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#include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit lcden = P2^7;
sbit lcdrs = P2^6;
sbit lcdwr = P2^5;
sbit IR = P3^2;
uchar IRCOM[6];//數(shù)組，用于存儲(chǔ)紅外編碼
uchar code table1[] = "remote control";
uchar code table2[] = "CODE:";
void delayms(uchar x)// 延時(shí)x*0.14ms
{
uchar i;
while(x--)
for(i=0;i<13;i++){}
}
void delay(uchar x) //延時(shí)xms
{
uchar i,j;
for(i=x;i>0;i--)
for(j=110;j>0;j--);
}
/****************************LCD部分***********************************************/
void write_com(uchar com)
{
lcden = 0;
lcdrs = 0;
lcdwr = 0;
P0 = com;
delay(5);
lcden = 1;
delay(5);
lcden = 0; //別忘了lcden拉低
}
void write_date(uchar date)
{
lcden = 0;
lcdrs = 1;
lcdwr = 0;
P0 = date;
delay(5);
lcden = 1;
delay(5);
lcden = 0;
}
void lcd_init(void)
{
lcden = 0;
lcdrs = 0;
lcdwr = 0;
delay(5);
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
}
/*****************main()************************/
void main(void)
{
uchar count=0;
IR = 1;
lcd_init();
write_com(0x80);
while(table1[count]!='\0')
{
write_date(table1[count]);
count++;
delay(5);
}
count = 0;
write_com(0x80+0x40);
while(table2[count]!='\0')
{
write_date(table2[count]);
count++;
delay(5);
}
IE = 0x81; //開(kāi)中斷
TCON = 0x01;//脈沖負(fù)邊沿觸發(fā)
while(1);
}
/*********************紅外中斷**************************/
void IR_time() interrupt 0
{
uchar i,j,TimeNum=0;//TimeNum用來(lái)計(jì)IR高電平次數(shù) 從而判斷是0還是1
EX0 = 0; //關(guān)閉中斷
delayms(5);
if(1 == IR)
{
EX0 = 1;
return;
}
while(!IR) //跳過(guò)9ms前導(dǎo)低電平
delayms(1);
for(i=0;i<4;i++)
{
for(j=0;j<8;j++)
{
while(IR) //跳過(guò)4.5ms的前導(dǎo)高電平
delayms(1);
while(!IR) //跳過(guò)0.56ms的低電平
delayms(1);
while(IR)
{
TimeNum++; //計(jì)時(shí)高電平時(shí)間從而判斷讀取的是0還是1
delayms(1);
}
if(TimeNum>=30)//按鍵按下時(shí)間過(guò)長(zhǎng) 跳過(guò)
{
EX0 = 1;
return;
}
IRCOM[i] = IRCOM[i]>>1;
if(TimeNum >= 8) //8*0.14ms 這時(shí)讀取的是1；
{
IRCOM[i] = IRCOM[i]|0x80;
}
TimeNum = 0;
}
}
if(IRCOM[2]!=~IRCOM[3])//判斷八位數(shù)據(jù)和八位數(shù)據(jù)反碼是否相等
{
EX0 = 1;
return;
}
IRCOM[4] = IRCOM[2]&0x0f;//取低四位
IRCOM[5] = IRCOM[2]>>4; //IRCOM[5]取IRCOM[2]高四位
if(IRCOM[4] > 9) //轉(zhuǎn)換成字符
{
IRCOM[4] = IRCOM[4] + 0x37;
}
else
IRCOM[4] = IRCOM[4] + 0x30;
if(IRCOM[5] > 9)
{
IRCOM[5] = IRCOM[5] + 0x37;
}
else
IRCOM[5] = IRCOM[5] + 0x30;
delay(5);
write_com(0x80 + 0x40 + 5);
write_date(IRCOM[5]);
write_date(IRCOM[4]);
EX0 = 1; //重新開(kāi)啟外部中斷
}
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