Diff: PN532/examples/mifareclassic_ndeftoclassic/mifareclassic_ndeftoclassic.pde

Revision:

1:b5922b3b3257

Parent:

0:db8030e71f55

--- a/PN532/examples/mifareclassic_ndeftoclassic/mifareclassic_ndeftoclassic.pde	Tue Sep 13 06:01:19 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,172 +0,0 @@
-/**************************************************************************/
-/*! 
-    This examples attempts to take a Mifare Classic 1K card that has been
-    formatted for NDEF messages using mifareclassic_formatndef, and resets
-    the authentication keys back to the Mifare Classic defaults
-
-    To enable debug message, define DEBUG in PN532/PN532_debug.h
-*/
-/**************************************************************************/
-
-#include <SPI.h>
-#include <PN532_SPI.h>
-#include "PN532.h"
-
-PN532_SPI pn532spi(SPI, 10);
-PN532 nfc(pn532spi);
-
-
-#define NR_SHORTSECTOR          (32)    // Number of short sectors on Mifare 1K/4K
-#define NR_LONGSECTOR           (8)     // Number of long sectors on Mifare 4K
-#define NR_BLOCK_OF_SHORTSECTOR (4)     // Number of blocks in a short sector
-#define NR_BLOCK_OF_LONGSECTOR  (16)    // Number of blocks in a long sector
-
-// Determine the sector trailer block based on sector number
-#define BLOCK_NUMBER_OF_SECTOR_TRAILER(sector) (((sector)<NR_SHORTSECTOR)? \
-  ((sector)*NR_BLOCK_OF_SHORTSECTOR + NR_BLOCK_OF_SHORTSECTOR-1):\
-  (NR_SHORTSECTOR*NR_BLOCK_OF_SHORTSECTOR + (sector-NR_SHORTSECTOR)*NR_BLOCK_OF_LONGSECTOR + NR_BLOCK_OF_LONGSECTOR-1))
-
-// Determine the sector's first block based on the sector number
-#define BLOCK_NUMBER_OF_SECTOR_1ST_BLOCK(sector) (((sector)<NR_SHORTSECTOR)? \
-  ((sector)*NR_BLOCK_OF_SHORTSECTOR):\
-  (NR_SHORTSECTOR*NR_BLOCK_OF_SHORTSECTOR + (sector-NR_SHORTSECTOR)*NR_BLOCK_OF_LONGSECTOR))
-
-// The default Mifare Classic key
-static const uint8_t KEY_DEFAULT_KEYAB[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
-
-void setup(void) {
-  Serial.begin(115200);
-  Serial.println("Looking for PN532...");
-
-  nfc.begin();
-
-  uint32_t versiondata = nfc.getFirmwareVersion();
-  if (! versiondata) {
-    Serial.print("Didn't find PN53x board");
-    while (1); // halt
-  }
-  
-  // Got ok data, print it out!
-  Serial.print("Found chip PN5"); Serial.println((versiondata>>24) & 0xFF, HEX); 
-  Serial.print("Firmware ver. "); Serial.print((versiondata>>16) & 0xFF, DEC); 
-  Serial.print('.'); Serial.println((versiondata>>8) & 0xFF, DEC);
-  
-  // configure board to read RFID tags
-  nfc.SAMConfig();
-}
-
-void loop(void) {
-  uint8_t success;                          // Flag to check if there was an error with the PN532
-  uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 };  // Buffer to store the returned UID
-  uint8_t uidLength;                        // Length of the UID (4 or 7 bytes depending on ISO14443A card type)
-  bool authenticated = false;               // Flag to indicate if the sector is authenticated
-  uint8_t blockBuffer[16];                  // Buffer to store block contents
-  uint8_t blankAccessBits[3] = { 0xff, 0x07, 0x80 };
-  uint8_t idx = 0;
-  uint8_t numOfSector = 16;                 // Assume Mifare Classic 1K for now (16 4-block sectors)
-  
-  Serial.println("Place your NDEF formatted Mifare Classic 1K card on the reader");
-  Serial.println("and press any key to continue ...");
-  
-  // Wait for user input before proceeding
-  while (!Serial.available());
-  while (Serial.available()) Serial.read();
-    
-  // Wait for an ISO14443A type card (Mifare, etc.).  When one is found
-  // 'uid' will be populated with the UID, and uidLength will indicate
-  // if the uid is 4 bytes (Mifare Classic) or 7 bytes (Mifare Ultralight)
