蓝桥杯之单片机学习(二十七)——电子钟(附题目和完整代码)

简介: 蓝桥杯之单片机学习(二十七)——电子钟(附题目和完整代码)

博主写题时,两个纰漏


时钟显示顺序错误

再对8位进行定义时,没包装成子函数,显的很啰嗦

一、题目展示


0a2653c851af460fa595bd959398a8f1.png


二、代码展示


2.1 main.c


#include <STC15F2K60S2.h>
#include "ds1302.h"
#include "onewire.h"
#define uchar unsigned char
#define uint unsigned int
uchar code SMG_duanma[19] = 
  {0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,
  0x88,0x80,0xc6,0xc0,0x86,0x8e,
  0xbf,0x7f,0XFF};//分别是0-9(对应下标),A-F,“-”,“.”,“灭”
//分别是“0.-9.”
uchar code SMG_Dot_AC[10] = 
  {0X40,0X79,0X24,0X30,0X19,0X12,0X02,0X78,0X00,0X10};
//对应数码管8位位码
uchar yi,er,san,si,wu,liu,qi,ba;
//秒、分、时、日、月、周、年
uchar shijian[] = {0X50,0X59,0X23,0X00,0X00,0X00,0X00};
//闹钟
uchar naozhong[] = {0X00,0X00,0X00,0X00,0X00,0X00,0X00};
//DS1302写和读地址
uchar Write_DS1302_adrr[7] = {0X80, 0X82, 0X84, 0X86, 0X88, 0X8A, 0X8C};
uchar Read_DS1302_adrr[7] = {0X81, 0X83, 0X85, 0X87, 0X89, 0X8B, 0X8D};
//时钟显示与设置(0为显示状态、1为设置状态)
uchar Mode_shizhong = 0;
//判断是亮还是灭(0是亮,1是灭)
uchar Mode_light = 0;
//闹钟设置
uchar Mode_naozhong = 0;
uchar tt = 0;
uchar t = 0;
uchar miao = 0;
//在加减时,判断S4还是S5\S7按下,一般置0
uchar Key_S4_S5_S7_Flag = 0;
//在闹钟加减时
uchar Key_S4_S5_S6_Flag = 0;
//判断L1是亮还是灭(0是亮,1是灭)
uchar Mode_L1_light = 0;
//闹钟提示标志位
uchar Check_naozhong = 0;
//系统初始化
void Initsys();
//配置HC138
void SelectHC138(uchar channel);
//在pos位码上,显示value段码
void DisplaySMG_Bit(uchar pos, uchar value);
//数码管8位码显示
void SMG_Display();
//数码管的延时
void Delay_one_ms_SMG();
//独立按键(BTN)
void Alone_Key();
//按键消抖延时
void Delay_five_ms_Key();
//读出时间
void Read_DS1302();
//时间初始化
void Init_DS1302();
//时钟设置函数
void Setting_shizhong();
//中断初始化
void Timer0Init(void);
//闹钟设置函数
void Setting_naozhong();
void main()
{
  yi = er = san = si = wu = liu = qi = ba = 18;
  Init_DS1302();
  Initsys();
  Timer0Init();
  while(1)
  {
  Read_DS1302();
  Alone_Key();
  yi = shijian[0] / 16;
  er = shijian[0] % 16;
  san = 16;
  si = shijian[1] / 16;
  wu = shijian[1] % 16;
  liu = 16;
  qi = shijian[2] / 16;
  ba = shijian[2] % 16;
  SMG_Display();
  if(Mode_shizhong == 1)
  {
    Setting_shizhong();
  }
  if(Mode_naozhong == 1)
  {
    Setting_naozhong();
  }
  if(naozhong[0] == shijian[0] && naozhong[1] == shijian[1] && naozhong[2] == shijian[2])
  {
    Check_naozhong = 1;
    miao = 0;
  }
  if(Check_naozhong == 0)
  {
    SelectHC138(4);P0 = 0XFF;
  }
  }
}
//闹钟设置函数
void Setting_naozhong()
{
  //1
  while(1)
  {
  Key_S4_S5_S6_Flag = 0;
  Alone_Key();
  if(Mode_light == 0)yi = 18;
  else if(Mode_light == 1)yi = naozhong[0] / 16;;
