start.a

一个在89c52单片机上实现的多路温度采集通信程序

;#include <REGX52.H>
;$include (REG52.INC)

extrn code (ex0Interrupt,timer0Interrupt,ex1Interrupt,timer1Interrupt,recivedata,senddata,timer2interrupt)



org  0003h
     call ex0Interrupt
     reti
  
org  000bh
     call timer0Interrupt
     reti
org 0013h
     call ex1Interrupt
     reti
org 001bh
    call timer1Interrupt
    reti
org 0023h
     ajmp serial
    reti
org 002bh
    call timer2interrupt
    reti
serial:
       jnb RI, next
       clr RI
       ajmp recivedata 
next:  jnb TI, next1
       clr TI
       ajmp senddata
next1: reti
end