单片机实现自行车里程表设计源码与PCB文件 -

#include "reg52.h"
#include "stdio.h"
#include "LCD12864.h"
#include "DS1302.h"
#define UpdataTimer(Timer) (Timer = Timer0Count) //刷新定时计数宏定义
sbit KEY_SET = P3^4; //设置键
sbit KEY_ADD = P3^5; //加一键
sbit KEY_DEC = P3^7; //减一键
sbit Speaker = P2^3; //蜂鸣器
uchar m_nIndexSet; //菜单选择项
uint m_Speed; //速度（0.1km/h）
uint m_Mileage; //总里程（0.1km）
uint m_RideSize; //骑行里程（米）
uchar m_RideTime[2]; //骑行时间（秒）
uchar Set_Speed; //预设速度（km/h） [0]
uint Set_Girth; //轮胎周长（毫米） [1,2]
uchar Set_DelayTime; //骑行停顿时间（秒）[3]
bit time500ms_flag; //0.5秒标志位
uint Timer0Count; //基准定时计数
uint Mileage_Buf[3]; //里程计算缓存，0：毫米；1：米；2：千米 [456789]
uint RideTimer;
uint SpeedTimeBuf[2];
void Sys_Init(void) //系统初始化
{
IT0 = 1; //set INT0 int type (1:Falling 0:Low level)
EX0 = 1; //enable INT0 interrupt
EA = 1;
m_nIndexSet = 0;
Timer0Count = 0;
m_Speed = 0;
m_RideSize = 0;
m_RideTime[0] = m_RideTime[1] = 0;
RideTimer = 0;
SpeedTimeBuf[0] = SpeedTimeBuf[1] = 10000;
Set_Speed = ds1302_read(ds1302_RAM0); //读参数
Set_Girth = ds1302_read(ds1302_RAM1); //读参数
Set_Girth <<= 8;
Set_Girth |= ds1302_read(ds1302_RAM2);
Set_DelayTime = ds1302_read(ds1302_RAM3); //读参数
Mileage_Buf[0] = ds1302_read(ds1302_RAM4); //读参数
Mileage_Buf[0] <<= 8;
Mileage_Buf[0] |= ds1302_read(ds1302_RAM5);
Mileage_Buf[1] = ds1302_read(ds1302_RAM6); //读参数
Mileage_Buf[1] <<= 8;
Mileage_Buf[1] |= ds1302_read(ds1302_RAM7);
Mileage_Buf[2] = ds1302_read(ds1302_RAM8); //读参数
Mileage_Buf[2] <<= 8;
Mileage_Buf[2] |= ds1302_read(ds1302_RAM9);
m_Mileage = Mileage_Buf[2]*10 + Mileage_Buf[1]/100; //0.1km
}
void Timer0Init(void) //50毫秒@11.0592MHz
{
TMOD &= 0xF0; //设置定时器模式
TMOD |= 0x01; //设置定时器模式
TL0 = 0x00; //设置定时初值
TH0 = 0x4C; //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 Timer1Init(void) //1毫秒@11.0592MHz
{
TMOD &= 0x0F; //设置定时器模式
TMOD |= 0x10; //设置定时器模式
TL1 = 0x66; //设置定时初值
TH1 = 0xFC; //设置定时初值
TF1 = 0; //清除TF1标志
TR1 = 1; //定时器1开始计时
ET1 = 1;
EA = 1;
}
uint CheckTimer(uint Timer) //定时计数值检测，返回与定时器0的差值
{
if(Timer0Count > Timer)
{
return(Timer0Count - Timer);
}
else
{
return ~(Timer - Timer0Count) + 1;
}
}
void On_GetTimeClock(void) //获取日历时钟0.5秒检测一遍
{
static uint GetTime=0;
uchar i=10;
if(CheckTimer(GetTime)>=10) //0.5秒退出设置菜单 10*50=500
{
UpdataTimer(GetTime); //更新时间计数
ds1302_gettime(); //获取时间
}
}
void On_DisplayRun(void) //液晶显示菜单
{
static uint ShowTime=0;
uchar i,k,str_buf[16];
uint dat;
if(CheckTimer(ShowTime)<=4) //0.2秒显示 4*50=200
{
return;
}
UpdataTimer(ShowTime); //更新时间计数
