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#include <STC89C5xRC.H>
#include <intrins.h>
#define uchar unsigned char //無符路字符型宏定義變量范圍0~255
#define uint unsigned int //無符路整型宏定義變量范圍0~65535
sbit CS=P0^0; //tlc549片選
sbit CLK=P0^2; //tlc549時鐘
sbit DAT=P0^1; //tlc549數(shù)據(jù)
uchar bdata ADCdata;
sbit ADbit=ADCdata^0; //定義可為選址變量
uchar n,AD_DATA;
uchar temper[3]; //一次溫度存儲數(shù)組
uchar Data_start[]={0xFE,0X08,0x91,0x90,0xBB,0x37};
uchar Data_end[]={0xFF};
/*·····················1毫秒延時函數(shù)···························*/
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
/************************讀取溫度電壓函數(shù)*********************************/
uchar TLC549ADC(void)
{
uchar i;
CS=1;
CLK=0;
DAT=1;
CS=0;
for(i=0;i<8;i++)
{
CLK=1;
// Delay_MS(5);
_nop_(); _nop_();_nop_();
_nop_();
ADbit=DAT;
ADCdata<<=1; //AD轉(zhuǎn)換
CLK=0;
// Delay_MS(5);
_nop_(); _nop_();_nop_();
}
return (ADCdata);
}
/*························串口發(fā)送初始化函數(shù)·····················*/
void InitUART(void)
{
SCON=0x50; //串口工作方式1，8位UART，波特率可變
TH2=0xFF;
TL2=0xFD; //波特率:115200 晶振=11.0592MHz
RCAP2H=0xFF;
RCAP2L=0xFD; //16位自動再裝入值
TCLK=1;
RCLK=1;
C_T2=0;
EXEN2=0; //波特率發(fā)生器工作方式
/*****************/
TR2=1 ; //定時器2開始
ES=1;
EA=1;
}
/****************串行口1發(fā)送****************/
void UART_1SendOneByte(unsigned char c)
{
if(c=='\n') //如果遇到\n就換行
{
//發(fā)送CR(carriage return)
SBUF=0x0D;
while(!TI); //等待發(fā)送完成
TI=0;
//發(fā)送 LF(NL line feed,new line)
SBUF=0x0A;
while(!TI); //等待發(fā)送完成
TI=0;
}
else
{
SBUF=c;
while(!TI); //等待發(fā)送完成
TI=0;
}
}
/*·································溫度電壓值發(fā)送函數(shù)·························································*/
void send()
{ uchar n;
temper[0]=AD_DATA/100;
temper[1]=AD_DATA%100/10;
temper[2]=AD_DATA%100%10;
ES=0;
for(n=0;n<6;n++)
{
UART_1SendOneByte(Data_start[n]);
}
UART_1SendOneByte(temper[0]);
UART_1SendOneByte(temper[1]);
UART_1SendOneByte(temper[2]);
UART_1SendOneByte('
);
UART_1SendOneByte(0xFF);
ES=1;
}
/*································主函數(shù)··············································*/
void main()
{
InitUART(); //串行口初始化
while(1)
{
AD_DATA=TLC549ADC(); //讀取當(dāng)前電壓值A(chǔ)/D轉(zhuǎn)換數(shù)據(jù)
send(); //數(shù)據(jù)發(fā)送
for(n=10;n>0;n--) //10秒發(fā)送延時
{
delay(1000);
}
}
}
下面是主機(jī)部分程序。
#include <STC89C5xRC.H>
#include <intrins.h>
#define uchar unsigned char //無符路字符型宏定義變量范圍0~255
#define uint unsigned int //無符路整型宏定義變量范圍0~65535
sbit E=P2^5;
sbit RW=P2^6;
sbit RS=P2^7;
sbit key1=P1^1;
sbit key2=P1^2;
sbit beep=P1^3;
uchar code table[] ="C_temper: "; //當(dāng)前溫度顯示
uchar code table1[]="P_temper: "; //上一時刻溫度顯示
uchar temper[10],temper1[10]; //顯示溫度數(shù)據(jù)臨時存放
uchar num1=0,flag=0,dat[70]; //計(jì)數(shù)值，按鍵標(biāo)志位，歷史數(shù)據(jù)存儲數(shù)組
