SDT Inc. / Mbed OS SDT-example-ble-uart-echo

Example for Healthcare Kit

main.cpp@0:5ed42babfd71, 2018-09-17 (annotated)

Committer:
group-Sigma-Delta-Technologies
Date:
Mon Sep 17 02:26:52 2018 +0000
Revision:
0:5ed42babfd71
Initial commit

Who changed what in which revision?

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group-Sigma-Delta-Technologies 0:5ed42babfd71 1 /* SDT-example-ble-uart-echo
group-Sigma-Delta-Technologies 0:5ed42babfd71 2 *
group-Sigma-Delta-Technologies 0:5ed42babfd71 3 * Copyright (c) 2018 Sigma Delta Technologies Inc.
group-Sigma-Delta-Technologies 0:5ed42babfd71 4 *
group-Sigma-Delta-Technologies 0:5ed42babfd71 5 * MIT License
group-Sigma-Delta-Technologies 0:5ed42babfd71 6 *
group-Sigma-Delta-Technologies 0:5ed42babfd71 7 * Permission is hereby granted, free of charge, to any person
group-Sigma-Delta-Technologies 0:5ed42babfd71 8 * obtaining a copy of this software and associated documentation
group-Sigma-Delta-Technologies 0:5ed42babfd71 9 * files (the "Software"), to deal in the Software without
group-Sigma-Delta-Technologies 0:5ed42babfd71 10 * restriction, including without limitation the rights to use,
group-Sigma-Delta-Technologies 0:5ed42babfd71 11 * copy, modify, merge, publish, distribute, sublicense, and/or sell
group-Sigma-Delta-Technologies 0:5ed42babfd71 12 * copies of the Software, and to permit persons to whom the
group-Sigma-Delta-Technologies 0:5ed42babfd71 13 * Software is furnished to do so, subject to the following
group-Sigma-Delta-Technologies 0:5ed42babfd71 14 * conditions:
group-Sigma-Delta-Technologies 0:5ed42babfd71 15 *
group-Sigma-Delta-Technologies 0:5ed42babfd71 16 * The above copyright notice and this permission notice shall be
group-Sigma-Delta-Technologies 0:5ed42babfd71 17 * included in all copies or substantial portions of the Software.
group-Sigma-Delta-Technologies 0:5ed42babfd71 18 *
group-Sigma-Delta-Technologies 0:5ed42babfd71 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
group-Sigma-Delta-Technologies 0:5ed42babfd71 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
group-Sigma-Delta-Technologies 0:5ed42babfd71 21 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
group-Sigma-Delta-Technologies 0:5ed42babfd71 22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
group-Sigma-Delta-Technologies 0:5ed42babfd71 23 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
group-Sigma-Delta-Technologies 0:5ed42babfd71 24 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
group-Sigma-Delta-Technologies 0:5ed42babfd71 25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
group-Sigma-Delta-Technologies 0:5ed42babfd71 26 * OTHER DEALINGS IN THE SOFTWARE.
