大家可以参考一下
仿真原理图如下(proteus仿真工程文件可到本帖附件中下载)
单片机源程序如下:
- #include <reg52.h> //调用单片机头文件
- #define uchar unsigned char //无符号字符型 宏定义 变量范围0~255
- #define uint unsigned int //无符号整型 宏定义 变量范围0~65535
- uchar d_miao,d_fen = 0,d_shi;
- uchar flag_bai_hei; //白天的晚上的标志位
- uchar value;
- uint bai_3l_price = 60; //白天3千米内的单价 6元
- uint bai_3w_price = 18; //白天3千米外的单价/千米 1.8元
- uint bai_wait_price = 5; //白天等待时的单价/分钟 0.5元
- uint wan_3l_price = 70; //晚上3千米内的单价/千米 7元
- uint wan_3w_price = 22; //晚上3千米外的单价/千米 2.2元
- uint wan_wait_price = 10; //晚上等待时的单价/分钟 1元
- uint distance = 0; //行使的距离
- uint zong_jia; //总的价
- bit flag_200ms = 0;
- bit flag_1s ;
- bit flag_time_en = 0;
- uchar flag_time_xs = 1; //显示时间和等待时间切换
- uchar i;
- sbit clk = P2^0; //ds1302时钟线定义
- sbit io = P2^1; //数据线
- sbit rst = P2^2; //复位线
- //秒 分 时 日 月 年 星期
- uchar code write_add[]={0x80,0x82,0x84,0x86,0x88,0x8c,0x8a}; //写地址
- uchar code read_add[] ={0x81,0x83,0x85,0x87,0x89,0x8d,0x8b}; //读地址
- uchar code init_ds[] ={0x55,0x17,0x15,0x01,0x01,0x13,0x13};
- uchar idata miao,fen,shi,ri,yue,week,nian;
- #include "lcd1602.h"
- /***********************1ms延时函数*****************************/
- void delay_1ms(uint q)
- {
- uint i,j;
- for(i=0;i<q;i++)
- for(j=0;j<120;j++);
- }
- #include "iic.h"
- void write_iic_data()
- {
- write_24c02(0,flag_bai_hei);
- delay_1ms(10);
- write_24c02(1,bai_3l_price % 256); //保存数据
- delay_1ms(10);
- write_24c02(2,bai_3l_price / 256); //保存数据
- delay_1ms(10);
- write_24c02(3,bai_3w_price % 256); //保存数据
- delay_1ms(10);
- write_24c02(4,bai_3w_price / 256); //保存数据
- delay_1ms(10);
- write_24c02(5,bai_wait_price % 256); //保存数据
- delay_1ms(10);
- write_24c02(6,bai_wait_price / 256); //保存数据
- delay_1ms(10);
- write_24c02(7,wan_3l_price % 256); //保存数据
- delay_1ms(10);
- write_24c02(8,wan_3l_price / 256); //保存数据
- delay_1ms(10);
- write_24c02(9,wan_3w_price % 256); //保存数据
- delay_1ms(10);
- write_24c02(10,wan_3w_price / 256); //保存数据
- delay_1ms(10);
- write_24c02(11,wan_wait_price % 256); //保存数据
- delay_1ms(10);
- write_24c02(12,wan_wait_price / 256); //保存数据
- delay_1ms(10);
- }
- /****************自动初始化保存的数据*******************/
- void zidong_chud_shifa_iic()
- {
- static uchar value;
- // value = read_24c02(100);
- value = read_24c02(100);
- if(value != 47) //新的单片机初始单片机内问EEPOM
- {
- value = 47;
- bai_3l_price = 60; //白天3千米内的单价 6元
- bai_3w_price = 18; //白天3千米外的单价/千米 1.8元
- bai_wait_price = 5; //白天等待时的单价/分钟 0.5元
-
- wan_3l_price = 70; //晚上3千米内的单价/千米 7元
- wan_3w_price = 22; //晚上3千米外的单价/千米 2.2元
- wan_wait_price = 10; //晚上等待时的单价/分钟 1元
- write_iic_data();
- write_24c02(100,value); //保存数据
- }
- delay_1ms(500);
- }
- /****************读出来保存的数据**********************/
- void read_iic_data()
- {
- flag_bai_hei = read_24c02(0);
- bai_3l_price = read_24c02(2);
- bai_3l_price = bai_3l_price * 256 + read_24c02(1);
- bai_3w_price = read_24c02(4);
- bai_3w_price = bai_3w_price * 256 + read_24c02(3);
- bai_wait_price = read_24c02(6);
- bai_wait_price = bai_wait_price * 256 + read_24c02(5);
- wan_3l_price = read_24c02(8);
- wan_3l_price = wan_3l_price * 256 + read_24c02(7);
- wan_3w_price = read_24c02(10);
- wan_3w_price = wan_3w_price * 256 + read_24c02(9);
- wan_wait_price = read_24c02(12);
- wan_wait_price = wan_wait_price * 256 + read_24c02(11);
- }
- /****************独立按键处理函数************************/
- uchar key_can;
- //按键处理函数
- sbit Key1 = P3^4;//时间清零/确定
- sbit Key2 = P3^2;//减小
- sbit Key3 = P3^0;//路程增加
- sbit Key4 = P1^7;//增加
- sbit Key5 = P1^3;//设置
- sbit Key6 = P1^5;//路程清零
- //返回按键值
- //mode:0,不支持连续按;1,支持连续按;
- //0,没有任何按键按下
- //1,KEY0按下
- //2,KEY1按下
- //3,KEY2按下
- //4,KEY3按下 WK_UP
- //注意此函数有响应优先级,KEY0>KEY1>KEY2>KEY3!!