  er = naozhong[0] % 16;
  san = 16;
  si = naozhong[1] / 16;
  wu = naozhong[1] % 16;
  liu = 16;
  qi = naozhong[2] / 16;
  ba = naozhong[2] % 16;
  SMG_Display();
  if(Key_S4_S5_S6_Flag == 5 && yi != 9 && yi != 18){naozhong[0] = naozhong[0] + 16;Key_S4_S5_S6_Flag = 0;}
  if(Key_S4_S5_S6_Flag == 4 && yi != 0 && yi != 18){naozhong[0] = naozhong[0] - 16;Key_S4_S5_S6_Flag = 0;}
  if(Key_S4_S5_S6_Flag == 6)break;
  }
  //2
  while(1)
  {
  Key_S4_S5_S6_Flag = 0;
  Alone_Key();
  if(Mode_light == 0)er = 18;
  else if(Mode_light == 1)er = naozhong[0] % 16;;
  yi = naozhong[0] / 16;
  san = 16;
  si = naozhong[1] / 16;
  wu = naozhong[1] % 16;
  liu = 16;
  qi = naozhong[2] / 16;
  ba = naozhong[2] % 16;
  SMG_Display();
  if(Key_S4_S5_S6_Flag == 5 && er != 9 && er != 18){naozhong[0] = naozhong[0] + 1;Key_S4_S5_S6_Flag = 0;}
  if(Key_S4_S5_S6_Flag == 4 && er != 0 && er != 18){naozhong[0] = naozhong[0] - 1;Key_S4_S5_S6_Flag = 0;}
  if(Key_S4_S5_S6_Flag == 6)break;
  }
  //4
  while(1)
  {
  Key_S4_S5_S6_Flag = 0;
  Alone_Key();
  if(Mode_light == 0)si = 18;
  else if(Mode_light == 1)si = naozhong[1] / 16;;
  yi = naozhong[0] / 16;
  er = naozhong[0] % 16;
  san = 16;
  wu = naozhong[1] % 16;
  liu = 16;
  qi = naozhong[2] / 16;
  ba = naozhong[2] % 16;
  SMG_Display();
  if(Key_S4_S5_S6_Flag == 5 && si != 9 && si != 18){naozhong[1] = naozhong[1] + 16;Key_S4_S5_S6_Flag = 0;}
  if(Key_S4_S5_S6_Flag == 4 && si != 0 && si != 18){naozhong[1] = naozhong[1] - 16;Key_S4_S5_S6_Flag = 0;}
  if(Key_S4_S5_S6_Flag == 6)break;
  }
  //5
  while(1)
  {
  Key_S4_S5_S6_Flag = 0;
  Alone_Key();
  if(Mode_light == 0)wu = 18;
  else if(Mode_light == 1)wu = naozhong[1] % 16;;
  yi = naozhong[0] / 16;
  er = naozhong[0] % 16;
  san = 16;
  si = naozhong[1] / 16;
  liu = 16;
  qi = naozhong[2] / 16;
  ba = naozhong[2] % 16;
  SMG_Display();
  if(Key_S4_S5_S6_Flag == 5 && wu != 9 && wu != 18){naozhong[1] = naozhong[1] + 1;Key_S4_S5_S6_Flag = 0;}
  if(Key_S4_S5_S6_Flag == 4 && wu != 0 && wu != 18){naozhong[1] = naozhong[1] - 1;Key_S4_S5_S6_Flag = 0;}
  if(Key_S4_S5_S6_Flag == 6)break;
  }
  //7
  while(1)
  {
  Key_S4_S5_S6_Flag = 0;
  Alone_Key();
  if(Mode_light == 0)qi = 18;
  else if(Mode_light == 1)qi = naozhong[2] / 16;;
  yi = naozhong[0] / 16;
  er = naozhong[0] % 16;
  san = 16;
  si = naozhong[1] / 16;
  wu = naozhong[1] % 16;
  liu = 16;
  ba = naozhong[2] % 16;
  SMG_Display();
  if(Key_S4_S5_S6_Flag == 5 && qi != 9 && qi != 18){naozhong[2] = naozhong[2] + 16;Key_S4_S5_S6_Flag = 0;}
