单片机BMP180无线胎压监测tpms系统设计源码 -

#include"reg52.h" //头文件
#include"Allhead.h"
#include <intrins.h>
#include "eeprom52.h"
sbit K1 = P3^2; //菜单
sbit K2 = P3^3; //加
sbit K3 = P3^4; //减
sbit Buzzer= P1^7; //控制端
unchar yemian=0;
unchar num=0;
unchar flag=0,a,b,c; //报警伐值
unchar SJqiya1,SJqiya2;//实际中所测的气压
unchar gaoya,diya; //gaoya代表气压上限，diya代表气压下限。
unchar lcdgaoya[5],lcddiya[5];
/******************把数据保存到单片机内部eeprom中******************/
void write_eeprom()
{
SectorErase(0x2000);
byte_write(0x2001, gaoya);
byte_write(0x2002, diya);
byte_write(0x2060, a_a);
}
/******************把数据从单片机内部eeprom中读出来*****************/
void read_eeprom()
{
gaoya = byte_read(0x2001);
diya = byte_read(0x2002);
a_a = byte_read(0x2060);
}
/**************开机自检eeprom初始化*****************/
void init_eeprom()
{
read_eeprom(); //先读
if(a_a != 2) //新的单片机初始单片机内问eeprom
{
gaoya = 98;
diya= 90;
a_a = 2;
write_eeprom();
}
}
void gaoyachuli() //气压显示上限
{
lcdgaoya[0]=gaoya/100+'0';
lcdgaoya[1]=gaoya%100/10+'0';
lcdgaoya[2]=gaoya%100%10+'0';
}
void diyachuli() //气压显示下限
{
lcddiya[0]=diya/100+'0';
lcddiya[1]=diya%100/10+'0';
lcddiya[2]=diya%100%10+'0';
}
void baojin() //报警装置
{
a=RevTempDate0[3]-48;
b=RevTempDate0[4]-48;
c=RevTempDate0[5]-48;
SJqiya1=a*100+b*10+c; //所测的实际气压1
a=RevTempDate1[3]-48;
b=RevTempDate1[4]-48;
c=RevTempDate1[5]-48;
SJqiya2=a*100+b*10+c; //所测的实际气压2
if( SJqiya1>=gaoya || SJqiya1<diya || SJqiya2>=gaoya || SJqiya2<diya )
{
Buzzer=0; // 报警
}
if( SJqiya1>=diya && SJqiya1<gaoya && SJqiya2>=diya && SJqiya2<gaoya)
{
Buzzer=1; //停止报警
}
}
void key() //按键程序选择菜单模式
{
if(!K1)
{
LCDDelay(20);
if(!K1)
{
while(!K1)
;
yemian++;
if(yemian>=3) { yemian=0; }
}
}
}
shezhi() //对里面的数值进行修改
{
if(!K2)
{
NRFDelay(120);
if(!K2)
{
// while(!K2)
;
if(yemian==1)
{
gaoya+=1;
if(gaoya>250) { gaoya=250; }
write_eeprom(); //保存数据
gaoyachuli(); //
LcdShow(1,4,lcdgaoya);
}
if(yemian==2)
{
diya+=1;
if(diya>250) { diya=250; }
write_eeprom(); //保存数据
diyachuli(); //显示
LcdShow(1,4,lcddiya);
}
}
}
if(!K3)
{
NRFDelay(120);
if(!K3)
{
// while(!K3)
;
if(yemian==1)
{
gaoya-=1;
if(gaoya<=1) { gaoya=1; }
write_eeprom(); //保存数据
gaoyachuli(); //
LcdShow(1,4,lcdgaoya);
}
if(yemian==2)
{
diya-=1;
if(diya<=1) { diya=1; }
write_eeprom(); //保存数据
diyachuli(); //显示
LcdShow(1,4,lcddiya);
}
}
}
}
/************************主函数********************/
void main()
{
LCDInt();
LcdShow(0,2," Welcome ");
NRFDelay(1000);//短暂延时
LcdShow(1,2," (Kpa) ");
NRFDelay(2000);//短暂延时
LCDInt(); //初始化
init_eeprom(); //读eeprom数据
NRF24L01Int(); //初始化
while(1)
{
key(); //按键扫描
//==================//进入工作状态=====================
if(yemian==0)
{
if(flag==0)
{
flag=1;
LCDInt();
LcdShow(0,0," Left Right ");
}
NRFSetRXMode();//设置为接收模式
num++;
if(num>=20) { num=0; GetDate(); } //开始接受数
baojin();
}
//==================//进入气压上限设置状态=====================
if(yemian==1) //进入设置模式
{
if(flag==1)
{
flag=2;
Buzzer=1;
LCDInt();
LcdShow(0,3," Pressure_H ");
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