I am new to BLE with my nRF51. I've got this example and I try to stop a RSSI scan when the device get all advertising data from the local device.
But when I try to add a loop for scanning the program just stop working nothing happens no scan at all. Maybe I put a loop the wrong places.
Then I try to compare MAC addr. with first one that the device read when MAC addr. matches program should stop scanning. Right now program
just stop/resume with Button 1 press.
I wonder is there any function or command to get only a single report of advertising data (Not the infinite loop)
/* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved.
*
* The information contained herein is property of Nordic Semiconductor ASA.
* Terms and conditions of usage are described in detail in NORDIC
* SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
*
* Licensees are granted free, non-transferable use of the information. NO
* WARRANTY of ANY KIND is provided. This heading must NOT be removed from
* the file.
*
*/
/** @file
*
* @defgroup ble_sdk_uart_over_ble_main main.c
* @{
* @ingroup ble_sdk_app_nus_eval
* @brief UART over BLE application main file.
*
* This file contains the source code for a sample application that uses the Nordic UART service.
* This application uses the @ref srvlib_conn_params module.
*/
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include "nordic_common.h"
#include "nrf.h"
#include "ble_hci.h"
#include "ble_advdata.h"
#include "ble_advertising.h"
#include "ble_conn_params.h"
#include "softdevice_handler.h"
#include "app_timer.h"
#include "boards.h"
#include "app_button.h"
#include "ble_nus.h"
#include "app_uart.h"
#include "app_util_platform.h"
#include "bsp.h"
#include "bsp_btn_ble.h"
#include "app_util.h"
#include "ble_gap.h"
#include "app_error.h"
#include "app_timer.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
//#include "ble_db_discovery.h"
#include "fstorage.h"
#define IS_SRVC_CHANGED_CHARACT_PRESENT 0 /**< Include the service_changed characteristic. If not enabled, the server's database cannot be changed for the lifetime of the device. */
#if (NRF_SD_BLE_API_VERSION == 3)
#define NRF_BLE_MAX_MTU_SIZE GATT_MTU_SIZE_DEFAULT /**< MTU size used in the softdevice enabling and to reply to a BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST event. */
#endif
#define APP_FEATURE_NOT_SUPPORTED BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2 /**< Reply when unsupported features are requested. */
#define CENTRAL_LINK_COUNT 0 /**< 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*/
#define DEVICE_NAME "Nordic_GET_RSSI" /**< Name of device. Will be included in the advertising data. */
#define NUS_SERVICE_UUID_TYPE BLE_UUID_TYPE_VENDOR_BEGIN /**< UUID type for the Nordic UART Service (vendor specific). */
#define APP_ADV_INTERVAL 64 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 40 ms). */
#define APP_ADV_TIMEOUT_IN_SECONDS 180 /**< The advertising timeout (in units of seconds). */
#define APP_TIMER_PRESCALER 0 /**< Value of the RTC1 PRESCALER register. */
#define APP_TIMER_OP_QUEUE_SIZE 4 /**< Size of timer operation queues. */
#define MIN_CONN_INTERVAL MSEC_TO_UNITS(20, UNIT_1_25_MS) /**< Minimum acceptable connection interval (20 ms), Connection interval uses 1.25 ms units. */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(75, UNIT_1_25_MS) /**< Maximum acceptable connection interval (75 ms), Connection interval uses 1.25 ms units. */
#define SLAVE_LATENCY 0 /**< Slave latency. */
#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory timeout (4 seconds), Supervision Timeout uses 10 ms units. */
#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000, APP_TIMER_PRESCALER) /**< 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, APP_TIMER_PRESCALER) /**< 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 DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */
#define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */
static ble_nus_t m_nus; /**< Structure to identify the Nordic UART Service. */
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_NUS_SERVICE, NUS_SERVICE_UUID_TYPE}}; /**< Universally unique service identifier. */
uint8_t cr = 'F';
#if defined(BOARD_PCA10031)
#define SCAN_LED_PIN_NO LED_RGB_BLUE /**< Is on when device is scanning. */
#define CONNECTED_LED_PIN_NO LED_RGB_GREEN /**< Is on when device has connected. */
#define ASSERT_LED_PIN_NO LED_RGB_RED /**< Is on when application has asserted. */
#else
#define SCAN_LED_PIN_NO BSP_BOARD_LED_1 /**< Is on when device is scanning. */
#define CONNECTED_LED_PIN_NO BSP_BOARD_LED_2 /**< Is on when device has connected. */
#define ASSERT_LED_PIN_NO BSP_BOARD_LED_3 /**< Is on when application has asserted. */
#endif
// Start for Bluetooth Scan
//static bool m_whitelist_scan = true; /**< Scan mode used by application. */
//static dm_application_instance_t m_dm_app_id; /**< Application identifier. */
typedef enum
{
BLE_NO_SCAN, /**< No advertising running. */
BLE_WHITELIST_SCAN, /**< Advertising with whitelist. */
BLE_FAST_SCAN, /**< Fast advertising running. */
} ble_advertising_mode_t;
#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 0x0000 /**< Timout when scanning. 0x0000 disables timeout. */
#define MIN_CONNECTION_INTERVAL MSEC_TO_UNITS(7.5, UNIT_1_25_MS) /**< Determines minimum connection interval in milliseconds. */
#define MAX_CONNECTION_INTERVAL 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 MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Determines supervision time-out in units of 10 milliseconds. */
//#define NRF_LOG_MODULE_NAME "APP"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
/** @brief Scan parameters requested for scanning and connection. */
static const ble_gap_scan_params_t m_scan_params =
{
.active = 0,
.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,
.adv_dir_report = 0,
#endif
};
// Stop for Bluetooth Scan
/**@brief Function for assert macro callback.
