ࡱ> "  !#$%Root Entry F x SummaryInformation(DocumentSummaryInformation8WordDocument36  !"#$%&'()*Oh+'0 $ 0 < H T `lt|#include "reg52.h" @ 5O@K@ 5O@ 5O՜.+,D՜.+,\   (\dlKSOProductBuildVer2052-6.6.0.24610TableData  P(KSKS36 ,,,4`<i[V.  #include "reg52.h" #include "intrins.h" #define uchar unsigned char #define uint unsigned int sbit RS=P2^0; // b/fpenc؏/fcN sbit RW=P2^1; // b/fd\O؏/fQd\O sbit E =P2^2; //OOS sbit BF=P0^7; //_xr`h_MO uchar temp; //************************************************ void delay(uint z) //'Y~1msv^e { uchar x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } //************************************************ bit Read_busy_flag() //S_xh_MO { bit result; RS=0; RW=1; //ۏLd\O E=1; //AQpenc _nop_(); result=BF; E=0; return result; } //************************************************ void Write_instruction(uchar order) { while(Read_busy_flag()==1); RS=0; RW=0; //~mvfQeQcN E=0; _nop_(); P0=order;//\cNQeQmvf _nop_(); E=1; _nop_(); E=0; //dkemvf1\z)Rc6e0RpencN } //************************************************ void Write_data(uchar dat) { while(Read_busy_flag()==1); RS=1; RW=0; //~mvfQeQpenc E=0; _nop_(); P0=dat; //\pencQeQmvf _nop_(); E=1; _nop_(); E=0; //dkemvf1\z)Rc6e0RpencN } //************************************************ void Initialize() //GrvRYSǏ z { delay(15); Write_instruction(0x38); delay(15); Write_instruction(0x38); delay(15); Write_instruction(0x38); delay(5); Write_instruction(0x0f); //Sb_>f:yO\ gIQhQs NIQhp delay(5); Write_instruction(0x06); //QeQpencTIQhSy >f:yO\ NyR delay(5); Write_instruction(0x01); //n>f:yO\ delay(5); } //************************************************ void send_back() //pencԏVP[ z^ { SBUF=temp; while(!TI); //I{_pencS[k TI=0; //\Sh_MOn } //************************************************ void main(void) { Initialize(); delay(10); TMOD=0x20; //[ehV1 ]\Oe_2 TH1 =0xfd; TL1 =0xfd; //~[ehV1ňR

f:yO\ } Write_data(temp); // NMO:g~mvfQpenc } } 02^`b  " < > X Z f h   < > R T V X Z n p r * , T V h j l n p H    < > @ B J L p r t v " $ , . 0 h j l "$&JLNPRTV~H(*<>@JLNtvx JLNP  >@BVXZ "HJL^`bH   $&(:<>@(*,68:<PRTVX.046JLNdfH$&(68:LNP^`brtvx np(H(*,.FHfhjl "$&(&2`b > h  T X p dddddddddddddddddd , j n @ L r v $ . j ddddddddddddddddddj $T>LvddddddddddddddddddvLP @XJ`dddddddddddddddddd`&<@*TX0Ldddddddddddddddddd&Nt p*dddddddddddddddddd*h$(dddddddd1. A!#"$%S2P18F`Fcke a$$1$CJPJKHmH sH nHtH$A`$؞k=W[SO`u wcda$$G$@& $dN%dO&dP'dQ 9r  CJOJQJ (( j v`*( Gz Times New Roman-[SOQSymbolEuclid Symbol3$ z@Arial-ўSO?4 z@Courier New;Wingdings#include "reg52.h" QhuZ&!),.:;?]}    & 6"0000 0 0 00000 =@\]^([{  0 0 00000;[)?'*2 6 `0(