if(m_nIndexSet==0) //运行画面
{
str_buf[0] = '2'; str_buf[1] = '0'; //2018-02-26 15:14
str_buf[2] = Timer.Year/10 +'0';
str_buf[3] = Timer.Year%10 +'0';
str_buf[4] = '-';
str_buf[5] = Timer.Month/10 +'0';
str_buf[6] = Timer.Month%10 +'0';
str_buf[7] = '-';
str_buf[8] = Timer.Day/10 +'0';
str_buf[9] = Timer.Day%10 +'0';
str_buf[10] = ' ';
str_buf[11] = Timer.Hour/10 +'0';
str_buf[12] = Timer.Hour%10 +'0';
str_buf[13] = ':';
str_buf[14] = Timer.Minute/10 +'0';
str_buf[15] = Timer.Minute%10 +'0';
DisplayString(0,0, str_buf, 16);
memcpy(str_buf, "里程:****.*km ", 16); //总里程:****.*km
dat = m_Mileage/10;
for(i=0; i<4; i++)
{
str_buf[8-i] = dat%10 +'0';
dat /= 10;
}
str_buf[10] = m_Mileage%10 +'0';
k = 0;
while(1)
{
if(str_buf[5]!='0' || k>=3)
break;
else
{
for(i=5;i<=12;i++) str_buf[i] = str_buf[i+1];
}
k++;
}
DisplayString(0,1, str_buf, 16);
memcpy(str_buf, "速度: . km/h ", 16); //速度:**.*km/h 02.6km
str_buf[5] = (m_Speed/100)%10 +'0';
str_buf[6] = (m_Speed/10)%10 +'0';
str_buf[8] = m_Speed%10 +'0';
if(m_Speed<100)
{
for(i=5;i<=12;i++)
str_buf[i] = str_buf[i+1];
}
DisplayString(0,2, str_buf, 16);
if(m_RideSize<10000)
{
memcpy(str_buf, "骑行:****m 01:00", 16); //骑行:****m@01:00
dat = m_RideSize;
k = 8;
}
else
{
memcpy(str_buf, "骑行:***km 01:00", 16); //骑行:***km@01:00
dat = m_RideSize/1000;
k = 7;
}
for(i=k; i>=5; i--)
{
str_buf[i] = dat%10 +'0';
dat /= 10;
}
k=0;
while(1)
{
if(str_buf[5]!='0' || k>=3)
break;
else
{
for(i=5;i<=9;i++) str_buf[i] = str_buf[i+1];
}
k++;
}
str_buf[11] = m_RideTime[0]/10 +'0';
str_buf[12] = m_RideTime[0]%10 +'0';
str_buf[14] = m_RideTime[1]/10 +'0';
str_buf[15] = m_RideTime[1]%10 +'0';
DisplayString(0,3, str_buf, 16);
}
else //设置参数画面
{
memcpy(str_buf, "预设速度: km/h", 16); //预设速度: **km/h
if(m_nIndexSet!=1 || time500ms_flag==1) //=1
{
str_buf[10] = Set_Speed/10 +'0';
str_buf[11] = Set_Speed%10 +'0';
}
DisplayString(0,0, str_buf, 16);
memcpy(str_buf, "轮胎周长: mm ", 16); //轮胎周长: ****mm
if(m_nIndexSet!=2 || time500ms_flag==1) //=2
{
dat = Set_Girth;
for(i=12; i>=10; i--)
{
str_buf[i] = dat%10 +'0';
dat /= 10;
}
}
DisplayString(0,1, str_buf, 16);
memcpy(str_buf, "停顿时间: 秒 ", 16); //停顿时间: **秒
if(m_nIndexSet!=3 || time500ms_flag==1)
{
str_buf[10] = Set_DelayTime/10 +'0';
str_buf[11] = Set_DelayTime%10 +'0';
}
DisplayString(0,2, str_buf, 16);
memcpy(str_buf, "20 - - : ", 16); //2018-02-26 15:14
if(m_nIndexSet!=4 || time500ms_flag==1)
{
str_buf[2] = Timer.Year/10 +'0';
str_buf[3] = Timer.Year%10 +'0';
}