*
* @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 analyse
* 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(DEAD_BEEF, line_num, p_file_name);
}
/**@brief Function for the GAP initialization.
*
* @details This function will set up all the necessary GAP (Generic Access Profile) parameters of
* the device. It also sets the permissions and appearance.
*/
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);
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 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_t * p_nus, uint8_t * p_data, uint16_t length)
{
for (uint32_t i = 0; i < length; i++)
{
while (app_uart_put(p_data[i]) != NRF_SUCCESS);
}
while (app_uart_put('\r') != NRF_SUCCESS);
while (app_uart_put('\n') != NRF_SUCCESS);
}
/**@snippet [Handling the data received over BLE] */
/**@brief Function for initializing services that will be used by the application.
*/
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 handling an event from the Connection Parameters Module.
*
* @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 config 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)
{
uint32_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 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 Function for initializing the Connection Parameters module.
*/
static void conn_params_init(void)
{
uint32_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_GATT_HANDLE_INVALID;
cp_init.disconnect_on_fail = false;
cp_init.evt_handler = on_conn_params_evt;
cp_init.error_handler = conn_params_error_handler;
err_code = ble_conn_params_init(&cp_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)
{
uint32_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)
{
uint32_t err_code;
switch (ble_adv_evt)
{
case BLE_ADV_EVT_FAST:
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;
}
}
/**@brief Function for the application's SoftDevice event handler.
*
* @param[in] p_ble_evt SoftDevice event.
*/
static void on_ble_evt(ble_evt_t * p_ble_evt)
{
uint32_t err_code;
//int8_t rssi_value;
//ble_gap_addr_t peer_address;
uint8_t cntData;
uint8_t devNameBuff[25], AdvData[31];
const ble_gap_evt_t * p_gap_evt = &p_ble_evt->evt.gap_evt;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_ADV_REPORT:
{
//if (is_uuid_present(&m_tb_uuid, p_adv_report))
if (p_ble_evt->evt.gap_evt.params.adv_report.scan_rsp == 0)
{
//printf("BLE_GAP_EVT_ADV_REPORT\r\n");
//peer_address = p_ble_evt->evt.gap_evt.params.scan_req_report.peer_addr;
//rssi_value = p_ble_evt->evt.gap_evt.params.scan_req_report.rssi;
const ble_gap_evt_adv_report_t * p_adv_report = &p_gap_evt->params.adv_report;
for(cntData=0 ; cntData<31;cntData++)
{
AdvData[cntData] = p_adv_report->data[cntData];
}
uint16_t plen;
printf("device name: ");
for(cntData=0 ; cntData<25;cntData++)
{
printf("%02x ",devNameBuff[cntData]);
}
printf("\n");
//printf("Found target %02x%02x%02x%02x%02x%02x\n\tRSSI Power: %i dBm\n\t dlen: %02x\n \tscan_rsp: %i\n",
// 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],
// p_adv_report->rssi,
// p_adv_report->dlen,
// p_adv_report->scan_rsp
// );
printf("RSSI Power: %i dBm\n\t dlen: %02x\n \tscan_rsp: %i\n",
p_adv_report->rssi,
p_adv_report->dlen,
p_adv_report->scan_rsp
);
err_code = sd_ble_gap_device_name_get(devNameBuff,&plen);
printf("\n");
// for(cntData=0 ; cntData<31;cntData++)
// {
// printf("AdvData[%i]: %02x\n",cntData,AdvData[cntData]);
// }
// err_code = sd_ble_gap_connect(&p_adv_report->peer_addr,
