i2c problem

[Aggers]

I have built a minimilust circuit using an 18x and a DS1307 RTC but no matter how hard I try, I cannot communicate with the RTC. I (and others) have VERY carefully checked out the circuit and it's the same as the one in the datalogger - pin for pin. Is there something that is not documented?

 

[hippy]

From discussions in the main forum, it appears that the circuit may not be entirely correct - have a check there, or use Forum Search.

 

[cylau]

Try to use 28X, to see what happen.