蓝桥杯单片机：模块代码

main.c

#include "mycode.h"
unsigned char keyvalue,t;
void main()
{SystemInit();//系统初始化Timer0Init();Timer1Init();uart1();EA  = 1;
//  Init_time();while(1){keyvalue=get_keyvalue();if(keyvalue!=0) t = keyvalue;display(0,t/10);display(1,t%10);}
}

mycode.c

#include "mycode.h"
unsigned char code numb[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,
0xbf};unsigned char getkey(void)
{if(!s7)//{delay_ms(10);if(!s7){while(!s7);return s7_press;}}if(!s6)//{delay_ms(10);if(!s6){while(!s6);return s6_press;}}if(!s5)//{delay_ms(10);if(!s5){while(!s5);return s5_press;}}if(!s4)//{delay_ms(10);if(!s4){while(!s4);return s4_press;}}return 0;
}void display(unsigned char x,unsigned char dat)
{HC138(7,0xff);HC138(6,1<<x);HC138(7,numb[dat]);delay_us(500);
}char putchar(char c)
{SBUF=c;while(!TI);TI = 0;return c;
}void Timer0Init(void)      //1毫秒@12.000MHz
{AUXR |= 0x80;     //定时器时钟1T模式TMOD &= 0xF0;       //设置定时器模式TL0 = 0x20;       //设置定时初始值TH0 = 0xD1;       //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;
}
void Timer1Init(void)       //1毫秒@12.000MHz
{AUXR |= 0x40;     //定时器时钟1T模式TMOD &= 0x0F;       //设置定时器模式TL1 = 0x00;       //设置定时初始值TH1 = 0x00;       //设置定时初始值TF1 = 0;      //清除TF1标志
//  TR1 = 1;       //定时器1开始计时
}void SystemInit(void)
{HC138(4,0xff);HC138(5,0x00);HC138(0,0x00);
}
void uart1(void)
{SCON = 0x50;      //8位数据,可变波特率AUXR |= 0x40;      //定时器时钟1T模式AUXR &= 0xFE;       //串口1选择定时器1为波特率发生器TMOD &= 0x0F;        //设置定时器模式TL1 = 0xC7;       //设置定时初始值TH1 = 0xFE;       //设置定时初始值ET1 = 0;      //禁止定时器%d中断TR1 = 1;        //定时器1开始计时ES  = 1;
}
void delay_us(unsigned int t)       //@12.000MHz
{while(t--){_nop_();_nop_();_nop_();_nop_();}
}void delay_ms(unsigned int t)      //@12.000MHz
{unsigned char i, j;while(t--){i = 12;j = 169;do{while (--j);} while (--i);}
}

mycode.h

#ifndef __MYCODE_H__
#define __MYCODE_H__
#include <reg52.h>
#include <string.h>
#include <stdio.h>
#include <math.h>
#include <absacc.h>
#include <intrins.h>
#include "iic.h"
#include "onewire.h"
#include "ds1302.h"
#include "key.h"
#define HC138(x,y)  {P2&=0x1f;P2|=(x<<5);P0=y;}
sfr AUXR  = 0x8e;
sbit s7=P3^0;
sbit s6=P3^1;
sbit s5=P3^2;
sbit s4=P3^3;#define s7_press 1
#define s6_press 2
#define s5_press 3
#define s4_press 4
void Timer0Init(void);      //1毫秒@12.000MHz
void Timer1Init(void);      //1毫秒@12.000MHz
unsigned char getkey(void);
void uart1(void);
void display(unsigned char x,unsigned char dat);
void SystemInit(void);
void delay_us(unsigned int t);      //@12.000MHz
void delay_ms(unsigned int t);      //@12.000MHz
#endif

