i can create three service each with one notifiable characteristic. i am using nrf connect to test if it is work and i am able to send data through UART Rx and then enabled all the notifiable characteristics of each services. and I am able to read fro and send data to my device. but when i use my android to send and read data it is not working. On my Android i am able to retrieve all the characteristics and services at onServicesDiscovered(BluetoothGatt gatt, int status). But it is not read the values although all the connection works good.
I used the nRF5_SDK_15.2.0_9412b96\examples\ble_peripheral\ble_app_uart\pca10056\s140\ses Just add two more service with a notifiable characteristics. and I use Android-nRF-UART-master example from the git-hub for my android code. here is my Android code for the UartService .
/*
* Copyright (c) 2015, Nordic Semiconductor
* 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 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 the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER 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.
*/
package com.multicharacter.UART;
import android.app.Service;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCallback;
import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattDescriptor;
import android.bluetooth.BluetoothGattService;
import android.bluetooth.BluetoothManager;
import android.bluetooth.BluetoothProfile;
import android.content.Context;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.support.v4.content.LocalBroadcastManager;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
/**
* Service for managing connection and data communication with a GATT server hosted on a
* given Bluetooth LE device.
*/
public class UartService extends Service {
private final static String TAG = UartService.class.getSimpleName();
private BluetoothManager mBluetoothManager;
private BluetoothAdapter mBluetoothAdapter;
private String mBluetoothDeviceAddress;
private BluetoothGatt mBluetoothGatt;
public final static String ACTION_GATT_CONNECTED =
"com.nordicsemi.nrfUART.ACTION_GATT_CONNECTED";
public final static String ACTION_GATT_DISCONNECTED =
"com.nordicsemi.nrfUART.ACTION_GATT_DISCONNECTED";
public final static String ACTION_GATT_SERVICES_DISCOVERED =
"com.nordicsemi.nrfUART.ACTION_GATT_SERVICES_DISCOVERED";
public final static String ACTION_DATA_AVAILABLE =
"com.nordicsemi.nrfUART.ACTION_DATA_AVAILABLE";
public final static String EXTRA_DATA =
"com.nordicsemi.nrfUART.EXTRA_DATA";
public final static String DEVICE_DOES_NOT_SUPPORT_UART =
"com.nordicsemi.nrfUART.DEVICE_DOES_NOT_SUPPORT_UART";
public static final UUID CCCD = UUID.fromString("00002902-0000-1000-8000-00805f9b34fb");
public static final UUID RX_SERVICE_UUID = UUID.fromString("6e400001-b5a3-f393-e0a9-e50e24dcca9e");
public static final UUID RX_CHAR_UUID = UUID.fromString("6e400002-b5a3-f393-e0a9-e50e24dcca9e");
public static final UUID TX_CHAR_UUID = UUID.fromString("6e400003-b5a3-f393-e0a9-e50e24dcca9e");
/*---------------------------------------------------------------------------------------------------------------*/
public static final UUID RX_SERVICE_2_UUID = UUID.fromString("6e401001-b5a3-f393-e0a9-e50e24dcca9e");
public static final UUID RX_SERVICE_3_UUID = UUID.fromString("6e400000-b5a3-f393-e0a9-e50e24dcca9e");
public static final UUID service_2_CHAR_UUID = UUID.fromString("6e401003-b5a3-f393-e0a9-e50e24dcca9e");
public static final UUID service_3_CHAR_UUID = UUID.fromString("6e402004-b5a3-f393-e0a9-e50e24dcca9e");
/*---------------------------------------------------------------------------------------------------------------------------*/
List<BluetoothGattCharacteristic> chars = new ArrayList<>();
private int ReadQueueIndex;
// Implements callback methods for GATT events that the app cares about. For example,
// connection change and services discovered.
private final BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
String intentAction;
if (newState == BluetoothProfile.STATE_CONNECTED) {
intentAction = ACTION_GATT_CONNECTED;
broadcastUpdate(intentAction);
Log.i(TAG, "Connected to GATT server.");
// Attempts to discover services after successful connection.
Log.i(TAG, "Attempting to start service discovery:" +
mBluetoothGatt.discoverServices());
} else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
intentAction = ACTION_GATT_DISCONNECTED;
Log.i(TAG, "Disconnected from GATT server.");
broadcastUpdate(intentAction);
}
}
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
int x = 0;
if (status == BluetoothGatt.GATT_SUCCESS) {
Log.w(TAG, "mBluetoothGatt = " + mBluetoothGatt );
List<BluetoothGattService> services = gatt.getServices();
Log.e("onServicesDiscovered", services.toString());
for (int i = 0; i < services.size(); i++){
if(services.get(i).getUuid().toString().contains("6e400001")){
for(int j = 0; j < services.get(i).getCharacteristics().size(); j++){
if(services.get(i).getCharacteristics().get(j).getUuid().toString().contains("6e400003")){
String Characte = services.get(i).getCharacteristics().get(j).getUuid().toString();
Log.w(TAG, "first character: " + " UUID " + Characte );
chars.add(services.get(i).getCharacteristics().get(j));
}
}
}
else if(services.get(i).getUuid().toString().contains("6e401001")){
for(int j = 0; j < services.get(i).getCharacteristics().size(); j++){
if(services.get(i).getCharacteristics().get(j).getUuid().toString().contains("6e401003")){
String Characte2 = services.get(i).getCharacteristics().get(j).getUuid().toString();
Log.w(TAG, "second character: " + " UUID " + Characte2 );
chars.add(services.get(i).getCharacteristics().get(j));
}
}
}
else if(services.get(i).getUuid().toString().contains("6e400000")){
for(int j = 0; j < services.get(i).getCharacteristics().size(); j++){
if(services.get(i).getCharacteristics().get(j).getUuid().toString().contains("6e402004")){
String Characte3 = services.get(i).getCharacteristics().get(j).getUuid().toString();
Log.w(TAG, "first character: " + " UUID " + Characte3 );
chars.add(services.get(i).getCharacteristics().get(j));
}
}
}
/* x = x + 1;
String ser_num = String.valueOf(x);
String mCurrentService = srv.getUuid().toString();
Log.w(TAG, "onserviceRead: " + " UUID " + mCurrentService + "number" + ser_num);
List<BluetoothGattCharacteristic> mListCars = srv.getCharacteristics();
int num_char = mListCars.size();
Log.i(TAG, String.valueOf(num_char));
for(BluetoothGattCharacteristic bc : mListCars){
String mCurrentchar = bc.getUuid().toString();
Log.e(TAG, "onCharacteristicRead: " + " UUID " + mCurrentchar );
gatt.readCharacteristic(srv.getCharacteristic(bc.getUuid()));
}*/
}
ReadQueueIndex = chars.size() - 1;
requestCharacteristics(0);
broadcastUpdate(ACTION_GATT_SERVICES_DISCOVERED);
} else {
Log.w(TAG, "onServicesDiscovered received: " + status);
}
}
public void requestCharacteristics(int index) {
Log.w(TAG, "I am Reading: " + "" + chars.get(index).getUuid().toString());
mBluetoothGatt.readCharacteristic(chars.get(index));
}
@Override
public void onCharacteristicRead(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic,
int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
broadcastUpdate(characteristic);
}
}
@Override
public void onCharacteristicChanged(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic) {
String value = characteristic.getStringValue(0);
Log.e(TAG, "I am OnReading: " + "" + characteristic.getUuid().toString());
broadcastUpdate(characteristic);
chars.remove(chars.get(ReadQueueIndex));
if (chars.size() < chars.size()) {
ReadQueueIndex++;
if (ReadQueueIndex == -1) {
Log.i("Read Queue: ", "Complete");
}
else {
requestCharacteristics(ReadQueueIndex);
}
}
}
};
private void broadcastUpdate(final String action) {
