...个三相单三拍的步进电机工作。求大神给出汇编程序,谢谢,急用。_百 ...答:sbit 27_key p3^0; //27步 bit flag=0; //电机正反标志位 uchar bushu,maichong=3,table_begin=0;uchar code table[]={0x01,0x02,0x04,0x04,0x02,0x01};//电机正反转I/O口的高低电平对应表 void delay(uchar i) //延时函数 { uchar j,k;for(j=i;j>0;j--)for(...
通用步进电机控制器设计(精通单片机汇编语言的朋友进)答:MOV DX,0FFE8H MOV AL,00H OUT DX,AL MOV AL,0F0H OUT DX,AL OVER1: STI ;中断子程序--- INT8259:CLI MOV DX,0FFD8H MOV SI,0FFD9H//通过PB7控制正反转 IN AL,SI AND AL,80H JZ X59 XX59: MOV AL,BL OUT DX,AL ...