/**
* Copyright (c) 2014 - 2018, 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.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* 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 LED Button Service central and client application main file.
*
* This file contains the source code for a sample client application using the LED Button service.
*/
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "nrf_sdh.h"
#include "nrf_sdh_ble.h"
#include "nrf_sdh_soc.h"
#include "nrf_pwr_mgmt.h"
#include "app_timer.h"
#include "app_uart.h"
#include "boards.h"
#include "bsp.h"
#include "bsp_btn_ble.h"
#include "ble.h"
#include "ble_hci.h"
#include "ble_advertising.h"
#include "ble_conn_params.h"
#include "ble_db_discovery.h"
#include "ble_nus_c.h"
#include "ble_lbs_c.h"
#include "ble_image_transfer_service_c.h"
#include "nrf_ble_gatt.h"
#include "nrf_ble_scan.h"
#include "ble_conn_state.h"
#include "app_scheduler.h"
#include "channel_survey.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#include "peer_manager.h"
#include "fds.h"
//#include "fstorage.h"
#include "ble_conn_state.h"
#include "nrf_ble_gatt.h"
#include "nrf_drv_timer.h"
#include "bsp.h"
#include "nrf.h"
#define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */
#define APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shouldn't need to modify this value. */
#define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */
#define CENTRAL_SCANNING_LED BSP_BOARD_LED_0 /**< Scanning LED will be on when the device is scanning. */
#define CENTRAL_CONNECTED_LED BSP_BOARD_LED_1 /**< Connected LED will be on when the device is connected. */
#define LEDBUTTON_LED BSP_BOARD_LED_2 /**< LED to indicate a change of state of the the Button characteristic on the peer. */
#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_DURATION 0x0000 /**< Timout when scanning. 0x0000 disables timeout. */
#define MIN_CONNECTION_INTERVAL MSEC_TO_UNITS(50, UNIT_1_25_MS) /**< Determines minimum connection interval in milliseconds. */
#define MAX_CONNECTION_INTERVAL MSEC_TO_UNITS(400, 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 LEDBUTTON_BUTTON_PIN BSP_BUTTON_0 /**< Button that will write to the LED characteristic of the peer */
#define START_CHANEL_SURVERY_START_PIN BSP_BUTTON_1 /**< Button that will start the channel survery */
#define UPDATE_CHANNEL_MAP_PIN BSP_BUTTON_2 /**< Button that will stop the channel survery */
#define BUTTON_DETECTION_DELAY APP_TIMER_TICKS(50) /**< Delay from a GPIOTE event until a button is reported as pushed (in number of timer ticks). */
#define SCHED_MAX_EVENT_DATA_SIZE APP_TIMER_SCHED_EVENT_DATA_SIZE /**< Maximum size of scheduler events. */
#ifdef SVCALL_AS_NORMAL_FUNCTION
#define SCHED_QUEUE_SIZE 20 /**< Maximum number of events in the scheduler queue. More is needed in case of Serialization. */
#else
#define SCHED_QUEUE_SIZE 10 /**< Maximum number of events in the scheduler queue. */
#endif
#define ECHOBACK_BLE_UART_DATA 0 /**< Echo the UART data that is received over the Nordic UART Service (NUS) back to the sender. */
#define TX_POWER_LEVEL (8) /**< TX Power Level value. This will be set both in the TX Power service, in the advertising data, and also used to set the radio transmit power. */
#define MINIMUM_CHANNEL_SURVEY_SELECTION 15 /* Use the first number of the channel maps after channel survey */
#define BLE_UART_LIMIT 240
