蓝桥杯大模板
/* 头文件声明区 */
#include <STC15F2K60S2.H>//单片机寄存器专用头文件
#include <Init.h>//初始化底层驱动专用头文件
#include <Led.h>//Led底层驱动专用头文件
#include <Key.h>//按键底层驱动专用头文件
#include <Seg.h>//数码管底层驱动专用头文件
#include <Uart.h>//串口底层驱动专用头文件/* 变量声明区 */
unsigned char Key_Val,Key_Down,Key_Old,Key_Up;//按键专用变量
unsigned char Key_Slow_Down;//按键减速专用变量
unsigned char Seg_Buf[8] = {10,10,10,10,10,10,10,10};//数码管显示数据存放数组
unsigned char Seg_Point[8] = {0,0,0,0,0,0,0,0};//数码管小数点数据存放数组
unsigned char Seg_Pos;//数码管扫描专用变量
unsigned int Seg_Slow_Down;//数码管减速专用变量
unsigned char ucLed[8] = {0,0,0,0,0,0,0,0};//Led显示数据存放数组
unsigned char Uart_Slow_Down;//串口减速专用变量
unsigned char Uart_Recv[10];//串口接收数据储存数组 默认10个字节 若接收数据较长 可更改最大字节数
unsigned char Uart_Recv_Index;//串口接收数组指针
unsigned char Uart_Send[10];//串口接收数据储存数组 默认10个字节 若发送数据较长 可更改最大字节数/* 键盘处理函数 */
void Key_Proc()
{if(Key_Slow_Down) return;Key_Slow_Down = 1;//键盘减速程序Key_Val = Key_Read();//实时读取键码值Key_Down = Key_Val & (Key_Old ^ Key_Val);//捕捉按键下降沿Key_Up = ~Key_Val & (Key_Old ^ Key_Val);//捕捉按键上降沿Key_Old = Key_Val;//辅助扫描变量}/* 信息处理函数 */
void Seg_Proc()
{if(Seg_Slow_Down) return;Seg_Slow_Down = 1;//数码管减速程序}/* 其他显示函数 */
void Led_Proc()
{}/* 串口处理函数 */
void Uart_Proc()
{if(Uart_Slow_Down) return;Uart_Slow_Down = 1;//串口减速程序 }/* 定时器0中断初始化函数 */
void Timer0Init(void) //1毫秒@12.000MHz
{AUXR &= 0x7F; //定时器时钟12T模式TMOD &= 0xF0; //设置定时器模式TL0 = 0x18; //设置定时初始值TH0 = 0xFC; //设置定时初始值TF0 = 0; //清除TF0标志TR0 = 1; //定时器0开始计时ET0 = 1; //定时器中断0打开EA = 1; //总中断打开
}/* 定时器0中断服务函数 */
void Timer0Server() interrupt 1
{ if(++Key_Slow_Down == 10) Key_Slow_Down = 0;//键盘减速专用if(++Seg_Slow_Down == 500) Seg_Slow_Down = 0;//数码管减速专用if(++Uart_Slow_Down == 200) Uart_Slow_Down = 0;//串口减速专用if(++Seg_Pos == 8) Seg_Pos = 0;//数码管显示专用Seg_Disp(Seg_Pos,Seg_Buf[Seg_Pos],Seg_Point[Seg_Pos]);Led_Disp(Seg_Pos,ucLed[Seg_Pos]);
}/* 串口1中断服务函数 */
void Uart1Server() interrupt 4
{if(RI == 1) //串口接收数据{Uart_Recv[Uart_Recv_Index] = SBUF;Uart_Recv_Index++;RI = 0;}
}/* Main */
void main()
{System_Init();Timer0Init();UartInit();while (1){Key_Proc();Seg_Proc();Led_Proc();Uart_Proc();}
}
02 底层
Led.c
#include <Led.h>void Led_Disp(unsigned char addr,enable)
{static unsigned char temp = 0x00;static unsigned char temp_old = 0xff;if(enable)temp |= 0x01 << addr;elsetemp &= ~(0x01 << addr);if(temp != temp_old){P0 = ~temp;P2 = P2 & 0x1f | 0x80;P2 &= 0x1f;temp_old = temp;}
}void Beep(unsigned char flag)
{static unsigned char temp = 0x00;static unsigned char temp_old = 0xff;if(flag)temp |= 0x40;elsetemp &= ~0x40;if(temp != temp_old){P0 = temp;P2 = P2 & 0x1f | 0xa0;P2 &= 0x1f;temp_old = temp; }
}void Relay(unsigned char flag)
{static unsigned char temp = 0x00;static unsigned char temp_old = 0xff;if(flag)temp |= 0x10;elsetemp &= ~0x10;if(temp != temp_old){P0 = temp;P2 = P2 & 0x1f | 0xa0;P2 &= 0x1f;temp_old = temp; }
