sin51.txt

51单片机产生正弦波 下列数据是我计算出来的正弦函数在0~90度区间的数值（0~128）

0-90 的正弦波表

下列数据是我计算出来的正弦函数在0~90度区间的数值（0~128），可以用于8位DA输出，把这个数据表存进去查表就行了，其他角度做点儿简单的计算就行了。




1 2
2 4
3 7
4 9
5 11
6 13
7 16
8 18
9 20
10 22
11 24
12 27
13 29
14 31
15 33
16 35
17 37
18 40
19 42
20 44
21 46
22 48
23 50
24 52
25 54
26 56
27 58
28 60
29 62
30 64
31 66
32 68
33 70
34 72
35 73
36 75
37 77
38 79
39 81
40 82
41 84
42 86
43 87
44 89
45 91
46 92
47 94
48 95
49 97
50 98
51 99
52 101
53 102
54 104
55 105
56 106
57 107
58 109
59 110
60 111
61 112
62 113
63 114
64 115
65 116
66 117
67 118
68 119
69 119
70 120
71 121
72 122
73 122
74 123
75 124
76 124
77 125
78 125
79 126
80 126
81 126
82 127
83 127
84 127
85 128
86 128
87 128
88 128
89 128
90 128









51单片机产生正弦波


ORG  00H
LJMP MAIN
ORG 0100H
MAIN:
    MOV DPTR,#sinTab
LOOP:
    CLR  A
    MOVC  A,@A+DPTR
    CJNE  A,#129,LOOP1
    AJMP   MAIN
LOOP1:
    MOV P3,A
    INC DPTR
    AJMP LOOP



sinTab:DB 128,132,137,141,146,150,154,159,163,167
       DB 171,176,180,184,188,191,195,199,203,206
       DB 210,213,216,219,222,225,228,231,233,236
       DB 238,240,242,244,246,247,249,250,251,252
       DB 253,254,254,255,255,255,255,255,254,254
       DB 253,252,251,250,249,247,246,244,242,240
       DB 238,236,233,231,228,225,222,219,216,213
       DB 210,206,203,198,195,192,188,184,180,176
       DB 172,167,163,159,155,150,146,141,137,133
       DB 128,124,119,115,111,106,102,97,93,89,85
       DB 81,77,73,69,65,61,57,54,50,47,43,40,37
       DB 34,31,28,25,23,20,18,16,14,12,10,9,7
       DB 6,5,4,3,2,2,1,1,1,1,1,2,2,3,4,5,6
       DB 7,9,10,12,14,16,18,20,23,25,28,30,33,36
       DB 40,43,46,50,53,57,60,64,68,72,76,80,84
       DB 88,93,97,101,106,110,114,119,123,128,129