final Intent intent = new Intent(action);
LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
}
private void broadcastUpdate(final BluetoothGattCharacteristic characteristic) {
final Intent intent = new Intent(ACTION_DATA_AVAILABLE);
// This is handling for the notification on TX Character of NUS service
if ((TX_CHAR_UUID.equals(characteristic.getUuid())) && (characteristic.getValue() != null) ) {
//Log.d(TAG, String.format("Received TX: %d",characteristic.getValue() ));
intent.putExtra(EXTRA_DATA, characteristic.getValue());
LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
}
else if ((service_2_CHAR_UUID.equals(characteristic.getUuid())) && (characteristic.getValue() != null)) {
//Log.d(TAG, String.format("Received TX: %d",characteristic.getValue() ));
intent.putExtra(EXTRA_DATA, characteristic.getValue());
LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
}
if ((service_3_CHAR_UUID.equals(characteristic.getUuid())) && (characteristic.getValue() != null) ) {
//Log.d(TAG, String.format("Received TX: %d",characteristic.getValue() ));
intent.putExtra(EXTRA_DATA, characteristic.getValue());
LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
}
}
/*-----------------------------------------------------------------------------------------------------------------------------*/
public class LocalBinder extends Binder {
UartService getService() {
return UartService.this;
}
}
@Override
public IBinder onBind(Intent intent) {
return mBinder;
}
@Override
public boolean onUnbind(Intent intent) {
// After using a given device, you should make sure that BluetoothGatt.close() is called
// such that resources are cleaned up properly. In this particular example, close() is
// invoked when the UI is disconnected from the Service.
close();
return super.onUnbind(intent);
}
private final IBinder mBinder = new LocalBinder();
/**
* Initializes a reference to the local Bluetooth adapter.
*
* @return Return true if the initialization is successful.
*/
public boolean initialize() {
// For API level 18 and above, get a reference to BluetoothAdapter through
// BluetoothManager.
if (mBluetoothManager == null) {
mBluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
if (mBluetoothManager == null) {
Log.e(TAG, "Unable to initialize BluetoothManager.");
return false;
}
}
mBluetoothAdapter = mBluetoothManager.getAdapter();
if (mBluetoothAdapter == null) {
Log.e(TAG, "Unable to obtain a BluetoothAdapter.");
return false;
}
return true;
}
/**
* Connects to the GATT server hosted on the Bluetooth LE device.
*
* @param address The device address of the destination device.
*/
public void connect(final String address) {
if (mBluetoothAdapter == null || address == null) {
Log.w(TAG, "BluetoothAdapter not initialized or unspecified address.");
return;
}
// Previously connected device. Try to reconnect.
if (address.equals(mBluetoothDeviceAddress)
&& mBluetoothGatt != null) {
Log.d(TAG, "Trying to use an existing mBluetoothGatt for connection.");
if (mBluetoothGatt.connect()) {
return;
} else {
return;
}
}
final BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
if (device == null) {
Log.w(TAG, "Device not found. Unable to connect.");
return;
}
// We want to directly connect to the device, so we are setting the autoConnect
// parameter to false.
mBluetoothGatt = device.connectGatt(this, false, mGattCallback);
Log.d(TAG, "Trying to create a new connection.");
mBluetoothDeviceAddress = address;
}
/**
* Disconnects an existing connection or cancel a pending connection. The disconnection result
* is reported asynchronously through the
* {@code BluetoothGattCallback#onConnectionStateChange(android.bluetooth.BluetoothGatt, int, int)}
* callback.
*/
public void disconnect() {
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.disconnect();
// mBluetoothGatt.close();
}
/**
* After using a given BLE device, the app must call this method to ensure resources are
* released properly.
*/
public void close() {
if (mBluetoothGatt == null) {
return;
}
Log.w(TAG, "mBluetoothGatt closed");
mBluetoothDeviceAddress = null;
mBluetoothGatt.close();
mBluetoothGatt = null;
}
/**
* Enable Notification on TX characteristic
*/
public void enableTXNotification()
{
/*
if (mBluetoothGatt == null) {
showMessage("mBluetoothGatt null" + mBluetoothGatt);
broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
return;
}
*/
BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_UUID);
if (RxService == null) {
showMessage("Rx service not found!");
broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
return;
}
BluetoothGattCharacteristic TxChar = RxService.getCharacteristic(TX_CHAR_UUID);
if (TxChar == null) {
showMessage("Tx charateristic not found!");
broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
return;
}
mBluetoothGatt.setCharacteristicNotification(TxChar,true);
BluetoothGattDescriptor descriptor = TxChar.getDescriptor(CCCD);
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
}
/*---------------------------------------------------------------------------------------------------------------*/
public void enableTXNotification_2()
{
/*
if (mBluetoothGatt == null) {
showMessage("mBluetoothGatt null" + mBluetoothGatt);
broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
return;
}
*/
BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_2_UUID);
if (RxService == null) {
showMessage("Rx service not found!");
broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
return;
}
BluetoothGattCharacteristic TxChar = RxService.getCharacteristic(service_2_CHAR_UUID);
if (TxChar == null) {
showMessage("Tx charateristic not found!");
broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
return;
}
mBluetoothGatt.setCharacteristicNotification(TxChar,true);
BluetoothGattDescriptor descriptor = TxChar.getDescriptor(CCCD);
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
}
/*---------------------------------------------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------------------------------------------*/
public void enableTXNotification_3()
{
/*
if (mBluetoothGatt == null) {
showMessage("mBluetoothGatt null" + mBluetoothGatt);
broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
return;
}
*/
BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_3_UUID);
if (RxService == null) {
showMessage("Rx service not found!");
broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
return;
}
BluetoothGattCharacteristic TxChar = RxService.getCharacteristic(service_3_CHAR_UUID);
if (TxChar == null) {
showMessage("Tx charateristic not found!");
broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
return;
}
mBluetoothGatt.setCharacteristicNotification(TxChar,true);
BluetoothGattDescriptor descriptor = TxChar.getDescriptor(CCCD);
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
}
/*---------------------------------------------------------------------------------------------------------------*/
public void writeRXCharacteristic(byte[] value)
{
BluetoothGattService RxService = mBluetoothGatt.getService(RX_SERVICE_UUID);
showMessage("mBluetoothGatt null"+ mBluetoothGatt);
if (RxService == null) {
showMessage("Rx service not found!");
broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
return;
}
BluetoothGattCharacteristic RxChar = RxService.getCharacteristic(RX_CHAR_UUID);
if (RxChar == null) {
showMessage("Rx charateristic not found!");
broadcastUpdate(DEVICE_DOES_NOT_SUPPORT_UART);
return;
}
RxChar.setValue(value);
boolean status = mBluetoothGatt.writeCharacteristic(RxChar);
Log.d(TAG, "write TXchar - status=" + status);
}
private void showMessage(String msg) {
Log.e(TAG, msg);
}
}
My NRF52840 main.c
/**
* 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.
