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NTAG I2C 2K doesn't set I2C_READY after writing 64 bytes in SRAM from RF side

Question asked by Naresh Sisodiya on Mar 13, 2017

I am trying to write 64 bytes to SRAM of NTAG I2C 2K from RF side. I am following the sequence : Turning on Pass Through mode, Selecting Sector 1, Writing to SRAM from RF at page address 0xF0 to 0xFF.

Now to send 16 bytes data I write from 0xF0 to 0xF3 and then I do dummy write to 0xFF to turn on I2C_READY and I2C_LOCKED. This works fine until I send more than 56 bytes like if i write from 0xF0 to 0xFE and dummy write to 0xFF or I write 0xF0 to 0xFF continuously. At this point Memory access is also locked to RF interface instead of switching to I2C_LOCKED.

As of now I am using 5ms delay between two write operations and I also tried varying delay but it didn't help.