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#include<reg52.h>
#include<stdio.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit RS = P2^4;//1602數(shù)據(jù)/命令選擇端（H：數(shù)據(jù)寄存器L：指令寄存器）
sbit RW = P2^5;//1602讀/寫選擇端
sbit E = P2^6;//1602使能信號端
sbit key1=P3^0;//用戶按鍵
sbit key2=P3^1;
sbit key3=P3^2;
sbit key4=P3^3;
sbit key5=P3^4;
uchar code B_Rotation[8]={0x7f,0x3f,0xbf,0x9f,0xdf,0xcf,0xef,0x6f}; //反轉(zhuǎn)表格
uchar code F_Rotation[8]={0xef,0xcf,0xdf,0x9f,0xbf,0x3f,0x7f,0x6f}; //正轉(zhuǎn)表格
uchar table1[]="dir: + spe:005";
uchar table2[]="cir:000 ang:000";
uchar num;
uint key,flag,speed=5,zflag,znum,fflag,fnum,select,pp,qq;
//1鍵值2鍵值標(biāo)志3速度4正轉(zhuǎn)標(biāo)志5正轉(zhuǎn)圈數(shù)6反轉(zhuǎn)標(biāo)志7反轉(zhuǎn)圈數(shù)8正轉(zhuǎn)角度9反轉(zhuǎn)角度10選擇
float zang,fang;
/******************************************************************/
/* 延時函數(shù) Xms */
/******************************************************************/
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
/******************************************************************/
/* LCD1602寫命令操作 */
/******************************************************************/
void WriteCommand(uchar com)
{
delay(5);//操作前短暫延時，保證信號穩(wěn)定
E=0;
RS=0;
RW=0;
P0=com;
E=1;
delay(5);
E=0;
}
/******************************************************************/
/* LCD1602寫數(shù)據(jù)操作 */
/******************************************************************/
void WriteData(uchar dat)
{
delay(5); //操作前短暫延時，保證信號穩(wěn)定
E=0;
RS=1;
RW=0;
P0=dat;
E=1;
delay(5);
E=0;
}
/******************************************************************/
/* 1602初始化程序 */
/******************************************************************/
void InitLcd()//1602初始化程序
{
delay(15);
WriteCommand(0x38); //display mode
WriteCommand(0x38); //display mode
WriteCommand(0x38); //display mode
WriteCommand(0x06); //當(dāng)讀或?qū)懸粋€字符后地址指針加一，且光標(biāo)加一
WriteCommand(0x0c); //顯示開及光標(biāo)不顯示
WriteCommand(0x01); //清屏
WriteCommand(0x80);
for(num=0;num<15;num++)//第一行的顯示
{
WriteData(table1[num]);
delay(15);
}
WriteCommand(0x80+0x40);//第二行的顯示
for(num=0;num<15;num++)
{
WriteData(table2[num]);
delay(15);
}
}
/******************************************************************/
/* 獨立鍵盤掃描函數(shù) */
/******************************************************************/
void keyscan()
{
P3=0xff;//拉高P3口，以讀取P3口的值
if(key1==0)//鍵1被按下
{
delay(5);//延時消抖
if(key1==0)
{
flag=1;
}
while(!key1);
delay(5);//延時消抖
while(!key1);//松手檢測
}
if(key2==0)
{
delay(5);
if(key2==0)
{
flag=2;
}
while(!key2);
delay(5);
while(!key2);
}
if(key3==0)//鍵1被按下
{
delay(5);//延時消抖
if(key3==0)
{
flag=3;
}
while(!key3);
delay(5);//延時消抖
while(!key3);//松手檢測
}
if(key4==0)
