#include“l(fā)cd.h“


void?Read_Busy（）???????????//忙檢測函數(shù)，判斷bit7是0，允許執(zhí)行；1禁止
{
????unsigned?char?sta;??????//
????LCD1602_DB?=?0xff;
????LCD1602_RS?=?0;
????LCD1602_RW?=?1;
????do
????{
????????LCD1602_EN?=?1;
????????sta?=?LCD1602_DB;
????????LCD1602_EN?=?0;????//使能，用完就拉低，釋放總線
????}while（sta?&?0x80）;
}

void?Lcd1602_Write_Cmd（unsigned?char?cmd）?????//寫命令
{
????Read_Busy（）;
????LCD1602_RS?=?0;
????LCD1602_RW?=?0;
????LCD1602_DB?=?cmd;
????LCD1602_EN?=?1;
????LCD1602_EN?=?0;????
}

void?Lcd1602_Write_Data（unsigned?char?dat）???//寫數(shù)據(jù)
{
??????Read_Busy（）;
??????LCD1602_RS?=?1;
??????LCD1602_RW?=?0;
??????LCD1602_DB?=?dat;
??????LCD1602_EN?=?1;
??????LCD1602_EN?=?0;
}

void?LcdSetCursor（unsigned?char?xunsigned?char?y）??//坐標(biāo)顯示
{
????unsigned?char?addr;
????if（y?==?0）
????????addr?=?0x00?+?x;
????else
????????addr?=?0x40?+?x;
????
????Lcd1602_Write_Cmd（addr|0x80）;
}

//按指定位置顯示一個字符
void?DisplayOneChar（unsigned?char?X?unsigned?char?Y?unsigned?char?D

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????120??2016-10-11?08:59??接線說明.txt
?????目錄???????????0??2020-08-02?20:02??程序\
?????文件????????1696??2016-10-11?08:59??程序\lcd.c
?????文件????????1291??2016-10-11?08:59??程序\lcd.h
?????文件????????2494??2016-10-11?08:59??程序\main.c
?????文件???????13107??2016-10-11?08:59??程序\pro
?????文件????????4964??2016-10-11?08:59??程序\pro.hex
?????文件????????5851??2016-10-11?08:59??程序\pro.uvopt
?????文件???????13923??2016-10-11?08:59??程序\pro.uvproj