51单片机PWM直流电机测速proteus仿真加源代码

helendcany · 发表于 2019-1-16 10:33

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51单片机PWM直流电机测速proteus仿真加源代码
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单片机源代码：
#include <reg51.h>
#include <math.h>
#define uchar unsigned char
#define uint unsigned int
#define ON 0
#define OFF 1
sbit PWM=P3^5;
sbit MP=P3^4;
bit FLAG=0;
uchar code dispbit[6]=
{
0x20,0x10,0x08,0x04,0x02,0x01
}
;

uchar code seg[]=
{
0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90
}
;
//0,1,2,3,4,5,6,7,8,9
uchar disbuf[6]=
{
0,0,0,0,10,10
}
;
uint temp[6];
uint discount=0;
uint timecount=0;
//定时的次数
uint T0count=0;
uint hus=0;
uint k=60;
uint Vc;
uint Vs;
uint tm=3000;
uint x;
void t0_serv()interrupt 1
{
T0count++;
}
void t1_serv()interrupt 3
{
PWM=1;
TH1=(65536-tm)/256;
TL1=(65536-tm)%256;
hus++;
if(hus==tm)
{
      PWM=0;
      TH1=(25536+tm)/256;
      TL1=(25536+tm)%256;

}
timecount++;
if(timecount==250)
{
      //FLAG=1;
      TR0=0;
      hus=0;
      timecount=0;
      Vc=T0count*65536+TH0*256+TL0;
      Vs=144;
      if(abs(Vc-Vs)>5)
      {
         tm=abs(k*(Vc-Vs));
         T0count=0;
         TR0=1;
         TR1=1;
         ET0=1;
         ET1=1;
         EA=1;
      }
      FLAG=1;
      TR0=0;
      timecount=0;
}
P0=dispbit[discount];
P1=seg[disbuf[discount]];
discount++;
if(discount==6)
{
      discount=0;
}
}
void main()
{
uint i;
TMOD=0x15;
TH0=0;
TL0=0;
TH1=(65536-tm)/256;
TL1=(65536-tm)%256;
TR0=1;
TR1=1;
ET0=1;
ET1=1;
EA=1;
while(1)
{
      if(FLAG==1)
      {
         FLAG=0;
         x=T0count*65536+TH0*256+TL0;
         for(i=0;i<6;i++)
         {
            temp=0;, \& n. k+ N  T; A3 |
         }5 P+ s% |4 k1 _
         i=0;
9 p+ f& Q$ h) n3 T  I          while(x/10)
! ^/ ]$ i2 O8 G8 ]' c! b          {
" z4 T& D3 o) c! \$ O2 ~+ y( e( @             temp=x%10;% D9 n# S( m6 s* X  z
            x=x/10;
# Y( Z0 }9 U; R; a- S. c4 L. \' r, P4 X             i++;& \0 K8 s5 |+ O, ?: u# |& K+ w' j
         }& ?5 i/ ^* K0 s' Y. `( V0 ?
         temp=x;$ x# _- ~/ ]0 y5 b0 i5 L1 b3 e
         for(i=0;i<6;i++); J& h5 x% `. v) R, e4 x7 x9 Z& J
         {7 n8 m% q! Y3 B
            disbuf=temp;/ ]( c. B6 ^9 n0 N# f
         }4 \; C( P( w. }) B/ N  R* x8 W. ~

' G8 K. `. z7 s% w% s$ s          timecount=0;6 X$ A7 G5 K% A# |" ]
         T0count=0;
5 ]  ]- r7 W# V6 l          TH0=0;, I3 W* c8 G  x5 d* T8 i
         TL0=0;
, R0 }5 J8 |( Z) n" S8 E( M6 G          T0count=0;
+ h+ I( g$ v5 H' y, Z          TR0=1;
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      }1 \3 c+ n6 ?& w0 F' R5 F" d% `
}+ i5 J! \7 W6 p% N: {
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sunygd · 发表于 2019-1-16 21:56

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51单片机PWM直流电机测速proteus仿真加源代码

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