  if(Key_S4_S5_S6_Flag == 4 && qi != 0 && qi != 18){naozhong[2] = naozhong[2] - 16;Key_S4_S5_S6_Flag = 0;}
  if(Key_S4_S5_S6_Flag == 6)break;
  }
  //8
  while(1)
  {
  Key_S4_S5_S6_Flag = 0;
  Alone_Key();
  if(Mode_light == 0)ba = 18;
  else if(Mode_light == 1)ba = naozhong[2] % 16;;
  yi = naozhong[0] / 16;
  er = naozhong[0] % 16;
  san = 16;
  si = naozhong[1] / 16;
  wu = naozhong[1] % 16;
  liu = 16;
  qi = naozhong[2] / 16;
  SMG_Display();
  if(Key_S4_S5_S6_Flag == 5 && ba != 9 && ba != 18){naozhong[2] = naozhong[2] + 1;Key_S4_S5_S6_Flag = 0;}
  if(Key_S4_S5_S6_Flag == 4 && ba != 0 && ba != 18){naozhong[2] = naozhong[2] - 1;Key_S4_S5_S6_Flag = 0;}
  if(Key_S4_S5_S6_Flag == 6)break;
  }
  Key_S4_S5_S6_Flag = 0;
  Mode_naozhong = 0;
}
//时钟设置函数
void Setting_shizhong()
{
  //1
  while(1)
  {
  Key_S4_S5_S7_Flag = 0;
  Alone_Key();
  if(Mode_light == 0)yi = 18;
  else if(Mode_light == 1)yi = shijian[0] / 16;;
  er = shijian[0] % 16;
  san = 16;
  si = shijian[1] / 16;
  wu = shijian[1] % 16;
  liu = 16;
  qi = shijian[2] / 16;
  ba = shijian[2] % 16;
  SMG_Display();
  if(Key_S4_S5_S7_Flag == 5 && yi != 9 && yi != 18){shijian[0] = shijian[0] + 16;Key_S4_S5_S7_Flag = 0;}
  if(Key_S4_S5_S7_Flag == 4 && yi != 0 && yi != 18){shijian[0] = shijian[0] - 16;Key_S4_S5_S7_Flag = 0;}
  if(Key_S4_S5_S7_Flag == 7)break;
  }
  //2
  while(1)
  {
  Key_S4_S5_S7_Flag = 0;
  Alone_Key();
  if(Mode_light == 0)er = 18;
  else if(Mode_light == 1)er = shijian[0] % 16;;
  yi = shijian[0] / 16;
  san = 16;
  si = shijian[1] / 16;
  wu = shijian[1] % 16;
  liu = 16;
  qi = shijian[2] / 16;
  ba = shijian[2] % 16;
  SMG_Display();
  if(Key_S4_S5_S7_Flag == 5 && er != 9 && er != 18){shijian[0] = shijian[0] + 1;Key_S4_S5_S7_Flag = 0;}
  if(Key_S4_S5_S7_Flag == 4 && er != 0 && er != 18){shijian[0] = shijian[0] - 1;Key_S4_S5_S7_Flag = 0;}
  if(Key_S4_S5_S7_Flag == 7)break;
  }
  //4
  while(1)
  {
  Key_S4_S5_S7_Flag = 0;
  Alone_Key();
  if(Mode_light == 0)si = 18;
  else if(Mode_light == 1)si = shijian[1] / 16;;
  yi = shijian[0] / 16;
  er = shijian[0] % 16;
  san = 16;
  wu = shijian[1] % 16;
  liu = 16;
  qi = shijian[2] / 16;
  ba = shijian[2] % 16;
  SMG_Display();
  if(Key_S4_S5_S7_Flag == 5 && si != 9 && si != 18){shijian[1] = shijian[1] + 16;Key_S4_S5_S7_Flag = 0;}
  if(Key_S4_S5_S7_Flag == 4 && si != 0 && si != 18){shijian[1] = shijian[1] - 16;Key_S4_S5_S7_Flag = 0;}
  if(Key_S4_S5_S7_Flag == 7)break;
  }
  //5
  while(1)
  {
  Key_S4_S5_S7_Flag = 0;
  Alone_Key();
  if(Mode_light == 0)wu = 18;
