實現(xiàn)DAC0832的防焦波，方波，鋸齒波等波形輸出

ID:127206 · 發(fā)表于 2016-6-18 21:04

實現(xiàn)波形輸出，帶仿真文件

org 0000h
ajmp main
org 0030h
main:mov a,#00h
clr p1.0
clr p1.1
jnb p3.0, zhengxuan
jnb p3.1,juchi
jnb p3.2,sanjiao
sjmp MAIN
sanjiao:
mov a,#00h
clr p1.0
clr p1.1
loop:
mov p0,a
inc a
mov r0,#10h
djnz r0,$
jnb p3.0 , zhengxuan
jnb p3.1,juchi
sjmp loop
ret
juchi:mov a,#00h
clr p1.0
clr p1.1
up : mov p0,a
inc a
jnb p3.0, zhengxuan
jnb p3.2, sanjiao
jnz up
down: dec a
mov p0,a
jnb p3.0 , zhengxuan
jnb p3.2,sanjiao
jnz down
sjmp up
ret
zhengxuan:mov R5,#00h
sin:mov a,r5
clr p1.0
clr p1.1
mov DPTR,#TAB
MOVC A,@A+DPTR
MOV P0,A
INC R5
jnb p3.1,juchi
jnb p3.2,sanjiao
AJMP SIN
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
DB 0FDH,0FEH,0FFH,0FFH,0FFH, 0FFH,0FFH,0FFH
DB 0FFH,0FFH,0FFH,0FFH,0FFH, 0FFH,0FEH,0FDH
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
DB 80H, 7CH, 79H, 78H, 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
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
ret
end

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實現(xiàn)DAC0832的防焦波，方波，鋸齒波等波形輸出