*
*/
/** @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 <stdio.h>
#include <stdint.h>
#include <string.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 "nrf_sdh.h"
#include "nrf_sdh_soc.h"
#include "nrf_sdh_ble.h"
#include "nrf_ble_gatt.h"
#include "nrf_ble_qwr.h"
#include "app_timer.h"
#include "ble_nus.h"
#include "app_uart.h"
#include "app_util_platform.h"
#include "bsp_btn_ble.h"
#include "nrf_pwr_mgmt.h"
#if defined (UART_PRESENT)
#include "nrf_uart.h"
#endif
#if defined (UARTE_PRESENT)
#include "nrf_uarte.h"
#endif
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */
#define DEVICE_NAME "CYNCH Connect" /**< 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_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shouldn't need to modify this value. */
#define APP_ADV_INTERVAL 64 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 40 ms). */
#define APP_ADV_DURATION 18000 /**< The advertising duration (180 seconds) in units of 10 milliseconds. */
#define MIN_CONN_INTERVAL MSEC_TO_UNITS(7.5, UNIT_1_25_MS) /**< Minimum acceptable connection interval (20 ms), Connection interval uses 1.25 ms units. */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(100, 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) /**< 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 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 2048 /**< UART RX buffer size. */
BLE_NUS_DEF(m_nus, NRF_SDH_BLE_TOTAL_LINK_COUNT); /**< BLE NUS service instance. */
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
NRF_BLE_QWR_DEF(m_qwr); /**< Context for the Queued Write module.*/
BLE_ADVERTISING_DEF(m_advertising); /**< Advertising module instance. */
static bool isConnected = false;
static char lastCommand[256];
//static char command_line[256];
static const uint8_t version[] = "EVENTS"; //what does this do??? this looks weird....idk...I'm only a dumb computer
static const uint8_t report[] = "VERSION";
static bool second_ser = false;
static bool third_ser = false;
static bool Report_control = false;
static bool Version_control = false;
static bool first_ser = false;
//string data;
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 - 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 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 initializing the timer module.
*/
static void timers_init(void)
{
ret_code_t err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
}
/**@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 Queued Write Module errors.
*
* @details A pointer to this function will be passed to each service which may need to inform the
* application about an error.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void nrf_qwr_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for 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_evt Nordic UART Service event.
*/
/**@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) && (isConnected))
{
Report_control = false;
Version_control = false;
if(p_evt->params.rx_data.length > 2)
{
NRF_LOG_INFO(" first character should st");
first_ser = true;
third_ser =false;
second_ser = false;
uint32_t err_code;
memset (lastCommand, 0, 256);
strncpy (lastCommand, (char *) p_evt->params.rx_data.p_data, p_evt->params.rx_data.length);
// printf("%s\r\n", lastCommand);
//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]);
NRF_LOG_INFO("Data len is set to 0x%X(%d)", p_evt->params.rx_data.p_data[i],p_evt->params.rx_data.length);
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);
}
while (app_uart_put('\r') == NRF_ERROR_BUSY);
}
}
/*----------------------------------------------------------------------------------------------------------------*/
if ( ((p_evt->type == BLE_NUS_EVT_COMM_STARTED) && (isConnected)) || (Version_control))
{
NRF_LOG_INFO(" second character should st");
second_ser = true;
third_ser = false;
first_ser = false;
Report_control = false;
Version_control = false;
size_t length = sizeof(version) / sizeof(version[0]);
int i;
uint32_t err_code;
memset (lastCommand, 0, 256);
strncpy (lastCommand, (char *) version,length-1);
for (i = 0; i < length-1; i++)
{
do
{
err_code = app_uart_put(version[i]);
NRF_LOG_INFO("Data ver is set to 0x%X(%d)", version[i],length-1);
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);
}
while (app_uart_put('\r') == NRF_ERROR_BUSY);
}
/*---------------------------------------------------------------------------------------------------------------*/
if ((isConnected) && (Report_control))
{
third_ser = true;
first_ser = false;
second_ser = false;
Report_control = false;
size_t length = sizeof(report) / sizeof(report[0]);
int i;
uint32_t err_code;
memset (lastCommand, 0, 256);
strncpy (lastCommand, (char *) report,length-1);
for (i = 0; i < length-1; i++)
{
do
{
err_code = app_uart_put(report[i]);
NRF_LOG_INFO("Data ver is set to 0x%X(%d)", report[i],length-1);
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);
}
while (app_uart_put('\r') == NRF_ERROR_BUSY);
}
/*---------------------------------------------------------------------------------------------------------------*/
}
/*static void command_send(ble_nus_evt_t * p_evt)
{
static const uint8_t s[] = "VERSION";
size_t length = sizeof(s) / sizeof(s[0]);
int i;
if (isConnected)
{
uint32_t err_code;
//memset (command_line, 0, 256);
//strncpy (command_line,s.c_str,sizeof(command_line));
// printf("%s\r\n", lastCommand);
//NRF_LOG_HEXDUMP_DEBUG(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length);
for (i = 0; i < length; i++)
{
do
{
err_code = app_uart_put(s[i]);
NRF_LOG_INFO("Data ver is set to 0x%X(%d)", s[i],length);
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);
}
while (app_uart_put('\r') == NRF_ERROR_BUSY);
}
}
/*----------------------------------------------------------------------------------------*/
/**@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;
uint32_t err_code_2;
ble_nus_init_t nus_init;
nrf_ble_qwr_init_t qwr_init = {0};
//ble_nus_init_2(&m_nus);
// ble_nus_init_3(&m_nus);
// Initialize Queued Write Module.
qwr_init.error_handler = nrf_qwr_error_handler;
err_code = nrf_ble_qwr_init(&m_qwr, &qwr_init);
APP_ERROR_CHECK(err_code);
// Initialize NUS.