NRF_BLE_SCAN_DEF(m_scan); /**< Scanning module instance. */
//BLE_LBS_C_DEF(m_ble_lbs_c); /**< Main structure used by the LBS client module. */
//BLE_NUS_C_DEF(m_ble_nus_c); /**< BLE Nordic UART Service (NUS) client instance. */
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
//BLE_DB_DISCOVERY_DEF(m_db_disc); /**< DB discovery module instance. */
BLE_NUS_C_ARRAY_DEF(m_ble_nus_c, NRF_SDH_BLE_CENTRAL_LINK_COUNT);
BLE_LBS_C_ARRAY_DEF(m_ble_lbs_c, NRF_SDH_BLE_CENTRAL_LINK_COUNT); /**< LED button client instances. */
BLE_ITS_C_ARRAY_DEF(m_ble_its_c, NRF_SDH_BLE_CENTRAL_LINK_COUNT); /**< BLE Nordic Image Transfer Service (ITS) client instance. */
BLE_DB_DISCOVERY_ARRAY_DEF(m_db_disc, NRF_SDH_BLE_CENTRAL_LINK_COUNT); /**< Database discovery module instances. */
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
static uint16_t m_ble_nus_max_data_len = BLE_GATT_ATT_MTU_DEFAULT - OPCODE_LENGTH - HANDLE_LENGTH; /**< Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */
static uint16_t m_ble_its_max_data_len = BLE_GATT_ATT_MTU_DEFAULT - OPCODE_LENGTH - HANDLE_LENGTH; /**< Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */
static char const m_target_periph_name[] = "LBS_NUS_Node"; /**< Name of the device we try to connect to. This name is searched in the scan report data*/
uint8_t data_array[1024];
uint16_t uartIndex = 0;
uint16_t uartSubIdx;
uint8_t closebras[2]="\"}";
uint8_t openbras[2]="{\"";
uint8_t m_key[20] = {'D', 'I', 'G', 'A', 'N', 'T', '_', '_',
'T', 'E', 'C', 'H', 'N', 'O', 'L', 'O', 'G', 'I', 'E', 'S'};
/*******************************************************
Channel Survey testing
*******************************************************/
/**@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 the LEDs initialization.
*
* @details Initializes all LEDs used by the application.
*/
static void leds_init(void)
{
bsp_board_init(BSP_INIT_LEDS);
}
/**@brief Function to start scanning.
*/
static void scan_start(void)
{
ret_code_t err_code;
err_code = nrf_ble_scan_start(&m_scan);
APP_ERROR_CHECK(err_code);
bsp_board_led_off(CENTRAL_CONNECTED_LED);
bsp_board_led_on(CENTRAL_SCANNING_LED);
}
/**@brief Function for handling characters received by the Nordic UART Service (NUS).
*
* @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
{
if(i==0)
{
for(int i=0;i<2;i++)
{app_uart_put(openbras[i]);}
}
if((p_data[i] - m_key[i]) == ':' || (p_data[i] - m_key[i]) == ',' )
//if((p_data[i]- m_key[i]) == ':' || (p_data[i] - m_key[i]) == ',' )
{
app_uart_put('"');
ret_val = app_uart_put(p_data[i] - m_key[i]);
//ret_val = app_uart_put(p_data[i]);
app_uart_put('"');
}else{//ret_val = app_uart_put(p_data[i]);
ret_val = app_uart_put(p_data[i] - m_key[i]);}
if(i==18)
{
for(int i=0;i<2;i++)
{app_uart_put(closebras[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);
}
}
/**@brief Function for handling app_uart events.
*
* @details This function receives a single character from the app_uart module and appends it to
* a string. The string is sent over BLE when the last character received is a
* 'new line' '\n' (hex 0x0A) or if the string reaches the maximum data length.
*/
#if 0
void uart_event_handle(app_uart_evt_t * p_event)
{
static uint8_t data_array[BLE_NUS_MAX_DATA_LEN];
static uint16_t index = 0;
uint32_t ret_val;
switch (p_event->evt_type)
{
/**@snippet [Handling data from UART] */
case APP_UART_DATA_READY:
