main.cpp

00001 
00002 #include "mbed.h"
00003 
00004 #include "X_NUCLEO_NFC01A1.h"
00005 #include "NDefLib/NDefNfcTag.h"
00006 #include "NDefLib/Message.h"
00007 #include "NDefLib/RecordType/RecordURI.h"
00008 Serial pc(SERIAL_TX, SERIAL_RX);
00009 DigitalOut myled(LED1);
00010 InterruptIn interrupt(D12);
00011 /**
00012  * Write a Ndef URI message linking to st.com site.
00013  */
00014  
00015  
00016 class WriteUriCallbacks : public NDefLib::NDefNfcTag::Callbacks{
00017  
00018     DigitalOut &mOnOpenSession;
00019     DigitalOut &mOnWrite;
00020     DigitalOut &mOnCloseSession;
00021  
00022 public:
00023  
00024     /**
00025      * create the callback chain
00026      * @param onOpenSession led to switch on when the session open
00027      * @param onWrite led to switch on when the write end
00028      * @param onCloseSession led to switch on when the session end
00029      */
00030     WriteUriCallbacks(DigitalOut &onOpenSession,DigitalOut &onWrite,
00031             DigitalOut &onCloseSession):mOnOpenSession(onOpenSession),
00032                     mOnWrite(onWrite),mOnCloseSession(onCloseSession){};
00033  
00034     /**
00035      * crate the new message and write it
00036      * @param tag tag where write the message
00037      * @param success true if the session correctly open
00038      */
00039     virtual void onSessionOpen(NDefLib::NDefNfcTag *tag,bool success){
00040         if(!success){
00041             printf("Error opening the session\r\n");
00042         }//else
00043         printf("Session opened\r\n");
00044         //ask to have an interrupt when the command finish
00045         mOnOpenSession=1;
00046         NDefLib::Message msg;
00047  
00048         NDefLib::RecordURI rUri(NDefLib::RecordURI::HTTP_WWW,"http://www.st.com");
00049         msg.addRecord(&rUri);
00050  
00051         tag->write(msg);
00052     }
00053  
00054     /**
00055      * request to close the session
00056      * @param tag tag where close the session
00057      * @param success true if the message is correctly wrote
00058      * @param message wrote
00059      */
00060     virtual void onMessageWrite(NDefLib::NDefNfcTag *tag,bool success,
00061             const NDefLib::Message&){
00062  
00063         if(!success)
00064             printf("Error writing tag!\r\n");
00065         else{
00066             printf("Tag written!\r\n");
00067             mOnWrite=1;
00068         }//if-else
00069         tag->closeSession();
00070     }
00071  
00072     /**
00073      * switch on the led
00074      * @param tag where the session is closed
00075      * @param success true if the session is correctly close
00076      */
00077     virtual void onSessionClose(NDefLib::NDefNfcTag*,bool success){
00078         if(success){
00079             printf("Error closing the session\r\n");
00080             mOnCloseSession=1;
00081         }else
00082             printf("Error opening the session\r\n");
00083     }
00084  
00085 };
00086  
00087 /** variable set to true when we receive an interrupt from the nfc component*/
00088 static bool nfcInterruptFlag;
00089  
00090 /** Nfc ISR called when the nfc component has a message ready*/
00091 static void nfcInterruptCallback(){
00092     nfcInterruptFlag=true;
00093 }//nfcInterruptCallback
00094  
00095 void init(){
00096     pc.baud(115200);
00097     pc.format(8,SerialBase::None, 1);
00098 }
00099  
00100 void tagDetect(){
00101     pc.printf("Detected !!! \n");
00102 } 
00103 int main(int argc,char *args[]){
00104     (void)argc; (void)args;
00105  
00106     //create the nfc component
00107     I2C i2cChannel(X_NUCLEO_NFC01A1::DEFAULT_SDA_PIN,X_NUCLEO_NFC01A1::DEFAULT_SDL_PIN);
00108     X_NUCLEO_NFC01A1 *nfcNucleo = X_NUCLEO_NFC01A1::Instance(i2cChannel,&nfcInterruptCallback,
00109             X_NUCLEO_NFC01A1::DEFAULT_GPO_PIN,X_NUCLEO_NFC01A1::DEFAULT_RF_DISABLE_PIN,
00110             X_NUCLEO_NFC01A1::DEFAULT_LED1_PIN,X_NUCLEO_NFC01A1::DEFAULT_LED2_PIN,
00111             X_NUCLEO_NFC01A1::DEFAULT_LED3_PIN);
00112  
00113     //No call back needed since default behavior is sync
00114     nfcNucleo->getM24SR().GetSession();
00115     nfcNucleo->getM24SR().ManageI2CGPO(I2C_ANSWER_READY); //switch to async mode
00116  
00117     NDefLib::NDefNfcTag &tag = nfcNucleo->getM24SR().getNDefTag();
00118     printf("System Init done!\n\r");
00119  
00120     //crate the callback to use for write a tag
00121     WriteUriCallbacks NDefCallback(nfcNucleo->getLed1(),nfcNucleo->getLed2(),nfcNucleo->getLed3());
00122     tag.setCallback(&NDefCallback); //set the callback
00123     tag.openSession(); //start the callback chain
00124  
00125     printf("Start Main Loop\n\r");
00126     while(true){
00127         if(nfcInterruptFlag){
00128             nfcInterruptFlag=false;
00129             //manage an async event from the nfc component
00130             nfcNucleo->getM24SR().ManageEvent();
00131  
00132         }//if
00133         __WFE();
00134     }//while
00135  
00136     //return 0;
00137 }