// &m_scan_params,
// &m_connection_param);
//err_code = 0;
// if (err_code == NRF_SUCCESS)
// {
// // scan is automatically stopped by the connect
// printf("Connecting to target %02x%02x%02x%02x%02x%02x\r\n",
// 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]
// );
// }
}
//sd_ble_gap_rssi_start(p_gap_evt->conn_handle,3,0); // Get RSSI
} break; // BLE_GAP_EVT_RSSI_CHANGED
case BLE_GAP_EVT_RSSI_CHANGED:
{
//NRF_LOG_INFO("Rssi is %d with conn_handle: %d\n",p_gap_evt->params.rssi_changed.rssi,p_gap_evt->conn_handle);
} break; // BLE_GAP_EVT_RSSI_CHANGED
case BLE_GAP_EVT_SCAN_REQ_REPORT:
{
printf("BLE_GAP_EVT_SCAN_REQ_REPORT\r\n");
} break; // BLE_GAP_EVT_RSSI_CHANGED
case BLE_GAP_EVT_CONNECTED:
err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
APP_ERROR_CHECK(err_code);
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
break; // BLE_GAP_EVT_CONNECTED
case BLE_GAP_EVT_DISCONNECTED:
err_code = bsp_indication_set(BSP_INDICATE_IDLE);
APP_ERROR_CHECK(err_code);
m_conn_handle = BLE_CONN_HANDLE_INVALID;
break; // BLE_GAP_EVT_DISCONNECTED
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; // BLE_GAP_EVT_SEC_PARAMS_REQUEST
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; // BLE_GATTS_EVT_SYS_ATTR_MISSING
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; // BLE_GATTC_EVT_TIMEOUT
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; // BLE_GATTS_EVT_TIMEOUT
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; // BLE_EVT_USER_MEM_REQUEST
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
#if (NRF_SD_BLE_API_VERSION == 3)
case BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST:
err_code = sd_ble_gatts_exchange_mtu_reply(p_ble_evt->evt.gatts_evt.conn_handle,
NRF_BLE_MAX_MTU_SIZE);
APP_ERROR_CHECK(err_code);
break; // BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST
#endif
default:
// No implementation needed.
break;
}
}
/**@brief Function for dispatching a SoftDevice event to all modules with a SoftDevice
* event handler.
*
* @details This function is called from the SoftDevice event interrupt handler after a
* SoftDevice event has been received.
*
* @param[in] p_ble_evt SoftDevice event.
*/
static void ble_evt_dispatch(ble_evt_t * p_ble_evt)
{
ble_conn_params_on_ble_evt(p_ble_evt);
ble_nus_on_ble_evt(&m_nus, p_ble_evt);
on_ble_evt(p_ble_evt);
ble_advertising_on_ble_evt(p_ble_evt);
bsp_btn_ble_on_ble_evt(p_ble_evt);
}
/**@brief Function for the SoftDevice initialization.
*
* @details This function initializes the SoftDevice and the BLE event interrupt.
*/
static void ble_stack_init(void)
{
uint32_t err_code;
nrf_clock_lf_cfg_t clock_lf_cfg = NRF_CLOCK_LFCLKSRC;
// Initialize SoftDevice.
SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL);
ble_enable_params_t ble_enable_params;
err_code = softdevice_enable_get_default_config(CENTRAL_LINK_COUNT,
PERIPHERAL_LINK_COUNT,
&ble_enable_params);
APP_ERROR_CHECK(err_code);
//Check the ram settings against the used number of links
CHECK_RAM_START_ADDR(CENTRAL_LINK_COUNT,PERIPHERAL_LINK_COUNT);
// Enable BLE stack.
#if (NRF_SD_BLE_API_VERSION == 3)
ble_enable_params.gatt_enable_params.att_mtu = NRF_BLE_MAX_MTU_SIZE;
#endif
err_code = softdevice_enable(&ble_enable_params);
APP_ERROR_CHECK(err_code);
// Subscribe for BLE events.
err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling events from the BSP module.
*
* @param[in] event Event generated by button press.
