Hello,

Yes, it was somewhat misunderstandable....

Total time is 5 years, means there may occur no overflow, even if the device
is started (e.g.) 250 times a day every day.

Resolution means, that it is acceptable that no count happens if the device
is only switched on for 10 seconds or so. =

Operation time=3D1'10" results in +1', operation time=3D10'55" results in +=
10'
and operation time=3D0'34" results in +0'.

Will check the thread you spoke of.

Thanks for all help!

Regards

Peter


-----Urspr=FCngliche Nachricht-----
Von: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] Im Auftrag von
Jinx
Gesendet: Mittwoch, 31. Mai 2006 12:34
An: Microcontroller discussion list - Public.
Betreff: Re: [PIC] operation time counter

> > > The total time to be checked is 5 years and the resolution has to =

> > > be 1 minute.
> >
> >You simply won't get that accuracy over 5 years with a PIC's TMR. An =

> >external timing source is needed
> >
> AFAICT the OP only requires a resolution of 1 minute, not an accuracy =

> of 1 minute in 5 years

Hi Mike, if that were the case then the "5 years" is irrelevant. You may as
well take the reading for the day and start afresh

If the OP would care to enlighten us.........

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