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#include <stc12c5a.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit E=P2^2; //1602使能引腳
sbit RW=P2^1; //1602讀寫引腳
sbit RS=P2^0; //1602數(shù)據(jù)/命令選擇引腳
uchar table[24]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
uchar wind_direction[8]={0x01,0x03,0x00,0x00,0x00,0x02,0xC4,0x0B};//風(fēng)向傳感器問詢幀
uchar wind_direction1;//單片機(jī)接收風(fēng)向數(shù)據(jù)
uchar strwind[3];
uchar num=0;
void delay(uint z)//延時(shí)函數(shù)
{
uint x,y;
for(x=z;x>0;x--);
for(y=110;y>0;y--);
}
void wcmd(uchar del)//寫命令函數(shù)
{
RS=0;//命令選擇端
delay(10);
RW=0;//寫命令
delay(10);
P0=del; //把命令字寫入
delay(10);
E=1;//使能
delay(10);
E=0;
}
void lcd1602_writedata(uchar dat)//寫數(shù)據(jù)函數(shù)
{
delay(10);
RS=1;//數(shù)據(jù)選擇端
delay(10);
RW=0;//寫命令
delay(10);
P0=dat; //把要顯示的數(shù)據(jù)寫入
delay(10);
E=1;
delay(10);
E=0;
}
void lcd1602_init()//LCD初始化
{
wcmd(0x38);
wcmd(0x0C);
wcmd(0x06);
wcmd(0x01);
}
void init() //系統(tǒng)初始化
{
TMOD |=0X20;//定時(shí)器T1，方式2，波特率由PCON寄存器的SMOD決定
SCON=0x50; //REN RI TI，RI為0，TI為0
//串行口1方式1 SCON是串行口1的串行控制寄存器，REN為1，允許接收
PCON=0x00;//各工作方式波特率加倍
TH1=0xfD;//9600bps@11.0592
TL1=0xfD;
TR1=1; //定時(shí)器1中斷打開
EA=1;//cpu總中斷允許位，1為開放中斷
ES=1;// 1允許串行口中斷
}
void main()
{
uchar m=0;
init();
while(1)
{
int i;
for(i=0;i<8;i++)
{
SBUF=wind_direction[i];//風(fēng)向數(shù)據(jù)
while(TI==0);
{
} //數(shù)據(jù)發(fā)送結(jié)束時(shí)TI自動(dòng)置1
TI=0;
}
delay(1000);
strwind[0]=(wind_direction1/100%10)+'0';
strwind[1]=(wind_direction1/10%10)+'0';
strwind[2]=(wind_direction1%10)+'0';
lcd1602_init();
delay(1000);
wcmd(0x80);
delay(1000);
for(m=0;m<2;m++)
{
lcd1602_writedata(strwind[m]);
}
delay(5000);
}
}
void UART_1() interrupt 4
{
//接收完緩沖數(shù)據(jù)后RI置1
if(RI)//如果RI為1，即如果收到
{
RI=0; //RI置0
if(num==0)
{
if(SBUF==0x01)
{
table[num++] = SBUF;
}
}
else
{
table[num++]=SBUF;//風(fēng)向數(shù)據(jù)
if(num>8)
{
num=0;
wind_direction1=table[6];//風(fēng)向數(shù)據(jù)給wind_direction1[0]
}
}
}
}

