Check the pull up resistors | Microcontroller › 8051 › DS1307 RTC with 8051 ? comes while printing › Check the pull up resistors November 11, 2012 at 6:07 am #8736 AJISH ALFREDParticipant Check the pull up resistors on the I2C lines are soldered properly. Also try changing the RTC chip. Check for the ‘I2C receive data buffer full’ flag, and try to display only after all the bits are received in the receive buffer. I hope you got the idea. Any doubts, kindly update.