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);
err_code = ble_nus_init_2(&m_nus, &nus_init);
APP_ERROR_CHECK(err_code);
err_code = ble_nus_init_3(&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 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)
{
uint32_t err_code;
switch (p_ble_evt->header.evt_id)
{
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;
err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
APP_ERROR_CHECK(err_code);
isConnected = true;
break;
case BLE_GAP_EVT_DISCONNECTED:
// LED indication will be changed when advertising starts.
printf ("report 0\r");
m_conn_handle = BLE_CONN_HANDLE_INVALID;
isConnected = false;
break;
case BLE_GAP_EVT_PHY_UPDATE_REQUEST:
{
// printf("PHY update request.\r\n");
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_GAP_EVT_SEC_PARAMS_REQUEST:
// Pairing not supported
// printf ("Params request\r\n");
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_GATTS_EVT_SYS_ATTR_MISSING:
// printf ("Attribute missing\r\n");
// 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:
// printf ("Character timeout\r\n");
// 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:
// printf ("Service timeout\r\n");
// 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;
default:
// No implementation needed.
break;
}
}
/**@brief Function for the SoftDevice initialization.
*
* @details This function initializes the SoftDevice and the BLE event interrupt.
*/
static void ble_stack_init(void)
{
ret_code_t err_code;
err_code = nrf_sdh_enable_request();
APP_ERROR_CHECK(err_code);
// Configure the BLE stack using the default settings.
// Fetch the start address of the application RAM.
uint32_t ram_start = 0;
err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start);
APP_ERROR_CHECK(err_code);
// Enable BLE stack.
err_code = nrf_sdh_ble_enable(&ram_start);
APP_ERROR_CHECK(err_code);
// Register a handler for BLE events.
NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
}
/**@brief Function for handling events from the GATT library. */
void gatt_evt_handler(nrf_ble_gatt_t * p_gatt, nrf_ble_gatt_evt_t const * p_evt)
{
if ((m_conn_handle == p_evt->conn_handle) && (p_evt->evt_id == NRF_BLE_GATT_EVT_ATT_MTU_UPDATED))
{
m_ble_nus_max_data_len = p_evt->params.att_mtu_effective - OPCODE_LENGTH - HANDLE_LENGTH;
NRF_LOG_INFO("Data len is set to 0x%X(%d)", m_ble_nus_max_data_len, m_ble_nus_max_data_len);
}
// printf("ATT MTU exchange completed. central 0x%x peripheral 0x%x\r\n",
// p_gatt->att_mtu_desired_central,
// p_gatt->att_mtu_desired_periph);
}
/**@brief Function for initializing the GATT library. */
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_periph_set(&m_gatt, NRF_SDH_BLE_GATT_MAX_MTU_SIZE);
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:
sleep_mode_enter();
break;
case BSP_EVENT_DISCONNECT:
err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
break;
case BSP_EVENT_WHITELIST_OFF:
if (m_conn_handle == BLE_CONN_HANDLE_INVALID)
{
err_code = ble_advertising_restart_without_whitelist(&m_advertising);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
}
break;
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' '\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 ((isConnected) && ((data_array[index - 1] == '\n') ||
(data_array[index - 1] == '\r') ||
(index >= m_ble_nus_max_data_len)) &&
(strncmp ((char *) data_array, "shell>", 6) != 0) &&
(strncmp ((char *) data_array, lastCommand, strlen (lastCommand)) != 0))
{
//printf("%s", data_array);
if ((index > 1) && (first_ser))
{
NRF_LOG_HEXDUMP_DEBUG(data_array, index);
static char command_line[256];
size_t siz = sizeof(command_line) / sizeof(command_line[0]);
memset (command_line, 0, 256);
strncpy (command_line, (char *) data_array,siz-1);
//NRF_LOG_INFO("Data");
//NRF_LOG_INFO("Data %s",command_line);
//std::string dat(command_line);
//NRF_LOG_INFO("Data ver is set to %c(%d)",command_line ,siz-1);
for(int i=0; i<10; i++)
{
NRF_LOG_INFO(" %c",command_line[i]);
}
do
{
uint16_t length = (uint16_t)index;
err_code = ble_nus_data_send(&m_nus, data_array, &length, m_conn_handle);
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);
Version_control = true;
}
/*---------------------------------------------------------------------------------------------------*/
if ((index > 1) && (second_ser))
{
NRF_LOG_HEXDUMP_DEBUG(data_array, index);
//second_ser = false;
static char command[256];
size_t siz = sizeof(command) / sizeof(command[0]);
memset (command, 0, 256);
strncpy (command, (char *) data_array,siz-1);
//std::string dat(command_line);
//NRF_LOG_INFO("Data ver is set to %c(%d)",command_line ,siz-1);
/*for(int i=0; i<30; i++)
{
NRF_LOG_INFO(" %c",command[i]);
/*if(command[i] == ']')
{
Report_control = true;
}
}
NRF_LOG_INFO("UART is empty");*/
do
{
uint16_t length = (uint16_t)index;
// string converted = Encoding.UTF8.GetString(data_array, 0, data_array.Length);
//NRF_LOG_INFO("Data ver is set to %s(%d)",converted ,sizeof(converted));
err_code = ble_nus_data_send_2(&m_nus, data_array, &length, m_conn_handle);
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 (index > 1 && (third_ser))
{
NRF_LOG_HEXDUMP_DEBUG(data_array, index);
static char Report_line[256];
size_t siz = sizeof(Report_line) / sizeof(Report_line[0]);
memset (Report_line, 0, 256);
strncpy (Report_line, (char *) data_array,siz-1);
for(int i=0; i<10; i++)
{
NRF_LOG_INFO(" %c",Report_line[i]);
}
do
{
uint16_t length = (uint16_t)index;
err_code = ble_nus_data_send_3(&m_nus, data_array, &length, m_conn_handle);
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);
}
index = 0;
memset (data_array, 0, BLE_NUS_MAX_DATA_LEN);
} else if ((isConnected) && ((strncmp ((char *) data_array, "shell>", 6) == 0) ||
(strncmp ((char *) data_array, lastCommand, strlen (lastCommand)) == 0)))
{
index = 0;
memset (data_array, 0, BLE_NUS_MAX_DATA_LEN);
}
if(strncmp ((char *) data_array,"Software Reset Count", 20) == 0)
{
NRF_LOG_INFO("Ready for report");
Report_control = true;
}
/*else
{
NRF_LOG_INFO("Not ready for report");
}*/
break;
/*case APP_UART_TX_EMPTY:
NRF_LOG_INFO("UART is empty");
break;*/
case APP_UART_COMMUNICATION_ERROR:
// printf ("UART Comm error\r\n");
APP_ERROR_HANDLER(p_event->data.error_communication);
break;
case APP_UART_FIFO_ERROR:
// printf ("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;
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,
#if defined (UART_PRESENT)
.baud_rate = NRF_UART_BAUDRATE_19200
#else
.baud_rate = NRF_UARTE_BAUDRATE_19200
#endif
};
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_advertising_init_t init;
memset(&init, 0, sizeof(init));
init.advdata.name_type = BLE_ADVDATA_FULL_NAME;
init.advdata.include_appearance = false;
init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
init.srdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
init.srdata.uuids_complete.p_uuids = m_adv_uuids;
init.config.ble_adv_fast_enabled = true;
init.config.ble_adv_fast_interval = APP_ADV_INTERVAL;
init.config.ble_adv_fast_timeout = APP_ADV_DURATION;
init.evt_handler = on_adv_evt;
err_code = ble_advertising_init(&m_advertising, &init);
APP_ERROR_CHECK(err_code);
ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
}
/**@brief Function for initializing buttons and leds.
