How to handle external interrupts and TIMER0 in PIC

[slaamdunk@gmail.com]

Hi,

I am working on 16F1526 microcontroller and I want to know how to handle external interrupts. I have a push button scheme connected to my PORT B.
Can I define a button push as an external interrupt to the PIC

2) Is there any way to stop TIMER0 from running continuously ?

Thanks for the help

 

[thunderboympm]

you may use the external INT pin. In pic you cannot stop timer zero. But you may enable or disable the interrupt of timer0

 

[mithun mohan]

To use an external interrupt you should enable GIE and INTE bits.Inside the ISR you must clear the INTF.
Timer zero enabling and disabling is done through the TMR0IE bit as thunderboympm said.

 

[Mithun_K_Das]

use like this:


enable hardware interrupt and then each time you press any of the button, it will create an interrupt signal. So you don't need to use TMR0.

Hope this helps.