOCAL_DB_CACHE_APPLY_FAILED:
{
// The local database has likely changed, send service changed indications.
pm_local_database_has_changed();
} 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_SERVICE_CHANGED_IND_SENT:
case PM_EVT_SERVICE_CHANGED_IND_CONFIRMED:
default:
break;
}
}
/**@brief Function for handling characters received by the Nordic UART Service.
*
* @details This function takes a list of characters of length data_len and prints the characters out on UART.
* If @ref ECHOBACK_BLE_UART_DATA is set, the data is sent back to sender.
*/
static void ble_nus_chars_received_uart_print(uint8_t * p_data, uint16_t data_len)
{
ret_code_t ret_val;
NRF_LOG_DEBUG("Receiving data.");
NRF_LOG_HEXDUMP_DEBUG(p_data, data_len);
for (uint32_t i = 0; i < data_len; i++)
{
do
{
ret_val = app_uart_put(p_data[i]);
if ((ret_val != NRF_SUCCESS) && (ret_val != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("app_uart_put failed for index 0x%04x.", i);
APP_ERROR_CHECK(ret_val);
}
} while (ret_val == NRF_ERROR_BUSY);
}
if (p_data[data_len-1] == '\r')
{
while (app_uart_put('\n') == NRF_ERROR_BUSY);
}
if (ECHOBACK_BLE_UART_DATA)
{
// Send data back to peripheral.
do
{
ret_val = ble_nus_c_string_send(&m_ble_nus_c, p_data, data_len);
if ((ret_val != NRF_SUCCESS) && (ret_val != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("Failed sending NUS message. Error 0x%x. ", ret_val);
APP_ERROR_CHECK(ret_val);
}
} while (ret_val == NRF_ERROR_BUSY);
}
}
/**@brief Function for handling app_uart events.
*
* @details This function will receive a single character from the app_uart module and append it to
* a string. The string will be be sent over BLE when the last character received was a
* 'new line' '\n' (hex 0x0A) or if the string has reached the maximum data length.
*/
/**@snippet [Handling the data received over UART] */
void uart_event_handle(app_uart_evt_t * p_event)
{
static uint8_t data_array[BLE_NUS_MAX_DATA_LEN];
static uint8_t index = 0;
uint32_t err_code;
switch (p_event->evt_type)
{
case APP_UART_DATA_READY:
UNUSED_VARIABLE(app_uart_get(&data_array[index]));
index++;
if ((data_array[index - 1] == '\n') || (index >= (m_ble_nus_max_data_len)))
{
NRF_LOG_DEBUG("Ready to send data over BLE NUS");
NRF_LOG_HEXDUMP_DEBUG(data_array, index);
do
{
uint16_t length = (uint16_t)index;
err_code = ble_nus_string_send(&m_nus, data_array, &length);
if ( (err_code != NRF_ERROR_INVALID_STATE) && (err_code != NRF_ERROR_BUSY) )
{
APP_ERROR_CHECK(err_code);
}
} while (err_code == NRF_ERROR_BUSY);
index = 0;
}
break;
case APP_UART_COMMUNICATION_ERROR:
APP_ERROR_HANDLER(p_event->data.error_communication);
break;
case APP_UART_FIFO_ERROR:
APP_ERROR_HANDLER(p_event->data.error_code);
break;
default:
break;
}
}
/**@snippet [Handling the data received over UART] */
/**@brief Callback handling NUS Client events.
*
* @details This function is called to notify the application of NUS client events.
*
* @param[in] p_ble_nus_c NUS Client Handle. This identifies the NUS client
* @param[in] p_ble_nus_evt Pointer to the NUS Client event.
