51单片机红外解码LCD显示程序.doc

/*copyright 2007,ShangHai HaoTun Electronic Technology co.,Ltd * *This sample is used for control light by infrared . * *write by Shifang * *V1.1 */该程序使用LCD1602显示#include#include#include/#define TURE 1#define FALSE 0/sbit IR=P32;/红外接口标志sbit RS = P24;/Pin4sbit RW = P25; /Pin5sbit E = P26;/Pin6#define Data P0 /数据端口unsigned int hour,minute,second,count;char code Tab16=0123456789ABCDEF;char data TimeNum= ;char data Test1= ;/unsigned char irtime;/红外用全局变量bit irpro_ok,irok;unsigned char IRcord4;unsigned char irdata33;void ShowString (unsigned char line,char *ptr);/void Delay(unsigned char mS);void Ir_work(void);void Ircordpro(void);/void Delay(unsigned char mS)/delay mS unsigned char us,usn; while(mS!=0) usn = 4; while(usn!=0) us=0xf0; while (us!=0) us-; usn-; mS-; /* / / void tim0_isr (void) interrupt 1 using 1/定时器0中断服务函数 irtime+;/void ex0_isr (void) interrupt 0 using 0/外部中断0服务函数 static unsigned char i; static bit startflag; if(startflag) if(irtime=33)/引导码 TC9012的头码 i=0; irdatai=irtime; irtime=0; i+; if(i=33) irok=1; i=0; elseirtime=0;startflag=1;/void TIM0init(void)/定时器0初始化 TMOD=0x02;/定时器0工作方式2，TH0是重装值，TL0是初值 TH0=0x00;/reload value TL0=0x00;/initial value ET0=1;/开中断 TR0=1;/void EX0init(void) IT0 = 1; / Configure interrupt 0 for falling edge on /INT0 (P3.2) EX0 = 1; / Enable EX0 Interrupt EA = 1; /*/*/ void Ir_work(void)/红外键值散转程序 TimeNum5 = TabIRcord0/16; TimeNum6 = TabIRcord0%16; TimeNum8 = TabIRcord1/16; TimeNum9 = TabIRcord1%16; TimeNum11 = TabIRcord2/16; TimeNum12 = TabIRcord2%16; TimeNum14 = TabIRcord3/16; TimeNum15 = TabIRcord3%16; ShowString(1,TimeNum); irpro_ok=0; /*/void Ircordpro(void)/红外码值处理函数 unsigned char i, j, k; unsigned char cord,value; k=1; for(i=0;i4;i+)/处理4个字节 for(j=1;j7)/大于某值为1 value=value|0x80; else value=value; if(j1; k+; IRcordi=value; value=0; irpro_ok=1;/处理完毕标志位置1 /*/void DelayUs(unsigned char us)/delay us unsigned char uscnt; uscnt=us1;/* Crystal frequency in 12MHz*/ while(-uscnt);/*/void DelayMs(unsigned char ms)/delay Ms while(-ms) DelayUs(250); DelayUs(250); DelayUs(250); DelayUs(250); void WriteCommand(unsigned char c) DelayMs(5);/short delay before operation E=0; RS=0; RW=0; _nop_(); E=1; Data=c; E=0;/*/void WriteData(unsigned char c) DelayMs(5); /short delay before operation E=0; RS=1; RW=0; _nop_(); E=1; Data=c; E=0; RS=0;/*/void ShowChar(unsigned char pos,unsigned char c) unsigned char p; if (pos=0x10) p=pos+0xb0; /是第二行则命令代码高4位为0xc else p=pos+0x80; /是第二行则命令代码高4位为0x8 WriteCommand (p);/write command WriteData (c); /write data/*/void ShowString (unsigned char line,char *ptr) unsigned char l,i; l=line4; for (i=0;i16;i+) ShowChar (l+,*(ptr+i);/循环显示16个字符/*/void InitLcd() DelayMs(15); WriteCommand(0x38); /display mode WriteCommand(0x38); /display mode WriteCommand(0x38); /display mode WriteCommand(0x06); /显示光标移动位置 WriteCommand(0x0c); /显示开及光标设置 WriteCommand(0x01); /显示清屏/void main(void) EX0init(); / Enable Global Interrupt Flag TIM0init(); InitLcd();/ DelayMs(15); sprintf(Test1, );/the first line ShowString(0,Test1); sprintf(TimeNum,Code );/the second line ShowString(1,TimeNum); while(1)/主循环 if(irok) Ircordpro(); irok=0; if(irpro_ok)/step press key Ir_work();