positive edge triggered interrupt on 8051

Discussion in 'General Electronics Chat' started by electron_prince, May 10, 2014.

  1. electron_prince

    Thread Starter Active Member

    Sep 19, 2012
    Does anybody of you know how to implement a positive edge trigger interrupt on 8051 microcontroller? I already had my PCB built so I can't use any inverter, mosfet, bjt, pull-up or pull down resistor. I need a software way to do the same thing. I don't know much about 8051 Interrupt architecture but I am looking for some way to use any of those pins (INT0, INT1, T0 or T1) to generate a positive edge triggered interrupt. It's very urgent.
    A little about circuit: I want to interrupt my microcontroller on "valid transmision" of HT12D IC.
    Any/all sorts of help are appreciated. Thanks in advance.