步进电机的的控制以及数码管显示档位和转速.docx

/*本例程主要实现步进电机的的控制以及数码管显示档位和转速*/*S6档位调节 S7暂停并且查看转速 S8正转 S9逆转 * /*数码管第一位显示档位 后四位显示转速*/*发现的问题：由于数码管显示的延时过多，如果让数码管同步显示转速，会出现一闪一闪的现象。我将会考虑用中断定时解决这 个问题。 #includetypedef unsigned char uchar;typedef unsigned int uint;#define t 5#define one 2 /这里只是用了简单的延时函数，一般用中断比较准确/*根据延时算转速：本电机的的步距角为5.625度，减速比为64，设定为ONE时，算出转速：延时为2ms,即2ms/脉冲/* 所以60000ms/30000个脉冲 即1分钟/30000个脉冲 ，由于一个脉冲一个步距角，即1分钟/30000*5.625度=168780度/*即1分钟/168780/360圈，所以468.83圈/分钟（内部），所以（外部）真正看到转速应为468.83/64圈=7.32圈/分钟 #define two 5 /计算得转速为2.93rpm#define three 10 /计算得转速为1.46rpm#define four 30 /计算得转速为0.49rpmuchar temp,num,grade=5; / 设定档bit clockwise=1; / 设定顺时针bit startstop=0; / 设定停止位sbit dula=P26;sbit wela=P27;unsigned char code table0=0x09,0x01,0x03,0x02,0x06,0x04,0x0c,0x08; /正转表unsigned char code table1=0x08,0x0c,0x04,0x06,0x02,0x03,0x01,0x09; /反转表uchar code table2=0x06,0x07,0x80,0x4f, 0x5b ; /一档uchar code table3=0x5b,0x5b ,0x80,0x6f, 0x4f; /二档uchar code table4=0x4f ,0x06,0x80, 0x66,0x7d; /三档uchar code table5=0x66,0x3f,0x80, 0x66, 0x6f; /四档/*延时函数MS*void delay(unsigned char z) unsigned int x,y; for(x=z;x0;x-) for(y=110;y0;y-); /*数码管显示*void display() if(grade=2) /一档 dula=1; P0=table20; dula=0; P0=0xfe; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table21; dula=0; P0=0xfb; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table22; dula=0; P0=0xf7; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table23; dula=0; P0=0xef; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table24; dula=0; P0=0xdf; wela=1; delay(5); P0=0xff; wela=0; if(grade=5) /二档 dula=1; P0=table30; dula=0; P0=0xfe; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table31; dula=0; P0=0xfb; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table32; dula=0; P0=0xf7; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table33; dula=0; P0=0xef; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table34; dula=0; P0=0xdf; wela=1; delay(5); P0=0xff; wela=0; if(grade=10) /三档 dula=1; P0=table40; dula=0; P0=0xfe; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table41; dula=0; P0=0xfb; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table42; dula=0; P0=0xf7; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table43; dula=0; P0=0xef; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table44; dula=0; P0=0xdf; wela=1; delay(5); P0=0xff; wela=0; if(grade=30) /四档 dula=1; P0=table50; dula=0; P0=0xfe; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table51; dula=0; P0=0xfb; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table52; dula=0; P0=0xf7; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table53; dula=0; P0=0xef; wela=1; delay(5); P0=0xff; wela=0; dula=1; P0=table54; dula=0; P0=0xdf; wela=1; delay(5); P0=0xff; wela=0; /*键盘扫描*void keyscan() P3=0xfe; /扫描第一行 temp=P3; temp=temp&0xf0; if(temp!=0xf0) delay(t); temp=P3; temp=temp&0xf0; if(temp!=0xf0) temp=P3; switch(temp) case 0xee: /调节档速 num+; if(num=1)grade=one; if(num=2)grade=two; if(num=3)grade=three; if(num=4)grade=four; num=0; break; case 0xde: startstop=0;break; /停止 case 0xbe: clockwise=1;startstop=1;break; /正转 case 0x7e: clockwise=0;startstop=1;break; /逆转 while(temp!=0xf0) temp=P3; temp=temp&0xf0; /*电机运转方式*void stepmotor() char i,r; while(clockwise & startstop) /正转 keyscan(); for(i=0;i8;i+) /一轮通电 P1=table0i; delay(grade);/通过延时改变速度 while(!clockwise & startstop) /反转 k