Dung Nguyen / Mbed 2 deprecated TimeSync

for camera

Dependencies:   BLE_API mbed nRF51822

Fork of BLE_GATT_Example by Bluetooth Low Energy

main.cpp@26:b3e90d7672f8, 2017-06-10 (annotated)

Committer:
andreydung
Date:
Sat Jun 10 00:51:10 2017 +0000
Revision:
26:b3e90d7672f8
Parent:
25:56d5b129dfd6
Child:
27:ed42554cf870
testing

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedAustin 0:cd5b6733aeb1 1 #include "mbed.h"
andresag 19:477567297aac 2 #include "ble/BLE.h"
mbedAustin 1:94152e7d8b5c 3
andresag 19:477567297aac 4 DigitalOut led(LED1, 1);
mbedAustin 9:b33f42191584 5 uint16_t customServiceUUID = 0xA000;
mbedAustin 13:62b1d32745ac 6 uint16_t readCharUUID = 0xA001;
mbedAustin 9:b33f42191584 7 uint16_t writeCharUUID = 0xA002;
mbedAustin 1:94152e7d8b5c 8
andreydung 23:8cd0bcd06533 9 const static char DEVICE_NAME[] = "timesync1"; // change this
andreydung 26:b3e90d7672f8 10 static const uint16_t uuid16_list[] = {0xA000}; //Custom UUID, FFFF is reserved for development
mbedAustin 1:94152e7d8b5c 11
andresag 22:406127954d1f 12 /* Set Up custom Characteristics */
mbedAustin 9:b33f42191584 13 static uint8_t readValue[10] = {0};
mbedAustin 12:6d1f77d0cb37 14 ReadOnlyArrayGattCharacteristic<uint8_t, sizeof(readValue)> readChar(readCharUUID, readValue);
mbedAustin 2:e84c13abc479 15
mbedAustin 9:b33f42191584 16 static uint8_t writeValue[10] = {0};
mbedAustin 12:6d1f77d0cb37 17 WriteOnlyArrayGattCharacteristic<uint8_t, sizeof(writeValue)> writeChar(writeCharUUID, writeValue);
mbedAustin 2:e84c13abc479 18
andresag 22:406127954d1f 19 /* Set up custom service */
mbedAustin 8:60ede963dfe2 20 GattCharacteristic *characteristics[] = {&readChar, &writeChar};
mbedAustin 9:b33f42191584 21 GattService customService(customServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
mbedAustin 2:e84c13abc479 22
andresag 19:477567297aac 23 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *)
mbedAustin 1:94152e7d8b5c 24 {
andresag 22:406127954d1f 25 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising();
mbedAustin 1:94152e7d8b5c 26 }
mbedAustin 0:cd5b6733aeb1 27
melmon 18:7d89c4fba362 28 void writeCharCallback(const GattWriteCallbackParams *params)
mbedAustin 3:0fb60f81f693 29 {
andresag 22:406127954d1f 30 /* Check to see what characteristic was written, by handle */
melmon 18:7d89c4fba362 31 if(params->handle == writeChar.getValueHandle()) {
andresag 22:406127954d1f 32 /* toggle LED if only 1 byte is written */
andreydung 26:b3e90d7672f8 33 if(params->len == 1) {
andreydung 26:b3e90d7672f8 34 led = 1;
andreydung 26:b3e90d7672f8 35 wait(0.5);
andreydung 26:b3e90d7672f8 36 led = 0;
mbedAustin 8:60ede963dfe2 37 }
andresag 22:406127954d1f 38 /* Update the readChar with the value of writeChar */
andresag 22:406127954d1f 39 BLE::Instance(BLE::DEFAULT_INSTANCE).gattServer().write(readChar.getValueHandle(), params->data, params->len);
mbedAustin 8:60ede963dfe2 40 }
mbedAustin 3:0fb60f81f693 41 }
andresag 22:406127954d1f 42 /*
andresag 22:406127954d1f 43 * Initialization callback
andresag 22:406127954d1f 44 */
andresag 22:406127954d1f 45 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
andresag 22:406127954d1f 46 {
andresag 22:406127954d1f 47 BLE &ble = params->ble;
andresag 22:406127954d1f 48 ble_error_t error = params->error;
andresag 22:406127954d1f 49
andresag 22:406127954d1f 50 if (error != BLE_ERROR_NONE) {
andresag 22:406127954d1f 51 return;
andresag 22:406127954d1f 52 }
mbedAustin 0:cd5b6733aeb1 53
andresag 19:477567297aac 54 ble.gap().onDisconnection(disconnectionCallback);
andresag 19:477567297aac 55 ble.gattServer().onDataWritten(writeCharCallback);
mbedAustin 2:e84c13abc479 56
andresag 22:406127954d1f 57 /* Setup advertising */
andresag 19:477567297aac 58 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); // BLE only, no classic BT
andresag 19:477567297aac 59 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); // advertising type
andresag 19:477567297aac 60 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); // add name
andresag 19:477567297aac 61 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); // UUID's broadcast in advertising packet
andresag 19:477567297aac 62 ble.gap().setAdvertisingInterval(100); // 100ms.
mbedAustin 2:e84c13abc479 63
andresag 22:406127954d1f 64 /* Add our custom service */
mbedAustin 13:62b1d32745ac 65 ble.addService(customService);
mbedAustin 2:e84c13abc479 66
andresag 22:406127954d1f 67 /* Start advertising */
andresag 19:477567297aac 68 ble.gap().startAdvertising();
andresag 22:406127954d1f 69 }
andresag 19:477567297aac 70
andresag 22:406127954d1f 71 /*
andresag 22:406127954d1f 72 * Main loop
andresag 22:406127954d1f 73 */
andresag 22:406127954d1f 74 int main(void)
andresag 22:406127954d1f 75 {
andresag 22:406127954d1f 76 /* initialize stuff */
andresag 22:406127954d1f 77 printf("\n\r********* Starting Main Loop *********\n\r");
andresag 22:406127954d1f 78
andresag 22:406127954d1f 79 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
andresag 22:406127954d1f 80 ble.init(bleInitComplete);
andresag 22:406127954d1f 81
andresag 22:406127954d1f 82 /* SpinWait for initialization to complete. This is necessary because the
andresag 22:406127954d1f 83 * BLE object is used in the main loop below. */
andresag 22:406127954d1f 84 while (ble.hasInitialized() == false) { /* spin loop */ }
andresag 22:406127954d1f 85
andresag 22:406127954d1f 86 /* Infinite loop waiting for BLE interrupt events */
mbedAustin 2:e84c13abc479 87 while (true) {
andresag 22:406127954d1f 88 ble.waitForEvent(); /* Save power */
mbedAustin 2:e84c13abc479 89 }
andresag 20:fcc752d401ec 90 }