-  success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, uid, &uidLength);
-
-  if (success) 
-  {
-    // We seem to have a tag ...
-    // Display some basic information about it
-    Serial.println("Found an ISO14443A card/tag");
-    Serial.print("  UID Length: ");Serial.print(uidLength, DEC);Serial.println(" bytes");
-    Serial.print("  UID Value: ");
-    nfc.PrintHex(uid, uidLength);
-    Serial.println("");
-    
-    // Make sure this is a Mifare Classic card
-    if (uidLength != 4)
-    {
-      Serial.println("Ooops ... this doesn't seem to be a Mifare Classic card!"); 
-      return;
-    }    
-    
-    Serial.println("Seems to be a Mifare Classic card (4 byte UID)");
-    Serial.println("");
-    Serial.println("Reformatting card for Mifare Classic (please don't touch it!) ... ");
-
-    // Now run through the card sector by sector
-    for (idx = 0; idx < numOfSector; idx++)
-    {
-      // Step 1: Authenticate the current sector using key B 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
-      success = nfc.mifareclassic_AuthenticateBlock (uid, uidLength, BLOCK_NUMBER_OF_SECTOR_TRAILER(idx), 1, (uint8_t *)KEY_DEFAULT_KEYAB);
-      if (!success)
-      {
-        Serial.print("Authentication failed for sector "); Serial.println(numOfSector);
-        return;
-      }
-      
-      // Step 2: Write to the other blocks
-      if (idx == 16)
-      {
-        memset(blockBuffer, 0, sizeof(blockBuffer));
-        if (!(nfc.mifareclassic_WriteDataBlock((BLOCK_NUMBER_OF_SECTOR_TRAILER(idx)) - 3, blockBuffer)))
-        {
-          Serial.print("Unable to write to sector "); Serial.println(numOfSector);
-          return;
-        }
-      }
-      if ((idx == 0) || (idx == 16))
-      {
-        memset(blockBuffer, 0, sizeof(blockBuffer));
-        if (!(nfc.mifareclassic_WriteDataBlock((BLOCK_NUMBER_OF_SECTOR_TRAILER(idx)) - 2, blockBuffer)))
-        {
-          Serial.print("Unable to write to sector "); Serial.println(numOfSector);
-          return;
-        }
-      }
-      else
-      {
-        memset(blockBuffer, 0, sizeof(blockBuffer));
-        if (!(nfc.mifareclassic_WriteDataBlock((BLOCK_NUMBER_OF_SECTOR_TRAILER(idx)) - 3, blockBuffer)))
-        {
-          Serial.print("Unable to write to sector "); Serial.println(numOfSector);
-          return;
-        }
-        if (!(nfc.mifareclassic_WriteDataBlock((BLOCK_NUMBER_OF_SECTOR_TRAILER(idx)) - 2, blockBuffer)))
-        {
-          Serial.print("Unable to write to sector "); Serial.println(numOfSector);
-          return;
-        }
-      }
-      memset(blockBuffer, 0, sizeof(blockBuffer));
-      if (!(nfc.mifareclassic_WriteDataBlock((BLOCK_NUMBER_OF_SECTOR_TRAILER(idx)) - 1, blockBuffer)))
-      {
-        Serial.print("Unable to write to sector "); Serial.println(numOfSector);
-        return;
-      }
-      
-      // Step 3: Reset both keys to 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
-      memcpy(blockBuffer, KEY_DEFAULT_KEYAB, sizeof(KEY_DEFAULT_KEYAB));
-      memcpy(blockBuffer + 6, blankAccessBits, sizeof(blankAccessBits));
-      blockBuffer[9] = 0x69;
-      memcpy(blockBuffer + 10, KEY_DEFAULT_KEYAB, sizeof(KEY_DEFAULT_KEYAB));
-
-      // Step 4: Write the trailer block
-      if (!(nfc.mifareclassic_WriteDataBlock((BLOCK_NUMBER_OF_SECTOR_TRAILER(idx)), blockBuffer)))
-      {
-        Serial.print("Unable to write trailer block of sector "); Serial.println(numOfSector);
-        return;
-      }
-    }
-  }
-  
-  // Wait a bit before trying again
-  Serial.println("\n\nDone!");
-  delay(1000);
-  Serial.flush();
-  while(Serial.available()) Serial.read();
-}
\ No newline at end of file