}
Led.h
#include <STC15F2K60S2.H>void Led_Disp(unsigned char addr,enable);
void Beep(unsigned char flag);
void Relay(unsigned char flag);
Seg.c
#include <Seg.h>unsigned char seg_dula[] = {0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff,0x8e,0xc1};
unsigned char seg_wela[] = {0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};void Seg_Disp(unsigned char wela,dula,point)
{P0 = 0xff;P2 = P2 & 0x1f | 0xe0;P2 &= 0x1f;P0 = seg_wela[wela];P2 = P2 & 0x1f | 0xc0;P2 &= 0x1f;P0 = seg_dula[dula];if(point)P0 &= 0x7f;P2 = P2 & 0x1f | 0xe0;P2 &= 0x1f;
}
Seg.h
#include <STC15F2K60S2.H>void Seg_Disp(unsigned char wela,dula,point);
Key.c
#include <Key.h>//unsigned char Key_Read()
//{
// unsigned char temp = 0;
// P44 = 0;P42 = 1;P35 = 1;P34 = 1;
// if(P33 == 0) temp = 4;
// if(P32 == 0) temp = 5;
// if(P31 == 0) temp = 6;
// if(P30 == 0) temp = 7;
// P44 = 1;P42 = 0;P35 = 1;P34 = 1;
// if(P33 == 0) temp = 8;
// if(P32 == 0) temp = 9;
// if(P31 == 0) temp = 10;
// if(P30 == 0) temp = 11;
// P44 = 1;P42 = 1;P35 = 0;P34 = 1;
// if(P33 == 0) temp = 12;
// if(P32 == 0) temp = 13;
// if(P31 == 0) temp = 14;
// if(P30 == 0) temp = 15;
// P44 = 1;P42 = 1;P35 = 1;P34 = 0;
// if(P33 == 0) temp = 16;
// if(P32 == 0) temp = 17;
// if(P31 == 0) temp = 18;
// if(P30 == 0) temp = 19;
// return temp;
//}unsigned char Key_Read()
{unsigned char temp = 0;if(P33 == 0) temp = 4;if(P32 == 0) temp = 5;if(P31 == 0) temp = 6;if(P30 == 0) temp = 7;return temp;
}
Key.h
#include <STC15F2K60S2.H>unsigned char Key_Read();
Init.c
#include <Init.h>void System_Init()
{P0 = 0xff;P2 = P2 & 0x1f | 0x80;P2 &= 0x1f;P0 = 0x00;P2 = P2 & 0x1f | 0xa0;P2 &= 0x1f;
}
Init.h
#include <STC15F2K60S2.H>void System_Init();
Uart.c
#include <Uart.h>/* 串口初始化函数 */
void UartInit(void) //9600bps@12.000MHz
{SCON = 0x50; //8位数据,可变波特率AUXR |= 0x01; //串口1选择定时器2为波特率发生器AUXR |= 0x04; //定时器时钟1T模式T2L = 0xC7; //设置定时初始值T2H = 0xFE; //设置定时初始值AUXR |= 0x10; //定时器2开始计时ES = 1;EA = 1;
}/* 字节发送函数 */
void SendByte(unsigned char dat)
{SBUF=dat;//将dat数据赋给SBUF，将数据发送出去while(TI == 0);//等待数据发送TI = 0;//将发送标志位清零
}/* 字符串发送函数 */
void Uart_Send_String(unsigned char *dat)
{while(*dat != '\0')//当字符不为空时，继续发送SendByte(*dat++);//发送后指针dat加1，指向下一个字节
}Uart.h
#include <STC15F2K60S2.H>void UartInit(void); //9600bps@12.000MHz
void SendByte(unsigned char dat);
void Uart_Send_String(unsigned char *dat);
ultraspund.c
#include <ultrasound.h>
#include "intrins.h"sbit Tx = P1^0;
sbit Rx = P1^1;void Delay12us() //@12.000MHz
{unsigned char i;_nop_();_nop_();i = 33;while (--i);
}void Ut_Wave_Init() //超声波初始化函数 产生8个40Mhz的方波信号
{unsigned char i;for(i=0;i<8;i++){Tx = 1;Delay12us();Tx = 0;Delay12us();}
