I'd like to communicate very fast from a PN532 (PICC) device with a PN512 (PCD) Initiator using the ISO14443-4. I have a lot of data to transfer from PICC to PCD. Since the PN512 has only 64 bytes in the FIFO, the PN532 uses the chaining mode to transfer 256 bytes. I use the command 0x8E in PN532 to send 256 bytes and I can see that there're 4 x 64-bytes transmitted from PN532 to PN512.
I attached an image to show the first 64 bytes transmission.
I'd like to understand why it takes several ms for the PN532 to transmit the first 64 bytes. Is there a way to improve that? To reduce the process time to send the first packet?
Please, refer to the image to understand my issue. I took several days before posting this message.
Thank you very much!