www.pudn.com > 030425.rar > 030425.c

/* 
2004.09.09  汽油发电机油门控制电路源程序，采用16MHz晶振， 
			四相步进电机，双4拍控制方式,1:25电机 
 
转速=(fosc/12)*VV_JCOU*n/js_zhuanshu 
	fosc=16*10^6   n=60/96:齿速比  VV_JCOU=脉冲数    js_zhuanshu=计数值 
*/ 
 
#include "reg51.h" 
#define uchar unsigned char 
#define uint unsigned int 
#define sint signed int 
#define ulong unsigned long 
 
#define VV_JCOU 38 
#define VV_STEPMAX 40 
 
/*  8052 Extensions  */ 
sfr T2CON = 0xC8; 
sfr RCAP2L = 0xCA; 
sfr RCAP2H = 0xCB; 
sfr TL2   = 0xCC; 
sfr TH2   = 0xCD; 
sfr T2MOD = 0xC9; 
 
/*  T2CON  */ 
sbit TF2   = 0xCF; 
sbit EXF2  = 0xCE; 
sbit RCLK  = 0xCD; 
sbit TCLK  = 0xCC; 
sbit EXEN2 = 0xCB; 
sbit TR2   = 0xCA; 
sbit C_T2  = 0xC9; 
sbit CP_RL2= 0xC8; 
 
sbit SMSTB=P3^0; 
sbit SMDIN=P3^1; 
sbit SMCLK=P3^2; 
 
sbit K_YM=P3^3; 
 
uchar data Out_P1; 
uchar data Step_time;	//步进延迟时间0-255 
uchar data Step_timcou; 
uchar data Step_cou;    //步进数  0-255 
uchar data Step_cll;	//步进拍  0-4 
uint data js_zhuanshu;        /* use for disper */ 
uchar data tmp_TH2; 
uchar data tmp_TL2; 
uchar data fcount; 
 
uchar bdata F_byte; 
sbit F_di=F_byte^0;		//步进方向，0=关油门，1=开油门 
sbit F_jszs=F_byte^1; 
//sbit a=P1^0;/*橙*/    //2004.09.09 
//sbit b=P1^1;/*红*/ 
//sbit c=P1^2;/*蓝*/ 
//sbit d=P1^3;/*黄*/ 
 
unsigned char code STG10_smg[16]={ 
	0xBD,0xA0,0x3E,0xB6,0xA3,0x97,0x9F,0xB0,0xBF,0xB7, 
	0,0,0,0,0,0 
				}; 
 
void pout(unsigned char cc); 
void disp_time(); 
void OFF_YM(); 
void ON_YM(); 
void ON_YM005(); 
 
/*开油门程序*/ 
void on(void) 
{  
 switch (Out_P1&0x0F){ 
	case 0x03: Out_P1=(Out_P1&0xF0)|0x06;break; 
	case 0x06: Out_P1=(Out_P1&0xF0)|0x0C;break; 
	case 0x0C: Out_P1=(Out_P1&0xF0)|0x09;break; 
 	default:   Out_P1=(Out_P1&0xF0)|0x03;break; 
 				 } 
 P1=Out_P1; 
} 
 
/*关油门程序*/ 
void off(void) 
{  
 switch (Out_P1&0x0F){ 
	case 0x03: Out_P1=(Out_P1&0xF0)|0x09;break; 
	case 0x09: Out_P1=(Out_P1&0xF0)|0x0C;break; 
	case 0x0C: Out_P1=(Out_P1&0xF0)|0x06;break; 
 	default:   Out_P1=(Out_P1&0xF0)|0x03;break; 
 				 } 
 P1=Out_P1; 
} 
 
 
 
void service_int_T0(void) interrupt 1 using 3 
{  
  ET0=0; 
  TL0=0x00; 
  TH0=0xfb; 
 
  if(Step_timcou>0)	Step_timcou--; 
   else{ Step_timcou=Step_time; 
   		 if(Step_cou>0 && Step_cll==0){Step_cll=4;Step_cou--;} 	 
  		 if(Step_cll>0){ 
	 	 if(F_di==0) off(); 
	   	   else on(); 
	 	 Step_cll--; 
	 		    	   }			 
		} 
  ET0=1; 
} 
 
void service_int_T1(void) interrupt 3 using 2 
{  
TR2=0; 
tmp_TH2=TH2; 
tmp_TL2=TL2; 
TH2=0; 
TL2=0; 
F_jszs=1; 
TR2=1; 
} 
  
main() 
{    
  P1=0x00; 
  Out_P1=0x03; 
  Step_cll=0; 
  Step_cou=100; 
  fcount=0; 
  TMOD=0x61; 
  PCON=0; 
 
  TL1=256-VV_JCOU; 
  TH1=256-VV_JCOU; 
 
  TL0=0x00; 
  TH0=0xfb; 
  ET0=1; 
  PT1=1; 
  ET1=1; 
    
  TR0=1; 
  TR1=1; 
    
  T2MOD=0; 
  TL2=0; 
  TH2=0; 
  RCAP2H = 0x00;  //0xF6 
  RCAP2L = 0x00; 
  CP_RL2=1; 
  C_T2=0; 
  TR2=1; 
  
  EA=1; 
 
  js_zhuanshu=12345; 
  F_jszs=1; 
  OFF_YM(); 
   
  //ON_YM(); 
  ON_YM005(); 
 
  disp_time(); 
 
  for (;;) { 
  
	//if(Step_cou==0 && Step_cll==0) {F_di=~F_di;Step_cou=30;} 
	if(F_jszs==1){F_jszs=0;disp_time();} 
	disp_time(); 
	 
			} 
} 
 
 
void disp_time() 
{ 
if(fcount==0){js_zhuanshu=tmp_TH2*256; 
			  js_zhuanshu=js_zhuanshu+tmp_TL2; 
			  } 
else{ 
js_zhuanshu=js_zhuanshu+tmp_TH2*256; 
js_zhuanshu=js_zhuanshu+tmp_TL2; 
js_zhuanshu=js_zhuanshu/2; 
	} 
fcount++; 
if(fcount>10){ 
fcount=0; 
//js_zhuanshu=(80000000*10/(3*16))/js_zhuanshu; 
js_zhuanshu=32000000/js_zhuanshu; 
if(K_YM==1) pout(0); 
 else pout(1); 
pout(0); 
pout(0); 
//pout(STG10_smg[(js_zhuanshu/100000)]);	 
pout(STG10_smg[(js_zhuanshu%100000)/10000]); 
pout(STG10_smg[(js_zhuanshu%10000)/1000]); 
pout(STG10_smg[(js_zhuanshu%1000)/100]); 
pout(STG10_smg[(js_zhuanshu%100)/10]); 
pout(STG10_smg[js_zhuanshu%10]);	 
SMSTB=1; 
SMSTB=0; 
			  } 
} 
	 
void pout(unsigned char cc) 
{ 
unsigned char data k; 
for(k=0;k<8;k++){ 
		SMCLK=0; 
		cc<<=1; 
		SMDIN=~CY; 
		SMCLK=1; 
		  } 
} 
 
void OFF_YM() 
{ 
 
Step_time=3; 
F_di=1; 
 
if(K_YM==1) Step_cou=VV_STEPMAX+20; 
 
while(K_YM==1){;} 
 
Step_cou=0; 
 
} 
 
void ON_YM() 
{ 
Step_time=3; 
F_di=0; 
Step_cou=VV_STEPMAX; 
} 
 
void ON_YM005() 
{ 
Step_time=3; 
F_di=0; 
Step_cou=5; 
}