UNUSED_VARIABLE(app_uart_get(&data_array[index]));
index++;
// if ((data_array[index - 1] == '\n') || (index >0 /*= (m_ble_nus_max_data_len)*/))
// {
/* if ((data_array[index - 1] == '\n') ||
(data_array[index - 1] == '\r') ||
(index >= m_ble_nus_max_data_len))
{*/
if (index > 0)
{
NRF_LOG_DEBUG("Ready to send data over BLE NUS");
NRF_LOG_HEXDUMP_DEBUG(data_array, index);
do
{
ret_val = ble_nus_c_string_send(&m_ble_nus_c, data_array, index);
if ( (ret_val != NRF_ERROR_INVALID_STATE) && (ret_val != NRF_ERROR_RESOURCES) )
{
APP_ERROR_CHECK(ret_val);
}
} while (ret_val == NRF_ERROR_RESOURCES);
index = 0;
}
// }
break;
/**@snippet [Handling data from UART] */
case APP_UART_COMMUNICATION_ERROR:
NRF_LOG_ERROR("Communication error occurred while handling UART.");
APP_ERROR_HANDLER(p_event->data.error_communication);
break;
case APP_UART_FIFO_ERROR:
NRF_LOG_ERROR("Error occurred in FIFO module used by UART.");
APP_ERROR_HANDLER(p_event->data.error_code);
break;
default:
break;
}
}
#endif
void uart_event_handle(app_uart_evt_t * p_event)
{
switch (p_event->evt_type)
{
case APP_UART_DATA_READY:
UNUSED_VARIABLE(app_uart_get(&data_array[uartIndex]));
uartIndex++;
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 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_c_evt)
{
ret_code_t err_code;
switch (p_ble_nus_c_evt->evt_type)
{
case BLE_NUS_C_EVT_DISCOVERY_COMPLETE:
NRF_LOG_INFO("NUS Service discovered on conn_handle 0x%x",
p_ble_nus_c_evt->conn_handle);
err_code = ble_nus_c_handles_assign(p_ble_nus_c, p_ble_nus_c_evt->conn_handle, &p_ble_nus_c_evt->handles);
APP_ERROR_CHECK(err_code);
NRF_LOG_INFO("Before enable the tx notification");
NRF_LOG_HEXDUMP_DEBUG(p_ble_nus_c, sizeof(ble_nus_c_t));
err_code = ble_nus_c_tx_notif_enable(p_ble_nus_c);
APP_ERROR_CHECK(err_code);
NRF_LOG_INFO("Connected to device with Nordic UART Service.\n\n");
break;
case BLE_NUS_C_EVT_NUS_TX_EVT:
ble_nus_chars_received_uart_print(p_ble_nus_c_evt->p_data, p_ble_nus_c_evt->data_len);
break;
case BLE_NUS_C_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected.");
scan_start();
break;
}
}
/**@brief Handles events coming from the LED Button central module.
*/
static void lbs_c_evt_handler(ble_lbs_c_t * p_lbs_c, ble_lbs_c_evt_t * p_lbs_c_evt)
{
switch (p_lbs_c_evt->evt_type)
{
case BLE_LBS_C_EVT_DISCOVERY_COMPLETE:
{
ret_code_t err_code;
// err_code = ble_lbs_c_handles_assign(&m_ble_lbs_c,
// p_lbs_c_evt->conn_handle,
// &p_lbs_c_evt->params.peer_db);
NRF_LOG_INFO("LED Button service discovered on conn_handle 0x%x.", p_lbs_c_evt->conn_handle);
err_code = app_button_enable();
APP_ERROR_CHECK(err_code);
NRF_LOG_DEBUG("Enable the LBS button notification");
NRF_LOG_HEXDUMP_INFO(p_lbs_c, sizeof(ble_lbs_c_t));
// LED Button service discovered. Enable notification of Button.
err_code = ble_lbs_c_button_notif_enable(p_lbs_c);
APP_ERROR_CHECK(err_code);
} break; // BLE_LBS_C_EVT_DISCOVERY_COMPLETE
case BLE_LBS_C_EVT_BUTTON_NOTIFICATION:
{
NRF_LOG_INFO("Link 0x%x, Button state changed on peer to 0x%x",
p_lbs_c_evt->conn_handle,
p_lbs_c_evt->params.button.button_state);
// NRF_LOG_INFO("Button state changed on peer to 0x%x.", p_lbs_c_evt->params.button.button_state);
if (p_lbs_c_evt->params.button.button_state)
{
bsp_board_led_on(LEDBUTTON_LED);
}
else
{
bsp_board_led_off(LEDBUTTON_LED);
}
} break; // BLE_LBS_C_EVT_BUTTON_NOTIFICATION
default:
// No implementation needed.