*
* @param[out] p_erase_bonds Will be true if the clear bonding button was pressed to wake the application up.
*/
static void buttons_leds_init(bool * p_erase_bonds)
{
bsp_event_t startup_event;
uint32_t err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, 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 initializing the nrf log module.
*/
static void log_init(void)
{
ret_code_t err_code = NRF_LOG_INIT(NULL);
APP_ERROR_CHECK(err_code);
NRF_LOG_DEFAULT_BACKENDS_INIT();
}
/**@brief Function for initializing power management.
*/
static void power_management_init(void)
{
ret_code_t err_code;
err_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the idle state (main loop).
*
* @details If there is no pending log operation, then sleep until next the next event occurs.
*/
static void idle_state_handle(void)
{
UNUSED_RETURN_VALUE(NRF_LOG_PROCESS());
nrf_pwr_mgmt_run();
}
/**@brief Function for starting advertising.
*/
static void advertising_start(void)
{
uint32_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
}
/**@brief Application main function.
*/
int main(void)
{
bool erase_bonds;
// Initialize.
uart_init();
log_init();
timers_init();
buttons_leds_init(&erase_bonds);
power_management_init();
ble_stack_init();
gap_params_init();
gatt_init();
//command_send();
services_init();
advertising_init();
conn_params_init();
// Start execution.
// printf("\r\nUART started.\r\n");
advertising_start();
app_uart_put('\r');
// Enter main loop.
for (;;)
{
idle_state_handle();
}
}
/**
* @}
*/
my NRF ble_nus.c
/**
* Copyright (c) 2012 - 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.
*
*/
#include "sdk_common.h"
#if NRF_MODULE_ENABLED(BLE_NUS)
#include "ble.h"
#include "ble_nus.h"
#include "ble_srv_common.h"
#define NRF_LOG_MODULE_NAME ble_nus
#if BLE_NUS_CONFIG_LOG_ENABLED
#define NRF_LOG_LEVEL BLE_NUS_CONFIG_LOG_LEVEL
#define NRF_LOG_INFO_COLOR BLE_NUS_CONFIG_INFO_COLOR
#define NRF_LOG_DEBUG_COLOR BLE_NUS_CONFIG_DEBUG_COLOR
#else // BLE_NUS_CONFIG_LOG_ENABLED
#define NRF_LOG_LEVEL 0
#endif // BLE_NUS_CONFIG_LOG_ENABLED
#include "nrf_log.h"
NRF_LOG_MODULE_REGISTER();
#define BLE_UUID_NUS_TX_CHARACTERISTIC 0x0003 /**< The UUID of the TX Characteristic. */
#define BLE_UUID_NUS_RX_CHARACTERISTIC 0x0002 /**< The UUID of the RX Characteristic. */
#define BLE_UUID_NUS_RX_2_CHARACTERISTIC 0x1002
#define BLE_UUID_NUS_TX_2_CHARACTERISTIC 0x1003
#define BLE_UUID_NUS_RD_CHARACTERISTIC 0x2004
#define BLE_NUS_MAX_RX_CHAR_LEN BLE_NUS_MAX_DATA_LEN /**< Maximum length of the RX Characteristic (in bytes). */
#define BLE_NUS_MAX_TX_CHAR_LEN BLE_NUS_MAX_DATA_LEN /**< Maximum length of the TX Characteristic (in bytes). */
#define BLE_NUS_MAX_RD_CHAR_LEN BLE_NUS_MAX_DATA_LEN
#define NUS_BASE_UUID {{0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x00, 0x00, 0x40, 0x6E}} /**< Used vendor specific UUID. */
/**@brief Function for handling the @ref BLE_GAP_EVT_CONNECTED event from the SoftDevice.
*
* @param[in] p_nus Nordic UART Service structure.
* @param[in] p_ble_evt Pointer to the event received from BLE stack.
*/
static void on_connect(ble_nus_t * p_nus, ble_evt_t const * p_ble_evt)
{
ret_code_t err_code;
ble_nus_evt_t evt;
ble_gatts_value_t gatts_val;
uint8_t cccd_value[2];
ble_nus_client_context_t * p_client = NULL;
err_code = blcm_link_ctx_get(p_nus->p_link_ctx_storage,
p_ble_evt->evt.gap_evt.conn_handle,
(void *) &p_client);
if (err_code != NRF_SUCCESS)
{
NRF_LOG_ERROR("Link context for 0x%02X connection handle could not be fetched.",
p_ble_evt->evt.gap_evt.conn_handle);
}
/* Check the hosts CCCD value to inform of readiness to send data using the RX characteristic */
memset(&gatts_val, 0, sizeof(ble_gatts_value_t));
gatts_val.p_value = cccd_value;
gatts_val.len = sizeof(cccd_value);
gatts_val.offset = 0;
err_code = sd_ble_gatts_value_get(p_ble_evt->evt.gap_evt.conn_handle,
p_nus->rx_handles.cccd_handle,
&gatts_val);
if ((err_code == NRF_SUCCESS) &&
(p_nus->data_handler != NULL) &&
ble_srv_is_notification_enabled(gatts_val.p_value))
{
if (p_client != NULL)
{
p_client->is_notification_enabled = true;
}
memset(&evt, 0, sizeof(ble_nus_evt_t));
evt.type = BLE_NUS_EVT_COMM_STARTED;
evt.p_nus = p_nus;
evt.conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
evt.p_link_ctx = p_client;
p_nus->data_handler(&evt);
}
}
/**@brief Function for handling the @ref BLE_GATTS_EVT_WRITE event from the SoftDevice.
