Revision 12:bf690d81b1ea, committed 2015-04-15

Comitter:

dragosIQ

Date:

Wed Apr 15 14:00:45 2015 +0000

Parent:

11:add794159852

Commit message:

c

Changed in this revision

--- a/main.cpp	Tue Dec 09 08:55:59 2014 +0000
+++ b/main.cpp	Wed Apr 15 14:00:45 2015 +0000
@@ -17,68 +17,93 @@
 #include "mbed.h"
 #include "BLEDevice.h"
 
-#include "UARTService.h"
-
-#define NEED_CONSOLE_OUTPUT 0 /* Set this if you need debug messages on the console;
-                               * it will have an impact on code-size and power consumption. */
+#define BLE_UUID_TXRX_SERVICE            0x0000 /**< The UUID of the Nordic UART Service. */
+#define BLE_UUID_TX_CHARACTERISTIC       0x0002 /**< The UUID of the TX Characteristic. */
+#define BLE_UUIDS_RX_CHARACTERISTIC      0x0003 /**< The UUID of the RX Characteristic. */
 
-#if NEED_CONSOLE_OUTPUT
-#define DEBUG(...) { printf(__VA_ARGS__); }
-#else
-#define DEBUG(...) /* nothing */
-#endif /* #if NEED_CONSOLE_OUTPUT */
+#define TXRX_BUF_LEN                     20
+
 
 BLEDevice  ble;
 DigitalOut led1(LED1);
 
-UARTService *uartServicePtr;
+// The Nordic UART Service
+static const uint8_t uart_base_uuid[] = {0x71, 0x3D, 0, 0, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
+static const uint8_t uart_tx_uuid[]   = {0x71, 0x3D, 0, 3, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
+static const uint8_t uart_rx_uuid[]   = {0x71, 0x3D, 0, 2, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
+static const uint8_t uart_base_uuid_rev[] = {0x1E, 0x94, 0x8D, 0xF1, 0x48, 0x31, 0x94, 0xBA, 0x75, 0x4C, 0x3E, 0x50, 0, 0, 0x3D, 0x71};
+
+
+uint8_t txPayload[TXRX_BUF_LEN] = {0,};
+uint8_t rxPayload[TXRX_BUF_LEN] = {0,};
+
+GattCharacteristic  txCharacteristic (uart_tx_uuid, txPayload, 1, TXRX_BUF_LEN, 
+                                      GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE);
+                                      
+GattCharacteristic  rxCharacteristic (uart_rx_uuid, rxPayload, 1, TXRX_BUF_LEN, 
+                                      GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
+                                      
+GattCharacteristic *uartChars[] = {&txCharacteristic, &rxCharacteristic};
+
+GattService         uartService(uart_base_uuid, uartChars, sizeof(uartChars) / sizeof(GattCharacteristic *));
+
 
 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
 {
-    DEBUG("Disconnected!\n\r");
-    DEBUG("Restarting the advertising process\n\r");
     ble.startAdvertising();
 }
 
-void onDataWritten(const GattCharacteristicWriteCBParams *params)
+void onDataWritten(const GattCharacteristicWriteCBParams *Handler)
 {
-    if ((uartServicePtr != NULL) && (params->charHandle == uartServicePtr->getTXCharacteristicHandle())) {
-        uint16_t bytesRead = params->len;
-        DEBUG("received %u bytes\n\r", bytesRead);
-        ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), params->data, bytesRead);
+    
+    uint8_t buf[TXRX_BUF_LEN];
+    uint16_t bytesRead;
+    
+    if (Handler->charHandle == txCharacteristic.getValueAttribute().getHandle()) 
+    {
+        ble.readCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(), buf, &bytesRead);
+        memset(txPayload, 0, TXRX_BUF_LEN);
+        memcpy(txPayload, buf, TXRX_BUF_LEN); 
+        
+        
     }
+
 }
 
-void periodicCallback(void)
+void switch_LED(void)
 {
     led1 = !led1;
+    ble.updateCharacteristicValue(rxCharacteristic.getValueAttribute().getHandle(), (const uint8_t *)"Salam de Sibiu!\n", sizeof("Salam de Sibiu!\n")-1);
+
 }
 
 int main(void)
 {
-    led1 = 1;
+
     Ticker ticker;
-    ticker.attach(periodicCallback, 1);
-
-    DEBUG("Initialising the nRF51822\n\r");
+    ticker.attach_us(switch_LED, 2000000);
+    
     ble.init();
     ble.onDisconnection(disconnectionCallback);
     ble.onDataWritten(onDataWritten);
 
-    /* setup advertising */
+
+    // setup advertising 
     ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
     ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
     ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME,
-                                     (const uint8_t *)"BLE UART", sizeof("BLE UART") - 1);
+                                    (const uint8_t *)"sBeacon", sizeof("sBeacon") - 1);
     ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
-                                     (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed));
-
+                                    (const uint8_t *)uart_base_uuid_rev, sizeof(uart_base_uuid));
+    // 100ms; in multiples of 0.625ms. 
     ble.setAdvertisingInterval(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(1000));
-    ble.startAdvertising();
 
-    UARTService uartService(ble);
-    uartServicePtr = &uartService;
+    ble.addService(uartService);
+    
+    ble.startAdvertising(); 
 
+    led1 = 1;
+    
     while (true) {
         ble.waitForEvent();
     }