DS1307 RTC Problem
Does the DS1307 keep time ?
That is, if you set it to 12.00 and wait 10 minutes does it report 12.10 ?
If so, the problem must be with how you are using the oscilloscope.
Do you have a good earth connection ?
Do you get the right signals on other pins ?ExperimenterUK
ya its updating the time....
But the frequency of crystal is 50hz
[ Edited Mon Jul 21 2014, 10:29 am ]
Did you check attenuation level of your probe? Make sure its same as you've selected in oscilloscope.ajay_bhargav
good point .... probe is 10X but in scope i am not sure!!! ok but Autoscale Should solve this issue rite???
Autoscale does not know what settings you keep on your probe. So you need to go into channel setting and configure right value for probe attenuation.ajay_bhargav
ok ajay let me check and get back to you...
Does the DS1307 keep time ?
That is, if you set it to 12.00 and wait 10 minutes does it report 12.10 ?
If so, the problem must be with how you are using the oscilloscope.
Do you have a good earth connection ?
Do you get the right signals on other pins ?ExperimenterUK
ya its updating the time....
But the frequency of crystal is 50hzpravin_35
If the crystal frequency was 50Hz the clock would be way off,
so you must be reading it incorrectly.
Have you checked that the probe is working and properly connected ?
Attenuation of the probe will not affect frequency readings.
Does the DS1307 keep time ?
That is, if you set it to 12.00 and wait 10 minutes does it report 12.10 ?
If so, the problem must be with how you are using the oscilloscope.
Do you have a good earth connection ?
Do you get the right signals on other pins ?ExperimenterUK
if set the time its is updating time 10min less than actual time .. but updating same continuously
[ Edited Thu Jul 24 2014, 04:05 pm ]
Try to change the DS1307 chip. It might have gone faulty.ajay_bhargav
ok sure
