ST25DV04KC - how to read NDEF Text from I2C?

[dzuy]

We're evaluating the ST25DV04KC for our application. We want to write to the ST25DV04KC from NFC and read the info from I2C from our MCU.

We're able to use NFC app on the smart phone to write an NDEF Text of "12345". We can read it via NFC. But reading from the EEPROM proves to be more difficult that other I2C EEPROM. Reading the data sheet, there seems to be 2 I2C addresses, 0x53 and 0x57. We've to read from both but got 0xff for every byte.

So, our NDEF Text of "12345" is written somewhere in this chip. How do we get it out of this chip from our MCU?

[dzuy · Accepted solution]

Actually, it was my mistake. I was writing int, print char when reading.

It does work correctly. Thanks so much for your help.