phasemeasure01.c

本代码为一个相位控制器的源程序

#include <reg51.h>
//#include <source7279.h>

#define uchar unsigned char
#define uint unsigned int


unsigned char key_number, j, k;
unsigned int tmr;

sbit cs=P1^3;  // cs at P1.4
sbit clk=P1^2; // clk连接于 P1.5
sbit dat=P1^0; // dat连接于 P1.2
sbit key=P1^1; // key连接于 P1.3
void dis_phase();
void dis_fre();
void transdata();

#define CMD_RESET 0xa4
#define CMD_TEST 0xbf
#define DECODE0 0x80
#define DECODE1 0xc8
#define CMD_READ 0x15
#define UNDECODE 0x90
#define RTL_CYCLE 0xa3
#define RTR_CYCLE 0xa2
#define RTL_UNCYL 0xa1
#define RTR_UNCYL 0xa0
#define ACTCTL 0x98
#define SEGON 0xe0
#define SEGOFF 0xc0
#define BLINKCTL 0x88


uint Afre;

uchar count_time1,count_phase;

bit readdata_flag,starttime_flag,cycle_flag,trans,disfre_flag;

sbit cycle_signal=P2^0;



void initial_7279()
{
 for (tmr=0;tmr<0x2000;tmr++);                 //上电延时
 send_byte(CMD_RESET);                         //复位HD7279A
 cs=1;
}

void write7279(unsigned char cmd, unsigned char dta)
{   send_byte (cmd);
    send_byte (dta);
cs=1;}

unsigned char read7279(unsigned char command)
{  send_byte(command);
cs=1;
return(receive_byte()); }

void send_byte( unsigned char out_byte)//发送一个命令字
{    unsigned char i;
clk=0;
cs=0;
short_delay();
for (i=0;i<8;i++)
{  clk=0;
if (out_byte&0x80){dat=1;}
else {dat=0;}
clk=1;
short_delay();
out_byte=out_byte*2; }
dat=1;}

unsigned char receive_byte(void) //接收一个命令字
{   unsigned char i, in_byte;
 cs=0;
    clk=0;
     dat=1; //设为输入状态
     short_delay();
for (i=0;i<8;i++)
{   clk=0;
in_byte=in_byte*2;
clk=1;
if (dat==1)
{ in_byte=in_byte|0x01;}
 }
dat=1;
//cs=1;
return (in_byte);}

//******************************7279子程序END**********************

//*****************************延时程序***************************

void long_delay(void) //长延时
{ unsigned char i;
for (i=0;i<0x30;i++);}

void short_delay(void) //短延时
{  unsigned char i;
for (i=0;i<8;i++);}

void delay10ms(unsigned char time)
{unsigned char i;
unsigned int j;
for(i=0;i<time;i++)
{  for(j=0;j<0x390;j++);
}
}

//*************************延时程序END*******************************

void Time1_initial()
{

	TR0=0;
	//TR0=0;
	//TF1=0;
	TH0=0x3c;
	TL0=0xb0;
	TR0=1;
	//TR0=1;
//	TCON=0x50;
}


main()
{
	TMOD=0x1;
	//TR0=1;
	//TR1=0;
	//TF1=0;
        TF0=0;
	Time1_initial();
        ET1=1;
	//ET0=1;
	//EX0=1;
	EA=1;
	trans=0;
	starttime_flag=0;
        cycle_signal=0;
	initial_7279();

	//Time1_initial();
	while(1)
	{
		if(starttime_flag)
			Time1_initial();
		if(readdata_flag)
			transdata();
		if(cycle_signal)
			dis_phase();
		if(disfre_flag)
			dis_fre();

	}
}

void dis_phase()
{
	uchar phase,data0,data1,data2,data3;
	phase=count_phase;
	data0=phase%10;
	phase=phase/10;
	data1=phase%10;
	phase=phase/10;
	data2=phase%10;
	data3=phase/10;
	write7279(DECODE1,data0);
	write7279(DECODE1+1,data1);
	write7279(DECODE1+2,data2);
	write7279(DECODE1+3,data3);
	count_phase=0;

}

void dis_fre()
{
	uchar data_fre0,data_fre1,data_fre2,data_fre3,data_fre4;
	uint data_fre;
	data_fre=Afre;
	data_fre0=Afre%10;
	Afre=Afre/10;
	data_fre1=Afre%10;
	Afre=Afre/10;
	data_fre2=Afre%10;
	Afre=Afre/10;
	data_fre3=Afre%10;
	data_fre4=Afre/10;
	write7279(DECODE1,data_fre0);
	write7279(DECODE1+1,data_fre1);
	write7279(DECODE1+2,data_fre2);
	write7279(DECODE1+3,data_fre3);
	write7279(DECODE1+4,data_fre4);
        disfre_flag=0;
        starttime_flag=1;
}


void transdata()
{
	P0=TH0;
	trans=1;
	short_delay();
	trans=0;
	P0=TL0;
	trans=1;
	short_delay();
	trans=0;
	T0=0;
}


void Time1() interrupt 3 using 0
{
	Time1_initail();
	count_time1++;
//	write7279(DECODE1+7,7);
	if(count_time1==20)
	{
		/*TR0=0;
		Afre=T0;
		TR1=0;
		readdata_flag=1;
		disfre_flag=1;
                starttime_flag=0; */
                write7279(DECODE1+7,8);
                count_time1=0;
	}  

}

/*void Int_ser() interrupt 0 using 0
{
	count_phase++;
}   */