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SDA is pulled low on 9th clock pulse!(NTAG Tag NT3H1101 )

Question asked by tarik ah on Oct 5, 2017
Latest reply on Oct 30, 2017 by tarik ah

Hello Dears,

I am working on interfacing MSP430 with NT3H1101 with I2C. I could not read from the NTAG as the SDA is pulled low on 9th clock pulse. I found that it is related to clock stretching bit on register I2C_CLOCK_STR. as Kan_Li i may access the E9h via RF interface, i could access to configuratio register throught the NFC I2C demo, I still receive a Nack from the chip?

what shpuld i do that i can communicate with the NTAG?

best regards,