group-Sigma-Delta-Technologies 0:5ed42babfd71 27 */
group-Sigma-Delta-Technologies 0:5ed42babfd71 28
group-Sigma-Delta-Technologies 0:5ed42babfd71 29 #include "mbed.h"
group-Sigma-Delta-Technologies 0:5ed42babfd71 30 #include "features/FEATURE_BLE/ble/BLE.h"
group-Sigma-Delta-Technologies 0:5ed42babfd71 31 #include "features/FEATURE_BLE/ble/services/UARTService.h"
group-Sigma-Delta-Technologies 0:5ed42babfd71 32
group-Sigma-Delta-Technologies 0:5ed42babfd71 33 /* Serial */
group-Sigma-Delta-Technologies 0:5ed42babfd71 34 #define BAUDRATE 9600
group-Sigma-Delta-Technologies 0:5ed42babfd71 35 Serial g_Serial_pc(USBTX, USBRX, BAUDRATE);
group-Sigma-Delta-Technologies 0:5ed42babfd71 36
group-Sigma-Delta-Technologies 0:5ed42babfd71 37 /* DigitalOut */
group-Sigma-Delta-Technologies 0:5ed42babfd71 38 #define LED_ON 0
group-Sigma-Delta-Technologies 0:5ed42babfd71 39 #define LED_OFF 1
group-Sigma-Delta-Technologies 0:5ed42babfd71 40 DigitalOut g_DO_LedRed(LED_RED, LED_OFF);
group-Sigma-Delta-Technologies 0:5ed42babfd71 41 DigitalOut g_DO_LedGreen(LED_GREEN, LED_OFF);
group-Sigma-Delta-Technologies 0:5ed42babfd71 42 DigitalOut g_DO_LedBlue(LED_BLUE, LED_OFF);
group-Sigma-Delta-Technologies 0:5ed42babfd71 43 DigitalOut* g_pDO_Led = &g_DO_LedBlue;
group-Sigma-Delta-Technologies 0:5ed42babfd71 44
group-Sigma-Delta-Technologies 0:5ed42babfd71 45 /* Ticker */
group-Sigma-Delta-Technologies 0:5ed42babfd71 46 Ticker g_Ticker;
group-Sigma-Delta-Technologies 0:5ed42babfd71 47
group-Sigma-Delta-Technologies 0:5ed42babfd71 48 /* BLE */
group-Sigma-Delta-Technologies 0:5ed42babfd71 49 #define BLE_DEVICE_NAME "SDT Device"
group-Sigma-Delta-Technologies 0:5ed42babfd71 50 BLE& g_pBle = BLE::Instance(); // you can't use this name, 'ble', because this name is already declared in UARTService.h
group-Sigma-Delta-Technologies 0:5ed42babfd71 51
group-Sigma-Delta-Technologies 0:5ed42babfd71 52 /* UART service */
group-Sigma-Delta-Technologies 0:5ed42babfd71 53 UARTService* g_pUartService;
group-Sigma-Delta-Technologies 0:5ed42babfd71 54
group-Sigma-Delta-Technologies 0:5ed42babfd71 55 /* Variable */
group-Sigma-Delta-Technologies 0:5ed42babfd71 56 bool g_b_BleConnect = false;
group-Sigma-Delta-Technologies 0:5ed42babfd71 57
group-Sigma-Delta-Technologies 0:5ed42babfd71 58
group-Sigma-Delta-Technologies 0:5ed42babfd71 59
group-Sigma-Delta-Technologies 0:5ed42babfd71 60 void callbackTicker(void) {
group-Sigma-Delta-Technologies 0:5ed42babfd71 61 g_Serial_pc.printf("LED Toggle\n");
group-Sigma-Delta-Technologies 0:5ed42babfd71 62 // *g_pDO_Led = !(*g_pDO_Led);
group-Sigma-Delta-Technologies 0:5ed42babfd71 63 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 64
group-Sigma-Delta-Technologies 0:5ed42babfd71 65 void setLED(char data) {
group-Sigma-Delta-Technologies 0:5ed42babfd71 66 if (data <= 0) {
group-Sigma-Delta-Technologies 0:5ed42babfd71 67 return;
group-Sigma-Delta-Technologies 0:5ed42babfd71 68 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 69
group-Sigma-Delta-Technologies 0:5ed42babfd71 70 if (data == 'R' || data == 'r') {
group-Sigma-Delta-Technologies 0:5ed42babfd71 71 g_DO_LedRed = 0; g_DO_LedGreen = 1; g_DO_LedBlue = 1;
group-Sigma-Delta-Technologies 0:5ed42babfd71 72 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 73 else if (data == 'G' || data == 'g') {
