Hi I'm here again !
I have finish my F84 based daily timer.
But there is another problem .
I use a 4MHz xtal (wrong choice),prescaler=64,TMR0=131 (256-125)
and I get an interrupt every 8msec. Then I count 125 int. and I have 1sec.
Unfortunately I haven't considered the necessary time to serve int. and
reload TMR0 . So I lose 10usec. every 8msec. = 4.5sec/h (a poor clock!!)
I could reload the time counters from the R.T.C every min. and get the
righ time .I prefer don't use this way .
I think to add every minute a constant value to the int. counter.
But I can't get integer number to get correct result.
(10usec*125int*60sec)/8msec = 9.375
Someone knows a more accurate solution for this problem.

        Thanks
        Gianni