蓝桥杯单片机STC15F2K60S2第十二届省赛代码详细讲解（附完整代码）

        本文是写第十二届的蓝桥杯省赛代码，如果是新手的话，欢迎去观看我专门为新手写的一篇。也欢迎收录该专栏。

蓝桥杯单片机STC15F2K60S2第十三届省赛代码详细讲解（附完整代码）

专栏： 

        蓝桥杯单片机 

        接下来直接上正文。

试题

main.c

#include <STC15F2K60S2.H>
#include "display.h"
#include "ds1302.h"
#include "onewire.h"
#include "iic.h"void Key_Board(void);
void Show_Switch(void);
void LED(void);ds1302 Date ={55,59,23};
int Temp;
int Val;
unsigned char Switching=1;
unsigned char Tempara=25;
unsigned char ParaFlag=0;
unsigned char Mode=0;
unsigned char ValFlag=1;void main()
{System_Init();while(1){Temp=Read_Temp();Key_Board();Show_Switch();LED();}
}void Key_Board(void)
{unsigned char Key;P44=0;P42=1;P3 |= 0x0f;Key=P3;Key &=0x0c;if(Key != 0x0c){Delayms(5);if(Key != 0x0c){switch(Key){case 0x04: Switching++; if(Switching>3)Switching=1;break; //S4case 0x08: Mode = !Mode;				break; //S5					}}}while(Key !=0x0c){Key=P3;Key &=0x0c;Show_Switch();}P42=0;P44=1;P3 |= 0x0f;Key=P3;Key &=0x0c;if(Key != 0x0c){Delayms(5);if(Key != 0x0c){if(ParaFlag==1){switch(Key){			case 0x04: Tempara--;break; //S8case 0x08: Tempara++;break; //S9				}}}}while(Key !=0x0c){Key=P3;Key &=0x0c;Show_Switch();}
}void Show_Switch(void)
{switch(Switching){case 1:ParaFlag=0;			ShowNumber(1,12);ShowNumber(5,Temp/1000);ShowFNumber(6,Temp/100%10);ShowNumber(7,Temp/10%10);ShowNumber(8,Temp%10);			break;case 2:ParaFlag=1; ShowNumber(1,11);ShowNumber(7,Tempara/10);ShowNumber(8,Tempara%10);			break;case 3:ParaFlag=0;if(!ValFlag){ShowNumber(1,13);ShowFNumber(6,(unsigned char)Val/100);ShowNumber(7,(unsigned char)Val/10%10);ShowNumber(8,(unsigned char)Val%10);}else {ShowNumber(1,13);ShowNumber(8,Val);}break;}if(Mode == 0){	ValFlag=1;Show_LED(1,ON);if(Temp/100 < Tempara) {Val=0;							}else{Val=5;}Read_DAC(Val);}else{Show_LED(1,OFF);ValFlag=0;Val = Temp*3/20 -2;Read_DAC((Val/100)+(((Val/10)%10)/10)+((Val%10)/10));  }		                      
}void LED(void)
{if(Switching ==1) Show_LED(2,ON);else Show_LED(2,OFF);if(Switching ==2) Show_LED(3,ON);else Show_LED(3,OFF);if(Switching ==3) Show_LED(4,ON);else Show_LED(4,OFF);
}

onewire.c

/*	# 	单总线代码片段说明1. 	本文件夹中提供的驱动代码供参赛选手完成程序设计参考。2. 	参赛选手可以自行编写相关代码或以该代码为基础，根据所选单片机类型、运行速度和试题中对单片机时钟频率的要求，进行代码调试和修改。
*/
#include "onewire.h"
//
void Delay_OneWire(unsigned int t)  
{unsigned char i;while(t--){for(i=0;i<12;i++);}
}//
void Write_DS18B20(unsigned char dat)
{unsigned char i;for(i=0;i<8;i++){DQ = 0;DQ = dat&0x01;Delay_OneWire(5);DQ = 1;dat >>= 1;}Delay_OneWire(5);
}//
unsigned char Read_DS18B20(void)
{unsigned char i;unsigned char dat;for(i=0;i<8;i++){DQ = 0;dat >>= 1;DQ = 1;Delay_OneWire(1);if(DQ){dat |= 0x80;}	    Delay_OneWire(5);}return dat;
}//
bit init_ds18b20(void)
{bit initflag = 0;DQ = 1;Delay_OneWire(12);DQ = 0;Delay_OneWire(80);DQ = 1;Delay_OneWire(10); initflag = DQ;     Delay_OneWire(5);return initflag;
}//double Read_Temp(void)
//{
//	unsigned char temp;
//	double Temp;
//	unsigned char Th,Tl;
//	
//	init_ds18b20();
//	Write_DS18B20(0xcc);
//	Write_DS18B20(0x44);
//	init_ds18b20();
//	Write_DS18B20(0xcc);
//	Write_DS18B20(0xbe);
//	
//	
//	Tl=Read_DS18B20();
//	Th=Read_DS18B20();
//		
//	temp=Th<<8;
//	temp |=Tl;
//	Temp = (int)(temp*0.625);
//	return Temp;
//}int Read_Temp(void)
{unsigned char th,tl;int temp;init_ds18b20();Write_DS18B20(0xcc);Write_DS18B20(0x44);init_ds18b20();Write_DS18B20(0xcc);Write_DS18B20(0xbe);tl=Read_DS18B20();th= Read_DS18B20();temp = (th*256 + tl)*6.25;//0.0625return temp;
}