group-Sigma-Delta-Technologies 0:5ed42babfd71 74 g_DO_LedRed = 1; g_DO_LedGreen = 0; g_DO_LedBlue = 1;
group-Sigma-Delta-Technologies 0:5ed42babfd71 75 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 76 else if (data == 'B' || data == 'b') {
group-Sigma-Delta-Technologies 0:5ed42babfd71 77 g_DO_LedRed = 1; g_DO_LedGreen = 1; g_DO_LedBlue = 0;
group-Sigma-Delta-Technologies 0:5ed42babfd71 78 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 79 else {
group-Sigma-Delta-Technologies 0:5ed42babfd71 80 g_DO_LedRed = 1; g_DO_LedGreen = 1; g_DO_LedBlue = 1;
group-Sigma-Delta-Technologies 0:5ed42babfd71 81 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 82 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 83
group-Sigma-Delta-Technologies 0:5ed42babfd71 84 void callbackBleDataWritten(const GattWriteCallbackParams* params) {
group-Sigma-Delta-Technologies 0:5ed42babfd71 85 if ((g_pUartService != NULL) && (params->handle == g_pUartService->getTXCharacteristicHandle())) {
group-Sigma-Delta-Technologies 0:5ed42babfd71 86 uint16_t bytesRead = params->len;
group-Sigma-Delta-Technologies 0:5ed42babfd71 87 const uint8_t* pBleRxBuf = params->data;
group-Sigma-Delta-Technologies 0:5ed42babfd71 88 g_Serial_pc.printf("data from BLE: %s\r\n", pBleRxBuf);
group-Sigma-Delta-Technologies 0:5ed42babfd71 89
group-Sigma-Delta-Technologies 0:5ed42babfd71 90 g_pBle.gattServer().write(g_pUartService->getRXCharacteristicHandle(), pBleRxBuf, bytesRead);
group-Sigma-Delta-Technologies 0:5ed42babfd71 91 setLED(pBleRxBuf[0]);
group-Sigma-Delta-Technologies 0:5ed42babfd71 92 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 93 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 94
group-Sigma-Delta-Technologies 0:5ed42babfd71 95 void callbackBleConnection(const Gap::ConnectionCallbackParams_t* params) {
group-Sigma-Delta-Technologies 0:5ed42babfd71 96 g_Serial_pc.printf("Connected!\n");
group-Sigma-Delta-Technologies 0:5ed42babfd71 97 g_b_BleConnect = true;
group-Sigma-Delta-Technologies 0:5ed42babfd71 98 *g_pDO_Led = LED_OFF;
group-Sigma-Delta-Technologies 0:5ed42babfd71 99 g_pDO_Led = &g_DO_LedGreen;
group-Sigma-Delta-Technologies 0:5ed42babfd71 100 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 101
group-Sigma-Delta-Technologies 0:5ed42babfd71 102 void callbackBleDisconnection(const Gap::DisconnectionCallbackParams_t* params) {
group-Sigma-Delta-Technologies 0:5ed42babfd71 103 g_Serial_pc.printf("Disconnected!\n");
group-Sigma-Delta-Technologies 0:5ed42babfd71 104 g_Serial_pc.printf("Restarting the advertising process\n\r");
group-Sigma-Delta-Technologies 0:5ed42babfd71 105 g_b_BleConnect = false;
group-Sigma-Delta-Technologies 0:5ed42babfd71 106 *g_pDO_Led = LED_OFF;
group-Sigma-Delta-Technologies 0:5ed42babfd71 107 g_pDO_Led = &g_DO_LedBlue;
group-Sigma-Delta-Technologies 0:5ed42babfd71 108 g_pBle.gap().startAdvertising();
group-Sigma-Delta-Technologies 0:5ed42babfd71 109 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 110
group-Sigma-Delta-Technologies 0:5ed42babfd71 111 void callbackBleInitComplete(BLE::InitializationCompleteCallbackContext* params) {
group-Sigma-Delta-Technologies 0:5ed42babfd71 112 BLE& ble = params->ble; // 'ble' equals g_pBle declared in global
group-Sigma-Delta-Technologies 0:5ed42babfd71 113 ble_error_t error = params->error; // 'error' has BLE_ERROR_NONE if the initialization procedure started successfully.