*/
/**@snippet [Handling events from the ble_nus_c module] */
static void ble_nus_c_evt_handler(ble_nus_c_t * p_ble_nus_c, ble_nus_c_evt_t const * p_ble_nus_evt)
{
uint32_t err_code;
switch (p_ble_nus_evt->evt_type)
{
case BLE_NUS_C_EVT_DISCOVERY_COMPLETE:
printf("Discovery complete.\r\n");
err_code = ble_nus_c_handles_assign(p_ble_nus_c, p_ble_nus_evt->conn_handle, &p_ble_nus_evt->handles);
APP_ERROR_CHECK(err_code);
err_code = ble_nus_c_tx_notif_enable(p_ble_nus_c);
APP_ERROR_CHECK(err_code);
printf("Connected to device with Nordic UART Service.\r\n");
break;
case BLE_NUS_C_EVT_NUS_TX_EVT:
ble_nus_chars_received_uart_print(p_ble_nus_evt->p_data, p_ble_nus_evt->data_len);
break;
case BLE_NUS_C_EVT_DISCONNECTED:
printf("Disconnected.\r\n");
scan_start();
break;
}
}
/**@snippet [Handling events from the ble_nus_c module] */
///**@brief Function for searching a UUID in the advertisement packets.
// *
/**@brief Reads an advertising report and checks if a UUID is present in the service list.
*
* @details The function is able to search for 16-bit, 32-bit and 128-bit service UUIDs.
* To see the format of a advertisement packet, see
* https://www.bluetooth.org/Technical/AssignedNumbers/generic_access_profile.htm
*
* @param[in] p_target_uuid The UUID to search for.
* @param[in] p_adv_report Pointer to the advertisement report.
*
* @retval true if the UUID is present in the advertisement report. Otherwise false
*/
static bool is_uuid_present(ble_uuid_t const * p_target_uuid,
ble_gap_evt_adv_report_t const * p_adv_report)
{
ret_code_t err_code;
ble_uuid_t extracted_uuid;
uint16_t index = 0;
uint8_t * p_data = (uint8_t *)p_adv_report->data;
while (index < p_adv_report->dlen)
{
uint8_t field_length = p_data[index];
uint8_t field_type = p_data[index + 1];
if ( (field_type == BLE_GAP_AD_TYPE_16BIT_SERVICE_UUID_MORE_AVAILABLE)
|| (field_type == BLE_GAP_AD_TYPE_16BIT_SERVICE_UUID_COMPLETE))
{
for (uint32_t i = 0; i < (field_length / UUID16_SIZE); i++)
{
err_code = sd_ble_uuid_decode(UUID16_SIZE,
&p_data[i * UUID16_SIZE + index + 2],
&extracted_uuid);
if (err_code == NRF_SUCCESS)
{
if (extracted_uuid.uuid == p_target_uuid->uuid)
{
return true;
}
}
}
}
else if ( (field_type == BLE_GAP_AD_TYPE_32BIT_SERVICE_UUID_MORE_AVAILABLE)
|| (field_type == BLE_GAP_AD_TYPE_32BIT_SERVICE_UUID_COMPLETE))
{
for (uint32_t i = 0; i < (field_length / UUID32_SIZE); i++)
{
err_code = sd_ble_uuid_decode(UUID32_SIZE,
&p_data[i * UUID32_SIZE + index + 2],
&extracted_uuid);
if (err_code == NRF_SUCCESS)
{
if ( (extracted_uuid.uuid == p_target_uuid->uuid)
&& (extracted_uuid.type == p_target_uuid->type))
{
return true;
}
}
}
}
else if ( (field_type == BLE_GAP_AD_TYPE_128BIT_SERVICE_UUID_MORE_AVAILABLE)
|| (field_type == BLE_GAP_AD_TYPE_128BIT_SERVICE_UUID_COMPLETE))
{
err_code = sd_ble_uuid_decode(UUID128_SIZE, &p_data[index + 2], &extracted_uuid);
if (err_code == NRF_SUCCESS)
{
if ( (extracted_uuid.uuid == p_target_uuid->uuid)
&& (extracted_uuid.type == p_target_uuid->type))
{
return true;
}
}
}
index += field_length + 1;
}
return false;
}
/**@brief Function for handling BLE events.
*
* @param[in] p_ble_evt Bluetooth stack event.
* @param[in] p_context Unused.