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=t*10;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;
}unsigned int Read_temp()
{unsigned char L,H;unsigned int temp;init_ds18b20();Write_DS18B20(0xcc);Write_DS18B20(0x44);Delay_OneWire(500);init_ds18b20();Write_DS18B20(0xcc);Write_DS18B20(0xbe);//先低后高L=Read_DS18B20();H=Read_DS18B20();temp=(H<<8)|L;temp=((float)temp*0.0625)*1000+5;temp/=10;return temp;}

onewire.h

#ifndef __ONEWIRE_H
#define __ONEWIRE_Hunsigned int Read_temp(void);#endif

iic.c

#include "iic.h"
#include "reg52.h"
#include "intrins.h"sbit SDA = P2^1;
sbit SCL = P2^0;
#define DELAY_TIME 5//I2C总线内部延时函数
void IIC_Delay(unsigned char i)
{do{_nop_();}while(i--);
}//I2C总线启动信号
void IIC_Start(void)
{SDA = 1;SCL = 1;IIC_Delay(DELAY_TIME);SDA = 0;IIC_Delay(DELAY_TIME);SCL = 0;
}//I2C总线停止信号
void IIC_Stop(void)
{SDA = 0;SCL = 1;IIC_Delay(DELAY_TIME);SDA = 1;IIC_Delay(DELAY_TIME);
}//发送应答或非应答信号
void IIC_SendAck(bit ackbit)
{SCL = 0;SDA = ackbit;                    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;
}//I2C总线发送一个字节数据
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;
}//I2C总线接收一个字节数据
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;
}

void Write_byte_02(unsigned char add,unsigned char dat)
{IIC_Start();IIC_SendByte(0xA0);IIC_WaitAck();IIC_SendByte(add);IIC_WaitAck();IIC_SendByte(dat);IIC_WaitAck();IIC_Stop();
}
void Write_02(unsigned char add,unsigned char *dat)
{IIC_Start();IIC_SendByte(0xA0);IIC_WaitAck();IIC_SendByte(add);IIC_WaitAck();while(*dat!='\0'){IIC_SendByte(*dat);IIC_WaitAck();dat++;}IIC_Stop();
}
unsigned char  Read_byte_02(unsigned char add)
{unsigned char dat;IIC_Start();IIC_SendByte(0xA0);IIC_WaitAck();IIC_SendByte(add);IIC_WaitAck();IIC_Stop();IIC_Start();IIC_SendByte(0xA1);IIC_WaitAck();dat=IIC_RecByte();IIC_WaitAck();IIC_Stop();return dat;
}
void Read24c04(unsigned char add, unsigned char *str ,unsigned char count)
{unsigned char i;for(i=0;i<count;i++){str[i] = Read_byte_02(add);add = add + 0x01;}
}

unsigned char AD_read(unsigned char ch)
{unsigned char dat;IIC_Start();IIC_SendByte(0x90);IIC_WaitAck();IIC_SendByte(ch);IIC_WaitAck();
//  IIC_Stop();IIC_Start();IIC_SendByte(0x91);IIC_WaitAck();dat=IIC_RecByte();IIC_WaitAck();IIC_Stop();return dat;
}
//DA转换需要时间
void DA_write(unsigned char dat)
{IIC_Start();IIC_SendByte(0x90);IIC_WaitAck();IIC_SendByte(0x40);IIC_WaitAck();IIC_SendByte(dat);IIC_WaitAck();IIC_Stop();}
//      m=AD_read(3);
//      DA_write(m);
//      display(5,(m*100/51)/100);
//      display(6,(m*100/51)%100/10);
//      display(7,(m*100/51)%10);
//
//
//      display(0,m/100);
//      display(1,m%100/10);
//      display(2,m%10);
//
//      HC138(6,0xff);
//      HC138(7,0xff);

iic.h

#ifndef _IIC_H
#define _IIC_Hvoid 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);
void Write_byte_02(unsigned char add,unsigned char dat);
unsigned char  Read_byte_02(unsigned char add);
void Write_02(unsigned char add,unsigned char *dat);
void Read24c04(unsigned char add, unsigned char *str ,unsigned char count);
void DA_write(unsigned char dat);
unsigned char AD_read(unsigned char ch);
#endif

