1.sdi

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00000A51,,,                                                              04/01/2007 17:57:03 PAGE     1
,,,
,,, ADC             EQU     35H
,,, CLOCK   BIT             P2.3            ;定义ADC0808时钟位
,,, ST              BIT     P2.0
,,, EOC     BIT     P2.1
,,, OE              BIT     P2.2
,,,
00000000,,,                 ORG     00H
00000000,0C,,                 SJMP    START
0000000B,,,                 ORG     0BH
0000000B,0031,,                 LJMP    INT_T0
,,,
0000000E,8902,, START:          MOV     TMOD,#02H
00000011,8CF5,,                 MOV     TH0,#245
00000014,8A00,,                 MOV     TL0,#00H
00000017,A882,,                 MOV     IE,#82H
0000001A,8C,,                 SETB    TR0
,,,
0000001C,A0,, WAIT:           CLR     ST
0000001E,A0,,                 SETB    ST
00000020,A0,,                 CLR     ST              ;启动AD转换
00000022,A1FD,,                 JNB     EOC,$           ;等醋