*/
void bsp_event_handler(bsp_event_t event)
{
uint32_t err_code;
switch (event)
{
case BSP_EVENT_SLEEP:
printf("Entered sleep mode ");
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();
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
}
break;
default:
break;
}
}
/**@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)
{
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 >= (BLE_NUS_MAX_DATA_LEN)))
{
printf("Data Received\r\n");
for (uint8_t i = 0; i < index; i++)
{
app_uart_put(data_array[i]);
}
err_code = ble_nus_string_send(&m_nus, data_array, index);
if (err_code != NRF_ERROR_INVALID_STATE)
{
printf("Data Error\r\n");
APP_ERROR_CHECK(err_code);
}
index = 0;
}
break;
case APP_UART_COMMUNICATION_ERROR:
printf("APP_UART_COMMUNICATION_ERROR\r\n");
APP_ERROR_HANDLER(p_event->data.error_communication);
break;
case APP_UART_FIFO_ERROR:
printf("APP_UART_FIFO_ERROR\r\n");
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_NUMBER,
TX_PIN_NUMBER,
RTS_PIN_NUMBER,
CTS_PIN_NUMBER,
APP_UART_FLOW_CONTROL_DISABLED,
false,
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 Advertising functionality.
*/
static void advertising_init(void)
{
uint32_t err_code;
ble_advdata_t advdata;
ble_advdata_t scanrsp;
ble_adv_modes_config_t options;
// Build advertising data struct to pass into @ref ble_advertising_init.
memset(&advdata, 0, sizeof(advdata));
advdata.name_type = BLE_ADVDATA_FULL_NAME;
advdata.include_appearance = false;
advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
memset(&scanrsp, 0, sizeof(scanrsp));
scanrsp.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
scanrsp.uuids_complete.p_uuids = m_adv_uuids;
memset(&options, 0, sizeof(options));
options.ble_adv_fast_enabled = true;
options.ble_adv_fast_interval = APP_ADV_INTERVAL;
options.ble_adv_fast_timeout = APP_ADV_TIMEOUT_IN_SECONDS;
err_code = ble_advertising_init(&advdata, &scanrsp, &options, on_adv_evt, NULL);
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)
{
bsp_event_t startup_event;
uint32_t err_code = bsp_init(BSP_INIT_LED | BSP_INIT_BUTTONS,
APP_TIMER_TICKS(100, APP_TIMER_PRESCALER),
bsp_event_handler);
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 placing the application in low power state while waiting for events.
*/
static void power_manage(void)
{
uint32_t err_code = sd_app_evt_wait();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initiating scanning.
*/
static void scan_start(void)
{
ret_code_t err_code;
printf("Scanning ...\r\n");
// Turn on the LED to signal scanning.
bsp_board_led_on(SCAN_LED_PIN_NO);
(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)
{
NRF_LOG_INFO("Scan Error !!!\r\n");
APP_ERROR_CHECK(err_code);
}
NRF_LOG_INFO("Scanning\r\n");
// Turn on the LED to signal scanning.
bsp_board_led_off(SCAN_LED_PIN_NO);
//nrf_gpio_pin_set(SCAN_LED_PIN_NO);
printf("Scanning done\r\n");
}
/**@brief Function for initiating advertising and scanning.
*/
static void adv_scan_start(void)
{
ret_code_t err_code;
uint32_t count;
//check if there are no flash operations in progress
err_code = fs_queued_op_count_get(&count);
APP_ERROR_CHECK(err_code);
if (count == 0)
{
// 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(SCAN_LED_PIN_NO);
// Start advertising.
err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
NRF_LOG_INFO("Advertising\r\n");
} else
{
printf("No Scanning\r\n");
}
}
/**@brief Application main function.
*/
int main(void)
{
uint32_t err_code;
bool erase_bonds;
/* Configure board. */
bsp_board_leds_init();
// Initialize.
APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);
uart_init();
buttons_leds_init(&erase_bonds);
ble_stack_init();
gap_params_init();
services_init();
advertising_init();
conn_params_init();
printf("\r\n");
printf("Button 1 for Wakeup\r\n");
printf("UART Start!\r\n");
err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
// Turn on the LED to signal scanning.
bsp_board_led_on(ASSERT_LED_PIN_NO);
//bsp_board_led_invert(i);
// Start scanning for peripherals and initiate connection
// with devices that advertise NUS UUID.
//scan_start();
//scan_all_periph();
//adv_scan_start();
scan_start();
while (true)
{
while(app_uart_get(&cr) != NRF_SUCCESS);
while(app_uart_put(cr) != NRF_SUCCESS);
if (cr == 'q' || cr == 'Q')
{
printf(" \n\rExit!\n\r");
}
while (cr != 'q' || cr != 'Q')
{
//power_manage();
//scan_start();
}
}
// Enter main loop.
//for (;;)
//{
// power_manage();
//}
}
/**
* @}
*/
