1./******************************************************************/
2./*****************************************************************/
3./*
4./* 步进电机加减速运行程
序
5./* 步进电机启动时，转速由慢到快逐步加
速。
6./* 步进电机匀速运
行
7./* 步进电机由快到慢逐步减速到停止
8./*
9./******************************************************************/
10.
11.#include
12.#include
13.
14.#define uchar unsigned char
15.#define uint unsigned int
16.
17.sbit addr0 = P1^4;
18.sbit addr1 = P1^5;
19.sbit addr2 = P1^6;
20.sbit addr3 = P1^7;
21.
22.uchar code FFW[8]={0x0e,0x0c,0x0d,0x09,0x0b,0x03,0x07,0x06};//正转数组
23.uchar code REV[8]={0x06,0x07,0x03,0x0b,0x09,0x0d,0x0c,0x0e};//反转数组
24.uchar rate ;
25./********************************************************/
26./*
27./* 延时
28./* 11.0592MHz时钟，
29./*
30./********************************************************/
31.void delay()
32. {
33. uchar k;
34. uint s;
36.do
37. {
38.for(s = 0 ; s <100 ; s++) ;
39. }while(--k);
40. }
41.
42.
43.void delay2(uchar k)
44. {
45.
46. uchar s;
47.for(s = 0 ; s 48.
49. }
50.
51./********************************************************/
52./*
53./*步进电机正转
54./*
55./********************************************************/
56.void motor_ffw()
57.{
58. uchar i;
59.
60.for (i=0; i<8; i++) //一个周期转30度
61. {
62. P0 = FFW[i];//取数据
63. addr0 = 1;
64. addr1 = 0;
65. addr2 = 1;
66. addr3 = 1;
67. addr3 = 0;
68. delay(); //调节转速
69. }
70.}
71.
72./********************************************************/
73./*
74./*步进电机反转
75./*
76./********************************************************/
77.void motor_rev()
78.{
80.
81.for (i=0; i<8; i++) //一个周期转30度
82. {
83. P0 = REV[i]; //取数据
84. addr0 = 1;
85. addr1 = 0;
86. addr2 = 1;
87. addr3 = 1;
88. addr3 = 0;
89. delay(); //调节转速
90. }
91.}
92.
93./********************************************************
94.*
95.*步进电机运行
96.*
97.*********************************************************/
98.void motor_turn()
99.{
100. uchar x;
101. rate=0x30;
102. x=0xf0;
103.do
104. {
105. motor_ffw(); //正转加速
106. rate--;
107. }while(rate!=0x0a);
108.
109.do
110. {
111. motor_ffw(); //正转匀速
112. x--;
113. }while(x!=0x01);
114.
115.do
116. {
117. motor_ffw(); //正转减速
118. rate++;
119. }while(rate!=0x30);
120.do
121. {
122. motor_rev(); //反转加速
