51单片机控制直流电机PWM调速C语言程序.docx
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- 上传时间:2022-11-02
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51单片机控制直流电机PWM调速C语言程序.docx
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#include
#defineucharunsignedchar
#defineuintunsignedint
sbitKEY1=P3^4;
sbitKEY2=P3^5;
sbitKEY3=P3^6;
sbitIN1=P1^0;
sbitIN2=P1^1;
sbitENA=P1^2;
sfrldata=0x80;
sbitdula=P2^6;
sbitwela=P2^7;
//sbitlcden=P3^4;
//uchartimer,ms,t_set=1;
ucharT_N=100;
ucharT_N1=100;
ucharT_H_N=50;
ucharT_H_N1=50;
voidmsplay(uchar,uchar);
ucharcodex1[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x27,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
//ucharcodex2[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xd8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e};
ucharcode x3[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf};
//ucharcode x4[]={0x01,0x02,0x04,0x08,0x10,0x20};
voiddelay(uintz) //延时函数
{
uintx;
for(x=z;x>0;x--);
}
voidKey_Scan()
{
if(KEY1==0)
{
delay(20);
while(!
KEY1);
T_H_N++;
if(T_H_N>=99)
{
T_H_N=99;
}
}
if(KEY2==0)
{
delay(20);
while(!
KEY2);
T_H_N--;
if(T_H_N<=1)
{
T_H_N=1;
}
}
if(KEY3==0)
{
delay(15);
while(!
KEY3);
IN1=~IN1;
IN2=~IN2;
}
}
voidMotor_Init()
{
ENA=0;
IN1=1;
IN2=0;
}
voidTimer0_Init()
{
TMOD=0X12;
TH0=(256-50);
TL0=(256-50);
// TH1=(65535-T_H)/256;
// TL1=(65535-T_H)%256;
EA=1;
ET0=1;
TR0=1;
}
voidmain()
{
uchark3,k2,k1,k0;
Timer0_Init();
Motor_Init();
while
(1)
{
k2=T_H_N/10;k3=T_H_N%10;
k1=0;k0=0;
msplay(k0,2);
msplay(k1,3);
msplay(k2,4);
msplay(k3,5);
Key_Scan();
}
}
voidtimer0()interrupt1
{
TR0=0;
// TH0=(65536-50)/256;
// TL0=(65536-50)%256;
T_H_N1--;
if(0==T_H_N1)
{
ENA=0;
T_H_N1=1;
}
T_N1--;
if(T_N1==0)
{
ENA=1;
T_N1=100;
T_H_N1=T_H_N;
}
TR0=1;
}
voidmsplay(uchary1,uchary2)
{
ldata=x1[y1];
dula=1;
dula=0;
delay
(1);
ldata=x3[y2];
wela=1;
wela=0;
delay
(1);
ldata=0x00;
dula=1;
dula=0;
delay
(1);
ldata=0x0ff;
wela=1;
wela=0;
delay
(1);
}
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