{
delay(5);
if(key4==0)
{
flag=4;
}
while(!key4);
delay(5);
while(!key4);
}
if(key5==0)
{
delay(5);
if(key5==0)
{
flag=5;
}
while(!key5);
delay(5);
while(!key5);
}
}
/******************************************************************/
/* 1602顯示3位數(shù) */
/******************************************************************/
void write_sfm(uchar add,uint date)//1602顯示
{
uchar bai,shi,ge;
bai=date/100;
shi=date%100/10;
ge=date%10;
WriteCommand(0x80+add);//設(shè)置數(shù)據(jù)地址指針
WriteData(0x30+bai);
WriteData(0x30+shi);
WriteData(0x30+ge);
WriteData(0x20);
}
/******************************************************************/
/* 鍵值處理 */
/******************************************************************/
void handle_flag()
{
uchar select1;
if(TR0==0&&TR1==0)
{
if(flag==1) //正轉(zhuǎn)
{
WriteCommand(0x80+0x05);
WriteData('+');
delay(20);
select=0;
}
if(flag==2) //反轉(zhuǎn)
{
WriteCommand(0x80+0x05);
WriteData('-');
delay(20);
select=1;
}
if(flag==3)//轉(zhuǎn)速加
{
speed++;
if(speed>=12)
speed=12;
write_sfm(0x0c,speed);//顯示速度
delay(20);
}
if(flag==4) //轉(zhuǎn)速減
{
speed--;
if(speed<=1)
speed=1;
write_sfm(0x0c,speed);//顯示速度
delay(20);
}
}
if(flag==5)////關(guān)閉中斷，停止電機
{
select1++;
select1%=2;
if( select1==0)
{
TR0=0;
TR1=0;
if(select==0)//顯示轉(zhuǎn)動的角度
write_sfm(0x40+0x0c,zang);
else
write_sfm(0x40+0x0c,fang);
}
else
{if(select==0)
{
TR0=1;//開定時器0，產(chǎn)生正轉(zhuǎn)相序
TR1=0;//關(guān)定時器1
}
else
{
TR1=1;//開定時器1，產(chǎn)生反轉(zhuǎn)相序
TR0=0;//關(guān)定時器0
}
}
}
flag=0;
}
void main()
{
pp=0;
qq=0;
InitLcd();
TMOD=0x11;
EA=1;
ET0=1;
ET1=1;
TH0=(65536-(14648/speed))/256;
TL0=(65536-(14648/speed))%256;
TH1=(65536-(14648/speed))/256;
TL1=(65536-(14648/speed))%256;
TR0=0;
TR1=0;
while(1)
{
keyscan();
handle_flag();
}
}
void time0() interrupt 1
{
uint zz;
TH0=(65536-(14648/speed))/256; // 360/(5.625/64)=4096
//假設(shè)60秒轉(zhuǎn)一圈，即60秒中斷4096次，
//那么一次中斷需要60000000/4096=14648個時鐘
//60000000/(4096*speed) zflag=4096時一圈
TL0=(65536-(14648/speed))%256;
zz%=8;
P1=F_Rotation[zz]; //輸出對應(yīng)的相
zz++;
zflag++;
if(zflag==4096) //正轉(zhuǎn)了一圈
{
zflag=0;
znum++;
write_sfm(0x40+0x04,znum);
}
if(zflag%64==0)//計算正轉(zhuǎn)動的角度
{
pp++;
zang=(uint)(pp*5.625);
if(zang==360)
pp=0;
write_sfm(0x40+0x0c,zang);
}
//zang=0.088*zflag;
//write_sfm(0x40+0x0c,zang);
}
void time1() interrupt 3
{
uint ff;
TH1=(65536-(14648/speed))/256;
TL1=(65536-(14648/speed))%256;
ff%=8;
P1=B_Rotation[ff]; //輸出對應(yīng)的相
ff++;
fflag++;
if(fflag==4096) //反轉(zhuǎn)了一圈
{
fflag=0;
fnum++;
write_sfm(0x40+0x04,fnum);
}
if(fflag%64==0)//計算反轉(zhuǎn)動的角度
{
qq++;
fang=(uint)(qq*5.625);
if(fang==360)
qq=0;
write_sfm(0x40+0x0c,fang);
}
}

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