[嵌入式]蓝桥杯单片机第六届

全部文件：提取码：azxy
直接看题目吧。我感觉这一届的主要考点是如何用定时器读取10个温度值。

#include "STC15F2K60S2.h"
#include "intrins.h"
#include "ds1302.h"
#include "onewire.h"
typedef unsigned char u8;
typedef unsigned int u16;
sbit S4=P3^3;
sbit S5=P3^2;
sbit S6=P3^1;
sbit S7=P3^0;
extern unsigned char time[3];
//					0	 1	  2	   3    4    5    6    7    8    9  ??  ?//
u8 code duan[12]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff,0xbf};
u8 temp_cc[10];
u8 temp=0;
u8 time_xz=1;
u8 num=0;
u8 model=0;
u8 led_flag=0;
u8 count=0;
u8 count1=0;

void delay(u16 i)
{
	while(i--);
}

void Timer0Init(void)		//5ms 12.000MHz
{
	AUXR |= 0x80;		
	TMOD &= 0xF0;	
	TL0 = 0xA0;		
	TH0 = 0x15;		
	TF0 = 0;		
	ET0 = 1;
	EA = 1;
}

void Service_T0() interrupt 1
{
	count++;
	if(count==200)
	{
		count=0;
		count1++;
	}
	if(count1==time_xz)
	{
		count1=0;
		temp_cc[num]=temp;
		num++;
	}
	if(num==10)
	{
		TR0=0;
		model=2;
		num=0;
		led_flag=1;
	}
}

void Chan_hc573(chose)
{
	switch(chose)
	{
		case 4:
			P2 = (P2 & 0x1f) | 0x80; break;
		case 5:
			P2 = (P2 & 0x1f) | 0xa0; break;
		case 6:
			P2 = (P2 & 0x1f) | 0xc0; break;
		case 7:
			P2 = (P2 & 0x1f) | 0xe0; break;
	}
}

void Init_system()
{
	Chan_hc573(5);
	P0=0x00;
	Chan_hc573(4);
	P0=0xff;
}

void Smg_display(u8 com,u8 dat)
{
	Chan_hc573(7);
	P0=0xff;
	Chan_hc573(6);
	P0=0x01<<com;
	Chan_hc573(7);
	P0=dat;
}

void Close_smg()
{
	Chan_hc573(6);
	P0=0x00;
	Chan_hc573(7);
	P0=0xff;
}

void Display_stat()
{
	if(model==0)
	{
		Smg_display(0,duan[10]); delay(1000);
		Smg_display(1,duan[10]); delay(1000);
		Smg_display(2,duan[10]); delay(1000);
		Smg_display(3,duan[10]); delay(1000);
		Smg_display(4,duan[10]); delay(1000);
		Smg_display(5,duan[11]); delay(1000);
		Smg_display(6,duan[time_xz/10]); delay(1000);
		Smg_display(7,duan[time_xz%10]); delay(1000);
		Close_smg();
	}
	else if(model==1)
	{
		Smg_display(0,duan[time[0]/16]); delay(1000);
		Smg_display(1,duan[time[0]%16]); delay(1000);
		if(time[2]%16%2==0)
		{
			Smg_display(2,duan[11]); delay(1000);
			Smg_display(5,duan[11]); delay(1000);
		}
		else
		{
			Smg_display(2,duan[10]); delay(1000);
			Smg_display(5,duan[10]); delay(1000);
		}
		Smg_display(3,duan[time[1]/16]); delay(1000);
		Smg_display(4,duan[time[1]%16]); delay(1000);
		Smg_display(6,duan[time[2]/16]); delay(1000);
		Smg_display(7,duan[time[2]%16]);  delay(1000);
		Close_smg();
	}
	if(model==2)
	{
		Smg_display(0,duan[11]); delay(1000);
		Smg_display(1,duan[0]); delay(1000);
		Smg_display(2,duan[num]); delay(1000);
		Smg_display(3,duan[10]); delay(1000);
		Smg_display(4,duan[10]); delay(1000);
		Smg_display(5,duan[11]); delay(1000);
		Smg_display(6,duan[temp_cc[num]/10]); delay(1000);
		Smg_display(7,duan[temp_cc[num]%10]); delay(1000);
		Close_smg();
	}
}

void Key_down()
{
	if(S4==0)
	{
		delay(100);
		if(S4==0)
		{
			while(S4==0) {Display_stat();}
			if(model==0)
			{
				if(time_xz==1) {time_xz=5;}
				else if(time_xz==5) {time_xz=30;}
				else if(time_xz==30) {time_xz=60;}
				else if(time_xz==60) {time_xz=1;}
			}
		}
	}
	if(S5==0)
	{
		delay(100);
		if(S5==0)
		{
			while(S4==0) {Display_stat();}
			if(model==0) {TR0=1;model=1;}
		}
	}
	if(S6==0)
	{
		delay(100);
		if(S6==0)
		{
			while(S6==0) {Display_stat();}
			if(model==2)
			{
				led_flag=0;
				num++;
				if(num==10) {num=0;}
			}
		}
	}
	if(S7==0)
	{
		delay(100);
		if(S7==0)
		{
			while(S7==0) {Display_stat();}
			if(led_flag==0)
			{
				if(model==2) {model=0;}
			}
		}
	}
}

void LED()
{
	Chan_hc573(4);
	if(led_flag==1)
	{
		if(time[2]%16%2==0) {P00=0;}
		else {P00=1;}
	}
	else {P00=1;}
}

void main()
{
	Init_system();
	Timer0Init();
	Wire_time();
	while(1)
	{
		LED();
		Key_down();
		Read_time();
		Display_stat();
		temp=DS18B20_Read();
	}
}