Thanks

I resoldered SEL1 to GND to force PN532 into UART mode. Then I connected J8 (POWER) and J4 (PC1) to CP2102-based USB-to-UART converter like this:

GND -> J8-2 (GND)
GND -> J8-3 (GND)
+5V -> J8-4 (+5V)
RXD -> J4-5 (MOSI/SDA_)
TXD -> J4-6 (SCL/RX/SS_)

No luck. That's what nfc-list says in debug mode:

lt-nfc-list: DBG pn532_uart.c:97
lt-nfc-list:     Trying to find PN532 device on serial port: /dev/ttyUSB0 at 115200 bauds.
lt-nfc-list: DBG uart_posix.c:106
lt-nfc-list:     Serial port speed requested to be set to 115200 bauds (86 µs).
TX: 55  55  00  00  00  00  00  00  00  00  00  00  00  00  00  00  ff  03  fd  d4  14  01  17  00  
lt-nfc-list: DBG uart_posix.c:219
lt-nfc-list:     iExpectedByteCount == 6
lt-nfc-list: ERROR: No ACK.
lt-nfc-list: DBG uart_posix.c:219
lt-nfc-list:     iExpectedByteCount == 9
lt-nfc-list: ERROR: Unable to wakeup the PN532.
TX: 00  00  ff  09  f7  d4  00  00  6c  69  62  6e  66  63  be  00  
lt-nfc-list: DBG uart_posix.c:219
lt-nfc-list:     iExpectedByteCount == 22
lt-nfc-list: ERROR: Unable to receive data. (RX)

Tried 1.4.x and 1.5.x. Did I miss something?

The TRF7970A uses either an SPI or parallel interface.

Gus S. Calabrese
99guspuppet

Any pointers on troubleshooting from here?

I received my ACR122u Reader today and wanted to play a litte bit with it.

I've installed libpcsclite, libusb, libfnc and the drivers from the ACS Website.

nfc-list shows me

root@root:~# nfc-list
nfc-list use libnfc 1.4.2 (r891)
No NFC device found.

lsusb shows me

Bus 001 Device 004: ID 072f:2200 Advanced Card Systems, Ltd

and pcscd -f shows me really nothing. I start it, plug in the reader an nothing happens. When I unplug it, I get:

00000000 ccid_usb.c:800:WriteUSB() usb_bulk_write(001/006): No such device
00000038 ifdwrapper.c:469:IFDStatusICC() Card not transacted: 617
01000144 eventhandler.c:333:EHStatusHandlerThread() Error communicating to: ACS ACR122U 00 00
00400452 ccid_usb.c:800:WriteUSB() usb_bulk_write(001/006): No such device

Any ideas?

Sorry for my English btw, I am not an native speaker

I have assembled the hardware and have uploaded the firmware for the arm MCU. Now i am having problems running the program in which i can test it to Mifare cards. Errors results in the make command in the repository.

Any help would be appreciated.

Sorry for bad english.

recently I obtained a "Reiner SCT cyberjack RFID basis" card reader. Actually, a batch of these was given away for free by the German government to increase the acceptance of the new chip-based ID card among the people.

There are more information, some tear down pictures and internals on this wiki page.

The reader is using a PN512 chip, which is currently unsupported by libnfc. But I am able to communicate with the reader and a Mifare DESfire card using PC/SC. I have a proof of concept using SCardConnect, SCardTransmit, etc.

Are there any plans to support more readers like this one in libnfc using the PC/SC interface?

I have read the roadmap and I have seen that some internal changes are already planned. But it doesn't look like this will add support for more readers...

As I understand I can't set the Nexus in tag emulation mode, which would have been very convenient, I need to take a different approach. The alternatives I'm looking at are:

1. Sending a simple NDEF with a key I also know on the receiving side. This I read with the ACR122U
2. Set the currently active ARC122U to emulate a tag with an ID I can push to the Nexus through the back-end, and the the Android app can verify that the ID is correct.

