8051 step motor with LCD

#include "reg52.h"  

#define Fosc 11059200

#define LEDOff LEDPort = 0x00;

#define LEDPort P0

#define LEDigiCon P2

#define MotorPort P1

#define Step4Cycle 48

#define uchar unsigned char

#define uint unsigned int

bit Finish=0;

bit Move1Step=0;

bit TxEnd=1;

char StepControl=0;

static unsigned char DisplayLocation=0;

static unsigned char IntTimes = 0;

uchar Forward=1;

uchar Reverse=1;

uchar TurnsPerMinute=60;

uint ForwardSteps;

uint ReverseSteps;

unsigned char Ascii[8]={'2','7','3','0','6','7','7','6'};

unsigned char Digi[8]={2,7,3,0,6,7,7,6};

unsigned char LightLevel=3, DigiPoint = 0x90;

unsigned char TempValue;

unsigned char code Data1[][3]={{20,20,20},{30,30,30},{40,40,40},{45,45,60}};

unsigned char code Seg7[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7c,0x07,0x7f,0x67};

void Show01234567onLed(void);

void StepMotorExe(void) ;

void StepMotorRun(void);

void main() 

{

   IE=0x92;

   TMOD=0x21;

   SCON=0xC0;

   TCON=0x50;

   TH1=253;

   TH0=(65536-576)/256;

   TL0=(65536-576)%256;

   TL1=253;

   LEDOff ;

   while(1) {

Digi[2]=11;

Digi[5]=11;

MotorPort=0xf0;

ET2=1;

EA=1;

StepMotorRun();

   SBUF='T'; TxEnd=0;

   } //while

}//main

void ET0_int(void) interrupt 1

{

   TH0=(65536-576)/256;

   TL0=(65536-576)%256;

   Show01234567onLed();

}

void Show01234567onLed(void)

{

if(++IntTimes !=4)

{

switch(LightLevel) //light level control

{

case 0:

if (IntTimes == 1 ) LEDOff ;

case 1:

if (IntTimes == 2 ) LEDOff ;

case 2:

if (IntTimes == 3 ) LEDOff ;

}

return;

}

LEDOff;

IntTimes=0;

if (++DisplayLocation == 8) DisplayLocation = 0;

if (DigiPoint == DisplayLocation)

{

LEDPort = Digi[DisplayLocation];  // LEDPort is P0

LEDPort = Seg7[LEDPort];  // Display 1 - 7 Character

LEDPort |= 0x80 ; //add digi point

} 

else

{

LEDPort = Digi[DisplayLocation];

LEDPort = Seg7[LEDPort];

}

TempValue = DisplayLocation <<2 ;

LEDigiCon &= 0xe3;  // clear p22-24 for DisplayLocation

LEDigiCon |= TempValue; // update p22-24 for DisplayLocation

}

void StepMotorRun(void)

{

int m ;

TR2=1;

for (m=0;m<sizeof(Data1)/3;m++){

SBUF='T';   

ForwardSteps=Data1[m][0];  ReverseSteps=Data1[m][1]; TurnsPerMinute=Data1[m][2]; StepMotorExe();}

MotorPort=0xf0;TR2=0;

}

void  StepMotorExe(void)  

{

float Timer4Step;

Timer4Step=Fosc/12/((float)TurnsPerMinute/60*Step4Cycle);

Digi[6]=TurnsPerMinute/10; 

Digi[7]=TurnsPerMinute%10;  // Display the speed on Led

Ascii[6]=TurnsPerMinute/10+0x30; 

Ascii[7]=TurnsPerMinute%10+0x30;  // Display the speed on Led on SCON

RCAP2H=(65536-Timer4Step/20)/256;

RCAP2L=(65536-(uint)Timer4Step/20)%256;

Finish=0;

while(!Finish)

{

if (Move1Step)

{

Move1Step=0;

if (ForwardSteps !=0){ForwardSteps--;

Digi[0]=ForwardSteps/10; 

Digi[1]=ForwardSteps%10;

Ascii[0]=ForwardSteps/10+0x30; 

Ascii[1]=ForwardSteps%10+0x30;

if(++StepControl>3) StepControl=0;}

else if (ReverseSteps !=0){ReverseSteps--;

Digi[3]=ReverseSteps/10; 

Digi[4]=ReverseSteps%10;

Ascii[3]=ReverseSteps/10+0x30; 

Ascii[4]=ReverseSteps%10+0x30;

if(--StepControl<0) StepControl=3;} else Finish=1; // finish =1 means this workingStep is Finish

switch (StepControl)  // The Step Motor Runing Pulse

{

case 0:MotorPort = 0xf3; break;

case 1:MotorPort = 0xf9; break;

case 2:MotorPort = 0xfc; break;

case 3:MotorPort = 0xf6; break;

}//switch

} //Move1Step

} //while(!Finish)

}

void Time2Int(void) interrupt 5

{static int Count = 0;TF2 = 0;if (Count++ == 19){Move1Step=1;Count=0; }}

void SCON_int(void) interrupt  4 {

if (TI)  // UART Transfer 

{

static char i = 0;

TI = 0; 

if (i > 8) {i= 0;TxEnd = 1; SBUF='T';}

else

{

switch (i)

{

case 0:SBUF = Ascii[0]; break;

case 1:SBUF = Ascii[1]; break;

case 2:SBUF = Ascii[2]; break;

case 3:SBUF = Ascii[3]; break;

case 4:SBUF = Ascii[4]; break;

case 5:SBUF = Ascii[5]; break;

case 6:SBUF = Ascii[6]; break;

case 7:SBUF = Ascii[7]; break;

}

i++;

}

}  //if(TI) UART Transfer

} //interrupt 4