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Dependencies:   BLE_API mbed nRF51822

Fork of BLE_GATT_Example by Bluetooth Low Energy

main.cpp@29:48287117fa46, 2017-06-10 (annotated)

Committer:
andreydung
Date:
Sat Jun 10 03:05:02 2017 +0000
Revision:
29:48287117fa46
Parent:
28:382c630bae02
Child:
30:27466f74458c
worked!!!

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
andreydung 27:ed42554cf870 4 DigitalOut led(P0_19, 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 28:382c630bae02 9 const static char DEVICE_NAME[] = "timesync1"; // change this
andreydung 27:ed42554cf870 10 static const uint16_t uuid16_list[] = {0xFFFF}; //Custom UUID, FFFF is reserved for development
mbedAustin 1:94152e7d8b5c 11
mbedAustin 9:b33f42191584 12 static uint8_t writeValue[10] = {0};
mbedAustin 12:6d1f77d0cb37 13 WriteOnlyArrayGattCharacteristic<uint8_t, sizeof(writeValue)> writeChar(writeCharUUID, writeValue);
mbedAustin 2:e84c13abc479 14
andresag 22:406127954d1f 15 /* Set up custom service */
andreydung 28:382c630bae02 16 GattCharacteristic *characteristics[] = {&writeChar};
mbedAustin 9:b33f42191584 17 GattService customService(customServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
mbedAustin 2:e84c13abc479 18
andreydung 27:ed42554cf870 19 /*
andreydung 27:ed42554cf870 20 * Restart advertising when phone app disconnects
andreydung 27:ed42554cf870 21 */
andresag 19:477567297aac 22 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *)
mbedAustin 1:94152e7d8b5c 23 {
andreydung 27:ed42554cf870 24 led = 1; // just in case
andresag 22:406127954d1f 25 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising();
mbedAustin 1:94152e7d8b5c 26 }
mbedAustin 0:cd5b6733aeb1 27
andreydung 27:ed42554cf870 28 /*
andreydung 27:ed42554cf870 29 * Handle writes to writeCharacteristic
andreydung 27:ed42554cf870 30 */
melmon 18:7d89c4fba362 31 void writeCharCallback(const GattWriteCallbackParams *params)
mbedAustin 3:0fb60f81f693 32 {
andresag 22:406127954d1f 33 /* Check to see what characteristic was written, by handle */
melmon 18:7d89c4fba362 34 if(params->handle == writeChar.getValueHandle()) {
andreydung 27:ed42554cf870 35 // since LED is pullup mode
andreydung 27:ed42554cf870 36 led = 0;
andreydung 27:ed42554cf870 37 wait(1.0);
andreydung 27:ed42554cf870 38 led = 1;
mbedAustin 8:60ede963dfe2 39 }
mbedAustin 3:0fb60f81f693 40 }
andreydung 28:382c630bae02 41
andreydung 28:382c630bae02 42
andresag 22:406127954d1f 43 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
andresag 22:406127954d1f 44 {
andresag 22:406127954d1f 45 BLE &ble = params->ble;
andresag 22:406127954d1f 46 ble_error_t error = params->error;
andresag 22:406127954d1f 47
andresag 22:406127954d1f 48 if (error != BLE_ERROR_NONE) {
andresag 22:406127954d1f 49 return;
andresag 22:406127954d1f 50 }
mbedAustin 0:cd5b6733aeb1 51
andresag 19:477567297aac 52 ble.gap().onDisconnection(disconnectionCallback);
andresag 19:477567297aac 53 ble.gattServer().onDataWritten(writeCharCallback);
mbedAustin 2:e84c13abc479 54
andresag 22:406127954d1f 55 /* Setup advertising */
andresag 19:477567297aac 56 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); // BLE only, no classic BT
andresag 19:477567297aac 57 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); // advertising type
andresag 19:477567297aac 58 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); // add name
andresag 19:477567297aac 59 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); // UUID's broadcast in advertising packet
andreydung 29:48287117fa46 60 ble.gap().setAdvertisingInterval(500); // 500ms.
mbedAustin 2:e84c13abc479 61
andresag 22:406127954d1f 62 /* Add our custom service */
mbedAustin 13:62b1d32745ac 63 ble.addService(customService);
mbedAustin 2:e84c13abc479 64
andresag 22:406127954d1f 65 /* Start advertising */
andresag 19:477567297aac 66 ble.gap().startAdvertising();
andresag 22:406127954d1f 67 }
andresag 19:477567297aac 68
andresag 22:406127954d1f 69 /*
andresag 22:406127954d1f 70 * Main loop
andresag 22:406127954d1f 71 */
andresag 22:406127954d1f 72 int main(void)
andreydung 29:48287117fa46 73 {
andreydung 29:48287117fa46 74 NRF_TWI0->ENABLE = TWI_ENABLE_ENABLE_Enabled << TWI_ENABLE_ENABLE_Pos;
andreydung 29:48287117fa46 75 NRF_POWER->TASKS_LOWPWR = 1;
andreydung 29:48287117fa46 76 NRF_ADC->ENABLE = (ADC_ENABLE_ENABLE_Disabled << ADC_ENABLE_ENABLE_Pos);
andreydung 29:48287117fa46 77 NRF_POWER->DCDCEN = 0x00000001;
andreydung 29:48287117fa46 78
andresag 22:406127954d1f 79 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
andresag 22:406127954d1f 80 ble.init(bleInitComplete);
andreydung 29:48287117fa46 81 ble.setTxPower(-20);
andresag 22:406127954d1f 82
andresag 22:406127954d1f 83 /* SpinWait for initialization to complete. This is necessary because the
andresag 22:406127954d1f 84 * BLE object is used in the main loop below. */
andresag 22:406127954d1f 85 while (ble.hasInitialized() == false) { /* spin loop */ }
andresag 22:406127954d1f 86
andresag 22:406127954d1f 87 /* Infinite loop waiting for BLE interrupt events */
mbedAustin 2:e84c13abc479 88 while (true) {
andresag 22:406127954d1f 89 ble.waitForEvent(); /* Save power */
mbedAustin 2:e84c13abc479 90 }
andresag 20:fcc752d401ec 91 }