教你用L298驱动步进电机

1、L298驱动步进电机（原创）2009-03-30 13:52#include #include "reg52.h"                               / 包含头文件    /* 与编译器无关的数据类型定义 */*/typed

2、ef unsigned char      uint8;                / 无符号8位整型变量typedef signed   char      int8;             

3、    / 有符号8位整型变量typedef unsigned short     uint16;               / 无符号16位整型变量typedef signed   short     int16;         &#

4、160;      / 有符号16位整型变量typedef unsigned int       uint32;               / 无符号32位整型变量typedef signed   int       int32;   &

5、#160;            / 有符号32位整型变量typedef float              fp32;                 / 单精度浮点数（32位长度）typedef

6、 double             fp64;                 / 双精度浮点数（64位长度）/*/sbit P0_0 = P0 0; sbit P0_1 = P0 1; sbit P0_2 = P0 2; sbit P0_3 = P0 3; sbit P0_4 = P0 4; sbit P0_5

7、= P0 5; sbit P0_6 = P0 6; sbit P0_7 = P0 7;/ 定义位变量 /=/=/* 函数名称：Delay()* 功    能：软件延时* 入口参数：count    延时参数，值越大，延时越长* 出口参数：无*/void Delay(uint16 count)uint8 i;               while(-count != 0) &#

8、160;               for(i = 0; i < 125; i+);                / "" 表示空语句,CPU空转。              &#

9、160;                    / i 从0加到125，在12M晶体下CPU大概耗时1毫秒/=void main (void)                while(1)      

10、;                                   P0_0=1;P0_1=0;P0_2=0;P0_3=0;Delay(50);          &

11、#160;                    /控制转速    P0_0=1;P0_1=1;P0_2=0;P0_3=0;Delay(50);P0_0=0;P0_1=1;P0_2=0;P0_3=0;    Delay(50);    P0_0=0;P0_1=1;P0_2=1;P0_3=0;Delay(50);    P0_0=0;P0_1=0;P0_2=1;P0_3=0;    Delay(50);P0_0=0;P0_1=