if(m_nIndexSet!=5 || time500ms_flag==1)
{
str_buf[5] = Timer.Month/10 +'0';
str_buf[6] = Timer.Month%10 +'0';
}
if(m_nIndexSet!=6 || time500ms_flag==1)
{
str_buf[8] = Timer.Day/10 +'0';
str_buf[9] = Timer.Day%10 +'0';
}
if(m_nIndexSet!=7 || time500ms_flag==1)
{
str_buf[11] = Timer.Hour/10 +'0';
str_buf[12] = Timer.Hour%10 +'0';
}
if(m_nIndexSet!=8 || time500ms_flag==1)
{
str_buf[14] = Timer.Minute/10 +'0';
str_buf[15] = Timer.Minute%10 +'0';
}
DisplayString(0,3, str_buf, 16);
}
}
void On_SetKey(void) //设置按键处理
{
if(KEY_SET==0)
{
Delay_ms(10); //去抖动
if(KEY_SET==0)
{
m_nIndexSet++;
if(m_nIndexSet>8)
m_nIndexSet = 0;
while(KEY_SET==0);
}
}
}
void On_AddDecKey(void) //加减按键处理
{
if(KEY_ADD==0)
{
Delay_ms(10); //去抖动
if(KEY_ADD==0)
{
if(m_nIndexSet==1)
{
Set_Speed++;
if(Set_Speed>99) Set_Speed=99;
ds1302_write(0x8e,0x00); //允许写操作
ds1302_write(ds1302_RAM0, Set_Speed); //写入1302
ds1302_write(0x8e,0x80); //写保护，禁止写操作
}
else if(m_nIndexSet==2)
{
Set_Girth++;
if(Set_Girth>999) Set_Girth=999;
ds1302_write(0x8e,0x00); //允许写操作
ds1302_write(ds1302_RAM1, Set_Girth/256); //写入1302
ds1302_write(ds1302_RAM2, Set_Girth%256); //写入1302
ds1302_write(0x8e,0x80); //写保护，禁止写操作
}
else if(m_nIndexSet==3)
{
Set_DelayTime++;
if(Set_DelayTime>99) Set_DelayTime=99;
ds1302_write(0x8e,0x00); //允许写操作
ds1302_write(ds1302_RAM3, Set_DelayTime); //写入1302
ds1302_write(0x8e,0x80); //写保护，禁止写操作
}
else //45678
{
ds1302_SetTime(m_nIndexSet-3, 1);
ds1302_SetTime(6, 1);
}
if(m_nIndexSet<=3)
{
Delay_ms(150);
}
else
{
while(KEY_ADD==0);
}
time500ms_flag = 1;
}
}
if(KEY_DEC==0)
{
Delay_ms(10);
if(KEY_DEC==0)
{
if(m_nIndexSet==1)
{
Set_Speed--;
if(Set_Speed>200) Set_Speed=0;
ds1302_write(0x8e,0x00); //允许写操作
ds1302_write(ds1302_RAM0,Set_Speed); //写入1302
ds1302_write(0x8e,0x80); //写保护，禁止写操作
}
else if(m_nIndexSet==2)
{
Set_Girth--;
if(Set_Girth>50000) Set_Girth=0;
ds1302_write(0x8e,0x00); //允许写操作
ds1302_write(ds1302_RAM1, Set_Girth/256); //写入1302
ds1302_write(ds1302_RAM2, Set_Girth%256); //写入1302
ds1302_write(0x8e,0x80); //写保护，禁止写操作
}
else if(m_nIndexSet==3)
{
Set_DelayTime--;
if(Set_DelayTime>200) Set_DelayTime=0;
ds1302_write(0x8e,0x00); //允许写操作
ds1302_write(ds1302_RAM3, Set_DelayTime); //写入1302
ds1302_write(0x8e,0x80); //写保护，禁止写操作
}
else
{
ds1302_SetTime(m_nIndexSet-3, 0);
ds1302_SetTime(6, 0);
}
if(m_nIndexSet<=3)
{
Delay_ms(150);
}
else
{
while(KEY_DEC==0);
}
time500ms_flag = 1;
}
}
}
void On_AutoQuitSet(void) //自动退出设置菜单
{
static uint KeyTime=0; //按键时间计时(秒)