*/
static void on_ble_central_evt(ble_evt_t const * p_ble_evt)
{
ret_code_t err_code;
ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_ADV_REPORT:
{
ble_gap_evt_adv_report_t const * p_adv_report = &p_gap_evt->params.adv_report;
if (is_uuid_present(&m_nus_uuid, p_adv_report))
{
err_code = sd_ble_gap_connect(&p_adv_report->peer_addr,
&m_scan_params,
&m_connection_param,
APP_BLE_CONN_CFG_TAG);
if (err_code == NRF_SUCCESS)
{
// scan is automatically stopped by the connect
err_code = bsp_indication_set(BSP_INDICATE_IDLE);
APP_ERROR_CHECK(err_code);
NRF_LOG_INFO("Connecting to target %02x%02x%02x%02x%02x%02x",
p_adv_report->peer_addr.addr[0],
p_adv_report->peer_addr.addr[1],
p_adv_report->peer_addr.addr[2],
p_adv_report->peer_addr.addr[3],
p_adv_report->peer_addr.addr[4],
p_adv_report->peer_addr.addr[5]
);
}
}
}break; // BLE_GAP_EVT_ADV_REPORT
case BLE_GAP_EVT_CONNECTED:
printf("Connected to target\r\n");
err_code = ble_nus_c_handles_assign(&m_ble_nus_c, p_ble_evt->evt.gap_evt.conn_handle, NULL);
APP_ERROR_CHECK(err_code);
err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
APP_ERROR_CHECK(err_code);
// start discovery of services. The NUS Client waits for a discovery result
err_code = ble_db_discovery_start(&m_db_discovery, p_ble_evt->evt.gap_evt.conn_handle);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_TIMEOUT:
if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_SCAN)
{
printf("Scan timed out.\r\n");
scan_start();
}
else if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_CONN)
{
printf("Connection Request timed out.\r\n");
}
break;
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
// Pairing not supported
err_code = sd_ble_gap_sec_params_reply(p_ble_evt->evt.gap_evt.conn_handle, BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP, NULL, NULL);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST:
// Accepting parameters requested by peer.
err_code = sd_ble_gap_conn_param_update(p_gap_evt->conn_handle,
&p_gap_evt->params.conn_param_update_request.conn_params);
APP_ERROR_CHECK(err_code);
break;
#if defined(S132)
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;
#endif
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
printf("GATT Client Timeout.\r\n");
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.
printf("GATT Server Timeout.\r\n");
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;
default:
break;
}
}
/**@brief Function for handling BLE events.
*
* @param[in] p_ble_evt Bluetooth stack event.
* @param[in] p_context Unused.
*/
static void on_ble_peripheral_evt(ble_evt_t const * p_ble_evt)
{
uint32_t err_code;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
printf("peripheral Connected\r\n");
bsp_board_led_off(PERIPHERAL_ADVERTISING_LED);
bsp_board_led_on(PERIPHERAL_CONNECTED_LED);
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
break;
case BLE_GAP_EVT_DISCONNECTED:
printf("peripheral Disconnected\r\n");
bsp_board_led_off(PERIPHERAL_CONNECTED_LED);
bsp_board_led_on(PERIPHERAL_ADVERTISING_LED);
m_conn_handle = BLE_CONN_HANDLE_INVALID;
break;
#if defined(S132)
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;
#endif
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
// Pairing not supported
err_code = sd_ble_gap_sec_params_reply(m_conn_handle, BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP, NULL, NULL);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_DATA_LENGTH_UPDATE_REQUEST:
{
ble_gap_data_length_params_t dl_params;
// Clearing the struct will effectivly set members to @ref BLE_GAP_DATA_LENGTH_AUTO
memset(&dl_params, 0, sizeof(ble_gap_data_length_params_t));
err_code = sd_ble_gap_data_length_update(p_ble_evt->evt.gap_evt.conn_handle, &dl_params, NULL);
APP_ERROR_CHECK(err_code);
} break;
case BLE_GATTS_EVT_SYS_ATTR_MISSING:
// No system attributes have been stored.
err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0, 0);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
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.
