LCD液晶显示程序.doc

#include<>//包含头文件,一般情况不需要改动,头文件包含特殊功能寄存器的定义#include<>#include<>#include<>#include<.h>#include<>#include<>sbitRS=P2^4;//定义端口sbitRW=P2^5;sbitEN=P2^6;sbitP0_0=P0^0;sbitP0_1=P0^1;sbitP0_2=P0^2;sbitP0_3=P0^3;sbitP0_4=P0^4;sbitP0_5=P0^5;sbitP0_6=P0^6;sbitP0_7=P0^7;sbitP1_0=P1^0;sbitP1_1=P1^1;sbitP1_2=P1^2;sbitP1_3=P1^3;sbitP1_4=P1^4;sbitP1_5=P1^5;sbitP1_6=P1^6;sbitP1_7=P1^7;sbitP2_0=P2^0;sbitP2_1=P2^1;sbitP2_2=P2^2;sbitP2_3=P2^3;sbitP2_4=P2^4;sbitP2_5=P2^5;sbitP2_6=P2^6;sbitP2_7=P2^7;sbitP3_0=P3^0;sbitP3_1=P3^1;sbitP3_2=P3^2;sbitP3_3=P3^3;sbitP3_4=P3^4;sbitP3_5=P3^5;sbitP3_6=P3^6;sbitP3_7=P3^7;sbitB_0=B^0;sbitB_1=B^1;sbitB_2=B^2;sbitB_3=B^3;sbitB_4=B^4;sbitB_5=B^5;sbitB_6=B^6;sbitB_7=B^7;#defineRS_CLRRS=0#defineRS_SETRS=1#defineRW_CLRRW=0#defineRW_SETRW=1#defineEN_CLREN=0#defineEN_SETEN=1#defineDataPortP0unsignedcharcodeC[]={'0','1','2','3','4','5','6','7','8','9'};/*------------------------------------------------uS延时函数,含有输入参数unsignedchart,无返回值unsignedchar是定义无符号字符变量,其值的范围是0~255这里使用晶振12M,精确延时请使用汇编,大致延时长度如下T=tx2+5uS------------------------------------------------*/voidDelayUs2x(unsignedchart){while(--t);}/*------------------------------------------------mS延时函数,含有输入参数unsignedchart,无返回值unsignedchar是定义无符号字符变量,其值的范围是0~255这里使用晶振12M,精确延时请使用汇编------------------------------------------------*/voidDelayMs(unsignedchart){while(t--){//大致延时1mSDelayUs2x(