#include“l(fā)cd.h“
#include?“reg52.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
{
??????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?DData）
{
	Y?&=?0x1;
	X?&=?0xF;?//限制X不能大于15，Y不能大于1
	if?（Y）?X?|=?0x40;?//當要顯示第二行時地址碼+0x40;
	X?|=?0x80;?//算出指令碼
	Lcd1602_Write_Cmd（X）;?//發(fā)命令字
	Lcd1602_Write_Data（DData）;?//發(fā)數(shù)據
}


void?LcdShowStr（unsigned?char?xunsigned?char?yunsigned?char?*str）?????//顯示字符串
{
????LcdSetCursor（xy）;??????//當前字符的坐標
????while（*str?!=?‘\0‘）
????{
????????Lcd1602_Write_Data（*str++）;
????}
}

void?InitLcd1602（）??????????????//1602初始化
{
????Lcd1602_Write_Cmd（0x38）;????//打開，5*88位數(shù)據
????Lcd1602_Write_Cmd（0x0c）;
????Lcd1602_Write_Cmd（0x06）;
????Lcd1602_Write_Cmd（0x01）;????//清屏???
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1714??2016-12-17?09:15??車位檢測代碼\主機\lcd.c

?????文件???????1311??2016-12-17?16:40??車位檢測代碼\主機\lcd.h

?????文件???????3653??2017-03-07?20:08??車位檢測代碼\主機\lcd.LST

?????文件???????5600??2017-03-07?20:08??車位檢測代碼\主機\lcd.OBJ

?????文件???????5115??2011-10-21?18:20??車位檢測代碼\主機\STARTUP.A51

?????文件??????11773??2011-10-21?18:20??車位檢測代碼\主機\STARTUP.lst

?????文件????????881??2011-10-21?18:20??車位檢測代碼\主機\STARTUP.obj

?????文件??????12648??2017-03-07?20:08??車位檢測代碼\主機\接受

?????文件???????2258??2017-03-07?21:47??車位檢測代碼\主機\接受.c

?????文件???????2738??2017-03-07?20:08??車位檢測代碼\主機\接受.hex

?????文件?????????52??2017-03-07?20:08??車位檢測代碼\主機\接受.lnp

?????文件???????5921??2017-03-07?20:08??車位檢測代碼\主機\接受.LST

?????文件??????15518??2017-03-07?20:08??車位檢測代碼\主機\接受.M51

?????文件???????8712??2017-03-07?20:08??車位檢測代碼\主機\接受.OBJ

?????文件???????1058??2011-12-20?16:04??車位檢測代碼\主機\接受.opt.bak

?????文件???????2659??2017-03-07?21:47??車位檢測代碼\主機\接受.plg

?????文件???????1983??2011-11-13?23:40??車位檢測代碼\主機\接受.Uv2.bak

?????文件??????66520??2017-03-07?21:47??車位檢測代碼\主機\接受.uvopt

?????文件??????13396??2016-12-17?09:43??車位檢測代碼\主機\接受.uvproj

?????文件???????1058??2011-12-20?10:32??車位檢測代碼\主機\接受_Opt.Bak

?????文件???????1984??2011-11-13?22:58??車位檢測代碼\主機\接受_Uv2.Bak

?????文件??????66547??2017-03-07?17:53??車位檢測代碼\主機\接受_uvopt.bak

?????文件??????13236??2016-12-13?16:56??車位檢測代碼\主機\接受_uvproj.bak

?????文件???????5115??2011-10-21?18:20??車位檢測代碼\從機1\STARTUP.A51

?????文件??????11773??2011-10-21?18:20??車位檢測代碼\從機1\STARTUP.lst

?????文件???????7602??2017-03-07?21:47??車位檢測代碼\從機1\發(fā)送

?????文件???????2017??2017-03-07?19:57??車位檢測代碼\從機1\發(fā)送.c

?????文件???????2812??2017-03-07?21:47??車位檢測代碼\從機1\發(fā)送.hex

?????文件?????????40??2017-03-07?21:47??車位檢測代碼\從機1\發(fā)送.lnp

?????文件???????5746??2017-03-07?21:47??車位檢測代碼\從機1\發(fā)送.LST

............此處省略29個文件信息