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上传时间: 2011-02-10
详细说明： //程序员QQ 646570027 //时间 2010 12 20 //作用 红外发射与接收一体 万能遥控解码 #include"reg52.h" #define uchar unsigned char #define uint unsigned int //定时器寄存器设置 #define THO_int0 0xfa #define TLO_int0 0x8d #define TH1_int1 0xff #define TL1_int1 177 sbit LED1=P2^1; sbit LED2=P2^2; sbit LED3=P2^3; sbit LED4=P2^0; sbit Beep=P3^7; sbit KEY1=P1^4; sbit KEY2=P1^5; sbit KEY3=P1^6; sbit KEY4=P1^7; sbit infrared = P3^3; sbit infr_send = P3^4; sbit tiaoshi = P3^6; //表格存于ROM************************************* uchar c ode dsp_tap[16]={0xa0,0xbb,0x62,0x2a,0x39,0x2c,0x24,0xba,0x20,0x28,0x30,0x25,0xe4,0x23,0x64,0x74}; uchar code dsp_cs[4]={0x70,0xd0,0xb0,0xe0}; //uchar code dat_tap[13]={0,31,28,31,30,31,30,31,31,30,31,30,31}; //uchar code dat_tap2[13]={0,31,29,31,30,31,30,31,31,30,31,30,31}; //变量定义存于RAM********************************** uchar SimpleKeyState = 0; //简单按键的状态 uchar SimpleKeyPressDelay = 7; //简单按键按实的大概时间,单位:10毫秒 uchar SimpleKeyCode = 0xFF; //简单按键键码 uchar infr_key1_data[4] = {0}; uint infr_send_cont = 0; uchar infrared_new_data[4] = {0}; uchar infrared_old_data[4] = {0x80,0xff,0xc8,0x37}; uchar infrared_byte = 0; uchar infrared_byte_cont = 0; uchar infrared_old_state = 0; uchar infrared_new_state = 0; uint infrared_cont = 0; uint infrared_cont_now = 0; uchar flg_infrared = 0; uchar flg_infrared_ok = 0; uchar seg_step = 0; uchar dsp_step; uchar cont_4ms; uint cont_1s; uchar cont_500ms; uchar cont_10ms; uchar sec; uchar beef_delay; uchar dis_play[4] = {0}; uint dis_num = 0; uchar flg_display = 0; uchar flg_change = 0; uchar flg_send_start = 0; uchar aaa[8] = {0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01}; uchar flg_key = 0; void writ_send(uint tin) { uchar j; uint i; for(i=0;i 0) SimpleKeyPressDelay--; if( (SimpleKeyState == 0) && ((KEY1 ==0) || (KEY2 ==0) || (KEY3 ==0) || (KEY4 ==0)) ) //某个按钮被按下 { SimpleKeyState = 1; SimpleKeyPressDelay = 7; //从接触按键到把按键按下所需要的大概时间:70毫秒 } if(SimpleKeyState == 1) { if(SimpleKeyPressDelay == 0) //按键按实 { // Beep = 0; SimpleKeyState = 2; if(KEY1 ==0) { SimpleKeyCode = 1; } else if(KEY2 ==0) { SimpleKeyCode = 2; } else if(KEY3 ==0) { SimpleKeyCode = 3; } else if(KEY4 ==0) { SimpleKeyCode = 4; } SimpleKeyAction();//按键处理 } } if(SimpleKeyState == 2) { if( (KEY1 == 1) && (KEY2 == 1) && (KEY3 == 1) && (KEY4 == 1) ) //所有的按键松开 { SimpleKeyPressDelay = 7; //松开按键所需要的大概时间:70毫秒 SimpleKeyState = 3; } } if(SimpleKeyState == 3) { if(SimpleKeyPressDelay == 0) //已松开按键 { SimpleKeyState = 0; SimpleKeyCode = 0xFF; } } } //****************************************************************** void T0_int(void) { //定时器0初始化设置 TR0 = 1; TH0=THO_int0; TL0=TLO_int0; ET0=1; EA=1; } //********************************************************************* void MCU_init(void) { P1=0xff; P2=0xff; P3=0xff; T0_int(); // Beep = 0; } //******************************************************************* void