Diff: main.cpp

Revision:

13:17208d6d9971

Parent:

12:85bf9d143843

Child:

14:e191f376520f

diff -r 85bf9d143843 -r 17208d6d9971 main.cpp
--- a/main.cpp	Tue Jul 11 15:26:04 2017 +0000
+++ b/main.cpp	Wed Jul 12 12:35:47 2017 +0000
@@ -36,133 +36,122 @@
   */
 
 #include "mbed.h"
-
 #include "XNucleoNFC02A1.h"
 #include "DevI2C.h"
 #include "NDefLib/NDefNfcTag.h"
 #include "NDefLib/RecordType/RecordURI.h"
 
-static volatile bool buttonPress=false; // true when the user press the message
+static volatile bool buttonPress = false; // true when the user press the message
+
+/**
+ * Callback for button press.
+ */
+static void set_button_press() {
+  buttonPress = true;
+} //if buttonPress
 
-static void set_button_press(){
-    buttonPress=true;
-}//if buttonPress
- 
- static void read_and_print_nfc_tag(NDefLib::NDefNfcTag &tag){
-    using namespace NDefLib;
+/**
+ * Reading and printing NFC tag.
+ */
+static void read_and_print_nfc_tag(NDefLib::NDefNfcTag &tag) {
+  using namespace NDefLib;
 
-    if(tag.open_session() == true){
-        printf("Open Session\r\n");
-        NDefLib::Message readMsg;
-
-        tag.read(&readMsg);
-        printf("Message Read\r\n");
+  if (tag.open_session() == true) {
+    printf("Open Session\r\n");
+    NDefLib::Message readMsg;
 
-        if(readMsg.get_N_records()==0){
-            printf("Error Read\r\n");
-        }else{
-            for(uint32_t i=0;i<readMsg.get_N_records();i++){
-                Record *r = readMsg[i];
-               // printRecord(r);
-                //-----
-                RecordURI *const temp = (RecordURI*)r;
-                printf("Read uriId: %d\r\n",temp->get_uri_id());
-                printf("Read uriType: %s\r\n",temp->get_uri_type().c_str());
-                printf("Read uriContent: %s\r\n",temp->get_content().c_str());
-                //------
-                delete r;
-            }//for
-        }//if-else
+    tag.read(&readMsg);
+    printf("Message Read\r\n");
 
-        tag.close_session();
-        printf("Close session\r\n");
-    }else{
-        printf("Error open read Session\n\r");
-    }
+    if (readMsg.get_N_records()==0) {
+      printf("Error Read\r\n");
+    } else {
+      for (uint32_t i=0;i<readMsg.get_N_records();i++) {
+        Record *r = readMsg[i];
+        //printRecord(r);
+        RecordURI *const temp = (RecordURI*)r;
+        printf("Read uriId: %d\r\n",temp->get_uri_id());
+        printf("Read uriType: %s\r\n",temp->get_uri_type().c_str());
+        printf("Read uriContent: %s\r\n",temp->get_content().c_str());
+        delete r;
+      } //for
+    } //if-else
+
+    tag.close_session();
+    printf("Close session\r\n");
+  } else {
+    printf("Error open read Session\n\r");
+  }
 }
 