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_EVT_USER_MEM_REQUEST:
err_code = sd_ble_user_mem_reply(p_ble_evt->evt.gattc_evt.conn_handle, NULL);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
{
ble_gatts_evt_rw_authorize_request_t req;
ble_gatts_rw_authorize_reply_params_t auth_reply;
req = p_ble_evt->evt.gatts_evt.params.authorize_request;
if (req.type != BLE_GATTS_AUTHORIZE_TYPE_INVALID)
{
if ((req.request.write.op == BLE_GATTS_OP_PREP_WRITE_REQ) ||
(req.request.write.op == BLE_GATTS_OP_EXEC_WRITE_REQ_NOW) ||
(req.request.write.op == BLE_GATTS_OP_EXEC_WRITE_REQ_CANCEL))
{
if (req.type == BLE_GATTS_AUTHORIZE_TYPE_WRITE)
{
auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_WRITE;
}
else
{
auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_READ;
}
auth_reply.params.write.gatt_status = APP_FEATURE_NOT_SUPPORTED;
err_code = sd_ble_gatts_rw_authorize_reply(p_ble_evt->evt.gatts_evt.conn_handle,
&auth_reply);
APP_ERROR_CHECK(err_code);
}
}
} break; // BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST
default:
// No implementation needed.
break;
}
}
/**@brief Function for handling advertising events.
*
* @param[in] ble_adv_evt Advertising event.
*/
static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
{
switch (ble_adv_evt)
{
case BLE_ADV_EVT_FAST:
{
printf("Fast advertising.\r\n");
bsp_board_led_on(PERIPHERAL_ADVERTISING_LED);
} break;
case BLE_ADV_EVT_IDLE:
{
ret_code_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
} break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for checking if a bluetooth stack event is an advertising timeout.
*
* @param[in] p_ble_evt Bluetooth stack event.
*/
static bool ble_evt_is_advertising_timeout(ble_evt_t const * p_ble_evt)
{
return ( (p_ble_evt->header.evt_id == BLE_GAP_EVT_TIMEOUT)
&& (p_ble_evt->evt.gap_evt.params.timeout.src == BLE_GAP_TIMEOUT_SRC_ADVERTISING));
}
static void db_discovery_retry(void)
{
m_retry_db_disc = false;
NRF_LOG_INFO("Retrying DB discovery on handle 0x%x.", m_conn_handle_to_disc);
memset(&m_db_discovery, 0x00, sizeof(m_db_discovery));
ret_code_t err_code = ble_db_discovery_start(&m_db_discovery, m_conn_handle_to_disc);
APP_ERROR_CHECK(err_code);
}
/**@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)
{
uint16_t conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
uint16_t role = ble_conn_state_role(conn_handle);
// Based on the role this device plays in the connection, dispatch to the right handler.
if (role == BLE_GAP_ROLE_PERIPH || ble_evt_is_advertising_timeout(p_ble_evt))
{
on_ble_peripheral_evt(p_ble_evt);
ble_nus_on_ble_evt ( p_ble_evt,&m_nus);
}
else if ((role == BLE_GAP_ROLE_CENTRAL) || (p_ble_evt->header.evt_id == BLE_GAP_EVT_ADV_REPORT))
{
on_ble_central_evt(p_ble_evt);
ble_nus_c_on_ble_evt(p_ble_evt,&m_ble_nus_c );
}
}
/**@brief Function for initializing the NUS Client. */
static void nus_c_init(void)
{
ret_code_t err_code;
ble_nus_c_init_t init;
init.evt_handler = ble_nus_c_evt_handler;
err_code = ble_nus_c_init(&m_ble_nus_c, &init);
printf("\r\n error code=%d",err_code);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the BLE stack.
*
* @details Initializes the SoftDevice and the BLE event interrupts.
*/
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 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 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)
{
ret_code_t err_code;
bsp_event_t startup_event;
err_code = bsp_init(BSP_INIT_LED | BSP_INIT_BUTTONS, NULL);
APP_ERROR_CHECK(err_code);
err_code = bsp_btn_ble_init(NULL, &startup_event);
APP_ERROR_CHECK(err_code);
*p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);
}
/**@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)
{
ret_code_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);
memset(&gap_conn_params, 0, sizeof(gap_conn_params));
gap_conn_params.min_conn_interval = MIN_CONNECTION_INTERVAL;
gap_conn_params.max_conn_interval = MAX_CONNECTION_INTERVAL;
gap_conn_params.slave_latency = SLAVE_LATENCY;
gap_conn_params.conn_sup_timeout = SUPERVISION_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 handling app_uart events.
// *
// * @details This function will receive a single character from the app_uart module and append it to
// * a string. The string will be be sent over BLE when the last character received was a
// * 'new line' i.e '\r\n' (hex 0x0D) or if the string has reached a length of
// * @ref NUS_MAX_DATA_LENGTH.
