NT3H2111

[teinsu]

Hi: 

We mistakenly wrote Configuration register NC_REG as 0xFD during development

At present, I put NT3H2111 on the NFC card reader, and the card reader cannot connect the NFC Tag. At this time, the NC_REG value of the Configuration registers read from the i2c is 0xFD, and its content cannot be cleared

Excuse me, how to change the value of NC_REG to 0x01 from i2c?

Tein

[kitconan]

Dear,

We wrote session register value 0x41 by i2c write format( s+mema+mask+regdat+stop ), then read it, return value is 0x1...

Has access session register any limited? has nxp sample code for nt3h2111? 

thanks your help

[Xiang_Li]

You probably enabled the NFC silent mode in NC_REG, so the NFC reader cannot "see" the NTAG.

But this should be able to change back from I2C interface. Did you use the correct I2C command? There are different commands for I2C register read/write and I2C data read/write.