*
* @param[in] p_nus Nordic UART Service structure.
* @param[in] p_ble_evt Pointer to the event received from BLE stack.
*/
static void on_write(ble_nus_t * p_nus, ble_evt_t const * p_ble_evt)
{
ret_code_t err_code;
ble_nus_evt_t evt;
ble_nus_client_context_t * p_client;
ble_gatts_evt_write_t const * p_evt_write = &p_ble_evt->evt.gatts_evt.params.write;
err_code = blcm_link_ctx_get(p_nus->p_link_ctx_storage,
p_ble_evt->evt.gatts_evt.conn_handle,
(void *) &p_client);
if (err_code != NRF_SUCCESS)
{
NRF_LOG_ERROR("Link context for 0x%02X connection handle could not be fetched.",
p_ble_evt->evt.gatts_evt.conn_handle);
}
memset(&evt, 0, sizeof(ble_nus_evt_t));
evt.p_nus = p_nus;
evt.conn_handle = p_ble_evt->evt.gatts_evt.conn_handle;
evt.p_link_ctx = p_client;
if ((p_evt_write->handle == p_nus->tx_handles.cccd_handle) &&
(p_evt_write->len == 2))
{
if (p_client != NULL)
{
if (ble_srv_is_notification_enabled(p_evt_write->data))
{
p_client->is_notification_enabled = true;
evt.type = BLE_NUS_EVT_COMM_STARTED;
NRF_LOG_INFO("Communication Started");
}
else
{
p_client->is_notification_enabled = false;
evt.type = BLE_NUS_EVT_COMM_STOPPED;
NRF_LOG_INFO("Communication Stopped");
}
if (p_nus->data_handler != NULL)
{
p_nus->data_handler(&evt);
}
}
}
else if ((p_evt_write->handle == p_nus->rx_handles.value_handle) &&
(p_nus->data_handler != NULL))
{
evt.type = BLE_NUS_EVT_RX_DATA;
evt.params.rx_data.p_data = p_evt_write->data;
evt.params.rx_data.length = p_evt_write->len;
p_nus->data_handler(&evt);
}
else
{
// Do Nothing. This event is not relevant for this service.
}
}
/**@brief Function for handling the @ref BLE_GATTS_EVT_HVN_TX_COMPLETE event from the SoftDevice.
*
* @param[in] p_nus Nordic UART Service structure.
* @param[in] p_ble_evt Pointer to the event received from BLE stack.
*/
static void on_hvx_tx_complete(ble_nus_t * p_nus, ble_evt_t const * p_ble_evt)
{
ret_code_t err_code;
ble_nus_evt_t evt;
ble_nus_client_context_t * p_client;
err_code = blcm_link_ctx_get(p_nus->p_link_ctx_storage,
p_ble_evt->evt.gatts_evt.conn_handle,
(void *) &p_client);
if (err_code != NRF_SUCCESS)
{
NRF_LOG_ERROR("Link context for 0x%02X connection handle could not be fetched.",
p_ble_evt->evt.gatts_evt.conn_handle);
return;
}
if (p_client->is_notification_enabled)
{
NRF_LOG_INFO(" notfication Enabled");
memset(&evt, 0, sizeof(ble_nus_evt_t));
evt.type = BLE_NUS_EVT_TX_RDY;
evt.p_nus = p_nus;
evt.conn_handle = p_ble_evt->evt.gatts_evt.conn_handle;
evt.p_link_ctx = p_client;
p_nus->data_handler(&evt);
}
}
/**@brief Function for adding TX characteristic.
*
* @param[in] p_nus Nordic UART Service structure.
* @param[in] p_nus_init Information needed to initialize the service.
*
* @return NRF_SUCCESS on success, otherwise an error code.
*/
static uint32_t tx_char_add(ble_nus_t * p_nus, ble_nus_init_t const * p_nus_init)
{
/**@snippet [Adding proprietary characteristic to the SoftDevice] */
ble_gatts_char_md_t char_md;
ble_gatts_attr_md_t cccd_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&cccd_md, 0, sizeof(cccd_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.write_perm);
cccd_md.vloc = BLE_GATTS_VLOC_STACK;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.notify = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
char_md.p_cccd_md = &cccd_md;
char_md.p_sccd_md = NULL;
ble_uuid.type = p_nus->uuid_type;
ble_uuid.uuid = BLE_UUID_NUS_TX_CHARACTERISTIC;
memset(&attr_md, 0, sizeof(attr_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);
attr_md.vloc = BLE_GATTS_VLOC_USER;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 1;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = sizeof(uint8_t);
attr_char_value.init_offs = 0;
attr_char_value.max_len = BLE_NUS_MAX_TX_CHAR_LEN;
return sd_ble_gatts_characteristic_add(p_nus->service_handle,
&char_md,
&attr_char_value,
&p_nus->tx_handles);
/**@snippet [Adding proprietary characteristic to the SoftDevice] */
}
/*-----------------------------------------------------------------------------------------------------------*/
static uint32_t tx_char_add_2(ble_nus_t * p_nus, ble_nus_init_t const * p_nus_init)
{
/**@snippet [Adding proprietary characteristic to the SoftDevice] */
ble_gatts_char_md_t char_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.notify = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
char_md.p_cccd_md = NULL;
char_md.p_sccd_md = NULL;
ble_uuid.type = p_nus->uuid_type;
ble_uuid.uuid = BLE_UUID_NUS_TX_2_CHARACTERISTIC;
memset(&attr_md, 0, sizeof(attr_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);
attr_md.vloc = BLE_GATTS_VLOC_USER;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 1;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = sizeof(uint8_t);
attr_char_value.init_offs = 0;
attr_char_value.max_len = BLE_NUS_MAX_TX_CHAR_LEN;
return sd_ble_gatts_characteristic_add(p_nus->service_handle,
&char_md,
&attr_char_value,
&p_nus->tx_2_handles);
/**@snippet [Adding proprietary characteristic to the SoftDevice] */
}
/*------------------------------------------------------------------------------------------------------------*/
/**@brief Function for adding RX characteristic.
*
* @param[in] p_nus Nordic UART Service structure.
* @param[in] p_nus_init Information needed to initialize the service.
*
* @return NRF_SUCCESS on success, otherwise an error code.