}unsigned char Ut_Wave_Data() //超声波距离读取函数
{unsigned int time;//时间储存变量TMOD &= 0x0f;//配置定时器1计时模式TH1 = TL1 = 0;//复位计数值 等待超声波信号发出Ut_Wave_Init();//发送超声波信号TR1 = 1;//开始计时while((Rx == 1) && (TF1 == 0));//等待接受返回信号或者定时器溢出TR1 = 0;//停止计时if(TF1 == 0) //定时器没有溢出{time = TH1 << 8 | TL1;//读取当前时间return (time * 0.017);//返回距离值}else{TF1 = 0;//清除溢出标志位return 0;}
}
ultraspund.h
#include <STC15F2K60S2.H>unsigned char Ut_Wave_Data();
官方会给的3个底层
ds1302.c
#include "ds1302.h"
#include <reg52.h>
#include <intrins.h>sbit SCK = P1^7;
sbit SDA = P2^3;
sbit RST = P1^3; //写字节
void Write_Ds1302(unsigned char temp)
{unsigned char i;for (i=0;i<8;i++) { SCK = 0;SDA = temp&0x01;temp>>=1; SCK=1;}
} //向DS1302寄存器写入数据
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;
}//从DS1302寄存器读出数据
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);
}void Set_Rtc(unsigned char* ucRtc)
{unsigned char i;Write_Ds1302_Byte(0x8e,0x00);for(i=0;i<3;i++)Write_Ds1302_Byte(0x84-2*i,ucRtc[i]);Write_Ds1302_Byte(0x8e,0x80);
}void Read_Rtc(unsigned char* ucRtc)
{unsigned char i;for(i=0;i<3;i++)ucRtc[i] = Read_Ds1302_Byte(0x85-2*i);
}
ds1302.h
#ifndef __DS1302_H
#define __DS1302_Hvoid Write_Ds1302(unsigned char temp);
void Write_Ds1302_Byte( unsigned char address,unsigned char dat );
unsigned char Read_Ds1302_Byte( unsigned char address );
void Set_Rtc(unsigned char* ucRtc);
void Read_Rtc(unsigned char* ucRtc);#endif
iic.c
/*程序说明: IIC总线驱动程序软件环境: Keil uVision 4.10 硬件环境: CT107单片机综合实训平台 8051，12MHz日 期: 2011-8-9
*/#include "iic.h"#include "intrins.h"#define DELAY_TIME 5#define Photo_Res_Channel 0x41
#define Adj_Res_Channel 0x43//总线引脚定义
sbit SDA = P2^1; /* 数据线 */
sbit SCL = P2^0; /* 时钟线 */void IIC_Delay(unsigned char i)
{do{_nop_();}while(i--);
}//总线启动条件
void IIC_Start(void)
{SDA = 1;SCL = 1;IIC_Delay(DELAY_TIME);SDA = 0;IIC_Delay(DELAY_TIME);SCL = 0;
}//总线停止条件
void IIC_Stop(void)
{SDA = 0;SCL = 1;IIC_Delay(DELAY_TIME);SDA = 1;IIC_Delay(DELAY_TIME);
}//发送应答
void IIC_SendAck(bit ackbit)
{SCL = 0;SDA = ackbit; // 0：应答，1：非应答IIC_Delay(DELAY_TIME);SCL = 1;IIC_Delay(DELAY_TIME);SCL = 0; SDA = 1;IIC_Delay(DELAY_TIME);
}//等待应答
bit IIC_WaitAck(void)
{bit ackbit;SCL = 1;IIC_Delay(DELAY_TIME);ackbit = SDA;SCL = 0;IIC_Delay(DELAY_TIME);return ackbit;
}//通过I2C总线发送数据
void IIC_SendByte(unsigned char byt)
{unsigned char i;for(i=0; i<8; i++){SCL = 0;IIC_Delay(DELAY_TIME);if(byt & 0x80) SDA = 1;else SDA = 0;IIC_Delay(DELAY_TIME);SCL = 1;byt <<= 1;IIC_Delay(DELAY_TIME);}SCL = 0;
}//从I2C总线上接收数据
unsigned char IIC_RecByte(void)
{unsigned char i, da;for(i=0; i<8; i++){ SCL = 1;IIC_Delay(DELAY_TIME);da <<= 1;if(SDA) da |= 1;SCL = 0;IIC_Delay(DELAY_TIME);}return da;
}unsigned char Ad_Read(unsigned char addr)
