ADC0809并行AD转换实验设计
ORG 0000H LJMP MAIN ORG 0030H MAIN: CLR A setb p3.3 MOV DPTR,#0FEF3H ;ADC0809及3通道地址 NOP NOP NOP MOVX @DPTR,A WAIT: JNB P3.3,WAIT MOVX A,@DPTR ; 读入结果 NOP NOP NOP MOVX A,@DPTR ; 读入结果 MOV P3,A CALL delay LJMP MAIN DELAY:MOV R5,#4 AA0: MOV R6,#0 AA1: MOV R7,#0 AA2: DJNZ R7,AA2 DJNZ R6,AA1 DJNZ R5,AA0 RET END
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