I currently have the following situation:
I am trying to write a simple String
to a UPM Racetrack NFC Tag. I am using Java with javax.smartcardio
for this. I am using the ACR1252 writer/reader for this, and I have developed a simple java application for this.
Information about the card
- ATR: 3B8F8001804F0CA0000003060300030000000068
- Standard: 03 -> ISO14443A Part 3
- Card Name: 0003 -> MIFARE ULTRALIGHT
This is my code of the util class so far:
public abstract class NFCUtils {
public static Card connect() throws Exception {
TerminalFactory factory = TerminalFactory.getDefault();
List<CardTerminal> terminals = factory.terminals().list();
//Get the first terminal in the list
CardTerminal terminal = terminals.get(0);
System.out.println("Waiting for card....");
terminal.waitForCardPresent(0);
//Establish a connection
Card card = terminal.connect("*");
System.out.println("Card: " + card);
//Get ATR
byte[] baATR = card.getATR().getBytes();
System.out.println("ATR: " + NFCUtils.toString(baATR));
return card;
}
public static CommandAPDU createCommand(String data) {
int CLA = 0xFF;
int INS = 0xC2;
int P1 = 0x00;
int P2 = 0x01;
int LE = 0x04;
byte[] byteData = data.getBytes();
//APDU: CLA, INS, P1, P2, Data, Offset, DataLenght
CommandAPDU command = new CommandAPDU((byte) CLA, (byte) INS, (byte) P1, (byte) P2, byteData, 0x00, LE);
return command;
}
public static ResponseAPDU writeCommandToTag(Card card, CommandAPDU command) throws CardException {
CardChannel channel = card.getBasicChannel();
ResponseAPDU commandResponse = channel.transmit(command);
return commandResponse;
}
The problem is that the response always is: C003016300
, which means No error information present. I am totally stuck on this, due to the lack of error information. So my question is: how can I debug this and is there maybe something obvious wrong with my command?
Any help is greatly appreciated!