timer0_(void)interrupt 1 // 定时器溢出周期为100us { TR0=0; TH0=THO_int0; TL0=TLO_int0; TR0=1; // tiaoshi =~ tiaoshi; if(flg_send_start == 0) { //红外接收代码 P3=(P3|0x08); //把红外管脚的电平设为1 infrared_old_state = infrared_new_state; //保留上一次的电平 infrared_new_state = (P3&0x08); //读取现在的管脚电平值 if(infrared_new_state == infrared_old_state) infrared_cont++; //如果两次的电平相同 变量infrared_cont 自加1 else if((P3&0x08) == 0x00) //如果两次的电平不相同 且 该管脚的电平为低电平 { infrared_cont_now = infrared_cont; //保留infrared_cont的值 infrared_cont = 0; //变量清零 if(flg_infrared == 1) { if((infrared_cont_now >= 6)&&(infrared_cont_now <= 25)) //如果变量值在6到15这个范围之内 { if(infrared_cont_now <= 14) //小于的话 设置为0 { infrared_new_data[infrared_byte] = infrared_new_data[infrared_byte]<<1; infrared_new_data[infrared_byte] = (infrared_new_data[infrared_byte]&0xfe); infrared_byte_cont++; } else //大于的话 设置为1 { infrared_new_data[infrared_byte] = infrared_new_data[infrared_byte]<<1; infrared_new_data[infrared_byte] = (infrared_new_data[infrared_byte]|0x01); infrared_byte_cont++; } if(infrared_byte_cont == 8) //当存储玩8位数据infrared_new_data[0]之后，再存储infrared_new_data[1] { infrared_byte++; infrared_byte_cont = 0; if(infrared_byte == 4) //当存储完32位数据之后 { infrared_byte = 0; flg_infrared = 0; //标志位清零 infrared_old_data[0] = infrared_new_data[0]; //保留数据 infrared_old_data[1] = infrared_new_data[1]; infrared_old_data[2] = infrared_new_data[2]; infrared_old_data[3] = infrared_new_data[3]; flg_infrared_ok = 1; } } }else flg_infrared = 0; }else { if((infrared_cont_now >= 80)&&(infrared_cont_now <= 150)) //头吗解读 { flg_infrared = 1; //标志位置1 infrared_byte = 0; //变量清零 infrared_byte_cont = 0; }else flg_infrared = 0; } } } cont_4ms++; if(cont_4ms >= 40) { cont_4ms=0; flg_display = 1; //蜂鸣器控制**************************** if(Beep == 0) { beef_delay++; if(beef_delay > 10) Beep = 1; }else beef_delay = 0; //************************************** } cont_1s++; if(cont_1s>=10000) { cont_1s=0; // dis_num++; flg_change =~ flg_change; } } void main(void) { MCU_init(); tiaoshi = 0; for(;;) { SimpleKeyScan(); if(flg_infrared_ok == 1) { flg_infrared_ok = 0; LED4 =~ LED4; Beep = 0; } if(flg_display) { flg_display = 0; P2 = (P2&0x0f); if(flg_change) { dis_play[3] = dsp_tap[infrared_old_data[2]%256/16]; dis_play[2] = dsp_tap[infrared_old_data[2]%16]; dis_play[1] = dsp_tap[infrared_old_data[3]%256/16]; dis_play[0] = dsp_tap[infrared_old_data[3]%16]; }else { dis_play[3] = dsp_tap[infrared_old_data[0]%256/16]; dis_play[2] = dsp_tap[infrared_old_data[0]%16]; dis_play[1] = dsp_tap[infrared_old_data[1]%256/16]; dis_play[0] = dsp_tap[infrared_old_data[1]%16]; } P0 = dis_play[seg_step]; P2 = (P2|dsp_cs[seg_step]); seg_step++; if(seg_step>=4)seg_step = 0; } } } void EXT0_INT(void) interrupt 0 {;} void EXT1_INT(void) interrupt 2 {;} void timer1_(void) interrupt 3 {;} void serial_(void) interrupt 4 {;} ...展开收缩
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