onewire.h

#ifndef  __ONEWIRE_H__
#define  __ONEWIRE_H__#include <STC15F2K60S2.H>//float Read_Temp(void);
int Read_Temp(void);#define DQ  P14#endif

iic.c

/*	#   I2C代码片段说明1. 	本文件夹中提供的驱动代码供参赛选手完成程序设计参考。2. 	参赛选手可以自行编写相关代码或以该代码为基础，根据所选单片机类型、运行速度和试题中对单片机时钟频率的要求，进行代码调试和修改。
*/
#include "iic.h"
#include "intrins.h"
#define DELAY_TIME	5//
static void I2C_Delay(unsigned char n)
{do{_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();		}while(n--);      	
}//
void I2CStart(void)
{sda = 1;scl = 1;I2C_Delay(DELAY_TIME);sda = 0;I2C_Delay(DELAY_TIME);scl = 0;    
}//
void I2CStop(void)
{sda = 0;scl = 1;I2C_Delay(DELAY_TIME);sda = 1;I2C_Delay(DELAY_TIME);
}//
void I2CSendByte(unsigned char byt)
{unsigned char i;for(i=0; i<8; i++){scl = 0;I2C_Delay(DELAY_TIME);if(byt & 0x80){sda = 1;}else{sda = 0;}I2C_Delay(DELAY_TIME);scl = 1;byt <<= 1;I2C_Delay(DELAY_TIME);}scl = 0;  
}//
unsigned char I2CReceiveByte(void)
{unsigned char da;unsigned char i;for(i=0;i<8;i++){   scl = 1;I2C_Delay(DELAY_TIME);da <<= 1;if(sda) da |= 0x01;scl = 0;I2C_Delay(DELAY_TIME);}return da;    
}//
unsigned char I2CWaitAck(void)
{unsigned char ackbit;scl = 1;I2C_Delay(DELAY_TIME);ackbit = sda; scl = 0;I2C_Delay(DELAY_TIME);return ackbit;
}//
void I2CSendAck(unsigned char ackbit)
{scl = 0;sda = ackbit; I2C_Delay(DELAY_TIME);scl = 1;I2C_Delay(DELAY_TIME);scl = 0; sda = 1;I2C_Delay(DELAY_TIME);
}void Read_DAC(double Data)
{
//	double temp;
//	temp = Data/100+Data/10%10/10+Data%10/10;I2CStart();I2CSendByte(0x90);I2CWaitAck();I2CSendByte(0x40);	//通道0x40是发送AD信号I2CWaitAck();I2CSendByte(Data);I2CWaitAck();I2CStop();}

iic.h

#ifndef  __IIC_H__
#define  __IIC_H__#include <stc15.h>#define sda  P21
#define scl  P20//unsigned char Read_ADC(unsigned char channel);
void Read_DAC(double Data);#endif

