how to handle external interrupt - Electronic Circuits Projects Diagrams Free

anch · 2nd June 2006, 09:07 AM

I am using atmel 89c51 micro controller and i am handling external interrupts
in Keil but it doesn't getting well. some one please provide me the Keil code for handling external interrupts. the code i am trying is:

void isr0 () interrupt 0
{
// some code here

}

void main()
{
EA = 1;
EX0 =1;

while(1)
{

}

}

Papabravo · 3rd June 2006, 03:21 AM

Is your problem in the compilation or the execution? The listing you gave us doesn't do anything. You also did not select edge or level and there is no obvious interrupt condition so how can we tell if anything is happening or not. If you have a correct compilation then could you post the assembly listing?

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

2nd June 2006, 09:07 AM	#1
anch	how to handle external interrupt I am using atmel 89c51 micro controller and i am handling external interrupts in Keil but it doesn't getting well. some one please provide me the Keil code for handling external interrupts. the code i am trying is: void isr0 () interrupt 0 { // some code here } void main() { EA = 1; EX0 =1; while(1) { } }

3rd June 2006, 03:21 AM	#2
Papabravo	Is your problem in the compilation or the execution? The listing you gave us doesn't do anything. You also did not select edge or level and there is no obvious interrupt condition so how can we tell if anything is happening or not. If you have a correct compilation then could you post the assembly listing?