*/
static uint32_t rx_char_add(ble_nus_t * p_nus, const ble_nus_init_t * p_nus_init)
{
ble_gatts_char_md_t char_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.write = 1;
char_md.char_props.write_wo_resp = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
char_md.p_cccd_md = NULL;
char_md.p_sccd_md = NULL;
ble_uuid.type = p_nus->uuid_type;
ble_uuid.uuid = BLE_UUID_NUS_RX_CHARACTERISTIC;
memset(&attr_md, 0, sizeof(attr_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);
attr_md.vloc = BLE_GATTS_VLOC_USER;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 1;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = 1;
attr_char_value.init_offs = 0;
attr_char_value.max_len = BLE_NUS_MAX_RX_CHAR_LEN;
return sd_ble_gatts_characteristic_add(p_nus->service_handle,
&char_md,
&attr_char_value,
&p_nus->rx_handles);
}
/*-------------------------------------------------------------------------------------------*/
static uint32_t rx_char_2_add(ble_nus_t * p_nus, const ble_nus_init_t * p_nus_init)
{
ble_gatts_char_md_t char_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.read = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
char_md.p_cccd_md = NULL;
char_md.p_sccd_md = NULL;
ble_uuid.type = p_nus->uuid_type;
ble_uuid.uuid = BLE_UUID_NUS_RX_2_CHARACTERISTIC;
memset(&attr_md, 0, sizeof(attr_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);
attr_md.vloc = BLE_GATTS_VLOC_USER;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 1;
memset(&attr_char_value, 0, sizeof(attr_char_value));
uint8_t value[7] = {0x56,0x45,0x52,0x53,0x49,0x4F,0x4E};
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = 7;
attr_char_value.init_offs = 0;
attr_char_value.max_len = BLE_NUS_MAX_RX_CHAR_LEN;
attr_char_value.p_value = value;
return sd_ble_gatts_characteristic_add(p_nus->service_handle,
&char_md,
&attr_char_value,
&p_nus->rx_2_handles);
}
/*--------------------------------------------------------------------------------------------*/
/*--------------------------READ FROM Character-----------------------------------*/
static uint32_t rd_char_add(ble_nus_t * p_nus, ble_nus_init_t const * p_nus_init)
{
/**@snippet [Adding proprietary characteristic to the SoftDevice] */
ble_gatts_char_md_t char_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.notify = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
char_md.p_cccd_md = NULL;
char_md.p_sccd_md = NULL;
ble_uuid.type = p_nus->uuid_type;
ble_uuid.uuid = BLE_UUID_NUS_RD_CHARACTERISTIC;
memset(&attr_md, 0, sizeof(attr_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);
attr_md.vloc = BLE_GATTS_VLOC_USER;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 1;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = sizeof(uint8_t);
attr_char_value.init_offs = 0;
attr_char_value.max_len = BLE_NUS_MAX_RD_CHAR_LEN;
return sd_ble_gatts_characteristic_add(p_nus->service_handle,
&char_md,
&attr_char_value,
&p_nus->rd_handles);
}
/*----------------------------------------------------------------------------------------------*/
void ble_nus_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context)
{
if ((p_context == NULL) || (p_ble_evt == NULL))
{
return;
}
ble_nus_t * p_nus = (ble_nus_t *)p_context;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
on_connect(p_nus, p_ble_evt);
break;
case BLE_GATTS_EVT_WRITE:
on_write(p_nus, p_ble_evt);
break;
case BLE_GATTS_EVT_HVN_TX_COMPLETE:
on_hvx_tx_complete(p_nus, p_ble_evt);
break;
default:
// No implementation needed.
break;
}
}
/*-----------------------------------------------------------------------------------------*/
uint32_t ble_nus_init_2(ble_nus_t * p_nus, ble_nus_init_t const * p_nus_init)
{
ret_code_t err_code;
ble_uuid_t ble_uuid;
ble_uuid128_t nus_base_uuid = NUS_BASE_UUID;
VERIFY_PARAM_NOT_NULL(p_nus);
VERIFY_PARAM_NOT_NULL(p_nus_init);
// Initialize the service structure.
p_nus->data_handler = p_nus_init->data_handler;
/**@snippet [Adding proprietary Service to the SoftDevice] */
// Add a custom base UUID.
err_code = sd_ble_uuid_vs_add(&nus_base_uuid, &p_nus->uuid_type);
VERIFY_SUCCESS(err_code);
ble_uuid.type = p_nus->uuid_type;
ble_uuid.uuid = BLE_UUID_NUS_SERVICE_2;
// Add the service.
err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY,
&ble_uuid,
&p_nus->service_handle);
/**@snippet [Adding proprietary Service to the SoftDevice] */
VERIFY_SUCCESS(err_code);
// Add the RX Characteristic.
// Add the TX Characteristic.
err_code = tx_char_add_2(p_nus, p_nus_init);
VERIFY_SUCCESS(err_code);
return NRF_SUCCESS;
}
/*-----------------------------------------------------------------------------------------*/
/*------------------------------Service Three -----------------------------------------*/
uint32_t ble_nus_init_3(ble_nus_t * p_nus, ble_nus_init_t const * p_nus_init)
{
ret_code_t err_code;
ble_uuid_t ble_uuid;
ble_uuid128_t nus_base_uuid = NUS_BASE_UUID;
VERIFY_PARAM_NOT_NULL(p_nus);
VERIFY_PARAM_NOT_NULL(p_nus_init);
// Initialize the service structure.
p_nus->data_handler = p_nus_init->data_handler;
/**@snippet [Adding proprietary Service to the SoftDevice] */
// Add a custom base UUID.
err_code = sd_ble_uuid_vs_add(&nus_base_uuid, &p_nus->uuid_type);
VERIFY_SUCCESS(err_code);
ble_uuid.type = p_nus->uuid_type;
ble_uuid.uuid = 00;
// Add the service.
err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY,
&ble_uuid,
&p_nus->service_handle);
/**@snippet [Adding proprietary Service to the SoftDevice] */
VERIFY_SUCCESS(err_code);
// Add the RX Characteristic.
err_code = rx_char_2_add(p_nus, p_nus_init);
VERIFY_SUCCESS(err_code);
// Add the TX Characteristic.
err_code = rd_char_add(p_nus, p_nus_init);
VERIFY_SUCCESS(err_code);
return NRF_SUCCESS;
}
/*------------------------------------------------------------------------------------------------*/
uint32_t ble_nus_init(ble_nus_t * p_nus, ble_nus_init_t const * p_nus_init)
{
ret_code_t err_code;
ble_uuid_t ble_uuid;
ble_uuid128_t nus_base_uuid = NUS_BASE_UUID;
VERIFY_PARAM_NOT_NULL(p_nus);
VERIFY_PARAM_NOT_NULL(p_nus_init);
// Initialize the service structure.
p_nus->data_handler = p_nus_init->data_handler;
/**@snippet [Adding proprietary Service to the SoftDevice] */
// Add a custom base UUID.
