;;;ADC0809八路巡回檢測系統(tǒng)
；；； 將讀數(shù)依次存放在片外數(shù)據(jù)存儲器A0-A7H單元



    MAIN:MOV R0,#0A0H   ；數(shù)據(jù)存儲器首址
         MOV R2,#08H
         SETB IT1
         SETB EA
         SETB EX1
         MOV DPTR,#7FF8H     ；DAC0809首址
         MOVX @DPTR,A        ；啟動AD轉(zhuǎn)換
    HERE:SJMP HERE
    INT1:MOVX A,@DPTR
         MOVX @R0,A
         INC DPTR
         INC R0
         DJNZ R2,DONE
         RETI
   DONE:MOVX @DPTR,A
        RETI