NikosT
Newbie level 3
Hi everybody
I am using Dallas DS1307 Real time clock and I have a problem with the oscillator.
There are about 2000 devices with DS1307 that are working for about 5 years.
Some of them have a problem with the oscillator of DS1307; the oscillator suddenly stops.
I have read the configuration byte and I have seen that the oscillator is disabled.
This is not happen in regular times. Some devices have this problem after months while
others after years and most of them never.
The devices are taximeters which means that are permanently powered by car's battery so
DS1307 rarely switches to backup battery.
Also there is software trap on DS1307 writing; the routine which writes in DS1307 does not allow
the firmware to disable the oscillator, so this problem cannot be a software bug.
Had anyone experienced the same problem?
Thanks
Nikos
I am using Dallas DS1307 Real time clock and I have a problem with the oscillator.
There are about 2000 devices with DS1307 that are working for about 5 years.
Some of them have a problem with the oscillator of DS1307; the oscillator suddenly stops.
I have read the configuration byte and I have seen that the oscillator is disabled.
This is not happen in regular times. Some devices have this problem after months while
others after years and most of them never.
The devices are taximeters which means that are permanently powered by car's battery so
DS1307 rarely switches to backup battery.
Also there is software trap on DS1307 writing; the routine which writes in DS1307 does not allow
the firmware to disable the oscillator, so this problem cannot be a software bug.
Had anyone experienced the same problem?
Thanks
Nikos