File content as of revision 5:8242f251bcac:

#include "ADXL345_I2C.h"
#include "mbed.h"
#include "ble/BLE.h"
#include "ble/services/UARTService.h"
#include "Serial.h"

#define NEED_CONSOLE_OUTPUT 1 /* Set this if you need debug messages on the console;
                               * it will have an impact on code-size and power consumption. */

#if NEED_CONSOLE_OUTPUT
#define DEBUG(...) { printf(__VA_ARGS__); }
#else
#define DEBUG(...) /* nothing */
#endif /* #if NEED_CONSOLE_OUTPUT */

 ADXL345_I2C accelerometer(p30, p7);
 BLEDevice  ble;
 DigitalOut led1(LED1);
 Serial uart1(USBTX,USBRX);
 UARTService *uartServicePtr;
 uint8_t sFlag = 0;
 
 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
{
    DEBUG("Disconnected!\n\r");
    DEBUG("Restarting the advertising process\n\r");
    ble.startAdvertising();
}

void connectionCallback(const Gap::ConnectionCallbackParams_t *params) {
   
    DEBUG("Connected!\n\r");
    
}

uint8_t b[40]={'a','d','q','w'};
void onDataWritten(const GattWriteCallbackParams *params)
{
    if ((uartServicePtr != NULL) && (params->handle == uartServicePtr->getTXCharacteristicHandle())) {
        uint16_t bytesRead = params->len;
        DEBUG("received %u bytes %s\n\r", bytesRead,params->data);
        /*uint16_t bytesRead = params->len;
        DEBUG("received %u bytes\n\r", bytesRead);
        ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), params->data, bytesRead);*/
    }
}

void periodicCallback(void)
{
    led1 = !led1;
}

uint8_t c;
void uartRx(void)
{
    
    c = uart1.getc();
 
    if(sFlag < 39)
        b[sFlag++] = c;    
        
    if(c == '\r' || c == '\n' || sFlag == 15)
    {
        ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (const uint8_t*)b/*params->data*/, sFlag/*bytesRead*/);
        sFlag = 0;
    }
}



 int main() {
     uart1.baud(9600);
     int readings[3] = {0, 0, 0};
     uart1.printf("Starting ADXL345 test...\n");
     wait(.001);
     uart1.printf("Device ID is: 0x%02x\n", accelerometer.getDeviceID());
     wait(.001);
    
    //Go into standby mode to configure the device.
    accelerometer.setPowerControl(0x00);

    //Full resolution, +/-16g, 4mg/LSB.
    accelerometer.setDataFormatControl(0x0B);
    
    //3.2kHz data rate.
    accelerometer.setDataRate(ADXL345_3200HZ);

    //Measurement mode.
    accelerometer.setPowerControl(0x08);
    
    led1 = 1;
    uart1.baud(9600);
    Ticker ticker;
    ticker.attach(periodicCallback, 1);
    uart1.attach(uartRx,Serial::RxIrq);
    
    
    DEBUG("Initialising the nRF51822\n\r");
    ble.init();
    ble.onDisconnection(disconnectionCallback);
    ble.onConnection(connectionCallback);
    ble.onDataWritten(onDataWritten);

    /* 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);
    ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
                                     (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed));

    ble.setAdvertisingInterval(1000); /* 1000ms; in multiples of 0.625ms. */
    ble.startAdvertising();

    UARTService uartService(ble);
    uartServicePtr = &uartService;
 
     while (1) 
     {
         ble.waitForEvent();
         wait(0.1);
         accelerometer.getOutput(readings);
         uart1.printf("%i, %i, %i\n", (int16_t)readings[0], (int16_t)readings[1], (int16_t)readings[2]);
         ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (const uint8_t*)readings[0]/*params->data*/, sizeof(readings),false/*bytesRead*/);
         ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (const uint8_t*)readings[1]/*params->data*/, sizeof(readings),false/*bytesRead*/);
         ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (const uint8_t*)readings[2]/*params->data*/, sizeof(readings),false/*bytesRead*/);   
     }
 
 }