group-Sigma-Delta-Technologies 0:5ed42babfd71 114
group-Sigma-Delta-Technologies 0:5ed42babfd71 115 if (error == BLE_ERROR_NONE) {
group-Sigma-Delta-Technologies 0:5ed42babfd71 116 g_Serial_pc.printf("Initialization completed successfully\n");
group-Sigma-Delta-Technologies 0:5ed42babfd71 117 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 118 else {
group-Sigma-Delta-Technologies 0:5ed42babfd71 119 /* In case of error, forward the error handling to onBleInitError */
group-Sigma-Delta-Technologies 0:5ed42babfd71 120 g_Serial_pc.printf("Initialization failled\n");
group-Sigma-Delta-Technologies 0:5ed42babfd71 121 return;
group-Sigma-Delta-Technologies 0:5ed42babfd71 122 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 123
group-Sigma-Delta-Technologies 0:5ed42babfd71 124 /* Ensure that it is the default instance of BLE */
group-Sigma-Delta-Technologies 0:5ed42babfd71 125 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
group-Sigma-Delta-Technologies 0:5ed42babfd71 126 g_Serial_pc.printf("ID of BLE instance is not DEFAULT_INSTANCE\n");
group-Sigma-Delta-Technologies 0:5ed42babfd71 127 return;
group-Sigma-Delta-Technologies 0:5ed42babfd71 128 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 129
group-Sigma-Delta-Technologies 0:5ed42babfd71 130 /* Setup UARTService */
group-Sigma-Delta-Technologies 0:5ed42babfd71 131 g_pUartService = new UARTService(ble);
group-Sigma-Delta-Technologies 0:5ed42babfd71 132
group-Sigma-Delta-Technologies 0:5ed42babfd71 133 /* Setup and start advertising */
group-Sigma-Delta-Technologies 0:5ed42babfd71 134 ble.gattServer().onDataWritten(callbackBleDataWritten);
group-Sigma-Delta-Technologies 0:5ed42babfd71 135 ble.gap().onConnection(callbackBleConnection);
group-Sigma-Delta-Technologies 0:5ed42babfd71 136 ble.gap().onDisconnection(callbackBleDisconnection);
group-Sigma-Delta-Technologies 0:5ed42babfd71 137 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
group-Sigma-Delta-Technologies 0:5ed42babfd71 138 ble.gap().setAdvertisingInterval(1000); // Advertising interval in units of milliseconds
group-Sigma-Delta-Technologies 0:5ed42babfd71 139 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
group-Sigma-Delta-Technologies 0:5ed42babfd71 140 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME, (const uint8_t *)BLE_DEVICE_NAME, sizeof(BLE_DEVICE_NAME) - 1);
group-Sigma-Delta-Technologies 0:5ed42babfd71 141 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed));
group-Sigma-Delta-Technologies 0:5ed42babfd71 142 ble.gap().startAdvertising();
group-Sigma-Delta-Technologies 0:5ed42babfd71 143 g_Serial_pc.printf("Start advertising\n");
group-Sigma-Delta-Technologies 0:5ed42babfd71 144 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 145
group-Sigma-Delta-Technologies 0:5ed42babfd71 146 int main(void) {
group-Sigma-Delta-Technologies 0:5ed42babfd71 147 g_Serial_pc.printf("< Sigma Delta Technologies Inc. >\n\r");
group-Sigma-Delta-Technologies 0:5ed42babfd71 148
group-Sigma-Delta-Technologies 0:5ed42babfd71 149 /* Init BLE */
group-Sigma-Delta-Technologies 0:5ed42babfd71 150 // g_pBle.onEventsToProcess(callbackEventsToProcess);
group-Sigma-Delta-Technologies 0:5ed42babfd71 151 g_pBle.init(callbackBleInitComplete);
group-Sigma-Delta-Technologies 0:5ed42babfd71 152
group-Sigma-Delta-Technologies 0:5ed42babfd71 153 /* Check whether IC is running or not */
group-Sigma-Delta-Technologies 0:5ed42babfd71 154 g_Ticker.attach(callbackTicker, 1);
group-Sigma-Delta-Technologies 0:5ed42babfd71 155
group-Sigma-Delta-Technologies 0:5ed42babfd71 156 while (true) {
group-Sigma-Delta-Technologies 0:5ed42babfd71 157 g_pBle.waitForEvent();
group-Sigma-Delta-Technologies 0:5ed42babfd71 158 }
group-Sigma-Delta-Technologies 0:5ed42babfd71 159
group-Sigma-Delta-Technologies 0:5ed42babfd71 160 return 0;
group-Sigma-Delta-Technologies 0:5ed42babfd71 161 }