51单片机用四个按键同时控制数码管和步进电机,按键作为加减器,数码管...答:sbit F1 = P1^0;sbit F2 = P1^1;sbit F3 = P1^2;sbit F4 = P1^3;unsigned char code FFW[8]={0xfe,0xfc,0xfd,0xf9,0xfb,0xf3,0xf7,0xf6}; //反转 unsigned char code FFZ[8]={0xf6,0xf7,0xf3,0xfb,0xf9,0xfd,0xfc,0xfe}; //正转 unsigned int K;/ 步进电机驱动...
用stc 89C52单片机实现键盘控制28BYJ-48步进电机的启停 加减速,正反转...答:include<reg52.h> define uchar unsigned signed sbit jia_key=P3^6;sbit jian_key=P3^7;sbit zf_key=P3^5;bit flag=0;uchar codetable[]={0x01,0x02,0x04,0x08,0x08,0x04,0x02,0x01};uchar num,qidong,PWM,table_begin;void delay(uchar 1){ uchar j,k;for(j=i;j>0;j--)fo...