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Rising Edge Interrupt On PIC24FJ64GA004 [Solved]

 
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demedeiros



Joined: 27 Dec 2013
Posts: 71

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Rising Edge Interrupt On PIC24FJ64GA004 [Solved]
PostPosted: Tue Dec 06, 2022 9:38 am     Reply with quote
Hi All,

Trying to setup a rising edge interrupt on a PIC24FJ64GA004. I have the signal connected to B12 (Or B13 if needed...).

Looking at the datasheet (PDF page 5), it looks like pins B12 and B13 are listed as Interrupt-on-Change inputs, so I am assuming I have an issue with my code. Any thoughts?



Code:
#include <main.h>
#include "flex_lcd.c"

#int_EXT1
void EXT1_isr(void)
{
   if(input(ENC_B))
   {
      encoderCount += 1;
   }else
   {
      encoderCount -= 1;
   }

}


void main()
{
   ext_int_edge(14,L_TO_H);   //I assumed the source input was the CN#, but I think I am wrong?
   enable_interrupts(INT_EXT1);
   enable_interrupts(GLOBAL);
   lcd_init();
   // Clear the LCD.
   printf(lcd_putc, "\f");
   delay_ms(500);
   output_high(BACKLIGHT);

   while(TRUE)
   {

      printf(lcd_putc, "\fEnc: %lu", encoderCount);

      delay_ms(250);
   }

}
demedeiros



Joined: 27 Dec 2013
Posts: 71

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PostPosted: Tue Dec 06, 2022 9:48 am     Reply with quote
Doh! Nevermind, I didnt realize that CN was for the change notification interrupt!
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