mamont mamont / Mbed OS nrf52840_mdk_ble_button

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

main.cpp@0:e8b2929feaea, 2020-06-05 (annotated)

Committer:
mamont090671
Date:
Fri Jun 05 14:20:12 2020 +0000
Revision:
0:e8b2929feaea
nrf52840-mdk

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mamont090671 0:e8b2929feaea 1 /* mbed Microcontroller Library
mamont090671 0:e8b2929feaea 2 * Copyright (c) 2006-2013 ARM Limited
mamont090671 0:e8b2929feaea 3 *
mamont090671 0:e8b2929feaea 4 * Licensed under the Apache License, Version 2.0 (the "License");
mamont090671 0:e8b2929feaea 5 * you may not use this file except in compliance with the License.
mamont090671 0:e8b2929feaea 6 * You may obtain a copy of the License at
mamont090671 0:e8b2929feaea 7 *
mamont090671 0:e8b2929feaea 8 * http://www.apache.org/licenses/LICENSE-2.0
mamont090671 0:e8b2929feaea 9 *
mamont090671 0:e8b2929feaea 10 * Unless required by applicable law or agreed to in writing, software
mamont090671 0:e8b2929feaea 11 * distributed under the License is distributed on an "AS IS" BASIS,
mamont090671 0:e8b2929feaea 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mamont090671 0:e8b2929feaea 13 * See the License for the specific language governing permissions and
mamont090671 0:e8b2929feaea 14 * limitations under the License.
mamont090671 0:e8b2929feaea 15 */
mamont090671 0:e8b2929feaea 16 #include <events/mbed_events.h>
mamont090671 0:e8b2929feaea 17
mamont090671 0:e8b2929feaea 18 #include <mbed.h>
mamont090671 0:e8b2929feaea 19 #include "ble/BLE.h"
mamont090671 0:e8b2929feaea 20 #include "ble/Gap.h"
mamont090671 0:e8b2929feaea 21 #include "ButtonService.h"
mamont090671 0:e8b2929feaea 22
mamont090671 0:e8b2929feaea 23 DigitalOut led1(P0_24, 1);
mamont090671 0:e8b2929feaea 24 InterruptIn button(P0_18);
mamont090671 0:e8b2929feaea 25
mamont090671 0:e8b2929feaea 26 static EventQueue eventQueue(/* event count */ 10 * EVENTS_EVENT_SIZE);
mamont090671 0:e8b2929feaea 27
mamont090671 0:e8b2929feaea 28 const static char DEVICE_NAME[] = "Button";
mamont090671 0:e8b2929feaea 29 static const uint16_t uuid16_list[] = {ButtonService::BUTTON_SERVICE_UUID};
mamont090671 0:e8b2929feaea 30
mamont090671 0:e8b2929feaea 31 ButtonService *buttonServicePtr;
mamont090671 0:e8b2929feaea 32
mamont090671 0:e8b2929feaea 33 void buttonPressedCallback(void)
mamont090671 0:e8b2929feaea 34 {
mamont090671 0:e8b2929feaea 35 eventQueue.call(Callback<void(bool)>(buttonServicePtr, &ButtonService::updateButtonState), true);
mamont090671 0:e8b2929feaea 36 }
mamont090671 0:e8b2929feaea 37
mamont090671 0:e8b2929feaea 38 void buttonReleasedCallback(void)
mamont090671 0:e8b2929feaea 39 {
mamont090671 0:e8b2929feaea 40 eventQueue.call(Callback<void(bool)>(buttonServicePtr, &ButtonService::updateButtonState), false);
mamont090671 0:e8b2929feaea 41 }
mamont090671 0:e8b2929feaea 42
mamont090671 0:e8b2929feaea 43 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
mamont090671 0:e8b2929feaea 44 {
mamont090671 0:e8b2929feaea 45 BLE::Instance().gap().startAdvertising(); // restart advertising
mamont090671 0:e8b2929feaea 46 led1 = 1;
mamont090671 0:e8b2929feaea 47 }
mamont090671 0:e8b2929feaea 48 void connectionCallback(const Gap::ConnectionCallbackParams_t *params)
mamont090671 0:e8b2929feaea 49 {
mamont090671 0:e8b2929feaea 50 led1 = 0;
mamont090671 0:e8b2929feaea 51 }
mamont090671 0:e8b2929feaea 52
mamont090671 0:e8b2929feaea 53 void blinkCallback(void)
mamont090671 0:e8b2929feaea 54 {
mamont090671 0:e8b2929feaea 55 // led1 = !led1; /* Do blinky on LED1 to indicate system aliveness. */
mamont090671 0:e8b2929feaea 56 }
mamont090671 0:e8b2929feaea 57
mamont090671 0:e8b2929feaea 58 void onBleInitError(BLE &ble, ble_error_t error)
mamont090671 0:e8b2929feaea 59 {
mamont090671 0:e8b2929feaea 60 /* Initialization error handling should go here */
