【蓝桥杯-单片机省赛】第十届

2022-04-20 22:33:53 阅读：207 来源： 互联网

标签：count led 21 smgdat void else 蓝桥单片机省赛

1.主函数main.c

#include "stc15f2k60s2.h"
#include "hc138.h"
#include "smg.h"
#include "key.h"
#include "fre.h"
#include "iic.h"

extern unsigned char flag_500ms;
extern bit swit;
extern bit dac_out;
extern bit led_swi;
extern bit smg_swi;

long count = 0;//频率读取
unsigned int adc = 0;//rb2 电压读取
unsigned char led[6]={0,0,0,0,0,0};

void swit_fun(void);
void dispay_fun(void);
void dac_fun(void);
void led_fun(void);


void main(void)	{
	all_init();
	Timer2Init();
	Timer0Init();
	while(1)	{
	
		BIN();
		swit_fun();
		dispay_fun();//界面切换
		dac_fun();//DAC 输出
		led_fun();
		
	}
}
void led_fun(void)	{
	
  if (led_swi == 1)	{
			hc138(4);
			P0 = 0xff;
			P2 &= 0x1f;			
	}	
	else if (led_swi == 0)	{
		
		/*--------- L1 与 L2----------*/
			if (swit == 0)	{//ADC L1
//				hc138(4);
//				P0 = 0xfe;
//				P2 &= 0x1f;
				
				/*----L3-----*/
				if ((adc>=150 && adc < 250) || adc>350)
					led[3] = 1;
				else led[3] = 0;
				
				/*-----L5--------*/
				if (dac_out == 0)//2.0v
					led[5]=0;
				else led[5]=1;
				
				if (led[3] == 1 && led[5] == 1){
					hc138(4);
					P0 = ~0x15;
					P2 &= 0x1f;					
				}
				else if (led[3] == 0 && led[5] == 1)	{
					hc138(4);
					P0 = ~0x11;
					P2 &= 0x1f;					
				}
				else if (led[3] == 1 && led[5] == 0)	{
					hc138(4);
					P0 = ~0x05;
					P2 &= 0x1f;								
				}
				else {
					hc138(4);
					P0 = 0xfe;
					P2 &= 0x1f;		
				}					
			}
			else if (swit == 1)	{//L2

				/*----L4-----*/
				if ((count>=1000 && count < 5000) || count>10000)
					led[4] = 1;
				else led[4] = 0;	

				if (led[4] == 1)	{
					hc138(4);
					P0 = ~0x0a;
					P2 &= 0x1f;					
				
				}
				else {
					hc138(4);
					P0 = ~0x02;
					P2 &= 0x1f;					
				
				}
			}



	}

	

}
void dac_fun(void)	{
	
	if (dac_out == 0) DAC(103);//2.0v
	else if (dac_out == 1) DAC(adc);
	
	
}
void swit_fun(void)	{

	if (swit == 0)	adc = ADC_read(3)*1.963;
	else {
		if (flag_500ms >= 250)	{
					count = Read_fre();
					count *= 2;
					flag_500ms = 0;
		}
	
	}
}

void dispay_fun(void)	{

	if (smg_swi == 1)	{
		
		smgdat[0] = 21;//U
		smgdat[1] = 21;
		smgdat[2] = 21;
		smgdat[3] = 21;
		smgdat[4] = 21;
		smgdat[5] = 21;
		smgdat[6] = 21;
		smgdat[7] = 21;	
	}
	else {
		if (swit == 0)	{
				//电压测量
				
				smgdat[0] = 23;//U
				smgdat[1] = 21;
				smgdat[2] = 21;
				smgdat[3] = 21;
				smgdat[4] = 21;
				smgdat[5] = adc /100 + 10;
				smgdat[6] = adc % 100 /10;
				smgdat[7] = adc % 10;				
				
			}
		else if (swit == 1)	{
				//频率测量
				if (flag_500ms >= 250)	{
					count = Read_fre();
					count *= 2;
					flag_500ms = 0;
				}
				smgdat[0] = 22;//F
				smgdat[2] = 21;
				smgdat[1] = 21;
				smgdat[6] = count % 100 /10;
				smgdat[7] = count % 10;
				if (count % 100000/ 10000 != 0)	{
					smgdat[2] = 21;
					smgdat[3] = count %100000/ 10000;
					smgdat[4] = count % 10000 /1000;
					smgdat[5] = count % 1000 /100;
				}
				else if (count % 10000 /1000 != 0)	{
					smgdat[2] = 21;
					smgdat[3] = 21;
					smgdat[4] = count % 10000 /1000;
					smgdat[5] = count % 1000 /100;		
				}
				else if (count % 1000 /100  != 0)	{
					smgdat[2] = 21;
					smgdat[3] = 21;
					smgdat[4] = 21;
					smgdat[5] = count % 1000 /100;			
				}
						