So which approach I am most likely to get working? At the moment I have stability problems as my experiments with the different libnfc example programs leads to one or several of the ACR122U readers being locked (nfc-list works, which is enough for getting the UID's from the passive tags I have for the project).

Thanks in advance,
Per, Sweden

I'm using an ACS ACR122U reader/writer on my MacBook Pro (running OS X 10.6). When I connect the reader to a free USB port the LED on the reader blinks several times in red.

When I try to use nfc-list for example, the tool says it can't find a connected NFC reader (with a tag placed on top of the reader). While executing nfc-list the LED blinks red one time, afterwards it throws the "Error connecting NFC reader" error.

I found a workaround to fix this problem. Using the "pcsctest" (libpcsc) command seems to work. It is able to find my reader and asks me to put a tag on top of it. With the tag on the reader the LED turns green and turns back to red when I remove the tag. After executing this command the reader still recognizes my tags, and the LED goes from green to red etc. When I'm fast I can execute nfc-list once successfully. If it still keeps saying it can't find the reader, I run pcsctest again and nfc-list will work once.

Can someone tell me what I'm doing wrong?

Thanks.

I have obtained one of about 400.000 SCL011 NFC-devices which were given away or free in Germany. These devices are currently not supported by libnfc, but there are linux-drivers and the device works via PC/SC.

Some interesting hardware-details:
*RFID-Chip (transponder) STC3 inside
*Datasheet: http://www.scmmicro.com/pdf/Dat_STC_3_e.pdf

*Description (german): http://www.scmmicro.com/de/products-ser … cl011.html
*Reference Manual: http://www.scmmicro.com/fileadmin/produ … VER2.0.pdf
*Firmware: http://support.scmmicro.com/dfu_fw.php? … eaderno=85

IC's:
*SCM STC3-HF
*NXP PN512HN

My question is: Is it possible to support this hardware (SCL011) in libnfc? And if yes: what can I do to help the libnfc developers community with this device?

Raim has posted a request / idea to support a similar RFID-reader (given away for free in Germany, too) via PC/SC: http://www.libnfc.org/community/topic/2 … over-pcsc/

Links (german):
http://www.mikrocontroller.net/topic/197711
http://www.das-labor.org/wiki/RFID/Scl011

I am thinking of building a prototype of an android tablet(gingerbread) connected to a NFC reader, to read Mifare desfire based cards.
I am new to this world, what would it take to build one?

Also,
What would it take to grab a beagleboard/imX board, port libnfc to android kernel 2.3.x and connect a PN532 chip to it.
Does this chip have secure element in it ?

[294036.567561] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[294036.567574] cp210x 6-1:1.0: device disconnected
[294038.163988] usb 6-1: new full speed USB device number 9 using uhci_hcd
[294038.325680] cp210x 6-1:1.0: cp210x converter detected
[294038.430646] usb 6-1: reset full speed USB device number 9 using uhci_hcd
[294038.570811] usb 6-1: cp210x converter now attached to ttyUSB0

lsusb shows it as

Bus 004 Device 032: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP210x Composite Device

and it is useable through a python script using the serial device.
In this post someone asked for help using this device and it seemed to work for him
http://www.libnfc.org/community/topic/2 … buntu-904/
When I try nfc-list I only get

nfc-list uses libnfc 1.5.1 (r1175)
No NFC device found.

I tried the newest svn release too.
I build the code with
./configure --prefix /usr --enable-serial-autoprobe --with-drivers=acr122,arygon,pn53x_usb,pn532_uart
and strace shows that it probes on some ttys including ttyUSB0.
I don't get why it does not work.Hope somebody here can help.

1.Changeable UID Mifare 1K
Works exactly like the Mifare Classic 1K, with 16 Sectors and 4 Blocks each Sector, but the Sector 0 Block 0 known as
Manufacturers Block where the Chip UID is stored, can be re programmed to any UID you wish.

2.Proxmark3
We supply the Proxmark3 for the development,and the price is:190USD.
If you need please contact with us: security_rfid@hotmail.com

Ringo