Diff: main.cpp

Revision:

0:e910d9bb040f

Child:

2:e060367b9024

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon May 26 06:58:45 2014 +0000
@@ -0,0 +1,157 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "mbed.h"
+#include "nRF51822n.h"
+
+#define BLE_UUID_NUS_SERVICE            0x0001                       /**< The UUID of the Nordic UART Service. */
+#define BLE_UUID_NUS_TX_CHARACTERISTIC  0x0002                       /**< The UUID of the TX Characteristic. */
+#define BLE_UUID_NUS_RX_CHARACTERISTIC  0x0003                       /**< The UUID of the RX Characteristic. */
+
+#ifdef DEBUG
+#define LOG(args...)    pc.printf(args)
+
+Serial pc(USBTX, USBRX);
+#else
+#define LOG(args...)
+#endif
+
+nRF51822n   nrf;                /* BLE radio driver */
+
+DigitalOut  led1(p1);
+DigitalOut  advertisingStateLed(p30);
+
+// The Nordic UART Service
+uint8_t uart_base_uuid[] = {0x6e, 0x40, 0x01, 0x00, 0xb5, 0xa3, 0xf3, 0x93, 0xe0, 0xa9, 0xe5,0x0e, 0x24, 0xdc, 0xca, 0x9e};
+uint8_t txPayload[8] = {0,};
+uint8_t rxPayload[8] = {0,};
+GattService        uartService (uart_base_uuid);
+GattCharacteristic txCharacteristic (BLE_UUID_NUS_TX_CHARACTERISTIC, 1, 8,
+                                     GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE);
+GattCharacteristic rxCharacteristic (BLE_UUID_NUS_RX_CHARACTERISTIC, 1, 8,
+                                     GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
+
+/* Advertising data and parameters */
+GapAdvertisingData   advData;
+GapAdvertisingData   scanResponse;
+GapAdvertisingParams advParams ( GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED );
+
+uint16_t             uuid16_list[] = {BLE_UUID_NUS_SERVICE};
+
+/**************************************************************************/
+/*!
+    @brief  This custom class can be used to override any GapEvents
+            that you are interested in handling on an application level.
+*/
+/**************************************************************************/
+class GapEventHandler : public GapEvents
+{
+    //virtual void onTimeout(void) {}
+
+    virtual void onConnected(void) {
+        advertisingStateLed = 0;
+        LOG("Connected!\n\r");
+    }
+
+    /* When a client device disconnects we need to start advertising again. */
+    virtual void onDisconnected(void) {
+        nrf.getGap().startAdvertising(advParams);
+        advertisingStateLed = 1;
+        LOG("Disconnected!\n\r");
+        LOG("Restarting the advertising process\n\r");
+    }
+};
+
+/**************************************************************************/
+/*!
+    @brief  This custom class can be used to override any GattServerEvents
+            that you are interested in handling on an application level.
+*/
+/**************************************************************************/
+class GattServerEventHandler : public GattServerEvents
+{
+    virtual void onDataSent(uint16_t charHandle) {
+        if (charHandle == txCharacteristic.handle) {
+            LOG("onDataSend()\n\r");
+
+        }
+    }
+
+    virtual void onDataWritten(uint16_t charHandle) {
+        if (charHandle == txCharacteristic.handle) {
+            LOG("onDataWritten()\n\r");
+            nrf.getGattServer().readValue(txCharacteristic.handle, txPayload, 8); // Current APIs don't provide the length of the payload
+            LOG("ECHO: %s\n\r", (char *)txPayload);
+            nrf.getGattServer().updateValue(rxCharacteristic.handle, txPayload, 8);
+        }
+    }
+
+    virtual void onUpdatesEnabled(uint16_t charHandle) {
+        LOG("onUpdateEnabled\n\r");
+    }
+
+    virtual void onUpdatesDisabled(uint16_t charHandle) {
+        LOG("onUpdatesDisabled\n\r");
+    }
+
+    //virtual void onConfirmationReceived(uint16_t charHandle) {}
+};
+
+/**************************************************************************/
+/*!
+    @brief  Program entry point
+*/
+/**************************************************************************/
+int main(void)
+{
+
+    /* Setup an event handler for GAP events i.e. Client/Server connection events. */
+    nrf.getGap().setEventHandler(new GapEventHandler());
+    nrf.getGattServer().setEventHandler(new GattServerEventHandler());
+
+    /* Initialise the nRF51822 */
+    nrf.init();
+
+    /* Make sure we get a clean start */
+    nrf.reset();
+
+    /* Add BLE-Only flag and complete service list to the advertising data */
+    advData.addFlags(GapAdvertisingData::BREDR_NOT_SUPPORTED);
+    advData.addData(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS,
+                    (uint8_t*)uuid16_list, sizeof(uuid16_list));
+
+    advData.addData(GapAdvertisingData::SHORTENED_LOCAL_NAME,
+                    (uint8_t*)"BLE UART", sizeof("BLE UART") - 1);
+
+    advData.addAppearance(GapAdvertisingData::UNKNOWN);
+    nrf.getGap().setAdvertisingData(advData, scanResponse);
+
+    /* UART Service */
+    uartService.addCharacteristic(rxCharacteristic);
+    uartService.addCharacteristic(txCharacteristic);
+    nrf.getGattServer().addService(uartService);
+
+    /* Start advertising (make sure you've added all your data first) */
+    nrf.getGap().startAdvertising(advParams);
+    
+    advertisingStateLed = 1;
+
+    /* Do blinky on LED1 while we're waiting for BLE events */
+    for (;;) {
+        led1 = !led1;
+        wait(1);
+    }
+}