Hi
I am using DS1307 for RTC and i am using p3.0
as SDA and p3.1 as SCL of 89c52. The code i used is downloaded from dallas site.

The code and rtc works fine but there's some problem with crystal. many times data just disappers and when i touch crystal it agains starts showing the correct data and when i remove finger it again start showing junk. i think it must be grounding problem. is it necessary to put 33pf caps across crystal or what can be other solution.

Yash