Hello everyone,

Did any try using lpcd property, when detect card wake up ardunio ?

I found a collision bug.

      // set it to insert zeros in case of a collision, (1<<7)
      // We want to shift the bits with RxAlign
      uint8_t rxalign = known_bits % 8;
      MFRC630_PRINTF("Setting rx align to: %hhd\n", rxalign);
      mfrc630_write_reg(MFRC630_REG_RXBITCTRL, (1<<7) | (rxalign<<4));

should be

      // set it to insert zeros in case of a collision, (0<<7)
      // We want to shift the bits with RxAlign
      uint8_t rxalign = known_bits % 8;
      MFRC630_PRINTF("Setting rx align to: %hhd\n", rxalign);
      mfrc630_write_reg(MFRC630_REG_RXBITCTRL, (0<<7) | (rxalign<<4));

Hello,
when some conditions are met (tag is on the limit of the reader range), then it is possible, that reader return rx_len as 0 in mfrc630_iso14443a_select():

Then rx_len is used by

But mfrc630_read_fifo() can't handle zero len (underflow in for's condition)

I fixed it by checking for zero len in mfrc630_read_fifo(),

void mfrc630_read_fifo(uint8_t* rx, const uint16_t len)
{
    if (len == 0) return;

It's working, but I'm not sure, that this is the best solution.

Hello,

Do you have any info on how to advance this library to read ISO/IEC 18092 tags (with CLRC663) ?

If it were to just try and detect the presence of a card for which just need to run the loop code at 5ms delay and just check if (atqa != 0), but with this the arduino is giving output even without the presence of any card.
Is there something we can do?

How should I implement this part of the logic?

Thanks for sharing this project.
I noticed that in the Arduino example code, there're references to function calls such as mfrc630_iso14443a_REQA that is not defined anywhere in the project. Could you please help me understand where those are defined?
I'm surprised that people can compile the example code... Am I missing something?

Hi,

I'm using your libray for my reader, but now i'm stuck with extending the functions. I want to support UID-Change on mifare cards. A library for the RC522 can do this by sending commands to the mifare card directly

If you check https://www.nxp.com/docs/en/data-sheet/MF1S50YYX_V1.pdf on Page 13 you can see the commands "Halt" and "Personalize UID". I need to send this commands,

I guess they are similar to the REQUA that already in your code. Any help on how to make a function that can send this commands?

Hi @iwanders could you provide the sample code for ISO15693 tags detection with anticollision

How to know if card is in or out ?

atqa = mfrc630_iso14443a_REQA()

returns alternating 4 and 0 , but it is not reliable.

Sometimes it is 0x2A, and sometimes it is 0x2B, which will cause me to fail when initializing the card reader. How can I keep it unchanged?

// Use the manufacturer default key...
uint8_t FFkey[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};

  mfrc630_cmd_load_key(FFkey);  // load into the key buffer

FFkey I need to validate the first key before I update it, but I keep calling mfrc630_cmd_load_key(FFkey); This function will fail to verify success, please tell me how to correctly repeat call it

Hello! Can you help me? I have board with MFRC630 and custom antenna. And I don`t understand where is problem antenna? MFRC630 setup? or may be smth else? It will be realy awesome if you can explain me how did you chose values for this registers, by what reasons I mean.

Could someone share an example of LPCD ?

We are using the custom board with the Reader ic is CLRC663 and SPI is used for the interfacing with microcontroller. SPI is configured as mentioned in the Datasheet of the clrc663 reader.The issue is there is no response from the reader.SiPI is working FIne.

**need help for the communication

Hello,

Do you have any info on how to advance this library to read ISO15693 tags (with CLRC663) ?

I want to Read Version of my MFRC63002 Card Reader using Serial utility like Docklite. please can someone help me out with the commands?Just to understand if my reader is Communicating, Also how do i read UID of My MiFare Classic Card.

Hi all,

My RFID project is with CLRC663 using stm32l0. So far with the help of the code here I managed to get ATQA, UID, SAK, ATS and also read and write to Mifare classic card, work. However I can not get it work with desfire commands! I need to create application, select it, create file and so on but I could not get the native commands work, I even tried to wrap it with ISO 7816 but still no gain. Is their any library that i can download? Nxp's library is so complicated .
Many thanks in advance.

How to receive information from Android NFC enabled device using MFRC630?