D/A 0832 输出正弦波、三角波、锯齿波(查询方式),单片机与0832输出不同波形
关键字:DAC0832,正弦波,三角波
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,shanjiao sjmp MAIN
shanjiao: 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,shanjiao jnz up down: dec a mov p0,a jnb p3.0 , zhengxuan
jnb p3.2,shanjiao 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,shanjiao 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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