【51单片机】ULN2003步进电机驱动电路以及控制程序,毕业答辩,求大神们...答:include<reg51.h> define uchar unsigned char uchar stepd[]={0x01,0x03,0x02,0x06,0x04,0xc0,0x08,0x09};uchar num=0,fx=0;sbit key1=P3^0;sbit key2=P3^1;sbit key3=P3^2;void t0isr() interrupt 1 { TH0=(65536-10000)/256;TL0=(65536-10000)%256;P2=stepd[num];if(...