Hello.
Currently, when proceeding as follows, there is no change in the interrupt state, so I am asking a question.
1. Connected the PN5190 chip to a custom-built Linux device.
2. Successfully opened the SPI driver (/dev/spidev0.0) and interrupt pin (/dev/interrupt_pin) using the open() function.
3. Attempted to transmit 3 bytes of TX data using the ioctl() function (get version / 0x27, 0x00, 0x00, 3 bytes) -> Confirmed chip select change and clock generation.
-> Tested other tx data in step 3 above. (switch mode normal / 0x20, 0x00, 0x00)
*Verifying board communication functionality before using the NXP library (NxpNfcRdLib).
** Before using the NXP library source, I thought I could verify SPI communication using the procedure described above. If I have misunderstood the half-duplex communication process for this chip, please point it out to me.