復(fù)制代碼

#include <STC12C5A60S2.H>
#define uchar unsigned char
#define uint unsigned int
sbit E=P2^2; //1602使能引腳
sbit RW=P2^1; //1602讀寫引腳
sbit RS=P2^0; //1602數(shù)據(jù)/命令選擇引腳
uchar table1[]="Wind Direction ";
uchar table2[]="The Angle: ";
uchar wind_direction[8]={0x01,0x03,0x00,0x00,0x00,0x02,0xC4,0x0B};//風(fēng)向傳感器問詢幀
uchar rec_buf[9];
uchar strwind[]={'0','0','0',0xdf,' '};
uchar error[]="Error";
uint wind_direction1;//單片機(jī)接收風(fēng)向數(shù)據(jù)
uint temp;
uchar num=0;
bit flag=0;
bit sign=1;
uint Angle;
void delay(uint z)//延時(shí)函數(shù)
{
uint x,y;
for(x=z;x>0;x--);
for(y=110;y>0;y--);
}
void wcmd(uchar del)//寫命令函數(shù)
{
RS=0;//命令選擇端
RW=0;//寫命令
P0=del; //把命令字寫入
delay(1);
E=1;//使能
delay(1);
E=0;
}
void lcd1602_writedata(uchar dat)//寫數(shù)據(jù)函數(shù)
{
RS=1;//數(shù)據(jù)選擇端
RW=0;//寫命令
P0=dat; //把要顯示的數(shù)據(jù)寫入
delay(1);
E=1;
delay(1);
E=0;
}
void lcd1602_init()//LCD初始化
{
wcmd(0x38);
wcmd(0x0C);
wcmd(0x06);
wcmd(0x01);
}
void init() //系統(tǒng)初始化
{
TMOD |=0X20;//定時(shí)器T1，方式2，波特率由PCON寄存器的SMOD決定
SCON=0x50; //REN RI TI，RI為0，TI為0
//串行口1方式1 SCON是串行口1的串行控制寄存器，REN為1，允許接收
PCON=0x00;//各工作方式波特率加倍
TH1=0xfD;//9600bps@11.0592
TL1=0xfD;
TR1=1; //定時(shí)器1中斷打開
EA=1;//cpu總中斷允許位，1為開放中斷
ES=1;// 1允許串行口中斷
}
void main()
{
uchar i;
init();
lcd1602_init();
wcmd(0x81);//第一行
for(i=0;i<14;i++)
lcd1602_writedata(table1[i]);
wcmd(0xc1);//第二行
for(i=0;i<15;i++)
lcd1602_writedata(table2[i]);
while(1)
{
EA=0;//關(guān)中斷
for(i=0;i<8;i++)//問詢
{
SBUF=wind_direction[i];//風(fēng)向數(shù)據(jù)
while(!TI);//數(shù)據(jù)發(fā)送結(jié)束時(shí)TI自動(dòng)置1
TI=0;
}
EA=1;//開中斷
delay(1000);//等待1秒
if(flag==1)
{
flag=0;
temp=rec_buf[8]<<8|rec_buf[7];//提取驗(yàn)證碼
if(temp==0xc8db)//驗(yàn)證正確
{
sign=1;
wind_direction1=rec_buf[5]<<8|rec_buf[6];
strwind[0]=(wind_direction1/100%10)+'0';
strwind[1]=(wind_direction1/10%10)+'0';
strwind[2]=(wind_direction1%10)+'0';
}
else//錯(cuò)誤，清除緩存
{
sign=0;
for(i=0;i<9;i++)
rec_buf[i]=0;
}
}
wcmd(0xc0+11);//字符顯示起始位置
if(sign)
{
for(i=0;i<5;i++)
lcd1602_writedata(strwind[i]);//顯示風(fēng)向角度數(shù)據(jù)
}
else
{
for(i=0;i<5;i++)
lcd1602_writedata(error[i]);//顯示錯(cuò)誤字符
}
}
}
void UART_1() interrupt 4
{
RI=0; //RI置0
rec_buf[num] = SBUF;
if(rec_buf[0]==0x01)//驗(yàn)證數(shù)據(jù)頭，正確繼續(xù)接收，錯(cuò)誤被后續(xù)數(shù)據(jù)覆蓋
{
num++;
if(num>=9) //幀長(zhǎng)度
{
flag=1; //幀接收完成標(biāo)志置1
num=0; //計(jì)數(shù)變量清0
}
}
}
//01 03 04 00 02 00 5a db c8

復(fù)制代碼

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