ds 1307

[mister_e]

Any Back-Up battery attached to this DS1307?

Backup Supply Input for Any Standard 3V Lithium Cell or Other Energy Source. Battery
voltage must be held between the minimum and maximum limits for proper operation.
Diodes in series between the battery and the VBAT pin may prevent proper operation. If a
backup supply is not required, VBAT must be grounded.

Any Pull-Up on SDA and SCL pins?

[BobK]

Hi jcleaver,

Do you have your RTC variables declared in your program? Look on page 2 or the Project MN1307 program about 1/2 way down.

Also do you have a statement "RTCSec.7 = 0". You need this to start the clock running. The clock chip powers up with RTCSec.7 = 1 which turns the osc off.

Your program could be returning the errors if you don't have the clock variables declared. Guessing at this point.

I see you have several segments to your program. You should take each one step by step. First get your LCD working. Something like a "Hello World". Then get the A/D portion working. Then add the clock program.

HTH,

BobK

[jcleaver]

was the bat conn not grounded appreicate all your help getting this going
thanks again

[jcleaver]

that solved the problem of everything going to 02 but the clock is still not running i am sending $00 to secs on inital start up do have pullup on scl and sda so i guess im not as far along as i thought

[jcleaver]

think i got it circuit board problem i hope
again thanks now i just have to add temp and i got this one done
let you know