📄 freqen.c
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//模块：Freqen.C
//功能：频率计模块
//晶振：24.000MHz
//芯片: STC12C5412AD
//版本：V1.0.0
//设计：魏广寅
//日期：2007.4.10
#include "stc12c5412ad.h"
#define uchar unsigned char
#define uint unsigned int
extern uchar keyfuncindex;
void dis_cls(void);
extern void d0(void);
extern void lcd_init(void);
extern void dis_one_char(uchar x,uchar y,uchar asc_num,bit b_flag);
extern void dis_one_zi(uchar x_add,uchar y_add,uchar code *po,bit back_flag,bit char_moudle);
extern void delay(uint time);
extern uchar bdata gate;
extern void beep(uint time);
void sel_x(uchar x); //74HC390 分频系数选择1，10，100
void delay_1(uchar time);
extern uchar temp_l,temp_h;
extern uchar i;
extern unsigned char code x43[];// 量
extern unsigned char code x44[];// 程
extern unsigned char code x45[];// 切
extern unsigned char code x46[];// 换
extern unsigned char code x47[];// 请
extern unsigned char code x48[];// 稍
extern unsigned char code x49[];// 候
extern unsigned char code x50[];// …
extern unsigned char code x51[];// 周
extern unsigned char code x52[];// 期
extern unsigned char code x7[]; // 频
extern unsigned char code x8[]; // 率
extern uint temp0,temp1,temp2,temp3,temp4;
uchar a1,a2;
sbit sel_1=P1^6;
sbit sel_10=P1^4;
sbit sel_100=P3^4;
sbit p3_5=P3^5;
bit clr_flag0=0;
bit clr_flag1=0;
bit clr_flag2=0;
bit clr_flag3=0;
bit clr_flag4=0;
sbit key0=P3^0;
sbit key1=P3^1;
//--------------------------------------------------------------------
void timer_init()
{
TMOD=0xd1; //T1 做门控计数
TH1=0;
TL1=0;
TH0=0x3c;
TL0=0xb0;
ET0=1;
EA=1;
TR0=1;
TR1=1;
p3_5=1;
}
//--------------------------------------------------------------------
void time_up() interrupt 1 using 3
{
TH0=0x3c;
TL0=0xb0;
if(++i==gate)
{
TR1=0;
temp_l=TL1;
temp_h=TH1;
TH1=0;
TL1=0;
i=0;
TR1=1;
}
}
//--------------------------------------------------------------------
void sel_x(uchar x) //74HC390 分频系数选择1，10，100
{
switch(x)
{
case 1:
{
sel_1=1;
sel_10=0;
sel_100=0;
break;
}
case 10:
{
sel_1=0;
sel_10=1;
sel_100=0;
break;
}
case 100:
{
sel_1=0;
sel_10=0;
sel_100=1;
break;
}
default:
break;
}
}
//--------------------------------------------------------------------
void temp_to_tempx(uint temp)
{
temp0=temp/10000;
temp1=(temp-(temp0*10000))/1000;
temp2=(temp-(temp0*10000)-(temp1*1000))/100;
temp3=(temp-(temp0*10000)-(temp1*1000)-(temp2*100))/10;
temp4=temp%10;
}
//--------------------------------------------------------------------
void dis_mod(unsigned long temp,uchar point,uchar danwei)
{
uchar danwei_t;
temp_to_tempx(temp);
dis_one_zi(0,0,x7,1,1);//频
dis_one_zi(0,1,x8,1,1);//率
dis_one_char(0,11,0x7f,0);
dis_one_char(0,12,danwei,1);
dis_one_char(0,13,'H',1);
dis_one_char(0,14,'z',1);
dis_one_char(0,15,0x7f,0);
dis_one_char(0,4,0x7f,0);
if(temp0!=0)
{
dis_one_char(0,5,temp0+0x30,1);
clr_flag0=0;
}
else
dis_one_char(0,5,0x7f,0);
clr_flag0=1;
dis_one_char(0,10,temp4+0x30,1);
dis_one_char(0,9,temp3+0x30,1);
switch (point)
{
case 0:
{
dis_one_char(0,5,temp0+0x30,1);
dis_one_char(0,6,'.',1);
dis_one_char(0,7,temp1+0x30,1);
dis_one_char(0,8,temp2+0x30,1);
break;
}
case 1:
{
if(temp1==0 && temp0==0)
dis_one_char(0,5,0x7f,0);
dis_one_char(0,6,temp1+0x30,1);
dis_one_char(0,7,'.',1);
dis_one_char(0,8,temp2+0x30,1);
