/*-----------------------------------------------
??名稱：LCD1602
??引腳定義如下：1-VSS?2-VDD?3-V0?4-RS?5-R/W?6-E?7-14?DB0-DB7?15-BLA?16-BLK
------------------------------------------------*/
#include?“1602.h“
#include?“delay.h“


sbit?RS?=?P2^5;???//定義端口?
sbit?RW?=?P2^6;
sbit?EN?=?P2^7;

#define?RS_CLR?RS=0?
#define?RS_SET?RS=1

#define?RW_CLR?RW=0?
#define?RW_SET?RW=1?

#define?EN_CLR?EN=0
#define?EN_SET?EN=1

#define?DataPort?P0

/*------------------------------------------------
??????????????判忙函數
------------------------------------------------*/
?bit?LCD_Check_Busy（void）?
?{?
	?DataPort=?0xFF;?
	?RS_CLR;?
	?RW_SET;?
	?EN_CLR;?
	?_nop_（）;?
	?EN_SET;
	?return?（bit）（DataPort?&?0x80）;
?}
/*------------------------------------------------
????????????//??寫入命令函數
------------------------------------------------*/
?void?LCD_Write_Com（unsigned?char?com）?
?{??
	?while（LCD_Check_Busy（））;?//忙則等待
	?EN_CLR;
	?RS_CLR;?
	?RW_CLR;?
	??
	?DataPort=?com;
	?EN_SET;?
	?_nop_（）;
	??_nop_（）;?
	?EN_CLR;
?}
/*------------------------------------------------
??????????????//寫入數據函數
------------------------------------------------*/
?void?LCD_Write_Data（unsigned?char?Data）?
?{?
	?while（LCD_Check_Busy（））;?//忙則等待
	?EN_CLR;
	?RS_SET;?
	?RW_CLR;?
	?
	?DataPort=?Data;
	?EN_SET;??
	?_nop_（）;
	?EN_CLR;	
?}

/*------------------------------------------------
????????????????//清屏函數
------------------------------------------------*/
?void?LCD_Clear（void）?
?{?
	?LCD_Write_Com（0x01）;?
	?delayms（1）;
?}
/*------------------------------------------------
??????????????寫入字符串函數
------------------------------------------------*/
?void?LCD_Write_String（unsigned?char?xunsigned?char?yunsigned?char?*s）?
?{?????
	?if?（y?==?0）?
	?	{?????
		?LCD_Write_Com（0x80?+?x）;?????//表示第一行
	?	}
	?else?
	?	{??????
	?	LCD_Write_Com（0xC0?+?x）;??????//表示第二行
	?	}????????
	?while?（*s）?
	?	{?????
	?LCD_Write_Data（?*s）;?????
	?s?++;?????
	?	}
?}
/*------------------------------------------------
??????????????寫入字符函數
------------------------------------------------*/
?void?LCD_Write_Char（unsigned?char?xunsigned?char?yunsigned?char?Data）?
?{?????
	?if?（y?==?0）?
	?	{?????
	?	LCD_Write_Com（0x80?+?x）;?????
	?	}????
	?else?
	?	{?????
	?	LCD_Write_Com（0xC0?+?x）;?????
	?	}????????
	?LCD_Write_Data（?Data）;??
?}
/*------------------------------------------------
??????????????初始化函數
------------------------------------------------*/
?void?LCD_Init（void）?
?{
?	??LCD_Write_Com（0x01）;????/*顯示清屏*/?
//?	??LCD_Write_Com（0x38）;????/*顯示模式設置*/?
	??delayms（2）;?
?	??LCD_Write_Com（0x38）;?
?	??delayms（2）;?
?	??LCD_Write_Com（0x38）;?
?	??delayms（2）;?
//?	??LCD_Write_Com（0x38）;??
//?	??LCD_Write_Com（0x08）;????/*顯示關閉*/?
?	?
?	??LCD_Write_Com（0x06）;????/*顯示光標移動設置*/?
?	??LCD_Write_Com（0x0C）;????/*顯示開及光標設置*/
	??
	??LCD_Write_Com（0xd0）;
	??delayms（2）;
???}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-06-05?22:53??ZE08-CH2O?甲醛濃度檢測完整資料\
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