err_code = sd_ble_uuid_vs_add(&nus_base_uuid, &p_nus->uuid_type);
VERIFY_SUCCESS(err_code);
ble_uuid.type = p_nus->uuid_type;
ble_uuid.uuid = BLE_UUID_NUS_SERVICE;
// Add the service.
err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY,
&ble_uuid,
&p_nus->service_handle);
/**@snippet [Adding proprietary Service to the SoftDevice] */
VERIFY_SUCCESS(err_code);
// Add the RX Characteristic.
err_code = rx_char_add(p_nus, p_nus_init);
VERIFY_SUCCESS(err_code);
// Add the TX Characteristic.
err_code = tx_char_add(p_nus, p_nus_init);
VERIFY_SUCCESS(err_code);
return NRF_SUCCESS;
}
/*---------------------------------------------------------------------------------------------*/
uint32_t ble_nus_data_send(ble_nus_t * p_nus,
uint8_t * p_data,
uint16_t * p_length,
uint16_t conn_handle)
{
ret_code_t err_code;
ble_gatts_hvx_params_t hvx_params;
ble_nus_client_context_t * p_client;
VERIFY_PARAM_NOT_NULL(p_nus);
err_code = blcm_link_ctx_get(p_nus->p_link_ctx_storage, conn_handle, (void *) &p_client);
VERIFY_SUCCESS(err_code);
if ((conn_handle == BLE_CONN_HANDLE_INVALID) || (p_client == NULL))
{
return NRF_ERROR_NOT_FOUND;
}
if (!p_client->is_notification_enabled)
{
return NRF_ERROR_INVALID_STATE;
}
if (*p_length > BLE_NUS_MAX_DATA_LEN)
{
return NRF_ERROR_INVALID_PARAM;
}
memset(&hvx_params, 0, sizeof(hvx_params));
hvx_params.handle = p_nus->tx_handles.value_handle;
hvx_params.p_data = p_data;
hvx_params.p_len = p_length;
hvx_params.type = BLE_GATT_HVX_NOTIFICATION;
return sd_ble_gatts_hvx(conn_handle, &hvx_params);
}
/*------------------------------------------------------------------------------------------------------*/
uint32_t ble_nus_data_send_2(ble_nus_t * p_nus,
uint8_t * p_data,
uint16_t * p_length,
uint16_t conn_handle)
{
ret_code_t err_code;
ble_gatts_hvx_params_t hvx_params;
ble_nus_client_context_t * p_client;
VERIFY_PARAM_NOT_NULL(p_nus);
err_code = blcm_link_ctx_get(p_nus->p_link_ctx_storage, conn_handle, (void *) &p_client);
VERIFY_SUCCESS(err_code);
if ((conn_handle == BLE_CONN_HANDLE_INVALID) || (p_client == NULL))
{
return NRF_ERROR_NOT_FOUND;
}
if (!p_client->is_notification_enabled)
{
return NRF_ERROR_INVALID_STATE;
}
if (*p_length > BLE_NUS_MAX_DATA_LEN)
{
return NRF_ERROR_INVALID_PARAM;
}
memset(&hvx_params, 0, sizeof(hvx_params));
hvx_params.handle = p_nus->tx_2_handles.value_handle;
hvx_params.p_data = p_data;
hvx_params.p_len = p_length;
hvx_params.type = BLE_GATT_HVX_2_NOTIFICATION;
return sd_ble_gatts_hvx(conn_handle, &hvx_params);
}
/*----------------------------------------------send for reading ---------------------------------*/
uint32_t ble_nus_data_send_3(ble_nus_t * p_nus,
uint8_t * p_data,
uint16_t * p_length,
uint16_t conn_handle)
{
ret_code_t err_code;
ble_gatts_hvx_params_t hvx_params;
ble_nus_client_context_t * p_client;
VERIFY_PARAM_NOT_NULL(p_nus);
err_code = blcm_link_ctx_get(p_nus->p_link_ctx_storage, conn_handle, (void *) &p_client);
VERIFY_SUCCESS(err_code);
if ((conn_handle == BLE_CONN_HANDLE_INVALID) || (p_client == NULL))
{
return NRF_ERROR_NOT_FOUND;
}
if (!p_client->is_notification_enabled)
{
return NRF_ERROR_INVALID_STATE;
}
if (*p_length > BLE_NUS_MAX_DATA_LEN)
{
return NRF_ERROR_INVALID_PARAM;
}
memset(&hvx_params, 0, sizeof(hvx_params));
hvx_params.handle = p_nus->rd_handles.value_handle;
hvx_params.p_data = p_data;
hvx_params.p_len = p_length;
hvx_params.type = BLE_GATT_HVX_3_NOTIFICATION;
return sd_ble_gatts_hvx(conn_handle, &hvx_params);
}
/*--------------------------------------------------------------------------------------------------*/
#endif // NRF_MODULE_ENABLED(BLE_NUS)
On Android studio Console i got this.
D/My Device: UART_CONNECT_MSG D/BluetoothGatt: onSearchComplete() = Device=E7:89:27:D2:B1:DA Status=0 W/UartService: mBluetoothGatt = android.bluetooth.BluetoothGatt@c8f41f0 E/onServicesDiscovered: [android.bluetooth.BluetoothGattService@eb66369, android.bluetooth.BluetoothGattService@22881ee, android.bluetooth.BluetoothGattService@eea068f, android.bluetooth.BluetoothGattService@93e8d1c, android.bluetooth.BluetoothGattService@e48cd25] W/UartService: first character: UUID 6e400003-b5a3-f393-e0a9-e50e24dcca9e W/UartService: second character: UUID 6e401003-b5a3-f393-e0a9-e50e24dcca9e W/UartService: first character: UUID 6e402004-b5a3-f393-e0a9-e50e24dcca9e W/UartService: I am Reading: 6e400003-b5a3-f393-e0a9-e50e24dcca9e D/BluetoothGatt: setCharacteristicNotification() - uuid: 6e400003-b5a3-f393-e0a9-e50e24dcca9e enable: true D/BluetoothGatt: setCharacteristicNotification() - uuid: 6e402004-b5a3-f393-e0a9-e50e24dcca9e enable: true D/BluetoothGatt: setCharacteristicNotification() - uuid: 6e401003-b5a3-f393-e0a9-e50e24dcca9e enable: true D/My Device: Sending device command E/UartService: mBluetoothGatt nullandroid.bluetooth.BluetoothGatt@c8f41f0 D/UartService: write TXchar - status=true D/CYNCH: time is going to terminate D/BluetoothAdapter: STATE_ON D/BluetoothLeScanner: could not find callback wrapper D/BluetoothGatt: onClientConnectionState() - status=8 clientIf=5 device=E7:89:27:D2:B1:DA I/UartService: Disconnected from GATT server. D/My Device: UART_DISCONNECT_MSG
