Forum › MIFARE and NFC Reader IC`s › NFC Mifare Ultralight – reading succeeds, writing gives an error "6300" › Reply To: NFC Mifare Ultralight – reading succeeds, writing gives an error "6300"
Hi Evgen,
Allowing a write after a read command is not a known feature of the MIFARE Ultralight C. You know, the Ultralight C allows it to lock a range of pages (refer section 7.5.2 Lock byte 0 and 1). The other memory protection mechanism is to use an authentication (refer section 7.5.8 Configuration for memory access via 3DES Authentication).
I assume the error occurs in your read and write implementations. Please take in mind: the READ command send 16 bytes (4 pages) back to the reader and the WRITE command expect to take 4 bytes (one page).
The TapLinx team
Allowing a write after a read command is not a known feature of the MIFARE Ultralight C. You know, the Ultralight C allows it to lock a range of pages (refer section 7.5.2 Lock byte 0 and 1). The other memory protection mechanism is to use an authentication (refer section 7.5.8 Configuration for memory access via 3DES Authentication).
I assume the error occurs in your read and write implementations. Please take in mind: the READ command send 16 bytes (4 pages) back to the reader and the WRITE command expect to take 4 bytes (one page).
The TapLinx team
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