if(KEY_SET==0 || KEY_ADD==0 || KEY_DEC==0) //有按键按下
{
UpdataTimer(KeyTime); //更新时间计数
}
if(CheckTimer(KeyTime)<=400) //20秒退出设置菜单 400*50 = 20000
{
return;
}
UpdataTimer(KeyTime); //更新时间计数
m_nIndexSet = 0; //运行模式
}
void On_SaveMileage(void) //存储里程
{
static uint m_buf[3]={0,0,0};
if(Mileage_Buf[2]>=6000)
{
Mileage_Buf[2] = 0;
Mileage_Buf[1] = 0;
Mileage_Buf[0] = 0;
}
if(m_buf[0]!=Mileage_Buf[0])
{
ds1302_write(0x8e,0x00); //允许写操作
ds1302_write(ds1302_RAM4, Mileage_Buf[0]/256); //写入1302
ds1302_write(ds1302_RAM5, Mileage_Buf[0]%256); //写入1302
ds1302_write(0x8e,0x80); //写保护，禁止写操作
m_buf[0] = Mileage_Buf[0];
}
if(m_buf[1]!=Mileage_Buf[1])
{
ds1302_write(0x8e,0x00); //允许写操作
ds1302_write(ds1302_RAM6, Mileage_Buf[1]/256); //写入1302
ds1302_write(ds1302_RAM7, Mileage_Buf[1]%256); //写入1302
ds1302_write(0x8e,0x80); //写保护，禁止写操作
m_buf[1] = Mileage_Buf[1];
}
if(m_buf[2]!=Mileage_Buf[2])
{
ds1302_write(0x8e,0x00); //允许写操作
ds1302_write(ds1302_RAM8, Mileage_Buf[2]/256); //写入1302
ds1302_write(ds1302_RAM9, Mileage_Buf[2]%256); //写入1302
ds1302_write(0x8e,0x80); //写保护，禁止写操作
m_buf[2] = Mileage_Buf[2];
}
m_Mileage = Mileage_Buf[2]*10 + Mileage_Buf[1]/100; //0.1km
}
void On_RideHandle(void) //骑行处理
{
uint buf;
buf = (Set_DelayTime*1000)/50; //10000/50=200
if(CheckTimer(RideTimer)>=buf)
{
UpdataTimer(RideTimer);
m_RideSize = 0;
m_RideTime[0] = m_RideTime[1] = 0;
}
}
void On_SpeedHandle(void) //骑行速度处理
{
static uint speed_timer=0;
static uint SpeedBuf[10]={0,0,0,0,0,0,0,0,0};
uchar i;
if(CheckTimer(speed_timer)>=4) //0.2秒到
{
UpdataTimer(speed_timer); //更新时间计数
for(i=0;i<9;i++) //软件滑动滤波算法
{
SpeedBuf[i] = SpeedBuf[i+1];
}
SpeedBuf[9] = Set_Girth*36;
SpeedBuf[9] /= SpeedTimeBuf[1];
if(SpeedBuf[9]>=999) SpeedBuf[9] = 999;
if(SpeedTimeBuf[0]>=500) //0.5s
SpeedBuf[9] = 0;
for(m_Speed=0,i=0;i<10;i++)
{
m_Speed += SpeedBuf[i];
}
m_Speed /= 10;
}
if((m_Speed/10)>=Set_Speed) //速度超速
Speaker = 0; //打开报警器
else
Speaker = 1; //关闭报警器
}
void main() //主函数
{
Timer0Init(); //50毫秒@11.0592MHz
Timer1Init(); //10毫秒@11.0592MHz
LCD12864_Init(); //液晶初始化
ds1302_Init(); //设置1302的初始时间
Sys_Init(); //系统初始化
while(1)
{
On_GetTimeClock(); //获取日历时钟0.5秒检测一遍
On_DisplayRun(); //液晶显示
On_AutoQuitSet(); //自动退出设置菜单
On_SaveMileage(); //存储里程
On_RideHandle(); //骑行处理
On_SpeedHandle(); //骑行速度处理
On_SetKey(); //设置按键处理
On_AddDecKey(); //加减按键处理
}
}
void EXINT0_Interrupt() interrupt 0 //外部中断0服务函数
{
Mileage_Buf[0] += Set_Girth; // 1256/1000 = 1 256
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