break;
}
}
static void ble_its_c_evt_handler(ble_its_c_t *p_ble_its_c, ble_its_c_evt_t const *p_ble_its_evt)
{
ret_code_t err_code;
uint32_t receive_byte = 0;
switch (p_ble_its_evt->evt_type)
{
case BLE_ITS_C_EVT_DISCOVERY_COMPLETE:
NRF_LOG_INFO("ITS Service: Discovery complete.");
err_code = ble_its_c_handles_assign(p_ble_its_c, p_ble_its_evt->conn_handle, &p_ble_its_evt->handles);
APP_ERROR_CHECK(err_code);
NRF_LOG_INFO("ble_its_c_tx_notif_enable.");
err_code = ble_its_c_tx_notif_enable(p_ble_its_c);
APP_ERROR_CHECK(err_code);
NRF_LOG_INFO("ble_its_c_img_info_notif_enable.");
err_code = ble_its_c_img_info_notif_enable(p_ble_its_c);
APP_ERROR_CHECK(err_code);
NRF_LOG_INFO("Connected to device with Nordic ITS Service.");
break;
case BLE_ITS_C_EVT_ITS_RX_EVT:
NRF_LOG_INFO("BLE_ITS_C_EVT_ITS_RX_EVT");
break;
case BLE_ITS_C_EVT_ITS_TX_EVT:
NRF_LOG_DEBUG("BLE_ITS_C_EVT_ITS_TX_EVT %04d", receive_byte);
break;
case BLE_ITS_C_EVT_ITS_IMG_INFO_EVT:
NRF_LOG_DEBUG("BLE_ITS_C_EVT_ITS_IMG_INFO_EVT %04d", receive_byte);
break;
case BLE_ITS_C_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected.");
//scan_start();
break;
}
}
/**@brief Function for changing the tx power.
*/
static void tx_power_set(void)
{
ret_code_t err_code = sd_ble_gap_tx_power_set(BLE_GAP_TX_POWER_ROLE_SCAN_INIT, m_conn_handle, TX_POWER_LEVEL);
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)
{
ret_code_t err_code;
// For readability.
ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt;
switch (p_ble_evt->header.evt_id)
{
// Upon connection, check which peripheral has connected (HR or RSC), initiate DB
// discovery, update LEDs status and resume scanning if necessary. */
case BLE_GAP_EVT_CONNECTED:
{
NRF_LOG_INFO("Connection 0x%x established, starting DB discovery.",
p_gap_evt->conn_handle);
APP_ERROR_CHECK_BOOL(p_gap_evt->conn_handle < NRF_SDH_BLE_CENTRAL_LINK_COUNT);
err_code = ble_lbs_c_handles_assign(&m_ble_lbs_c[p_gap_evt->conn_handle], p_gap_evt->conn_handle, NULL);
APP_ERROR_CHECK(err_code);
err_code = ble_nus_c_handles_assign(&m_ble_nus_c[p_gap_evt->conn_handle], p_gap_evt->conn_handle, NULL);
APP_ERROR_CHECK(err_code);
err_code = ble_its_c_handles_assign(&m_ble_its_c[p_gap_evt->conn_handle], p_gap_evt->conn_handle, NULL);
APP_ERROR_CHECK(err_code);
err_code = ble_db_discovery_start(&m_db_disc[p_gap_evt->conn_handle], p_gap_evt->conn_handle);
APP_ERROR_CHECK(err_code);
// tx_power_set();
// Update LEDs status and check whether it is needed to look for more
// peripherals to connect to.
bsp_board_led_on(CENTRAL_CONNECTED_LED);
if (ble_conn_state_central_conn_count() == NRF_SDH_BLE_CENTRAL_LINK_COUNT)
{
bsp_board_led_off(CENTRAL_SCANNING_LED);
}
else
{
// Resume scanning.
bsp_board_led_on(CENTRAL_SCANNING_LED);
scan_start();
}
}
break;
// Upon disconnection, reset the connection handle of the peer which disconnected, update
// the LEDs status and start scanning again.
case BLE_GAP_EVT_DISCONNECTED:
{
NRF_LOG_INFO("LBS central link 0x%x disconnected (reason: 0x%x)",
p_gap_evt->conn_handle,
p_gap_evt->params.disconnected.reason);
if (ble_conn_state_central_conn_count() == 0)
{
err_code = app_button_disable();
APP_ERROR_CHECK(err_code);
// Turn off the LED that indicates the connection.
bsp_board_led_off(CENTRAL_CONNECTED_LED);
}
scan_start();
} break;
case BLE_GAP_EVT_TIMEOUT:
{
// We have not specified a timeout for scanning, so only connection attemps can timeout.
if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_CONN)
{
NRF_LOG_DEBUG("Connection request timed out.");
}
} break;
case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST:
{
// Accept 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;
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_QOS_CHANNEL_SURVEY_REPORT:
channel_survey_get_report_event(&p_ble_evt->evt.gap_evt.params.qos_channel_survey_report);
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for initializing the UART. */
static void uart_init(void)
{
ret_code_t err_code;
app_uart_comm_params_t const 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_Baud9600
};
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);
}
/**@brief Function for initializing the Nordic UART Service (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;
for (uint32_t i = 0; i < NRF_SDH_BLE_CENTRAL_LINK_COUNT; i++)
{
err_code = ble_nus_c_init(&m_ble_nus_c[i], &init);
APP_ERROR_CHECK(err_code);
}
}
/**@brief LED Button client initialization.
