ST
This application provides a set of demos with X-NUCLEO-NFC01A1 expansion board.
Dependencies: NDefLib X_NUCLEO_NFC01A1 mbed
Fork of
X-MBED-NFC1
by 
Giovanni Visentini
This application provides a set of demos with X-NUCLEO-NFC01A1 expansion board.
The available demos are:
- SAMPLE_WRITE_URL: write a tag with the ST home page URL
- SAMPLE_COUNT_CLICK: create a custom tag to count and report the user button clicks.
- SAMPLE_WRITE_AND_CHANGE_ALL: write a tag with all the supported records and update the tag contents when the user button is pressed.
- SAMPLE_LOCK_TAG_CONTENT: use the M24SR component API to set the NFC tag as read-only.
To enable the different demos comment/uncomment the SAMPLE_* macros provided in main.cpp .
Diff: Samples/Sample_countClick.cpp
- Revision:
- 4:f40b3505070c
- Child:
- 5:3b300c8235b7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Samples/Sample_countClick.cpp Thu Dec 03 13:44:40 2015 +0000
@@ -0,0 +1,86 @@
+
+#include "mbed.h"
+
+#include "Type4NfcTagSTM24SR.h"
+#include "NDefLib/RecordType/RecordText.h"
+
+#include "X_NUCLEO_NFC01A1.h"
+
+class MyRecord : public NDefLib::RecordText{
+
+private:
+ char nClickStringBuffer[12];
+ uint32_t nClick;
+
+ void syncTextValue(){
+ sprintf(nClickStringBuffer,"%d",nClick);
+ setText(nClickStringBuffer);
+ }
+
+public:
+
+ MyRecord():nClick(0){
+ syncTextValue();
+ }
+
+ void incrementClick(){
+ nClick++;
+ syncTextValue();
+ }
+
+};
+
+static void writeMessage(X_NUCLEO_NFC01A1 *nfcNucleo,NDefLib::Message &msg){
+ Type4NfcTagSTM24SR tag(nfcNucleo->getM24SR());
+ //open the i2c session with the nfc chip
+ if(tag.openSession()){
+ nfcNucleo->getLed1()=! nfcNucleo->getLed1();
+
+ //write the tag
+ if(tag.write(msg)){
+ nfcNucleo->getLed2()=!nfcNucleo->getLed2();
+ }//if
+
+ //close the i2c session
+ if(tag.closeSession())
+ nfcNucleo->getLed3()=!nfcNucleo->getLed3();
+ }//if open session
+}//writeMessage
+
+
+static volatile bool buttonPress=false;
+
+static void setButtonPress(){
+ buttonPress=true;
+}//if buttonPress
+
+void sample_countClick() {
+ I2C i2cChannel(X_NUCLEO_NFC01A1::DEFAULT_SDA_PIN,X_NUCLEO_NFC01A1::DEFAULT_SDL_PIN);
+ i2cChannel.frequency(400000);
+
+ X_NUCLEO_NFC01A1 *nfcNucleo = X_NUCLEO_NFC01A1::Instance(i2cChannel);
+ //create the wrapper for use the NdefLib
+ Type4NfcTagSTM24SR tag(nfcNucleo->getM24SR());
+
+ InterruptIn userButton(USER_BUTTON);
+ userButton.fall(setButtonPress);
+
+ //create the NDef message and record
+ NDefLib::Message msg;
+ MyRecord rClickCount;
+ msg.addRecord(&rClickCount);
+
+ writeMessage(nfcNucleo,msg);
+
+ while(true){
+
+ if(buttonPress){
+ rClickCount.incrementClick();
+ writeMessage(nfcNucleo,msg);
+ buttonPress=false;
+ }//if
+ //wait next event
+ __WFE();
+ }//while
+
+}//sample_countClick
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