STC单片机(无PWM模块)的步进电机驱动程序C语言.doc

基于STC单片机（无PWM模块）的步进电机驱动程序C语言2009-04-08 14:03/从不明白到调试通以后，才发现是超级简单。#include STC12C2052AD.H#include #include 12C56(54)_mode.h#include type.hunsigned int int_flag;/unsigned long int i = 0;void delay(unsigned long int i);void Int0Int(void);void motor_ccw();void motor_cw();void main(void)/初始化IO/P1.4-P1.7为开漏，P1.0-P1.3为准双向口（传统8051 I/O口模式）P1M0 = 0xf0; P1M1 = 0xf0;/ 定义中断触发方式为INT0,INT1 低电平触发TCON = INT0_LOW; /初始化中断 IE = EnI