*/
static void lbs_c_init(void)
{
ret_code_t err_code;
ble_lbs_c_init_t lbs_c_init_obj;
lbs_c_init_obj.evt_handler = lbs_c_evt_handler;
for (uint32_t i = 0; i < NRF_SDH_BLE_CENTRAL_LINK_COUNT; i++)
{
err_code = ble_lbs_c_init(&m_ble_lbs_c[i], &lbs_c_init_obj);
APP_ERROR_CHECK(err_code);
}
// err_code = ble_lbs_c_init(&m_ble_lbs_c, &lbs_c_init_obj);
// APP_ERROR_CHECK(err_code);
}
static void its_c_init(void)
{
ret_code_t err_code;
ble_its_c_init_t its_init;
its_init.evt_handler = ble_its_c_evt_handler;
for (uint32_t i = 0; i < NRF_SDH_BLE_CENTRAL_LINK_COUNT; i++)
{
err_code = ble_its_c_init(&m_ble_its_c[i], &its_init);
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);
ble_cfg_t ble_cfg;
// Configure the GATTS attribute table.
memset(&ble_cfg, 0x00, sizeof(ble_cfg));
ble_cfg.gap_cfg.role_count_cfg.periph_role_count = NRF_SDH_BLE_PERIPHERAL_LINK_COUNT;
ble_cfg.gap_cfg.role_count_cfg.central_role_count = NRF_SDH_BLE_CENTRAL_LINK_COUNT;
ble_cfg.gap_cfg.role_count_cfg.qos_channel_survey_role_available = true; /* Enable channel survey role */
err_code = sd_ble_cfg_set(BLE_GAP_CFG_ROLE_COUNT, &ble_cfg, &ram_start);
if (err_code != NRF_SUCCESS)
{
NRF_LOG_ERROR("sd_ble_cfg_set() returned %s when attempting to set BLE_GAP_CFG_ROLE_COUNT.",
nrf_strerror_get(err_code));
}
// Enable BLE stack.
err_code = nrf_sdh_ble_enable(&ram_start);
APP_ERROR_CHECK(err_code);
err_code = sd_power_mode_set(NRF_POWER_MODE_LOWPWR);
APP_ERROR_CHECK(err_code);
err_code = sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE);
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 writing to the LED characteristic of all connected clients.
*
* @details Based on whether the button is pressed or released, this function writes a high or low
* LED status to the server.
*
* @param[in] button_action The button action (press or release).
* Determines whether the LEDs of the servers are ON or OFF.
*
* @return If successful, NRF_SUCCESS is returned. Otherwise, returns the error code from @ref ble_lbs_led_status_send.
*/
static ret_code_t led_status_send_to_all(uint8_t button_action)
{
ret_code_t err_code;
for (uint32_t i = 0; i< NRF_SDH_BLE_CENTRAL_LINK_COUNT; i++)
{
err_code = ble_lbs_led_status_send(&m_ble_lbs_c[i], button_action);
if (err_code != NRF_SUCCESS &&
err_code != BLE_ERROR_INVALID_CONN_HANDLE &&
err_code != NRF_ERROR_INVALID_STATE)
{
return err_code;
}
}
return NRF_SUCCESS;
}
/**@brief Function for handling events from the button handler module.
*
* @param[in] pin_no The pin that the event applies to.
* @param[in] button_action The button action (press/release).
