Question about Timer0

[hukiju]

Hi,

I would like to understand more about timer0 in PIC (p18f4550). If I have a long program to be executed, will it affect the timer0 operation? Like if the program is too long to be executed, will it slow down the timer0 timing?

Appreciate for any teacher who willing to teach a newb like me.

Thanks!

Lee

 

[betwixt]

Timer 0, and all the other timers are built into the hardware of the silicon, they run all the time and unless their values are changed by your program writing new data to them they will always keep counting at the same speed. They are driven directly from the system clock so your program will not slow them down. This is one of the reasons they are added to all the PIC range, and most other processors, they provide a reliable timing source no matter what the program itself is doing.

Brian.

 

[hukiju]

Hi Brian,

Thanks for the explanation. That's what I'm looking for. Appreciated! :smile:

Lee