>
> Hello!
>
> >>                 - The 36 * 8 General Purpose RAM (GPR)
> >>                 - And the 64 * 8 EEPROM DATA memory, what is it used for?
>
> About the GPR... I think we use it for our vairables right? If so, how do I
> define, lets say a variable named COUNT at the beginning of the mem? Do we
> have to define the lenght of the variable or is it fixed?

If you're in pic assembly, the only type of container you have is 8 bits
wide.

>
> >So the overflow is connected to an TMR0 overflow bit that gets set to a 1
> >each time the timer overflows. And like all other interrupt driven bits in
> >the PIC, it has a TMR0 interrupt enable, and the Global Interrupt Enable. So
> >if both the TMR0 interrupt enable and the GIE are on, and an overflow occurs,
> >then the PIC is interrupted.
>
> Anhh... this explains it all! At last I understand the timer! Thank you
> very much for the explanations and exemples...

You're welcome.

>
> >Be sure after detecting an overflow that you set the TMR0 overflow bit back
> >to zero so you can detect the next overflow and get out of the interrupt (
> >if you decided to use it) cleanly.
>
> Oh ok... but when a timer overflow occurs, the TMR0 overflow bit gets set and
> the GIE bit cleared right? And in order to get things back I have to clear
> TMR0 overflow bit and set GIE?

If you have an interrupt that's the way it works I believe. But I think that
the RETFIE turns GIE back on automagically. Can anyone confirm/deny that?

BAJ