ds1302.c

#include "ds1302.h"
#include <reg52.h>
#include <intrins.h>
sbit SCK_1302 = P1^7;
sbit SDA_1302 = P2^3;
sbit RST_1302 = P1^3;
/ 秒   分  时
unsigned char Time[]={0x00,0x51,0x13,0x08,0x04,0x22};
//写字节
void Write_Ds1302(unsigned  char temp)
{unsigned char i;for (i=0;i<8;i++)        { SCK_1302 = 0;SDA_1302 = temp&0x01;temp>>=1; SCK_1302=1;}
}   //向DS1302寄存器写入数据
void Write_Ds1302_Byte( unsigned char address,unsigned char dat )
{RST_1302=0;   _nop_();SCK_1302=0;    _nop_();RST_1302=1;    _nop_();  Write_Ds1302(address);    Write_Ds1302(dat);      RST_1302=0;
}//从DS1302寄存器读出数据
unsigned char Read_Ds1302_Byte ( unsigned char address )
{unsigned char i,temp=0x00;RST_1302=0;    _nop_();SCK_1302=0;    _nop_();RST_1302=1;    _nop_();Write_Ds1302(address);for (i=0;i<8;i++)   {       SCK_1302=0;temp>>=1;    if(SDA_1302)temp|=0x80;    SCK_1302=1;} RST_1302=0;  _nop_();SCK_1302=0;    _nop_();SCK_1302=1;    _nop_();SDA_1302=0;    _nop_();SDA_1302=1;    _nop_();return (temp);
}///
void Init_time()
{Write_Ds1302_Byte(0x8E,0x00);Write_Ds1302_Byte(0x80,Time[0]);//秒Write_Ds1302_Byte(0x82,Time[1]);//分Write_Ds1302_Byte(0x84,Time[2]);//时Write_Ds1302_Byte(0x86,Time[3]);//时Write_Ds1302_Byte(0x88,Time[4]);//时Write_Ds1302_Byte(0x8C,Time[5]);//时Write_Ds1302_Byte(0x8E,0x80);
}unsigned char  BCDtoHEX(unsigned char  BCD)
{   unsigned char tempData;BCD&=0x7f;tempData = (BCD >> 4) * 10 + (BCD & 0x0F);return (tempData);
}
//16进制数转换成BCD码（例如：16转换成0x16）---写时钟使用（写的秒=26，为十进制，需要转换成BCD码=0x26））
//
//uint8_t HEXtoBCD(uint8_t HEX)
//{//  uint8_t tempData;
//
//  tempData = ((HEX / 10) << 0x04) + (HEX % 10);
//  return (tempData);
//}
void Read_ds1302()
{Time[0]=BCDtoHEX(Read_Ds1302_Byte(0x81));Time[1]=BCDtoHEX(Read_Ds1302_Byte(0x83));Time[2]=BCDtoHEX(Read_Ds1302_Byte(0x85));Time[3]=BCDtoHEX(Read_Ds1302_Byte(0x87));Time[4]=BCDtoHEX(Read_Ds1302_Byte(0x89));Time[5]=BCDtoHEX(Read_Ds1302_Byte(0x8D));}

ds1302.h

#ifndef __DS1302_H
#define __DS1302_Hextern unsigned char Time[6];void Init_time();
void Read_ds1302();void Write_Ds1302(unsigned char temp);
void Write_Ds1302_Byte( unsigned char address,unsigned char dat );
unsigned char Read_Ds1302_Byte( unsigned char address );#endif