break;
}
case 2:
{
dis_one_char(0,6,temp1+0x30,1);
if(temp1==0 && temp0==0)
dis_one_char(0,6,0x7f,0);
dis_one_char(0,7,temp2+0x30,1);
dis_one_char(0,8,'.',1);
break;
}
default:
break;
}
//--------------------------------------------------------------------
if(danwei=='K' && point==1)
{
temp=1000000/temp;
temp&=0x0000ffff;
temp_to_tempx(temp);
danwei_t='u';
}
if(danwei=='K' && point==2)
{
temp=100000000/temp;
temp&=0x0000ffff;
temp_to_tempx(temp);
danwei_t='n';
}
if(danwei=='M' && point==0)
{
temp=10000000/temp;
temp&=0x0000ffff;
temp_to_tempx(temp);
danwei_t='n';
}
if(danwei=='M' && point==1)
{
temp=1000000/temp;
temp&=0x0000ffff;
temp_to_tempx(temp);
danwei_t='n';
}
dis_one_zi(2,0,x51,1,1);//周
dis_one_zi(2,1,x52,1,1);//期
dis_one_char(2,11,0x7f,0);
dis_one_char(2,12,danwei_t,1);
dis_one_char(2,13,'S',1);
dis_one_char(2,14,0x7f,0);
dis_one_char(2,15,0x7f,0);
dis_one_char(2,4,0x7f,0);
if(temp==65535)
{
dis_one_char(2,6,'O',1);
dis_one_char(2,7,'V',1);
dis_one_char(2,8,'E',1);
dis_one_char(2,9,'R',1);
dis_one_char(2,10,'!',1);
}
else
{
dis_one_char(2,6,temp0+0x30,1);
if(temp0==0)
dis_one_char(2,6,0x7f,0);
dis_one_char(2,7,temp1+0x30,1);
if(temp0==0 && temp1==0)
dis_one_char(2,7,0x7f,0);
dis_one_char(2,8,temp2+0x30,1);
if(temp0==0 && temp1==0 && temp2==0)
dis_one_char(2,8,0x7f,0);
dis_one_char(2,9,temp3+0x30,1);
if(temp0==0 && temp1==0 && temp2==0 && temp3==0)
dis_one_char(2,9 ,0x7f,0);
dis_one_char(2,10,temp4+0x30,1);
}
}
//--------------------------------------------------------------------
void delay_1(uchar time)
{
while(--time!=0)
delay(50000);
}
//--------------------------------------------------------------------
void freq() //频率计子程序
{
unsigned long temp=0x30;
uchar del=5;
timer_init();
reset: gate=4;
sel_x(100);
a1=1;
a2='M';
while(1)
{
//---------------------------------------------------
key1=1;
key0=1;
delay_1(5);
if(key0==0 || key1==0)
goto exit;
temp=temp_h*256+temp_l;
if(TF1)
{
TF1=0;
TH1=0;
TL1=0;
dis_cls();
dis_one_zi(0,0,x43,1,1);
dis_one_zi(0,1,x44,1,1);
dis_one_zi(0,2,x45,1,1);
dis_one_zi(0,3,x46,1,1);
dis_one_zi(0,4,x47,1,1);
dis_one_zi(0,5,x48,1,1);
dis_one_zi(0,6,x49,1,1);
dis_one_zi(0,7,x50,1,1);
goto reset;
}
temp=temp_h*256+temp_l;
if(sel_100==1 && temp<=5000 && gate==4)
{
sel_x(10);
a1=0;
a2='M';
delay_1(del);
}
temp=temp_h*256+temp_l;
if(sel_10==1 && temp<=5000 && gate==4)
{
sel_x(1);
a1=2;
a2='K';
delay_1(del);
}
temp=temp_h*256+temp_l;
if(sel_1==1 && temp<=5000 && gate==4)
{
gate=40;
a1=1;
a2='K';
delay_1(del);
}
//---------------------------------------------------
temp=temp_h*256+temp_l;
if(sel_1==1 && temp>50010 && gate==40)
{
gate=4;
a1=2;
a2='K';
delay_1(del);
}
temp=temp_h*256+temp_l;
if(sel_1==1 && temp>50010 && gate==4)
{
sel_x(10);
a1=0;
a2='M';
delay_1(del);
}
temp=temp_h*256+temp_l;
if(sel_10==1 && temp>50010 && gate==4)
{
sel_x(100);
a1=1;
a2='M';
delay_1(del);
}
if(temp>50000)
goto reset;
dis_mod(temp,a1,a2);
//---------------------------------------------------
}
exit: TMOD=0x00; //T1 做门控计数
ET0=0;
EA=0;
TR0=0;
TR1=0;
p3_5=0;
delay_1(10);
keyfuncindex=0;
d0();
}
//--------------------------------------------------------------------
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