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        红外解码lcd1602显示的(Infrared decoding, LCD1602 display)
       
 
       
        红外解码lcd1602显示的(Infrared decoding, LCD1602 display) Give you a program, infrared decoding, LCD1602 display Answer: leave the mailbox six | 2010-12-21 dream Qingyang | 23:11 / / example 97: infrared remote control relay #includereg51.h / / register header file contains the microcontroller Sbit IR=P3^2; / / IR will be defined as the P3.2 pin Unsigned char a[4]; / / store user code, users and key data complement codes and key data complement Unsigned int LowTime, HighTime; / / storage of high and low level width Sbit Relay=P1^3; / / Relay will be defined as the P1.3 pin /************************************************************ Function function: decodes 4 bytes of user code and key data code Explanation: decode correctly, return 1, otherwise return 0 Export parameter: DAT *************************************************************/ Bit DeCode (void) { Unsigned, char, I, j; Unsigned char temp; / / decoded data storage For (i=0; i4; / / i++) continuous read 4 user code and key code data { For (j=0; j8; / / j++) each have 8 digit code { Temp=temp1; each bit of data in the //temp moves to the right bit, because the high data is read first TH0=0; / / timer 0 TL0=0; / / timer 0 TR0=1; / / open T0 timer While (IR==0) / / if is low wait for Low level; / / timing TR0=0; / / shutdown timer T0 LowTime=TH0*256+TL0; / / keep low level width TH0=0; / / timer 0 TL0=0; / / timer 0 TR0=1; / / open T0 timer While (IR==1) / / if is high wait for ; TR0=0; / / shutdown timer T0 HighTime=TH0*256+TL0; / / keep high level width If ((LowTime370) || (LowTime640)) Return 0; / / if the low length is in a reasonable range, is that the error, stop decoding (if (HighTime420) and (HighTime620)) / / if high level time is about 560 microseconds, which counts 560 / 1.085 = 516 Temp=temp0x7f; / / (520-100=420, 520+100=620), the bit is 0 (if (HighTime1300) and (HighTime1800)) / / if high level time is about 1680 microseconds, which counts 1680 / 1.085 = 1548 Temp=temp|0x80; / / (1550-250250
       
 
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