Is the NFC Reader Library compatible with the MFRC523 and MFRC522?

[user_leo]

While looking through the NFC Reader Library (NRL), I saw that the files labeled for rc523, for example phhalHw_Rc523.c, are in fact for the PN512.

Does that mean the NRL can be used with the MFRC523, and in turn the MFRC522 since the two devices have the same register and bit map, without making any changes to the NRL? 

[user_leo]

Had to make some modifications to the original "NXP Reader Library" but was able to get the Example 1 working and am able to read TAG UIDs for IS014443A type tags. Biggest change was turning the waitirq function into a delay due to getting a hard fault from xEventGroupWaitBits when it was called.

[KellyLi]

Hello @user_leo ,

MFRC522/3 is a highly integrated reader/writer IC for contactless communication at 13.56 MHz. The MFRC522 reader supports ISO/IEC 14443 A/MIFARE and NTAG. However, in addition MFRC523 reader also supports ISO/IEC 14443B mode. The registers and addresses of these two chips are almost the same, but the test registers are a little different, MFR523 has a few more of test register, you should pay attention to here, if need. But my suggest is when porting, it should be slightly modified for two different points. For more design details read the corresponding data sheet.

But not recommended for new designs. For new designs, please use recommended product CLRC663 plus. The replacement for these products is the CLRC663.

Best Regards,

Thanks,

kelly

[user_leo]

For now, I'm just testing.

You said "when porting, it should be slightly modified for two different points". What are these two points and how should they be modified to enable me to use the NFC Reader Library for the MFRC522. 

Also, would the NFC Reader Library write to any Reserved Bits on the MFRC522 if I were to use it only for ISO/IEC 14443 A/MIFARE and NTAG?

[KellyLi]

Hello @user_leo 

so for new designs, please use recommended product CLRC663 plus, there will be more design resources. 

Best Regards,

Thanks,

kelly

[KellyLi · Accepted solution]

Hello @user_leo 

I mean the different points is for MFRC523 and MFRC522,  some of them have different register address(test register), when you test MFRC522 by MFRC523 library,  may be some register of MFRC522 not be configurated in the library of MFRC523,  so you should pay a little attention, for the details please read the data sheet carefully.

About your the last point, I think the NFC Reader Library don't write to any Reserved Bits on the MFRC522 when using for ISO/IEC 14443 A/MIFARE and NTAG.

But suggest you making test on NXP's development kit. The MFEV710 design in kit includes the MFRD710 contactless smartcard reader, a design based on the MFRC523 contactless reader IC.

Best Regards,

Thanks,

kelly

[user_leo]

This link for a previous community post, related to this topic, mentions example code for the mfrc522 that allows it to read mifare classic, I was wondering if I could also get this example code.

Thank you