- //========================================================================
- // 函数: uchar Key_Scan()
- // 应用: temp=uchar Key_Scan();
- // 描述: 按键扫描并返回按下的键值
- // 参数: NONE
- // 返回: 按下的键值
- // 版本: VER1.0
- // 日期: 2015-05-29
- // 备注: 该函数带松手检测,按下键返回一次键值后返回0,直至第二次按键按下
- //========================================================================
- uchar Key_Scan()
- {
- static uchar key_up=1;//按键按松开标志
- if(key_up&&(Key1==0||Key2==0||Key3==0||Key4==0||Key5==0||Key6==0))
- {
- delay_1ms(10);//去抖动
- key_up=0;
- if(Key1==0) return 1;
- else if(Key2==0)return 2;
- else if(Key3==0)return 3;
- else if(Key4==0)return 4;
- else if(Key5==0)return 5;
- else if(Key6==0)return 6;
- }
- else if(Key1==1&&Key2==1&&Key3==1&&Key4==1&&Key5==1&&Key6==1)
- key_up=1;
- return 20;// 无按键按下
- }
- /*************写一个数据到对应的地址里***************/
- void write_ds1302(uchar add,uchar dat)
- {
- rst = 1; //把复位线拿高
- for(i=0;i<8;i++)
- { //低位在前
- clk = 0; //时钟线拿低开始写数据
- io = add & 0x01;
- add >>= 1; //把地址右移一位
- clk = 1; //时钟线拿高
- }
- for(i=0;i<8;i++)
- {
- clk = 0; //时钟线拿低开始写数据
- io = dat & 0x01;
- dat >>= 1; //把数据右移一位
- clk = 1; //时钟线拿高
- }
- rst = 0; //复位线合低
- clk = 0;
- io = 0;
- }
- /*************从对应的地址读一个数据出来***************/
- uchar read_ds1302(uchar add)
- {
- uchar value,i;
- rst = 1; //把复位线拿高
- for(i=0;i<8;i++)
- { //低位在前
- clk = 0; //时钟线拿低开始写数据
- io = add & 0x01;
- add >>= 1; //把地址右移一位
- clk = 1; //时钟线拿高
- }
- for(i=0;i<8;i++)
- {
- clk = 0; //时钟线拿低开始读数据
- value >>= 1;
- if(io == 1)
- value |= 0x80;
- clk = 1; //时钟线拿高
- }
- rst = 0; //复位线合低
- clk = 0;
- io = 0;
- return value; //返回读出来的数据
- }
- /*************把要的时间 年月日 都读出来***************/
- void read_time()
- {
- miao = read_ds1302(read_add[0]); //读秒
- fen = read_ds1302(read_add[1]); //读分
- shi = read_ds1302(read_add[2]); //读时
- ri = read_ds1302(read_add[3]); //读日
- yue = read_ds1302(read_add[4]); //读月
- nian = read_ds1302(read_add[5]); //读年
- week = read_ds1302(read_add[6]); //读星期
- }
- /*************把要写的时间 年月日 都写入ds1302里***************/
- void write_time()
- {
- write_ds1302(0x8e,0x00); //打开写保护
- write_ds1302(write_add[0],miao); //写秒
- write_ds1302(write_add[1],fen); //写分
- write_ds1302(write_add[2],shi); //写时
- write_ds1302(write_add[3],ri); //写日
- write_ds1302(write_add[4],yue); //写月
- write_ds1302(write_add[5],nian); //写星期
- write_ds1302(write_add[6],week); //写年
- write_ds1302(0x8e,0x80); //关闭写保护
- }
- /*************把数据保存到ds1302 RAM中**0-31*************/
- void write_ds1302ram(uchar add,uchar dat)
- {
- add <<= 1; //地址是从第二位开始的
- add &= 0xfe; //把最低位清零 是写的命令
- add |= 0xc0; //地址最高两位为 1
- write_ds1302(0x8e,0x00);
- write_ds1302(add,dat);
- write_ds1302(0x8e,0x80);
- }
- /*************把数据从ds1302 RAM读出来**0-31*************/
