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LPC1768 interfacing with DS3231 problem

Question asked by Mosi Yaghi on Aug 11, 2016
Latest reply on Aug 12, 2016 by Mosi Yaghi

I'm using the I2C driver from this link  to get the time data from a RTC chip (DS3231). But I keep getting I2C_NACK_ON_ADDRESS after sending the first byte which is the slave address (0x68) and I can't go forward after this.

All things seems to be ok. I used I2C0 and configured it correctly and using a famous DS3231 module with battery and everything and with 4.7K pull-up resistors.

What could be the problem?