单片机数据采集程序

我吧你的问题看了个一知半解，不是很清楚我可以给你一个正弦波产生程序，和你的要求差不多，电路我看了也没什么问题，就是是你那个DA转换输出运放正向输入端应该接地！！你认为呢，下面是程序希望能对你有所帮助
ORG 0000H
LJMP MAIN
ORG 0100H
MAIN: MOV R5,#00H
SIN:MOV A,R5
MOV DPTR,#TAB
MOVC A,@A+DPTR
MOV DPTR,#7FFFH
MOVX @DPTR,A
INC R5
CJNE R5,#240,SIN
AJMP MAIN
TAB:
DB 80H, 83H, 86H, 89H, 8DH,90H,93H,96H
DB 99H, 9CH, 9FH, 0A2H, 0A5H, 0A8H,0ABH,0AEH
DB 0B1H,0B4H,0B7H,0BAH,0BCH,0BFH,0C2H,0C5H
DB 0C7H,0CAH,0CCH,0CFH,0D1H,0D4H,0D6H,0D8H
DB 0DAH,0DDH,0DFH,0E1H,0E3H,0E5H,0E7H,0E9H
DB 0EAH,0ECH,0EEH,0EFH,0F1H,0F2H,0F4H,0F5H
DB 0F6H,0F7H,0F8H,0F9H,0FAH,0FBH,0FCH,0FDH;56

DB 0FDH,0FCH,0FBH,0FAH,0F9H,0F8H,0F7H,0F6H
DB 0F5H,0F4H,0F2H,0F1H,0EFH,0EEH,0ECH,0EAH
DB 0E9H,0E7H,0E5H,0E3H,0E1H,0DEH,0DDH,0DAH
DB 0D8H,0D6H,0D4H,0D1H,0CFH,0CCH,0CAH,0C7H
DB 0C5H,0C2H,0BFH,0BCH,0BAH,0B7H,0B4H,0B1H
DB 0AEH,0ABH,0A8H,0A5H,0A2H,9FH,9CH,99H
DB 96H,93H,90H,8DH,89H,86H,83H,80H ;56

DB 80H,7CH,79H,76H,72H,6FH,6CH,69H
DB 66H,63H,60H,5DH,5AH,57H,55H,51H
DB 4EH,4CH,48H,45H,43H,40H,3DH,3AH
DB 38H,35H,33H,30H,2EH,2BH,29H,27H
DB 25H,22H,20H,1EH,1CH,1AH,18H,16H
DB 15H,13H,11H,10H,0EH,0DH,0BH,0AH
DB 09H,08H,07H,06H,05H,04H,03H,02H
DB 02H,01H,00H,00H,00H,00H,00H,00H;64

DB 00H,00H,00H,00H,00H,00H,01H,02H
DB 02H,03H,04H,05H,06H,07H,08H,09H
DB 0AH,0BH,0DH,0EH,10H,11H,13H,15H
DB 16H,18H,1AH,1CH,1EH,20H,22H,25H
DB 27H,29H,2BH,2EH,30H,33H,35H,38H
DB 3AH,3DH,40H,43H,45H,48H,4CH,4EH
DB 51H,55H,57H,5AH,5DH,60H,63H,66H
DB 69H,6CH,6FH,72H,76H,79H,7CH,80H ;64
END

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