display.c

#include <STC15F2K60S2.H>
#include "display.h"code unsigned char Show_Number[] = {0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,	//0~90xBF,	//- 100x88,	//A 110xC6,	//C 120x8C	//P 13
};code unsigned char Show_FNumber[] ={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10
};void Select_HC573(unsigned char Number)
{switch(Number){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;}P2=(P2 &0x1f)|0x00;
}void Delayms(int ms)	//@12.000MHz
{unsigned char data i, j;int k;for(k=0;k<ms;k++){i = 12;j = 169;do{while (--j);} while (--i);}
}void System_Init(void)
{P0 =0x00;Select_HC573(5);Select_HC573(6);P0 =0xFF;Select_HC573(4);
}void ShowNumber(unsigned char Pos,unsigned char Data)
{P0 = 0x01<<Pos -1;Select_HC573(6);P0=Show_Number[Data];Select_HC573(7);Delayms(1);P0 = 0x01<<Pos -1;Select_HC573(6);P0=0xff;Select_HC573(7);
}void ShowFNumber(unsigned char Pos,unsigned char Data)
{P0 = 0x01<<Pos -1;Select_HC573(6);P0=Show_FNumber[Data];Select_HC573(7);Delayms(1);P0 = 0x01<<Pos -1;Select_HC573(6);P0=0xff;Select_HC573(7);
}void Show_LED(unsigned char Number,unsigned char state)
{static unsigned char temp=0xff;if(state){switch(Number){case 1:temp &=0xfe;break;case 2:temp &=0xfd;break;case 3:temp &=0xfb;break;case 4:temp &=0xf7;break;}}else{switch(Number){case 1:temp |=0x01;break;case 2:temp |=0x02;break;case 3:temp |=0x04;break;case 4:temp |=0x08;break;}}P0 =temp;Select_HC573(4);
}

display.h

#ifndef		__DISPLAY_H__
#define		__DISPLAY_H__#define ON		1
#define OFF		0void System_Init(void);
void ShowNumber(unsigned char Pos,unsigned char Data);
void ShowFNumber(unsigned char Pos,unsigned char Data);
void Show_LED(unsigned char Number,unsigned char state);
void Delayms(int ms);	//@12.000MHz#endif

ds1302.c

/*	# 	DS1302代码片段说明1. 	本文件夹中提供的驱动代码供参赛选手完成程序设计参考。2. 	参赛选手可以自行编写相关代码或以该代码为基础，根据所选单片机类型、运行速度和试题中对单片机时钟频率的要求，进行代码调试和修改。
*/								
#include "ds1302.h"
#include <STC15F2K60S2.H>sbit SCK = P1^7;		
sbit SDA = P2^3;		
sbit RST = P1^3; //
void Write_Ds1302(unsigned  char temp) 
{unsigned char i;for (i=0;i<8;i++)     	{ SCK = 0;SDA = temp&0x01;temp>>=1; SCK=1;}
}   //
void Write_Ds1302_Byte( unsigned char address,unsigned char dat )     
{RST=0;	_nop_();SCK=0;	_nop_();RST=1; 	_nop_();  Write_Ds1302(address);	Write_Ds1302(dat);		RST=0; 
}//
unsigned char Read_Ds1302_Byte ( unsigned char address )
{unsigned char i,temp=0x00;RST=0;	_nop_();SCK=0;	_nop_();RST=1;	_nop_();Write_Ds1302(address);for (i=0;i<8;i++) 	{		SCK=0;temp>>=1;	if(SDA)temp|=0x80;	SCK=1;} RST=0;	_nop_();SCK=0;	_nop_();SCK=1;	_nop_();SDA=0;	_nop_();SDA=1;	_nop_();return (temp);			
}#define	WP		0x8e
#define W_Sec	0x80
#define R_Sec	0x81
#define W_Min	0x82
#define R_Min	0x83
#define W_Hour	0x84
#define R_Hour	0x85void Write_Time(ds1302 *Date)
{unsigned char Sec,Min,Hour;Hour = Date -> Hour/10*16 + Date->Hour%10;Min = Date->Min/10*16+Date->Min%10;Sec = Date->Sec/10*16+Date->Sec%10;Write_Ds1302_Byte(WP,0x00);Write_Ds1302_Byte(W_Sec,Sec);Write_Ds1302_Byte(W_Min,Min);Write_Ds1302_Byte(W_Hour,Hour);Write_Ds1302_Byte(WP,0x00);
}ds1302 Read_Time(void)
{unsigned char Hour,Min,Sec;ds1302 Date;Hour =  Read_Ds1302_Byte(R_Hour);Min =  Read_Ds1302_Byte(R_Min);Sec =  Read_Ds1302_Byte(R_Sec);Date.Hour=Hour/16*10+Hour%16;Date.Min=Min/16*10+Min%16;Date.Sec=Sec/16*10+Sec%16;return Date;
}

ds1302.h

#ifndef  __DS1302_H__
#define  __DS1302_H__#include <STC15F2K60S2.H>
#include "intrins.h"typedef struct {unsigned char Sec;unsigned char Min;unsigned char Hour;
}ds1302;void Write_Time(ds1302 *Date);
ds1302 Read_Time(void);#endif