Error PH_ERR_INTEGRITY_ERROR when communicating with card 14443-4A at 424Kbps

[thanh311078]

I designed a circuit using PN5180 to read 14443-4A card (ISO-Dep)

At the default speed of 106Kpbs, reading card data is always successful.

However, when set Baud rate to 424Kbps, reading the card sometimes has an error Status = 2 (PH_ERR_INTEGRITY_ERROR). 

Set baudrate using PPS command: wStatus = phpalI14443p4a_Pps(pspalI14443p4a, PHPAL_I14443P4A_DATARATE_424, PHPAL_I14443P4A_DATARATE_424);

I'm not sure what the cause is, whether it's the antenna quality or the circuit design.

[danielchen]

Hi Thanh:

PH_ERR_INTEGRITY_ERROR maybe occur due to several reasons:

1 Reader didn't get the complete packet/byte

2 CRC/Parity received by reader is wrong.

Please check it on your side

Regards

Daniel