Reading Mifare DESfire using PN7120

[silvianmandi]

Hello,

I am using NXP NFC reader Library - export controlled on PN7120.

All is ok reading UID of 14443,15693 and DESFire.

I try to read files in Mifare DESfire (files are free, without read key) : no success

Below NDEF exchanges between uC and PN7120:

Sending app select V1 {0x00,0xA4,0x04,0x00,0x07,0xD2,0x76,0x00,0x00,0x85,0x01,0x00},  returns OK  {0x90, 0x00}

As proposed in library, CC select {0x00,0xA4,0x00,0x0C,0x02,0xE1,0x03} does not work: returns {0x6a, 0x82} which is file not found

I tried by program all combinations from 0x0000 to 0xFFFF for file number: it succeds only for 0x0002, 0x3F00, 0x3F02 (I have read that 0x3F00 is master file)

I selected 0x3F00 (which works) and then a read command , reply is {0x6a, 0x82} which is file not found....

Anyone a tip ?

Silvian

[Jorge_Gonzalez]

Hello silvian,

I am very sorry that your question was unattended for a long time.

Generally as the MIFARE DESFire product information is under NDA then the support is not provided in a public space. You need to contact your NXP Sales Representative or Authorized Distributor.

My apologies again for the inconvenience.

/Jorge Gonzalez