File content as of revision 0:2c02b2e821f2:

/**
   @file
   @brief Example of using the XBeeApi library to receive a message
          via a callback method
          This example has a minimum of error checking in order
          to keep the code compact

   @author John Bailey 

   @copyright Copyright 2014 John Bailey

   @section LICENSE
   
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 "xbeeapi.hpp"

Serial pc(USBTX, USBRX); // tx, rx

/* TODO: You may need to change these based on the device/connections that you're using */ 
#define XBEE_TX_PIN PTA2
#define XBEE_RX_PIN PTA1

/* ID for the Personal Area Network we're going to join */
const XBeeApiCmdAt::panId_t myPANId = 1000;

/* Network channel to use */
const XBeeApiCmdAt::channel_t myChannelId = 14;

XBeeDevice xbeeDevice( XBEE_TX_PIN, XBEE_RX_PIN, NC, NC );

class FrameDumper : public XBeeApiRxFrameDecoder
{
    public:
    FrameDumper( XBeeDevice* p_device ) : XBeeApiRxFrameDecoder( p_device )
    {
    }

    virtual void frameRxCallback( XBeeApiRxFrame* const p_frame )
    {
        const uint8_t* outData;
        uint16_t outLoop;
        pc.printf(" API ID: 0x%02X\r\n",p_frame->getApiId() );
        p_frame->getDataPtr( 0, &outData, &outLoop );
        pc.printf("Data [%d]: ",outLoop);
        for( ;
            outLoop > 0;
            outLoop--,outData++ )
        {
            pc.printf("0x%02X ",*outData);
        }
        pc.printf("\r\n");
    }
};

int main() {
    /* This example will use the blocking API for simplicity */   
    XBeeApiCmdAtBlocking atIf( &xbeeDevice );

    XBeeDevice::XBeeDeviceReturn_t status;

    /* This is the object that will be receiving the RX call-backs */
    FrameDumper decoder( &xbeeDevice );

    /* Get API mode 2 set up - this is a pre-requisit to using other XBeeApi functions.
       This step may not be needed in the case that the XBee has already been configured
       to use Mode 2 and the setting has been stored in NV */
    status = xbeeDevice.setUpApi();

    if( status == XBeeDevice::XBEEDEVICE_OK )
    {
        /* Set up a peer-to-peer network using the specified PAN and channel */
        if( xbeeSetNetworkTypeP2P( &atIf, myPANId, myChannelId ) )
        {
            while( 1 )
            {
                /* Wait while frames are received */
            }
        }
        else
        {
            pc.printf("xbeeSetNetworkTypeP2P failed\r\n");
        }
    }
    else
    {
        pc.printf("setUpApi failed with status %d\r\n",status);
    }
}