				
			}
	
	}

}

2.频率测量

#include "stc15f2k60s2.h"




void Timer0Init(void)		//100微秒@12.000MHz
{
	AUXR |= 0x80;		//定时器时钟1T模式
	TMOD &= 0xF0;		//设置定时器模式
	
	TMOD |= 0x04;
	TL0 = 0;		//设置定时初值
	TH0 = 0;		//设置定时初值
	TF0 = 0;		//清除TF0标志
	
	TR0 = 0;		//定时器0开始计时
	
	EA = 1;
	ET0 = 0;
}


unsigned int Read_fre(void)	{

	unsigned int count_f = 0;
	TR0 = 0;
	count_f = (TH0<<8) | TL0;
	TH0 = 0;
	TL0 = 0;
	TR0 = 1;
	return count_f;
}

3. iic.c ADC和DAC

// ADC  数 模

unsigned char ADC_read(unsigned char channel)	{

	unsigned char temp;
	EA = 0;
	IIC_Start();
	IIC_SendByte(0x90);//写入
	IIC_WaitAck();
	IIC_SendByte(channel);// 1 光敏电阻  3 滑动变阻器
	IIC_WaitAck();
	
	IIC_Start();
	IIC_SendByte(0x91);//读
	IIC_WaitAck();
	temp = IIC_RecByte();
	IIC_WaitAck();
	IIC_Stop();
	EA = 1;
	return temp;
}

// DAC 数 模

void DAC(unsigned char dat)	{

	EA = 0;
	IIC_Start();
	IIC_SendByte(0x90);
	IIC_WaitAck();
	IIC_SendByte(0x40);
	IIC_WaitAck();
	IIC_SendByte(dat);
	IIC_WaitAck();
	IIC_Stop();
	EA = 1;
}

4.key.c 按键

#include "stc15f2k60s2.h"
#include "hc138.h"

sbit S7 = P3^0;
sbit S6 = P3^1;
sbit S5 = P3^2;
sbit S4 = P3^3;

/*
界面切换
0 电压测量
1 频率测量
*/
bit swit = 0;

/*
	DAC 输出模式
	0 DAC=2.0
	1 DAC=VRB2
*/
bit dac_out = 0;

/*
	LED 指示
	0 开启
	1 关闭
*/
bit led_swi = 0;

/*
	数码管显示
	0 开启
	1 关闭
*/
bit smg_swi = 0;
void Delay5ms()		//@12.000MHz
{
	unsigned char i, j;

	i = 59;
	j = 90;
	do
	{
		while (--j);
	} while (--i);
}


void BIN(void)	{

	if (S7 == 0)	{
		Delay5ms();
		if (S7 == 0)	{
		
			if	(smg_swi == 0)	smg_swi = 1;
			else if (smg_swi == 1) smg_swi = 0;
			
		}
		while(!S7);
	}
	else if (S6 == 0)	{
		Delay5ms();
		if (S6 == 0)	{
		
			if	(led_swi == 0)	led_swi = 1;
			else if (led_swi == 1) led_swi = 0;
			
		}
		while(!S6);
	}
	else if (S5 == 0)	{
		Delay5ms();
		if (S5 == 0)	{
		
			if	(dac_out == 0)	dac_out = 1;
			else if (dac_out == 1) dac_out = 0;
			
		}
		while(!S5);
	}
	else if (S4 == 0)	{
		Delay5ms();
		if (S4 == 0)	{
			
			if	(swit == 0)	swit = 1;
			else if (swit == 1) swit = 0;
			
		}
		while(!S4);
	}
}

5.数码管显示 smg.c

#include "stc15f2k60s2.h"
#include "hc138.h"

unsigned char smgdat[8]={21,21,21,21,21,21,21,21};
unsigned char code SMG[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,
						  0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10,
						  0xbf,0xff,~0x71,~0x3e};
//												F			U
unsigned char POS;
unsigned char flag_500ms = 0;

void Timer2Init(void)		//2毫秒@12.000MHz
{
	AUXR |= 0x04;		//定时器时钟1T模式
	T2L = 0x40;		//设置定时初值
	T2H = 0xA2;		//设置定时初值
	AUXR |= 0x10;		//定时器2开始计时


	/*后加的部分*/
	EA=1;
	IE2|=0x04;
}
void display(unsigned char pos,dat){

	hc138(6);P0=0x01<<pos;P2&=0x1f;
	hc138(7);P0=dat; P2&=0x1f;
}

void T2_Display()interrupt 12
{
	hc138(6);P0=0x00;
	display(POS,SMG[smgdat[POS]]);
	if(++POS==8)POS=0;
	flag_500ms++;
}

标签：count,led,21,smgdat,void,else,蓝桥,单片机,省赛
来源： https://www.cnblogs.com/harper-blogs/p/16172061.html

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【蓝桥杯-单片机省赛】第十届

1.主函数main.c

2.频率测量

3. iic.c ADC和DAC

4.key.c 按键

5.数码管显示 smg.c