Hi;
As explained in my previous post, ST25DV64KC-DISCO is an NFC Forum Type 5 tag. Mifare classic and Iclass are also tags.
In RFID/NFC, you have basically two types of devices: readers and tags. The reader is an active device that emits an magnetic field at 13.56MHz and that sends commands over this RF field.
The tag is a passive device that does not emit any magnetic field. It receives the magnetic field from the reader, and use this magnetic field to power itself. It also receives the commands from the reader and answer to them by modulating the magnetic field.
The reader is always initiates the dialog, and the tag only answers to a reader's command.
The tag is not emitting any magnetic field, so tow tags cannot communicate with each others.
Therefore, the ST25DV64KC-DISCO cannot communicate with other tags.
If you want to communicate with a tag, you need a reader device such as ST25R3916-DISCO or ST25R3911B-DISCO. Those readers support ISO 14443A, ISO 14443B, ISO15693, NFC Forum T1T, T2T, T3T, T4T and T5T tags. Note that Mifare Classic uses a proprietary authentication, and ciphering known as Crypto-1 which is broken since several years and It is recommended to not use those tags for new application. If your application does not need authentication/ciphering, I would recommend to use ST tags from ST25TN series (T2T tag), ST25TA series (T4AT tag) or from ST25TV series (T5T).
Rgds
BT
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