*/
static void button_event_handler(uint8_t pin_no, uint8_t button_action)
{
ret_code_t err_code;
switch (pin_no)
{
case LEDBUTTON_BUTTON_PIN:
// err_code = ble_lbs_led_status_send(&m_ble_lbs_c, button_action);
// if (err_code != NRF_SUCCESS &&
// err_code != BLE_ERROR_INVALID_CONN_HANDLE &&
// err_code != NRF_ERROR_INVALID_STATE)
// {
// APP_ERROR_CHECK(err_code);
// }
// if (err_code == NRF_SUCCESS)
// {
// NRF_LOG_INFO("LBS write LED state %d", button_action);
// }
err_code = led_status_send_to_all(button_action);
if (err_code == NRF_SUCCESS)
{
NRF_LOG_INFO("LBS write LED state %d", button_action);
}
break;
// case START_CHANEL_SURVERY_START_PIN:
// if (button_action == APP_BUTTON_PUSH)
// {
// NRF_LOG_INFO("Press the button to start the channel survey");
// err_code = connection_channel_survey_start();
// APP_ERROR_CHECK(err_code);
// }
// break;
//
// case UPDATE_CHANNEL_MAP_PIN:
// if (button_action == APP_BUTTON_PUSH)
// {
// if (get_channel_map_status())
// {
// channel_map_request_update(m_conn_handle, MINIMUM_CHANNEL_SURVEY_SELECTION);
// }
// }
// break;
default:
APP_ERROR_HANDLER(pin_no);
break;
}
}
/**@brief Function for handling Scaning events.
*
* @param[in] p_scan_evt Scanning event.
*/
static void scan_evt_handler(scan_evt_t const * p_scan_evt)
{
ret_code_t err_code;
switch(p_scan_evt->scan_evt_id)
{
case NRF_BLE_SCAN_EVT_CONNECTING_ERROR:
err_code = p_scan_evt->params.connecting_err.err_code;
APP_ERROR_CHECK(err_code);
break;
case NRF_BLE_SCAN_EVT_CONNECTED:
{
ble_gap_evt_connected_t const * p_connected =
p_scan_evt->params.connected.p_connected;
// Scan is automatically stopped by the connection.
NRF_LOG_INFO("Connecting to target 0x%02x%02x%02x%02x%02x%02x",
p_connected->peer_addr.addr[0],
p_connected->peer_addr.addr[1],
p_connected->peer_addr.addr[2],
p_connected->peer_addr.addr[3],
p_connected->peer_addr.addr[4],
p_connected->peer_addr.addr[5]
);
} break;
case NRF_BLE_SCAN_EVT_SCAN_TIMEOUT:
{
NRF_LOG_INFO("Scan timed out.");
scan_start();
} break;
default:
break;
}
}
/**@brief Function for initializing the button handler module.
*/
static void buttons_init(void)
{
ret_code_t err_code;
//The array must be static because a pointer to it will be saved in the button handler module.
static app_button_cfg_t buttons[] =
{
{LEDBUTTON_BUTTON_PIN, false, BUTTON_PULL, button_event_handler},
// {START_CHANEL_SURVERY_START_PIN, false, BUTTON_PULL, button_event_handler},
// {UPDATE_CHANNEL_MAP_PIN, false, BUTTON_PULL, button_event_handler},
};
err_code = app_button_init(buttons, ARRAY_SIZE(buttons),
BUTTON_DETECTION_DELAY);
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_lbs_on_db_disc_evt(&m_ble_lbs_c, p_evt);
// ble_nus_c_on_db_disc_evt(&m_ble_nus_c, p_evt);
NRF_LOG_DEBUG("call to ble_lbs_on_db_disc_evt for instance %d and link 0x%x!",
p_evt->conn_handle,
p_evt->conn_handle);
ble_nus_c_on_db_disc_evt(&m_ble_nus_c[p_evt->conn_handle], p_evt);
ble_lbs_on_db_disc_evt(&m_ble_lbs_c[p_evt->conn_handle], p_evt);
ble_its_c_on_db_disc_evt(&m_ble_its_c[p_evt->conn_handle], p_evt);
}
/**@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 initializing the log.
*/
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 for initializing the Power manager. */
static void power_management_init(void)
{
ret_code_t err_code;
err_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(err_code);
}
static void scan_init(void)
{
ret_code_t err_code;
nrf_ble_scan_init_t init_scan;
memset(&init_scan, 0, sizeof(init_scan));
init_scan.connect_if_match = true;
init_scan.conn_cfg_tag = APP_BLE_CONN_CFG_TAG;
err_code = nrf_ble_scan_init(&m_scan, &init_scan, scan_evt_handler);
APP_ERROR_CHECK(err_code);
// Setting filters for scanning.
err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_NAME_FILTER, false);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filter_set(&m_scan, SCAN_NAME_FILTER, m_target_periph_name);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling events from the GATT library. */
void gatt_evt_handler(nrf_ble_gatt_t * p_gatt, nrf_ble_gatt_evt_t const * p_evt)
{
if (p_evt->evt_id == NRF_BLE_GATT_EVT_ATT_MTU_UPDATED)
{
NRF_LOG_INFO("ATT MTU exchange completed.");
m_ble_nus_max_data_len = p_evt->params.att_mtu_effective - OPCODE_LENGTH - HANDLE_LENGTH;
NRF_LOG_INFO("Ble NUS max data length set to 0x%X(%d)", m_ble_nus_max_data_len, m_ble_nus_max_data_len);
}
else if (p_evt->evt_id == NRF_BLE_GATT_EVT_DATA_LENGTH_UPDATED)
{
NRF_LOG_INFO("Data length updated to %u bytes.", p_evt->params.data_length);
}
}
/**@brief Function for initializing the GATT module.