- uchar read_ds1302ram(uchar add)
- {
- add <<= 1; //地址是从第二位开始的
- add |= 0x01; //把最高位置1 是读命令
- add |= 0xc0; //地址最高两位为 1
- return(read_ds1302(add));
- }
- /**********************设置ds1302时间函数**********************/
- void set_ds1302time(uchar num,uchar *shi,uchar dat) //调时
- {
- if(num == 1)
- {
- *shi+=0x01;
- if((*shi & 0x0f) >= 0x0a)
- *shi = (*shi & 0xf0) + 0x10;
- if(*shi >= dat)
- *shi = 0;
- }
- else
- {
- if(*shi == 0x00)
- *shi = dat;
- if((*shi & 0x0f) == 0x00)
- *shi = (*shi | 0x0a) - 0x10;
- *shi -=0x01 ;
- }
- }
- /*************初始化ds1302时间***************/
- void init_ds1302()
- {
- uchar i;
- rst = 0; //第一次读写数据时要把IO品拿低
- clk = 0;
- io = 0;
- i = read_ds1302ram(30);
- if(i != 3)
- {
- i = 3;
- write_ds1302ram(30,i);
- write_ds1302(0x8e,0x00); //打开写保护
- for(i=0;i<7;i++)
- write_ds1302(write_add[i],init_ds[i]); //把最高位值0 允许ds1302工作
- write_ds1302(0x8e,0x80); //关写保护
- }
- read_time(); //读时间
- if(miao >= 0x60)
- {
- write_ds1302(0x8e,0x00); //打开写保护
- write_ds1302(write_add[0],init_ds[0]); //把最高位值0 允许ds1302工作
- write_ds1302(0x8e,0x80); //关写保护
-
- }
- }
- void init_ds1302_io()
- {
- rst = 0; //第一次读写数据时要把IO品拿低
- clk = 0;
- io = 0;
- }
- #include "menu.h"
- /*********************对应菜单内的处理函数******************/
- void menu_dis()
- {
- if(menu_1 == 0)
- {
- if(key_can == 3) //按键模拟加里程 每按一下加0.1KM
- {
- distance ++;
- if(flag_time_xs != 0)
- write_sfm4(1,0,distance); //显示里程
- }
- if(key_can == 6) //清零 从新计价
- {
- flag_time_en = 0;
- d_shi = 0;
- d_fen = 0;
- d_miao = 0;
- zong_jia = 0;
- distance = 0;
- }
- if(key_can == 1) //时间和等待的时间的切换
- {
- flag_time_xs ++; //为1显示当前时间
- if(flag_time_xs > 2)
- flag_time_xs = 0;
- if(flag_time_xs == 0) //显示时间
- {
- write_string(1,0," : : W: ");
- write_string(2,0," 20 - - ");
- }
- if(flag_time_xs == 1)//显示当前时间
- {
- init_1602_dis_csf();
- }
- if(flag_time_xs == 2)//显示等待时间
- {
- write_string(2,0," ");
- }
- }
- // write_sfm2(1,0,flag_time_xs);
- if(key_can == 2) //按键模拟控制停车计时
- {
- flag_time_en = ~flag_time_en;
- }
- if(flag_200ms == 1)
- {
- // flag_200ms = 0;
- if(distance <= 30)//3公里内的价格
- {
- if(flag_bai_hei == 0)
- {
- if(d_fen <= 3)
- zong_jia = bai_3l_price;
- else
- zong_jia = bai_3l_price + (d_shi * 60 + d_fen - 3) * bai_wait_price;
- }
- else
- {
- if(d_fen <= 3)
- zong_jia = wan_3l_price;
- else
- zong_jia = wan_3l_price + (d_shi * 60 + d_fen - 3) * wan_wait_price;
- }
-
- }else //3公里外的价格
- {
- if(flag_bai_hei == 0)
- {
- if(d_fen <= 3)
- zong_jia = bai_3l_price + bai_3w_price * (distance - 30) / 10 ;
- else
- zong_jia = bai_3l_price + bai_3w_price * (distance - 30) / 10 + (d_shi * 60 + d_fen - 3) * bai_wait_price;
- }
- else
- {
- if(d_fen <= 3)