key.c

#include "key.h"
#include "mycode.h"
sfr P4 = 0xC0;
sbit P42 = P4^2;
sbit P44 = P4^4;
unsigned char get_keyvalue(void)
{unsigned char hang=0,lie=0;P3=0xf0;P42=1;P44=1;if(P3!=0xf0||P42!=1||P44!=1){delay_ms(10);if(P3!=0xf0||P42!=1||P44!=1){P3=0xf0;P42=1;P44=1;if(P44==0)       lie=1;if(P42==0)     lie=2;if((P3&(1<<5))==0)   lie=3;if((P3&(1<<4))==0)   lie=4;P3=0x0f;P42=0;P44=0;if((P3&(1<<0))==0)    hang=1;if((P3&(1<<1))==0)  hang=2;if((P3&(1<<2))==0)  hang=3;if((P3&(1<<3))==0)  hang=4;while(P3!=0x0f);return ((hang-1)*4+lie);}}return 0;}

key.h

#ifndef __KEY_H__
#define __KEY_H__unsigned char get_keyvalue(void);
#endif

蓝桥杯单片机：模块代码相关推荐

蓝桥杯单片机模块代码（AT24C02）(代码+注释)
本模块是上电可擦除EEPROM,用于存储需要的数据.与上一节使用的底层代码相同,运用同一个总线,其操做顺序与PCF8591除第二步几乎完全一样.相同部分具体可看:蓝桥杯单片机模块代码(PCF8591) ...
蓝桥杯单片机模块代码（DS1302时钟芯片）(代码+注释)
最近两天做项目耽误了,现在继续补引脚图: 单片机内部连接方式 : 官方提供底层代码,弄懂原理即可: #include <reg52.h> #include <intrins.h&g ...
蓝桥杯单片机DS18B20代码注释及部分时序图
蓝桥杯单片机蓝桥杯单片机DS18B20代码注释及部分时序图 #include<STC15F2K60S2.H> #include<intrins.h>#define uchar ...
[蓝桥杯单片机]模块学习—中断系统
前一段时间的文章已经跟各位一起刷了一部分的客观题了接下来将会跟大家一起从官方提供的原理图和芯片手册出发练习每个模块的程序编写因为我学习采用的是模块化编程的思路,函数的定义分散在不同的文件中,所以 ...
PCF8591详解(蓝桥杯单片机模块(IIC总线))
文章目录概述特性总体框图引脚功能描述寻址控制字节 D/A转换 D/A转换过程 A/D转换 A/D转换过程蓝桥杯部分原理图部分 AD部分 DA部分结束概述 PCF8591是一款单 ...
蓝桥杯单片机必备代码（零基础也适合）
1.选择不同接口代码,传参4是LED小灯接口,5是蜂鸣器继电器,6是数码管位置,7是数码管显示的数值 //选择接口 void SelectHC573(unsigned char n) {switch( ...
AT24C02详解(蓝桥杯单片机模块(IIC总线))
文章目录特性描述引脚描述: 存储组织: 设备操作(IIC) 设备地址写操作字节写: 页写入: 确认轮询: 读操作确认轮询: 当前地址读取: 任意地址读: 连续顺序读: 蓝桥杯部分特性 2 ...
DS1302详解(蓝桥杯单片机模块)
文章目录特性详细描述命令字节 CE 数据输入数据输出突发模态时钟\日期时钟停止标志写保护时钟\日期突发模式 RAM突发模式数据传输蓝桥杯部分输出特性实时时钟计算秒.分.小时 ...
蓝桥杯单片机之PCF8591模块的使用
蓝桥杯单片机之PCF8591模块的使用简述原理图: 引脚定义: 相关地址 IIC寻址设备地址控制地址 IIC时序分析数模转换D/A 模数转换代码: 一:光敏电阻和可变电阻的AD转换,S4控制 ...
蓝桥杯单片机赛后资料整理——NE555芯片模块与第十届省赛的总结
蓝桥杯单片机赛后资料整理--NE555芯片模块电路原理模块特性驱动方法代码模板个人总结本文适用于 CT107D竞赛板+ IAP15转接板电路原理模块特性 NE555是一种时钟芯片,输 ...

蓝桥杯单片机：模块代码

蓝桥杯单片机：模块代码相关推荐

最新文章

热门文章