2025-12-18 9:04 PM
Hello everyone,
I am using the X-NUCLEO-NFC10A1 NFC reader with an NXP MCU.
I am able to successfully detect a MIFARE Classic 4K card using this reader.
However, when I try to authenticate a sector for read/write access, I encounter an issue.
I am sending the authentication command using the sequence:
[ AUTH_CMD + BLOCK_ADDRESS ]
After sending this command, I get a timeout error.
I tried increasing the timeout value, but the issue still persists.
When I manually append the CRC to the authentication command and transmit it, the reader returns a framing error.
Could someone please confirm:
Is this the correct way to perform MIFARE Classic 4K authentication using the ST25R200?
If yes, what could be the reason for the timeout or framing error?
If anyone has reference code, application notes, or examples related to MIFARE Classic authentication with ST25R200, please share.
Thank you in advance for your help.