- zong_jia = wan_3l_price + wan_3w_price * (distance - 30) / 10 ;
- else
- zong_jia = wan_3l_price + wan_3w_price * (distance - 30) / 10 + (d_shi * 60 + d_fen - 3) * wan_wait_price;
- }
- }
- if(flag_time_xs == 1) //显示当前的时间
- {
- write_sfm2_ds1302(2,0,shi); //显示时
- write_data(':');
- write_sfm2_ds1302(2,3,fen); //显示时
- write_data(':');
- write_sfm2_ds1302(2,6,miao); //显示秒
- write_sfm4(1,10,zong_jia);
- write_sfm4(1,0,distance);
- if(flag_bai_hei == 0)
- write_sfm2_dian(2,9,bai_3w_price);
- else
- write_sfm2_dian(2,9,wan_3w_price);
- write_zifu(1,15,0x5c); //¥
- write_zifu(2,12,0x5c); //¥
- }
- else if(flag_time_xs == 2) //显示等待时间
- {
- write_sfm2(2,1,d_fen); //显示分
- write_data(':');
- write_sfm2(2,4,d_miao); //显示秒
- write_sfm4(1,10,zong_jia);
- write_sfm4(1,0,distance);
- if(flag_bai_hei == 0)
- write_sfm2_dian(2,9,bai_3w_price); //显示白天每公里的价格
- else
- write_sfm2_dian(2,9,wan_3w_price); //显示晚上每公里的价格
- write_zifu(1,15,0x5c); //¥
- write_zifu(2,12,0x5c); //¥
- }
- else //显示当前的时间
- {
- write_sfm2_ds1302(1,2,shi); //显示时
- write_sfm2_ds1302(1,5,fen); //显示分
- write_sfm2_ds1302(1,8,miao); //显示秒
- write_sfm1(1,14,week); //显示星期
- write_sfm2_ds1302(2,3,nian); //显示年
- write_sfm2_ds1302(2,6,yue); //显示月
- write_sfm2_ds1302(2,9,ri); //显示日
-
- }
- }
- }
- }
- /*******************停车计时函数 *****************/
- void jishu_chashu()
- {
- if((flag_1s == 1) && (flag_time_en == 1))
- {
- flag_1s = 0;
- d_miao++; //秒钟加1
- if(d_miao >= 60)
- {
- d_miao = 0;
- d_fen ++; //分钟加1
- if(d_fen >= 60)
- {
- d_fen = 0;
- d_shi++;
- if(d_shi >= 24)
- {
- d_shi = 0;
- }
- }
- }
-
- }
- }
- /*************定时器0初始化程序***************/
- void time_init()
- {
- EA = 1; //开总中断
- TMOD = 0X01; //定时器0、工作方式1
- ET0 = 1; //开定时器0中断
- TR0 = 1; //允许定时器0定时
- }
- /******************主函数*******************/
- void main()
- {
- P0 = P1 = P2 = P3 = 0XFF; //让IO口全部输出高电平
- init_1602(); //初始化1602液晶
- init_1602_dis_csf(); //初始化1602液晶显示
- zidong_chud_shifa_iic();
- read_iic_data(); //把保存的数据读出来
- time_init(); //定时器初始化
- init_menu(); //菜单程序
- init_ds1302_io();
- init_ds1302(); //ds1302初始化
- while(1)
- {
- key_can=Key_Scan(); //按键程序
- menu_dis();
- if(key_can < 20)
- key_with();
- jishu_chashu(); //停车计时函数
- if(flag_200ms == 1)
- {
- flag_200ms = 0;
- if(menu_1 == 0)
- read_time(); //读时间
- if((shi >= 0x22) || (shi <= 8))
- flag_bai_hei = 1; //晚上模式
- else
- flag_bai_hei = 0; //白天模式
- }
- }
- }
- /*************定时器0中断服务程序***************/
- void time0_int() interrupt 1
- {
- static uchar value;
- TH0 = 0x3c;
- TL0 = 0xb0; // 50ms
- value ++;
- if(value % 4 == 0)
- flag_200ms = 1;
- if(value >= 20)
- {
- flag_1s = 1;
- value = 0;
- }
- }
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