mamont090671 0:e8b2929feaea 61 }
mamont090671 0:e8b2929feaea 62
mamont090671 0:e8b2929feaea 63 void printMacAddress()
mamont090671 0:e8b2929feaea 64 {
mamont090671 0:e8b2929feaea 65 /* Print out device MAC address to the console*/
mamont090671 0:e8b2929feaea 66 Gap::AddressType_t addr_type;
mamont090671 0:e8b2929feaea 67 Gap::Address_t address;
mamont090671 0:e8b2929feaea 68 BLE::Instance().gap().getAddress(&addr_type, address);
mamont090671 0:e8b2929feaea 69 printf("DEVICE MAC ADDRESS: ");
mamont090671 0:e8b2929feaea 70 for (int i = 5; i >= 1; i--){
mamont090671 0:e8b2929feaea 71 printf("%02x:", address[i]);
mamont090671 0:e8b2929feaea 72 }
mamont090671 0:e8b2929feaea 73 printf("%02x\r\n", address[0]);
mamont090671 0:e8b2929feaea 74 }
mamont090671 0:e8b2929feaea 75
mamont090671 0:e8b2929feaea 76 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
mamont090671 0:e8b2929feaea 77 {
mamont090671 0:e8b2929feaea 78 BLE& ble = params->ble;
mamont090671 0:e8b2929feaea 79 ble_error_t error = params->error;
mamont090671 0:e8b2929feaea 80
mamont090671 0:e8b2929feaea 81 if (error != BLE_ERROR_NONE) {
mamont090671 0:e8b2929feaea 82 /* In case of error, forward the error handling to onBleInitError */
mamont090671 0:e8b2929feaea 83 onBleInitError(ble, error);
mamont090671 0:e8b2929feaea 84 return;
mamont090671 0:e8b2929feaea 85 }
mamont090671 0:e8b2929feaea 86
mamont090671 0:e8b2929feaea 87 /* Ensure that it is the default instance of BLE */
mamont090671 0:e8b2929feaea 88 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
mamont090671 0:e8b2929feaea 89 return;
mamont090671 0:e8b2929feaea 90 }
mamont090671 0:e8b2929feaea 91
mamont090671 0:e8b2929feaea 92 ble.gap().onDisconnection(disconnectionCallback);
mamont090671 0:e8b2929feaea 93 ble.gap().onConnection(connectionCallback);
mamont090671 0:e8b2929feaea 94
mamont090671 0:e8b2929feaea 95 button.fall(buttonPressedCallback);
mamont090671 0:e8b2929feaea 96 button.rise(buttonReleasedCallback);
mamont090671 0:e8b2929feaea 97
mamont090671 0:e8b2929feaea 98 /* Setup primary service. */
mamont090671 0:e8b2929feaea 99 buttonServicePtr = new ButtonService(ble, false /* initial value for button pressed */);
mamont090671 0:e8b2929feaea 100
mamont090671 0:e8b2929feaea 101 /* setup advertising */
mamont090671 0:e8b2929feaea 102 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
mamont090671 0:e8b2929feaea 103 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
mamont090671 0:e8b2929feaea 104 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
mamont090671 0:e8b2929feaea 105 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
mamont090671 0:e8b2929feaea 106 ble.gap().setAdvertisingInterval(1000); /* 1000ms. */
mamont090671 0:e8b2929feaea 107 ble.gap().startAdvertising();
mamont090671 0:e8b2929feaea 108
mamont090671 0:e8b2929feaea 109 // printMacAddress();
mamont090671 0:e8b2929feaea 110 }
mamont090671 0:e8b2929feaea 111
mamont090671 0:e8b2929feaea 112 void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) {
mamont090671 0:e8b2929feaea 113 BLE &ble = BLE::Instance();
mamont090671 0:e8b2929feaea 114 eventQueue.call(Callback<void()>(&ble, &BLE::processEvents));
mamont090671 0:e8b2929feaea 115 }
mamont090671 0:e8b2929feaea 116
mamont090671 0:e8b2929feaea 117 int main()
mamont090671 0:e8b2929feaea 118 {
mamont090671 0:e8b2929feaea 119 eventQueue.call_every(500, blinkCallback);
mamont090671 0:e8b2929feaea 120
mamont090671 0:e8b2929feaea 121 BLE &ble = BLE::Instance();
mamont090671 0:e8b2929feaea 122 ble.onEventsToProcess(scheduleBleEventsProcessing);
mamont090671 0:e8b2929feaea 123 ble.init(bleInitComplete);
mamont090671 0:e8b2929feaea 124
mamont090671 0:e8b2929feaea 125 eventQueue.dispatch_forever();
mamont090671 0:e8b2929feaea 126
mamont090671 0:e8b2929feaea 127 return 0;
mamont090671 0:e8b2929feaea 128 }