ad.asm

基于51单片机的AD转换实验,汇编代码.

        A_DPORT EQU   0BF00H
        ORG     0000H
        LJMP    START
        ORG     0100H
START:  MOV     DPTR,#A_DPORT;----------A/D-------------
        MOVX   @DPTR,A;启动a/d
        JB     P3.2,$
        MOVX   A,@DPTR;
        MOV    P1,A;读AD------------A/D-------------
        END