[General] Problem with Ds1307 RTC

[pravin35]

hello everyone,

I bought a new DS1307 from the market including Crystal (32.76khz).

i connected ds1307 in bread board and given 5v when i tried to check the crystal frequency (Pin2) in Oscilloscope i couldn able to see 32.76khz i don know what's wrong with the circuit. i don think i made wrong circuit because its simple circuit have less connections:roll:

Anyone have faced this kind of problem with DS1307. need solution for this help me pls.....

 

[th3gr8]

Exactly what value do you read from your oscilloscope?? Its may be the tolerance of the crystal due to which there is a change in value ..

 

[thunderboympm]

is the crystals body is grounded? may be it will help you.
do you checked the values from a microcontroller or any debuggers
if not do it and varify the RTC is working or not

 

[pravin35]

Exactly what value do you read from your oscilloscope?? Its may be the tolerance of the crystal due to which there is a change in value ..

hi ,

i got 50hz sine wave from the crystal 2 pin and know its not expected one... i don think its a because of crystal tolerance..

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is the crystals body is grounded? may be it will help you.
do you checked the values from a microcontroller or any debuggers
if not do it and varify the RTC is working or not

hi,

i dosent try with micro-controller i just connected RTC circuit in bread board and checked for crystal pin 2 it should generate 32.76khz rite?? how can i connect Ground for crystal body in bread board??? need to solder on crystal body???

 

[thunderboympm]

hi ,

hi,

i dosent try with micro-controller i just connected RTC circuit in bread board and checked for crystal pin 2 it should generate 32.76khz rite?? how can i connect Ground for crystal body in bread board??? need to solder on crystal body???

No, take a jumper above the crystal and attach the jumber to the body of cryster firmly

 

[pravin35]

No, take a jumper above the crystal and attach the jumber to the body of cryster firmly

Thanks !! let me try and Get back to you;-)

 

[pravin35]

hi,

It doesn't work out!!!!!!!!! i am frustrated i don know whats the problem i have tried with 5 new crystals,.........

 

[pravin35]

Any software configuration required for starting the clock in RTC..
i don think its a issue of hardware...

 

[pravin35]

Now my rtc is working i didin do any thing just downloaded the sample code fron site and tried and its updating the RTC data and time.. and sending to comport..

but Still value in oscillator 2 is 50hz.... is it rite or wrong??? expected is 32.76khz