ORG0000HAJMPSTARTORG0050HSTART:MOVDPTR,#0FEFFHLP:MOVA,#00HLHYPERLINK"http://zhidao.baidu.com/link?url=uk0_jHzxI2zgPp-6iRPS1dDvQhg2ncOViOiKaWnv14NknMmf1BYAYoar_2V7MWI8cvG6q7mKv4QFYYY3eEaNzK#"P1:MOVX@DPTR,AINCAMOVDPTR,#0FEFFHTRI:MOVA,#00HUP:MOVX@DPTR,AINCACJNEA,#0FFH,UPDOWN:MOVX@DPTR,ADECACJNEA,#00H,DOWNMOVDPTR,#SINTAB;正弦表写入内部RAM6DH-7FHMOVR0,#6DHLOOP:CLRAMOVCA,@A+DPTRMOV@R0,AINCDPTRINCR0CJNER0,#80H,LOOPMOVDPTR,#7FFFH;设置D/A转换器的端口地址MOVR0,#6DH;设置正弦表指针LOOP1:MOVA,@R0;查表MOVX@DPTR,A;D/A转换ACALLDELAY;延时，等待转换结束DECR0;正弦表位移量增量CJNER0,#6DH,LOOP1;第一象限输出完？LOOP2:MOVA,@R0;查表MOVX@DPTR,A;D/A转换acallDELAY;延时，等待转换结束DECR0;正弦表位移量减量CJNER0,#6DH,LOOP2;第二象限输出完？LOOP3:MOVA,@R0;查表CPLA;表值取反MOVX@DPTR,A;D/A转换ACALLDELAY;延时，等待转换结束INCR0;正弦表位移量增量CJNER0,#7FH,LOOP3;第三象限输出完？LOOP4:MOVA,@R0;查表CPLA;表值取反MOVX@DPTR,A;D/A转换ACALLDELAY;延时，等待转换结束DECR0;正弦表位移量减量CJNER0,#6DH,LOOP4;第四象限输出完？SJMPLOOP1DELAY:MOVR7,#200;延时50msDEL1:MOVR6,#123NOPDEL2：JNZR6,DEL2DJNZR7,DEL1LJMPSTARTSINTAB:DB80H,83H,86H,89H,8DH,90H,93H,96HDB99H,9CH,9FH,0A2H,0A5H,0A8H,0ABH,0AEHDB0B1H,0B4H,0B7H,0BAH,0BCH,0BFH,0C2H,0C5HDB0C7H,0CAH,0CCH,0CFH,0D1H,0D4H,0D6H,0D8HDB0DAH,0DDH,0DFH,0E1H,0E3H,0E5H,0E7H,0E9HDB0EAH,0ECH,0EEH,0EFH,0F1H,0F2H,0F4H,0F5HDB0F6H,0F7H,0F8H,0F9H,0FAH,0FBH,0FCH,0FDHDB0FDH,0FEH,0FFH,0FFH,0FFH,0FFH,0FFH,0FFHDB0FFH,0FFH,0FFH,0FFH,0FFH,0FFH,0FEH,0FDHDB0FDH,0FCH,0FBH,0FAH,0F9H,0F8H,0F7H,0F6HDB0F5H,0F4H,0F2H,0F1H,0EFH,0EEH,0ECH,0EAHDB0E9H,0E7H,0E5H,0E3H,0E1H,0DEH,0DDH,0DAHDB0D8H,0D6H,0D4H,0D1H,0CFH,0CCH,0CAH,0C7HDB0C5H,0C2H,0BFH,0BCH,0BAH,0B7H,0B4H,0B1HDB0AEH,0ABH,0A8H,0A5H,0A2H,9FH,9CH,99HDB96H,93H,90H,8DH,89H,86H,83H,80HDB80H,7CH,79H,78H,72H,6FH,6CH,69HDB66H,63H,60H,5DH,5AH,57H,55H,51HDB4EH,4CH,48H,45H,43H,40H,3DH,3AHDB38H,35H,33H,30H,2EH,2BH,29H,27HDB25H,22H,20H,1EH,1CH,1AH,18H,16HDB15H,13H,11H,10H,0EH,0DH,0BH,0AHDB09H,08H,07H,06H,05H,04H,03H,02HDB02H,01H,00H,00H,00H,00H,00H,00HDB00H,00H,00H,00H,00H,00H,01H,02HDB02H,03H,04H,05H,06H,07H,08H,09HDB0AH,0BH,0DH,0EH,10H,11H,13H,15HDB16H,18H,1AH,1CH,1EH,20H,22H,25HDB27H,29H,2BH,2E