 /**
- * Write a Ndef URI message linking to st.com site.
+ * Writing a Ndef URI message linking to the "st.com" website.
  */
-
 int main(void)
 {
-  
-  /*use default board pinout*/
-  DevI2C *i2cChannel = new DevI2C(XNucleoNFC02A1::DEFAULT_SDA_PIN,XNucleoNFC02A1::DEFAULT_SDL_PIN);
+  /* Using default board pinout. */
+  DevI2C i2cChannel(XNucleoNFC02A1::DEFAULT_SDA_PIN,XNucleoNFC02A1::DEFAULT_SDL_PIN);
   XNucleoNFC02A1 *nfcNucleo = XNucleoNFC02A1::instance(i2cChannel,
-                                                           XNucleoNFC02A1::DEFAULT_GPO_PIN,XNucleoNFC02A1::DEFAULT_RF_DISABLE_PIN,
-                                                           XNucleoNFC02A1::DEFAULT_LED1_PIN,XNucleoNFC02A1::DEFAULT_LED2_PIN,
-                                                           XNucleoNFC02A1::DEFAULT_LED3_PIN);
+                                                       XNucleoNFC02A1::DEFAULT_GPO_PIN,XNucleoNFC02A1::DEFAULT_RF_DISABLE_PIN,
+                                                       XNucleoNFC02A1::DEFAULT_LED1_PIN,XNucleoNFC02A1::DEFAULT_LED2_PIN,
+                                                       XNucleoNFC02A1::DEFAULT_LED3_PIN);
   
   NDefLib::NDefNfcTag& tag =nfcNucleo->get_M24LR().get_NDef_tag();
   M24LR & mM24LRp = nfcNucleo->get_M24LR();
   
-  /* Enable Energy Harvesting */
+  /* Enabling Energy Harvesting. */
   mM24LRp.enable_energy_harvesting();
   
   printf("System Initialization done: !\n\r");
   
-  /*open the i2c session with the nfc chip*/
-  if(tag.open_session() == true)
-  {
+  /* Opening the i2c session with the nfc chip. */
+  if (tag.open_session() == true) {
     printf("Session opened\n\r");
-    nfcNucleo->get_led1()=1;
+    nfcNucleo->get_led1() = 1;
     
-    /*create the NDef message and record*/
+    /* Creating the NDef message and record. */
     NDefLib::Message msg;
     NDefLib::RecordURI rUri(NDefLib::RecordURI::HTTP_WWW,"st.com/st25");
     msg.add_record(&rUri);
     
-    /*write the tag*/
-    if(tag.write(msg) == true)
-    {
+    /* Writing the tag. */
+    if (tag.write(msg) == true) {
       printf("Tag written\n\r");
-      nfcNucleo->get_led2()=1;
-    }
-    else
-    {
+      nfcNucleo->get_led2() = 1;
+    } else {
       printf("Error writing \n\r");
-      nfcNucleo->get_led1()=0;
-    }//if-else
-    
-    /*close the i2c session*/
-    if(tag.close_session() == true)
-    {
-      printf("Session closed\n\r");
-      nfcNucleo->get_led3()=1;
-    }
-    else
-    {
-      printf("Error closing the session\n\r");
-    }//if-else
+      nfcNucleo->get_led1() = 0;
+    } //if-else
     
+    /* Closing the i2c session. */
+    if (tag.close_session() == true) {
+      printf("Session closed\n\r");
+      nfcNucleo->get_led3() = 1;
+    } else {
+      printf("Error closing the session\n\r");
+    } //if-else
+  } else {
+    printf("Error opening the session\n\r");
   }
-  else
-    printf("Error opening the session\n\r");
-          
+  
 #if defined(TARGET_STM)
-    /* enable the button */
-    InterruptIn mybutton(USER_BUTTON);
-    
-    mybutton.fall(set_button_press);
+  /* enable the button */
+  InterruptIn mybutton(USER_BUTTON);
+  
+  mybutton.fall(set_button_press);
 
-    /*each second change the led status and see if the user press the button*/
-    while(1) 
-    {
-        if(buttonPress)
-        {
-            /*write the read message on console*/
-            read_and_print_nfc_tag(tag);
-            buttonPress=false;
-        }
+  /* Each second change the led status and see if the user press the button. */
+  while(1) {
+    if (buttonPress) {
+      /* Writing the read message on console. */
+      read_and_print_nfc_tag(tag);
+      buttonPress=false;
     }
+  }
 #else
-    read_and_print_nfc_tag(tag);
+  read_and_print_nfc_tag(tag);
 #endif
 }
 
 
-
-
 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/