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Not getting proper response from CR95HF


I am trying to read NFC tags using the NFC03A1 NFC Module and the NUCLEO F439ZI, but I am not able to establish the connection.

After sending the ECHO Command (0x00 0x55) and then sending the POLL control byte (0x03), when I read the response using HAL_SPI_Receive(), I get the same response every time 0xFF.
I even tried the interrupt method where I checked the state of the IRQ_OUT pin, but it is never pulled down to indicate that the chip is ready to send data back.

So my code keeps looping from that point.


Any response will be appreciated, Thanks.