Ram Prasadh

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11 years, 2 months ago.

External Interrupt Generation on a LPC1768

Hi,

I am just trying an external interrupt in LPC1768. I have a problem here. To my knowledge , the code attached below will toggle the led for every 5 seconds , as I have called both rise and fall parameters. But that does not happen on LED1. Is my program right for togglinh the led1 every 5 sec?? I just want to know where I go wrong...

#include "mbed.h"

InterruptIn button(p18); // Interrupt on digital pushbutton input p18
DigitalOut led1(LED1); // digital out to p5
DigitalOut Input_Signal(p5);
void toggle(void); // function prototype

int main() {
button.rise(&toggle); // attach the address of the toggle ---> InterruptIn button(p18); 
button.fall(&toggle);
while(1)
    {
        Input_Signal = 0;  // Given in P5 ---> DigitalOut Input_Signal(p5);
        wait_ms(5000);
        Input_Signal = 1;
        wait_ms(5000);
    }
} 


void toggle() {
led1=!led1;
}

Regards, RamPrasadh N

1 Answer

Ram Prasadh
poster
11 years, 2 months ago.

Its working.. Its a problem with one of my boards.

Accepted Answer