  else if(Mode_light == 1)wu = shijian[1] % 16;;
  yi = shijian[0] / 16;
  er = shijian[0] % 16;
  san = 16;
  si = shijian[1] / 16;
  liu = 16;
  qi = shijian[2] / 16;
  ba = shijian[2] % 16;
  SMG_Display();
  if(Key_S4_S5_S7_Flag == 5 && wu != 9 && wu != 18){shijian[1] = shijian[1] + 1;Key_S4_S5_S7_Flag = 0;}
  if(Key_S4_S5_S7_Flag == 4 && wu != 0 && wu != 18){shijian[1] = shijian[1] - 1;Key_S4_S5_S7_Flag = 0;}
  if(Key_S4_S5_S7_Flag == 7)break;
  }
  //7
  while(1)
  {
  Key_S4_S5_S7_Flag = 0;
  Alone_Key();
  if(Mode_light == 0)qi = 18;
  else if(Mode_light == 1)qi = shijian[2] / 16;;
  yi = shijian[0] / 16;
  er = shijian[0] % 16;
  san = 16;
  si = shijian[1] / 16;
  wu = shijian[1] % 16;
  liu = 16;
  ba = shijian[2] % 16;
  SMG_Display();
  if(Key_S4_S5_S7_Flag == 5 && qi != 9 && qi != 18){shijian[2] = shijian[2] + 16;Key_S4_S5_S7_Flag = 0;}
  if(Key_S4_S5_S7_Flag == 4 && qi != 0 && qi != 18){shijian[2] = shijian[2] - 16;Key_S4_S5_S7_Flag = 0;}
  if(Key_S4_S5_S7_Flag == 7)break;
  }
  //8
  while(1)
  {
  Key_S4_S5_S7_Flag = 0;
  Alone_Key();
  if(Mode_light == 0)ba = 18;
  else if(Mode_light == 1)ba = shijian[2] % 16;;
  yi = shijian[0] / 16;
  er = shijian[0] % 16;
  san = 16;
  si = shijian[1] / 16;
  wu = shijian[1] % 16;
  liu = 16;
  qi = shijian[2] / 16;
  SMG_Display();
  if(Key_S4_S5_S7_Flag == 5 && ba != 9 && ba != 18){shijian[2] = shijian[2] + 1;Key_S4_S5_S7_Flag = 0;}
  if(Key_S4_S5_S7_Flag == 4 && ba != 0 && ba != 18){shijian[2] = shijian[2] - 1;Key_S4_S5_S7_Flag = 0;}
  if(Key_S4_S5_S7_Flag == 7)break;
  }
  //情况按键标志位
  Key_S4_S5_S7_Flag = 0;
  //初始化时钟
  Init_DS1302();
  //变成显示模式
  Mode_shizhong = 0;
}
//按键消抖延时
void Delay_five_ms_Key()
{
  uint i,j;
  for(i = 0; i < 5; i++)
  for(j = 845; j > 0; j--);
}
//独立按键(BTN)
void Alone_Key()
{
  //S7按键
  if(P30 == 0)
  {
  Delay_five_ms_Key();
  if(P30 == 0)
  {
    Check_naozhong = 0;
    if(Mode_shizhong == 0 && Mode_naozhong != 1)Mode_shizhong = 1;
    else if(Mode_shizhong == 1)
    {
    Key_S4_S5_S7_Flag = 7;
    }
  }
  while(!P30);
  }
  //S6按键
  else if(P31 == 0)
  {
  Delay_five_ms_Key();
  if(P31 == 0)
  {
    Check_naozhong = 0;
    if(Mode_shizhong != 1)
    {
      Mode_naozhong = 1;
    Key_S4_S5_S6_Flag = 6;
    }
  }
  while(!P31);
  }
  //S5按键
  else if(P32 == 0)
  {
  Delay_five_ms_Key();
  if(P32 == 0)
  {
    Key_S4_S5_S7_Flag = 5;
    Key_S4_S5_S6_Flag = 5;
    Check_naozhong = 0;
  }
  while(!P32);
  }
  //S4按键
  else if(P33 == 0)
  {
  Delay_five_ms_Key();
  if(P33 == 0)
