收发失败的银河S3具有NFC-B卡 [英] Transceive failed on Galaxy S3 with a NFC-B card
问题描述
我正在为Android读取非接触式智能卡的应用程序，但我有一些问题，我的Galaxy S3。
之前描述的问题，我需要precise可在PC上，我可以完全与卡使用来自不同厂商的Java和NFC读者smartcardio API沟通。
I am working on an application for Android reading a contactless smart card but I have some problems with my Galaxy S3. Before to describe problems, I need to precise that on a PC, I can communicate perfectly with the card using the smartcardio API in Java and NFC readers from different manufacturers.
此卡被检测为NFC协议栈支持技术IsoDep和NfcB。
然而，当我把我的APDU命令收发，我得到一个异常的Transceive失败。我曾尝试增加超时，但没有更好的结果。
This card is detected as supporting technologies "IsoDep" and "NfcB" by the NFC stack. However, when I send my apdu command with "transceive", I get an exception "Transceive failed". I have tried to increase timeout but no better result.
iso = IsoDep.get(tag);
if (iso!=null) {
try {
iso.connect();
// txMessage is a TextView object used for debugging purpose
txMessage.setText("Max:"+iso.getMaxTransceiveLength()+" timeout:"+iso.getTimeout()+" connected:"+iso.isConnected());
iso.setTimeout(2000);
txMessage.setText("Max:"+iso.getMaxTransceiveLength()+" timeout:"+iso.getTimeout()+" connected:"+iso.isConnected());
byte[] command = new byte[] {(byte) 0x00, (byte) 0xA4, (byte) 0x04,(byte) 0x00, (byte) 0x06,(byte) 0xA0,(byte) 0x00,(byte) 0x00, (byte) 0x00,(byte) 0x12,(byte) 0x00};
byte[] response = iso.transceive(command);
} catch (IOException e) {
txMessage.setText(txMessage.getText()+"\n"+e.getMessage());
}
}
在运行此code，我得到：
When running this code, I get:
Max:261 timeout:309 connected: true
Max:261 timeout:2474 connected: true
Transceive failed
我已经注意到了，这款显卡要求是非常接近的NFC天线的工作。我需要删除为了我的手机的附加的塑料保护盒（不封底）卡将被检测到（我猜供电）。
I have noticed that this card requires to be very close of the NFC antenna to work. I need to remove the additional plastic protection case (not the back cover) of my phone in order the card would be detected (I guess powered).
在后，我读<一个href=\"http://stackoverflow.com/questions/10831464/nfc-typeb-card-not-getting-detected-by-any-nfc-application-likenfctaginfo\">NFC （：nfctaginfo等）和<一键入b卡没有得到任何NFC应用程序检测href=\"http://stackoverflow.com/questions/12103521/android-isodep-isconnected-returns-false-and-maximum-transceive-length0-byte\">Android isodep.isConnected（）返回false和最大的Transceive长度：？0字节，B型卡和其他几个其他职位（的 http://forum.xda-developers.com/showthread.php?t=1705970 ，的 HTTP：//$c$c.google.com/p/android/issues/detail ID = 35960 ），但我没有找到一个解决方案。
Before to post, I have read NFC typeb card not getting detected by any NFC application (like:nfctaginfo) and Android isodep.isConnected() returns false and maximum Transceive length:0 byte ,for type B card.? and several other posts elsewhere (http://forum.xda-developers.com/showthread.php?t=1705970 , http://code.google.com/p/android/issues/detail?id=35960 ) but I did not find a solution.
一个可能的解决方案是将尝试与外部天线通信，但我不知道从哪里连接呢？在电池连接器里没有+和 -
A possible solution would be to try to communicate with an external antenna but I am not sure where to connect it? On battery connector where there is no "+" and "-"?
另一种解决方案是将尝试与NfcB（ NfcB nfcb = NfcB.get（标签）; ）的卡进行通讯，但我不知道ISO14443- 3B协议（我只知道非常好APDU，T0-TPDU而不是其他TPDU协议）。
Another solution would be to try to communicate with the card with NfcB (NfcB nfcb = NfcB.get(tag);), but I do not know the ISO14443-3B protocol (I only know quite well APDU, T0-TPDU but not other TPDU protocols).
只是可以肯定，我已经更新我的手机到Android 4.1.2（而不是4.1.1），但没有更好的结果。
Just to be sure, I have updated my phone to Android 4.1.2 (instead of 4.1.1) but no better result.
推荐答案
这绝对是一个超时的事，与恩智浦的NFC芯片兼容的东西（如一个在S3）
It is definitely a timeout thing, and a compatibility thing with NXP NFC chips (like the one in the S3)
我与B型标签工作的天线比一个典型的手机天线更高的Q值，和做ISO-DEP，当我需要仍可改变NFC芯片的默认超时，我使用（NXP PN532）。 A型调制由Phillps开发，目前恩智浦。 B型调制由Motorolla开发，并已获得许可，以NXP其读写器芯片，因此，只有基本实现包括相对于A类实现。
I have worked with Type B tags on an antenna with a higher Q factor than that of a typical mobile phone antenna, and when doing ISO-DEP I need to still change the default timeouts of the NFC chip that I'm using (NXP PN532). Type A modulation was developed by Phillps, now NXP. Type B modulation was developed by Motorolla, and is under license to NXP for its reader chips, so only a basic implementation is included relative the the Type A implementation.
我不是在Android这样做，但嵌入式平台，让我有充分的机会来了NFC芯片的功能。因此，只有通过使用需要应用程序处理14443-4协议的更基本transeiving方法和扩大读者的超时宽容是我谈得来使用ISO-DEP B类标签
I am not doing this on an Android, but an embedded platform, so I have full access to the NFC chip's features. Thus, only by using a more basic transeiving method that requires the application to handle the 14443-4 protocol and extending the timeout tolerance of the reader was I able to talk to a Type B tag using ISO-DEP
Android 4.4系统有一种叫做<一个href=\"https://developer.android.com/reference/android/nfc/NfcAdapter.html#enableReaderMode(android.app.Activity,%20android.nfc.NfcAdapter.ReaderCallback,%20int,%20android.os.Bundle)\"相对=nofollow>阅读器模式，可能有一个功能，使您能够延长此超时。
Android 4.4 has something called reader mode, that may have a feature that enables you to extend this timeout.
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