// */
///**@snippet [Handling the data received over UART] */
//void uart_event_handle(app_uart_evt_t * p_event)
//{
//
// // printf("entered uart eventhandler\r\n");
// static uint8_t data_array[BLE_NUS_MAX_DATA_LEN];
// static uint8_t index = 0;
// uint32_t err_code;
// switch (p_event->evt_type)
// {
// case APP_UART_DATA_READY:
// UNUSED_VARIABLE(app_uart_get(&data_array[index]));
// cmd[index]=data_array[index];
// index++;
// if ((data_array[index - 1] == '\n') || (index >= (BLE_NUS_MAX_DATA_LEN)))
// {
//
// if((strncmp((char*)data_array,"bothon",6)==0))
// {
// //bothon();
// //printf("\r\n entered in adv_sc");
// nrf_delay_ms(10);
// }
//
//
// else if((strncmp((char*)data_array,"bothoff",7)==0))
// {
// both_off();
// }
//
// if((strncmp((char *)data_array,"centralon",9)==0))
// {
//
//// nrf_delay_ms(10);
// adv_scan_start();
//
// }
//
// else if((strncmp((char *)data_array,"advon",5)==0))
// {
// printf("\r\n peripheral=%s",data_array);
// nrf_delay_ms(10);
// adv_on();
// }
//// err_code = ble_nus_string_send(&m_nus, data_array, index);
//// err_code=ble_nus_c_string_send(&m_ble_nus_c,data_array,index);//added for central
//// if (err_code != NRF_ERROR_INVALID_STATE)
//// {
//// APP_ERROR_CHECK(err_code);
//// }
//
// memset(&cmd, 0, sizeof(0));
//// printf("\r\n command1=%s",cmd);
// index = 0;
// }
// break;
// case APP_UART_COMMUNICATION_ERROR:
// APP_ERROR_HANDLER(p_event->data.error_communication);
// break;
// case APP_UART_FIFO_ERROR:
// APP_ERROR_HANDLER(p_event->data.error_code);
// break;
// default:
// break;
// }
//}
///**@snippet [Handling the data received over UART] */
/**@brief Function for initializing the UART module.
*/
/**@snippet [UART Initialization] */
static void uart_init(void)
{
uint32_t err_code;
const app_uart_comm_params_t comm_params =
{
.rx_pin_no = RX_PIN_NUMBER,
.tx_pin_no = TX_PIN_NUMBER,
.rts_pin_no = RTS_PIN_NUMBER,
.cts_pin_no = CTS_PIN_NUMBER,
.flow_control = APP_UART_FLOW_CONTROL_DISABLED,
.use_parity = false,
.baud_rate = UART_BAUDRATE_BAUDRATE_Baud115200
};
APP_UART_FIFO_INIT( &comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_event_handle,
APP_IRQ_PRIORITY_LOWEST,
err_code);
APP_ERROR_CHECK(err_code);
}
/**@snippet [UART Initialization] */
/**@brief Function for initializing the Connection Parameters module.
*/
static void conn_params_init(void)
{
ret_code_t err_code;
ble_conn_params_init_t cp_init;
memset(&cp_init, 0, sizeof(cp_init));
cp_init.p_conn_params = NULL;
cp_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY;
cp_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY;
cp_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT;
cp_init.start_on_notify_cccd_handle = BLE_CONN_HANDLE_INVALID; // Start upon connection.
cp_init.disconnect_on_fail = true;
cp_init.evt_handler = NULL; // Ignore events.
cp_init.error_handler = conn_params_error_handler;
err_code = ble_conn_params_init(&cp_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling database discovery events.
*
* @details This function is callback function to handle events from the database discovery module.
* Depending on the UUIDs that are discovered, this function should forward the events
* to their respective services.
*
* @param[in] p_event Pointer to the database discovery event.
*/
static void db_disc_handler(ble_db_discovery_evt_t * p_evt)
{
ble_nus_c_on_db_disc_evt(&m_ble_nus_c, p_evt);
if ( (p_evt->evt_type == BLE_DB_DISCOVERY_COMPLETE)
&& (m_retry_db_disc)
&& (m_conn_handle_to_disc != BLE_CONN_HANDLE_INVALID))
{
// DB discovery cannot be restarted directly here because the
// database discovery structure would need to be zeroed, however it is still
// needed by the module (it might have pending events to send).