  {
    Key_S4_S5_S7_Flag = 4;
    Key_S4_S5_S6_Flag = 4;
    Check_naozhong = 0;
  }
  if(Mode_shizhong == 0)
  {
    while(!P33)
    {
    uchar temp;
    temp = Temper();
    yi = 18; er = 18; san = 18; si = 18; wu = 18;
    liu = temp / 10;
    qi = temp % 10;
    ba = 12;
    SMG_Display();
    }
   }
  else
  {
    while(!P33);
  }
  }
}
//配置HC138
void SelectHC138(uchar channel)
{
  switch(channel)
  {
  case 4:    //LED
    P2 = (P2 & 0X1F) | 0X80;
  break;
  case 5:    //蜂鸣器和继电器
    P2 = (P2 & 0X1F) | 0Xa0;
  break;
  case 6:    //位码
    P2 = (P2 & 0X1F) | 0Xc0;
  break;
  case 7:    //段码
    P2 = (P2 & 0X1F) | 0Xe0;
  break;
  case 0:    //锁住所有寄存器
    P2 = (P2 & 0X1F) | 0X00;
  break;
  }
}
//系统初始化
void Initsys()
{
  SelectHC138(5);
  P0 = 0X00;//关闭蜂鸣器和继电器
  SelectHC138(4);
  P0 = 0XFF;//关闭LED
  SelectHC138(6);
  P0 = 0XFF; //选择所有数码管
  SelectHC138(7);
  P0 = 0XFF; //关闭所有数码管
}
//在pos位码上,显示value段码
void DisplaySMG_Bit(uchar pos, uchar value)
{
  SelectHC138(6);
  P0 = 0X01 << pos;
  SelectHC138(7);
  P0 = value;
}
//数码管8位码显示
void SMG_Display()
{
  DisplaySMG_Bit(0, SMG_duanma[yi]);
  Delay_one_ms_SMG();
  DisplaySMG_Bit(1, SMG_duanma[er]);
  Delay_one_ms_SMG();
  DisplaySMG_Bit(2, SMG_duanma[san]);
  Delay_one_ms_SMG();
  DisplaySMG_Bit(3, SMG_duanma[si]);
  Delay_one_ms_SMG();
  DisplaySMG_Bit(4, SMG_duanma[wu]);
  Delay_one_ms_SMG();
  DisplaySMG_Bit(5, SMG_duanma[liu]);
  Delay_one_ms_SMG();
  DisplaySMG_Bit(6, SMG_duanma[qi]);
  Delay_one_ms_SMG();
  DisplaySMG_Bit(7, SMG_duanma[ba]);
  Delay_one_ms_SMG();
}
//数码管的延时
void Delay_one_ms_SMG()
{
  uint j;
  for(j = 845; j > 0; j--);
}
//时间初始化
void Init_DS1302()
{
  uchar i;
  Write_Ds1302(0X81, 0X00);
  for(i = 0; i < 7; i++)
  {
  Write_Ds1302(Write_DS1302_adrr[i], shijian[i]);
  }
}
//读出时间
void Read_DS1302()
{
  uchar i;
  for(i = 0; i < 7; i++)
  {
  shijian[i] = Read_Ds1302(Read_DS1302_adrr[i]);
  }
}
void Timer0Init(void)  //5毫秒@11.0592MHz
{
  AUXR |= 0x80;  //定时器时钟1T模式
  TMOD &= 0xF0;  //设置定时器模式
  TL0 = 0x00;  //设置定时初值
  TH0 = 0x28;  //设置定时初值
  TF0 = 0;  //清除TF0标志
  TR0 = 1;  //定时器0开始计时
  ET0 = 1;
  EA = 1;
}
void Timer0Server() interrupt 1
{
  tt++;
  t++;
  if(tt == 200)
  {
  if(Mode_light == 0)Mode_light = 1;
  else if(Mode_light == 1)Mode_light = 0;
  miao++;
  tt = 0;
  }
  if(miao == 5){Check_naozhong = 0;}
  if(Check_naozhong == 1 && t == 40)
  {
  SelectHC138(4);
  if(Mode_L1_light == 0){Mode_L1_light = 1;P0 = 0XFF;}
  else if(Mode_L1_light == 1){Mode_L1_light = 0;P0 = 0XFE;}
  t = 0;
  }
}