{unsigned char temp;IIC_Start();IIC_SendByte(0x90);IIC_WaitAck();IIC_SendByte(addr);IIC_WaitAck();IIC_Start();IIC_SendByte(0x91);IIC_WaitAck(); temp = IIC_RecByte();IIC_SendAck(1);IIC_Stop();return temp;
}void Da_Write(unsigned char dat)
{IIC_Start();IIC_SendByte(0x90);IIC_WaitAck();IIC_SendByte(0x41);IIC_WaitAck();IIC_SendByte(dat);IIC_WaitAck(); IIC_Stop();
}//函数名：写EEPROM函数
//入口参数：需要写入的字符串，写入的地址(务必为8的倍数)，写入数量
//返回值：无
//函数功能：向EERPOM的某个地址写入字符串中特定数量的字符。
void EEPROM_Write(unsigned char* EEPROM_String, unsigned char addr, unsigned char num)
{IIC_Start();//发送开启信号IIC_SendByte(0xA0);//选择EEPROM芯片，确定写的模式IIC_WaitAck();//等待EEPROM反馈IIC_SendByte(addr);//写入要存储的数据地址IIC_WaitAck();//等待EEPROM反馈 while(num--){IIC_SendByte(*EEPROM_String++);//将要写入的信息写入IIC_WaitAck();//等待EEPROM反馈 IIC_Delay(200); }IIC_Stop();//停止发送
}//函数名：读EEPROM函数
//入口参数：读到的数据需要存储的字符串，读取的地址(务必为8的倍数)，读取的数量
//返回值：无
//函数功能：读取EERPOM的某个地址中的数据，并存放在字符串数组中。
void EEPROM_Read(unsigned char* EEPROM_String, unsigned char addr, unsigned char num)
{IIC_Start();//发送开启信号IIC_SendByte(0xA0);//选择EEPROM芯片，确定写的模式IIC_WaitAck();//等待EEPROM反馈IIC_SendByte(addr);//写入要读取的数据地址IIC_WaitAck();//等待EEPROM反馈 IIC_Start();//发送开启信号IIC_SendByte(0xA1);//选择EEPROM芯片，确定读的模式IIC_WaitAck();//等待EEPROM反馈 while(num--){*EEPROM_String++ = IIC_RecByte();//将要写入的信息写入if(num) IIC_SendAck(0);//发送应答else IIC_SendAck(1);//不应答}IIC_Stop();//停止发送
}
iic.h
# include "STC15F2K60S2.H"void IIC_Start(void);
void IIC_Stop(void);
bit IIC_WaitAck(void);
void IIC_SendAck(bit ackbit);
void IIC_SendByte(unsigned char byt);
unsigned char IIC_RecByte(void);
unsigned char Ad_Read(unsigned char addr);
void Da_Write(unsigned char dat);
//函数名：写EEPROM函数
//入口参数：需要写入的字符串，写入的地址(务必为8的倍数)，写入数量
//返回值：无
//函数功能：向EERPOM的某个地址写入字符串中特定数量的字符。
void EEPROM_Write(unsigned char* EEPROM_String, unsigned char addr, unsigned char num);//函数名：读EEPROM函数
//入口参数：读到的数据需要存储的字符串，读取的地址(务必为8的倍数)，读取的数量
//返回值：无
//函数功能：读取EERPOM的某个地址中的数据，并存放在字符串数组中。
void EEPROM_Read(unsigned char* EEPROM_String, unsigned char addr, unsigned char num);
onewire.c
#include "onewire.h"
#include "reg52.h"sbit DQ = P1^4; //单总线内部延时函数
void Delay_OneWire(unsigned int t)
{t *= 12;while(t--);
}//单总线写操作
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);
}//单总线读操作
unsigned char Read_DS18B20(void)
{unsigned char i;unsigned char dat;for(i=0;i<8;i++){DQ = 0;dat >>= 1;DQ = 1;if(DQ){dat |= 0x80;} Delay_OneWire(5);}return dat;
}//DS18B20初始化
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;
}float rd_temperature()
{unsigned char low,high;init_ds18b20();Write_DS18B20(0xcc);Write_DS18B20(0x44);init_ds18b20();Write_DS18B20(0xcc);Write_DS18B20(0xbe); low = Read_DS18B20();high = Read_DS18B20();return ((high<<8) | low) / 16.0;
}
onewire.h
#ifndef __ONEWIRE_H
#define __ONEWIRE_Hfloat rd_temperature(void); #endif
