[嵌入式]蓝桥杯单片机第五届

全部文件：提取码：azxy
这一届我感觉的难点应该是温度设置时的按键处理吧。不过每个人的理解不一样，难点感觉也不一样。还是直接看题目吧。

#include "stc15f2k60s2.h"
#include "onewire.h"
typedef unsigned char u8;
typedef unsigned int u16;
sbit H1=P3^0;
sbit H2=P3^1;
sbit H3=P3^2;
sbit H4=P3^3;

sbit L1=P4^4;
sbit L2=P4^2;
sbit L3=P3^5;

u8 code duan[12]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff,0xbf};
u8 temp_setup[4];//温度设置储存数组
u8 model=1;//1为温度显示 2为温度设置
u8 qujian=0;//区间
u8 temp=0;//当前温度
u8 temp_sx=30;//温度上限
u8 temp_xx=20;//温度下限
u8 key_num=0;//按键值
u8 flag=0;//按键标志
u8 mi=0;//温度设置暂存值
u8 num=0;//温度设置时按键按下次数
u8 i=0;//刚进温度设置界面时等待设置温度数码管熄灭
u8 count=0;//定时器累加
u8 led_flag=0;//led标志

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

void Timer0Init(void)		//5ms 12.000MHz
{
	AUXR |= 0x80;		
	TMOD &= 0xF0;	
	TL0 = 0xA0;		
	TH0 = 0x15;	
	TF0 = 0;	
	TR0 = 1;
	ET0=1;
	EA=1;
}

void Service_T0() interrupt 1
{
	count++;
	if(count==160/(2^qujian))
	{
		count=0;
		led_flag=~led_flag;
	}
}

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;
		case 0:
			P2 = (P2 & 0x1f) | 0x00; 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 Temp_display_setup()
{
	if(model==1)
	{
		Smg_display(0,duan[11]); delay(1000);
		Smg_display(1,duan[qujian]); delay(1000);
		Smg_display(2,duan[11]); 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/10]); delay(1000);
		Smg_display(7,duan[temp%10]); delay(1000);
		Close_smg();
	}
	else if(model==2)
	{
		Smg_display(0,duan[11]); delay(1000);
		Smg_display(1,duan[temp_setup[0]]); delay(1000);
		Smg_display(2,duan[temp_setup[1]]); 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_setup[2]]); delay(1000);
		Smg_display(7,duan[temp_setup[3]]); delay(1000);
		Close_smg();
	}
}

void Key_down()
{
	H1=0;
	H2=H3=H4=L1=L2=L3=1;
	if(L1==0)
	{
		delay(100);
		if(L1==0)
		{
			flag=1;
			while(L1==0) {Temp_display_setup();}
			key_num=0;
		}
	}
	else if(L2==0)
	{
		delay(100);
		if(L2==0)
		{
			flag=1;
			while(L2==0) {Temp_display_setup();}
			key_num=1;
		}
	}
	else if(L3==0)
	{
		delay(100);
		if(L3==0)
		{
			flag=1;
			while(L3==0) {Temp_display_setup();}
			key_num=2;
		}
	}
	H2=0;
	H1=H3=H4=L1=L2=L3=1;
	if(L1==0)
	{
		delay(100);
		if(L1==0)
		{
			flag=1;
			while(L1==0) {Temp_display_setup();}
			key_num=3;
		}
	}
	else if(L2==0)
	{
		delay(100);
		if(L2==0)
		{
			flag=1;
			while(L2==0) {Temp_display_setup();}
			key_num=4;
		}
	}
	else if(L3==0)
	{
		delay(100);
		if(L3==0)
		{
			flag=1;
			while(L3==0) {Temp_display_setup();}
			key_num=5;
		}
	}
	H3=0;
	H2=H1=H4=L1=L2=L3=1;
	if(L1==0)
	{
		delay(100);
		if(L1==0)
		{
			flag=1;
			while(L1==0) {Temp_display_setup();}
			key_num=6;
		}
	}
	else if(L2==0)
	{
		delay(100);
		if(L2==0)
		{
			flag=1;
			while(L2==0) {Temp_display_setup();}
			key_num=7;
		}
	}
	else if(L3==0)
	{
		delay(100);
		if(L3==0)
		{
			flag=1;
			while(L3==0) {Temp_display_setup();}
			key_num=8;
		}
	}
	H4=0;
	H2=H3=H1=L1=L2=L3=1;
	if(L1==0)
	{
		delay(100);
		if(L1==0)
		{
			flag=1;
			while(L1==0) {Temp_display_setup();}
			key_num=9;
		}
	}
	else if(L2==0)
	{
		delay(100);
		if(L2==0)
		{
			while(L2==0) {Temp_display_setup();}
			if(model==1) 
			{
				for(i=0;i<4;i++) {temp_setup[i]=10;} 
				model=2; num=0;
			}
			else if(model==2)
			{
				model=1;
				temp_sx=temp_setup[0]*10+temp_setup[1];
				temp_xx=temp_setup[2]*10+temp_setup[3];
			}
		}
	}
	else if(L3==0)
	{
		delay(100);
		if(L3==0)
		{
			while(L3==0) {Temp_display_setup();}
			if(model==2) 
			{
				for(i=0;i<4;i++) {temp_setup[i]=10; num=0;} 
			}
		}
	}
}

void Setup_temp()
{
	if(model==2)
	{
		if(flag==1)
		{
			switch(key_num)
			{
				case 0: mi=0; break;
				case 1: mi=1; break;
				case 2: mi=2; break;
				case 3: mi=3; break;
				case 4: mi=4; break;
				case 5: mi=5; break;
				case 6: mi=6; break;
				case 7: mi=7; break;
				case 8: mi=8; break;
				case 9: mi=9; break;
			}
			if(num<4)
			{
				temp_setup[num]=mi;
				num++;
			}
			flag=0;
		}
	}
}

void Temp_qj()
{
	if(temp<temp_xx) {qujian=0;}
	else if(temp>=temp_xx&&temp<=temp_sx) {qujian=1;}
	else if(temp>temp_sx) {qujian=2;}
	
	if(qujian==0)
	{
		Chan_hc573(4); if(led_flag==0) {P00=0;}//L1
		Chan_hc573(5); P04=0; Chan_hc573(0);
	}
	else if(qujian==1)
	{
		Chan_hc573(4); if(led_flag==0) {P00=0;}//L1
		Chan_hc573(5); P04=0; Chan_hc573(0);
	}
	else if(qujian==2)
	{
		Chan_hc573(4); if(led_flag==0) {P00=0;}//L1
		Chan_hc573(5); P04=1; Chan_hc573(0);
	}
	
	if(temp_xx>temp_sx)
	{
		Chan_hc573(4); P01=0;//L2
	}
}

void main()
{
	Init_system();
	Timer0Init();
	while(1)
	{
		Temp_qj();
		Key_down();
		Setup_temp();
		Temp_display_setup();
		temp=DS18B20_Read();
	}
}