2.2 ds1302.c


/*
  程序说明: DS1302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 <reg52.h>
#include <intrins.h>
sbit SCK=P1^7;  
sbit SDA=P2^3;  
sbit RST = P1^3;   // DS1302复位            
void Write_Ds1302_Byte(unsigned  char temp) 
{
  unsigned char i;
  for (i=0;i<8;i++)      
  { 
  SCK=0;
  SDA=temp&0x01;
  temp>>=1; 
  SCK=1;
  }
}   
void Write_Ds1302( unsigned char address,unsigned char dat )     
{
  RST=0;
  _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
  SCK=0;
  _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
  RST=1;  
    _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
  Write_Ds1302_Byte(address); 
  Write_Ds1302_Byte(dat);  
  RST=0; 
}
unsigned char Read_Ds1302 ( unsigned char address )
{
  unsigned char i,temp=0x00;
  RST=0;
  _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
  SCK=0;
  _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
  RST=1;
  _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
  Write_Ds1302_Byte(address);
  for (i=0;i<8;i++)  
  {  
  SCK=0;
  temp>>=1; 
    if(SDA)
    temp|=0x80; 
    SCK=1;
  } 
  RST=0;
  _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
  RST=0;
  SCK=0;
  _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
  SCK=1;
  _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
  SDA=0;
  _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
  SDA=1;
  _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();
  return (temp);    
}


2.3 onewire.c


/*
  程序说明: 单总线驱动程序
  软件环境: Keil uVision 4.10 
  硬件环境: CT107单片机综合实训平台(外部晶振12MHz) STC89C52RC单片机
  日    期: 2011-8-9
*/
#include "reg52.h"
sbit DQ = P1^4;  //单总线接口
//单总线延时函数
void Delay_OneWire(unsigned int t)  //STC89C52RC
{
  while(t--);
}
//通过单总线向DS18B20写一个字节
void Write_DS18B20(unsigned char dat)
{
  unsigned char i;
  for(i=0;i<8;i++)
  {
  DQ = 0;
  DQ = dat&0x01;
  Delay_OneWire(50);
  DQ = 1;
  dat >>= 1;
  }
  Delay_OneWire(50);
}
//从DS18B20读取一个字节
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(50);
  }
  return dat;
}
//DS18B20设备初始化
bit init_ds18b20(void)
{
    bit initflag = 0;
    DQ = 1;
    Delay_OneWire(120);
    DQ = 0;
    Delay_OneWire(800);
    DQ = 1;
    Delay_OneWire(100); 
    initflag = DQ;     
    Delay_OneWire(50);
    return initflag;
}
unsigned char Temper()
{
  unsigned char di8,gao8,temp;
  init_ds18b20();
  Write_DS18B20(0xcc);
  Write_DS18B20(0x44);
  Delay_OneWire(200);
  init_ds18b20();
  Write_DS18B20(0xcc);
  Write_DS18B20(0xbe);
  di8=Read_DS18B20();
  gao8=Read_DS18B20();
  temp=gao8<<4; 
  temp=temp|(di8>>4);
  return temp;
}



对于DS1302写入时间时,怎么可以输入61产生0X61的效果

因为这样修改DS1302的初始化时,就很好重置了


解决:



         


dat如果是61,那么经过上式就变成0X61了


之后,我在写时,又决定改成16进制了,如果改变6的话,其实加上16就行了


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