Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

[RFID RC522] Authentication failed

Status
Not open for further replies.

ThiVu

Junior Member level 2
Joined
Aug 1, 2011
Messages
21
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,283
Activity points
1,427
Hello everyone.

I have a problem with the RC522 tag authentication need your help.

At first, i read its id successfully. Then Authenticating to write 10bytes "1010101012" to block 10 OK also.
But after that, I can not read / write from/to this block and all the others also (but always got the id).
It says the authentication is failed, even i use the:
default key (0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF),
madKey ( 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5 )
and NDEFKey ( 0xD3, 0xF7, 0xD3, 0xF7, 0xD3, 0xF7).

Plus, I used authentication key A.

Please help me to solve this, thank you very much.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top