// Let's set a flag and re-run DB discovery when we receive the next BLE event.
NRF_LOG_INFO("DB discovery can be retried.");
m_do_retry_db_disc = true;
}
}
/**
* @brief Database discovery initialization.
*/
static void db_discovery_init(void)
{
ret_code_t err_code = ble_db_discovery_init(db_disc_handler);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the data from the Nordic UART Service.
*
* @details This function will process the data received from the Nordic UART BLE Service and send
* it to the UART module.
*
* @param[in] p_nus Nordic UART Service structure.
* @param[in] p_data Data to be send to UART module.
* @param[in] length Length of the data.
*/
/**@snippet [Handling the data received over BLE] */
static void nus_data_handler(ble_nus_evt_t * p_evt)
{
if (p_evt->type == BLE_NUS_EVT_RX_DATA)
{
uint32_t err_code;
NRF_LOG_DEBUG("Received data from BLE NUS. Writing data on UART.");
NRF_LOG_HEXDUMP_DEBUG(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length);
for (uint32_t i = 0; i < p_evt->params.rx_data.length; i++)
{
do
{
err_code = app_uart_put(p_evt->params.rx_data.p_data[i]);
if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("Failed receiving NUS message. Error 0x%x. ", err_code);
APP_ERROR_CHECK(err_code);
}
} while (err_code == NRF_ERROR_BUSY);
}
if (p_evt->params.rx_data.p_data[p_evt->params.rx_data.length-1] == '\r')
{
while (app_uart_put('\n') == NRF_ERROR_BUSY);
}
}
}
/**@snippet [Handling the data received over BLE] */
/**@brief Function for initializing services that will be used by the application.
*
* @details Initialize the Heart Rate, Battery and Device Information services.
*/
static void services_init(void)
{
uint32_t err_code;
ble_nus_init_t nus_init;
memset(&nus_init, 0, sizeof(nus_init));
nus_init.data_handler = nus_data_handler;
err_code = ble_nus_init(&m_nus, &nus_init);
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_TIMEOUT_IN_SECONDS;
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 logging.
*/
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 the timer.
*/
static void timer_init(void)
{
ret_code_t err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
}
/** @brief Function to sleep until a BLE event is received by the application.
*/
static void power_manage(void)
{
ret_code_t err_code = sd_app_evt_wait();
APP_ERROR_CHECK(err_code);
}
int main(void)
{
bool erase_bonds;
//log_init();
timer_init();
uart_init();
buttons_leds_init(&erase_bonds);
// printf("\r\n after leds init");
// nrf_delay_ms(100);
ble_stack_init();
// printf("\r\n after stack init");
// nrf_delay_ms(100);
gap_params_init();
// printf("\r\n after gap_par init");
// nrf_delay_ms(100);
gatt_init();
// printf("\r\n after gatt init");
// nrf_delay_ms(100);
conn_params_init();
// printf("\r\n after conn_par init");
// nrf_delay_ms(100);
db_discovery_init();
// printf("\r\n after db_disc init");
// nrf_delay_ms(100);
peer_manager_init();
// printf("\r\n after peer_mng init");
// nrf_delay_ms(100);
nus_c_init();
// printf("\r\n after nus_c init");
// nrf_delay_ms(100);
// rscs_c_init();
services_init();
// printf("\r\n after services init");
// nrf_delay_ms(100);
advertising_init();
// printf("\r\n after advertising init");
// nrf_delay_ms(100);
if (erase_bonds == true)
{
// Scanning and advertising is done upon PM_EVT_PEERS_DELETE_SUCCEEDED event.
delete_bonds();
// Scanning and advertising is done by
}
else
{
adv_scan_start();
}
printf("Relay example started.");
for (;;)
{
if (NRF_LOG_PROCESS() == false)
{
// Wait for BLE events.
power_manage();
}
}
}
The above is my main code.
Could you please help me in solve this issue?
Thanks in advance.
I would recommend that you set breakpoints in your application where you call app_uart_put()/printf(), to see if you are actually printing the same data two times. Note that you will have to restart the application after hitting a breakpoint, in order to restore the state of the softdevice.