*/
static void gatt_init(void)
{
ret_code_t err_code;
err_code = nrf_ble_gatt_init(&m_gatt, gatt_evt_handler);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_gatt_att_mtu_central_set(&m_gatt, NRF_SDH_BLE_GATT_MAX_MTU_SIZE);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_gatt_data_length_set(&m_gatt, BLE_CONN_HANDLE_INVALID, NRF_SDH_BLE_GAP_DATA_LENGTH);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the idle state (main loop).
*
* @details Handle any pending log operation(s), then sleep until the next event occurs.
*/
static void idle_state_handle(void)
{
app_sched_execute();
if (NRF_LOG_PROCESS() == false)
{
nrf_pwr_mgmt_run();
}
}
/**@brief Function for the Event Scheduler initialization.
*/
static void scheduler_init(void)
{
APP_SCHED_INIT(SCHED_MAX_EVENT_DATA_SIZE, SCHED_QUEUE_SIZE);
}
void Delay(uint16_t count)
{
uint16_t ii,jj;
for(ii=0;ii<count;ii++)
for(jj=0;jj<10000;jj++);
}
int main(void)
{
ret_code_t err_code;
uint16_t length;
// Initialize.
log_init();
uart_init();
timer_init();
leds_init();
buttons_init();
power_management_init();
ble_stack_init();
scheduler_init();
scan_init();
gatt_init();
db_discovery_init();
lbs_c_init();
nus_c_init();
its_c_init();
tx_power_set();
// Start execution.
NRF_LOG_INFO("Example : Multi-link Central LBS + NUS");
printf("Example");
scan_start();
err_code = app_button_enable();
APP_ERROR_CHECK(err_code);
#if 0
// Enter main loop.
for (;;)
{
idle_state_handle();
}
#endif
for (;;) {
idle_state_handle();
if(uartIndex != 0) {
Delay(80); // delay to capture all byte about 1K
NRF_LOG_DEBUG("Ready to send data over BLE NUS");
NRF_LOG_HEXDUMP_DEBUG(data_array, uartIndex);
uartSubIdx =0;
do {
do {
if(uartIndex < BLE_UART_LIMIT) length = (uint16_t)uartIndex;
else length = BLE_UART_LIMIT;
//err_code = ble_nus_data_send(&m_nus, &data_array[uartSubIdx], &length, m_conn_handle);
for (uint32_t i = 0; i< NRF_SDH_BLE_CENTRAL_LINK_COUNT; i++)
{
err_code = ble_nus_c_string_send(&m_ble_nus_c[i],&data_array[uartSubIdx], length);
}
if ((err_code != NRF_ERROR_INVALID_STATE) &&
(err_code != NRF_ERROR_RESOURCES) &&
(err_code != NRF_ERROR_NOT_FOUND)) {
APP_ERROR_CHECK(err_code);
}
} while (err_code == NRF_ERROR_RESOURCES);
if(uartIndex < BLE_UART_LIMIT) uartIndex = 0;
else {
uartIndex = uartIndex - BLE_UART_LIMIT;
uartSubIdx = uartSubIdx + BLE_UART_LIMIT;
}
} while (uartIndex > 0);
}
uartIndex = 0;
}
}
hi,
Currently we have 18 peripherals sending data to one central in multi
link network with a time interval of 1 minute which is hard coded in
all the peripherals.
As per our requirement, peripheral time interval should be
individually configurable in a network through central.For example we
have peripheral A and peripheral B nodes.Both the nodes are sending
the data with time interval of 1 minute. We would want to change the
time interval of peripheral B only to 2 minutes through a central
device.
Now we are able to configure the time interval in all the peripherals
present in the network at one shot through central device but we are
not able to configure the individual peripheral device in the network.
Regards,
jagadeesh