uint time,AD_value,flag2,rev; //每分鐘計(jì)數(shù)
uint temp1=0,temp2=0,count1=0;
uchar Receive_Buff1[12]; //接受數(shù)據(jù)緩存數(shù)組
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void key_scan()
{
if(key1==0)
{
delay(1);
if(key1==0)
{
num1++;
flag=1;
while(!key1);
}
}
if(key2==0)
{
delay(1);
if(key2==0)
{
num1=0;
flag=0;
while(!key2);
}
}
if(num1>100)
num1=0;
}
void wr_com(uchar com)
{
RS=0;
RW=0;
P0=com;
delay(5);
E=1;
delay(5);
E=0;
}
void wr_dat(uchar date)
{
RS=1;
P0=date;
delay(5);
E=1;
delay(5);
E=0;
}
void init()
{
E=0;
wr_com(0x38);
wr_com(0x0c);
wr_com(0x06);
wr_com(0x01);
}
void display(unsigned char *p)//顯示//
{
while(*p!='\0')
{
wr_dat(*p);
p++;
delay(1);
}
}
void init_play()//初始化顯示
{
wr_com(0x80);
display(table);
wr_com(0xc0);
display(table1);
}
/*························串口發(fā)送初始化函數(shù)·····················*/
void InitUART(void)
{
SCON=0x50; //串口工作方式1，8位UART，波特率可變
TH2=0xFF;
TL2=0xFD; //波特率:115200 晶振=11.0592MHz
RCAP2H=0xFF;
RCAP2L=0xFD; //16位自動再裝入值
TCLK=1;
RCLK=1;
C_T2=0;
EXEN2=0; //波特率發(fā)生器工作方式
/*****************/
TR2=1 ; //定時器2開始
ES=1;
EA=1;
}
void init_count()
{
TMOD=0x61;
TCON|=0X01;
TH0=(65536-9216)/256;
TL0=(65536-9216)%256;
EA=1;
ET0=1;
TR0=1;
}
void AD_to_temper()
{ uint i;
temp1=AD_value*100/25.6+32;//把熱電阻上的電壓值轉(zhuǎn)為溫度值，加補(bǔ)償
temper[0]=temp1/1000+0x30;
temper[1]=(temp1/100)%10+0x30;
temper[2]=(temp1%100)/10+0x30;
temper[3]='.';
temper[4]=(temp1%100)%10+0x30;
temper[5]='C';
if(flag==0)
{
temper1[0]=rev/1000+0x30;
temper1[1]=(rev/100)%10+0x30;
temper1[2]=(rev%100)/10+0x30;
temper1[3]='.';
temper1[4]=(rev%100)%10+0x30;
temper1[5]='C';
}
if(flag==1)
{
temper1[0]=dat[num1-1]/1000+0x30;
temper1[1]=(dat[num1-1]/100)%10+0x30;
temper1[2]=(dat[num1-1]%100)/10+0x30;
temper1[3]='.';
temper1[4]=(dat[num1-1]%100)%10+0x30;
temper1[5]='C';
}
for(i=0;i<6;i++)
{
wr_com(0xca+i);
wr_dat(temper1[ i]); [ i]
}
for(i=0;i<6;i++)
{
wr_com(0x8a+i);
wr_dat(temper[ i]); [ i]
temper1[ i]=temper[ i];[ i][ i]
}
}
/***************主函數(shù)*****************/
void main()
{
init();
init_play();//初始化顯示
InitUART(); //串行口初始化
init_count();//初始化定時器
while(1)
{
key_scan();
AD_to_temper();
if(time>=6000)
{
beep=0;
time=0;
temp2++;
dat[temp2]=temp1;
if(temp2>70)temp2=0;
}
}
}
/************串行口1中斷處理函數(shù)*************/
void UART_1Interrupt(void) interrupt 4
{
if(RI==1)
{
RI=0;
ES=0;
Receive_Buff1[count1++]=SBUF;
if(flag2==2&&SBUF==0xFF)
{
count1=0;
AD_value=Receive_Buff1[6]*100+Receive_Buff1[7]*10+Receive_Buff1[8];
rev=temp1;
}
if(SBUF=='
)
{
flag2=2;
}
ES=1;
}
}
void timer0_isr(void) interrupt 1
{
TH0=(65536-9216)/256;
TL0=(65536-9216)%256;
time++;
}

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