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*****************《電子應(yīng)用學(xué)習(xí)館》***************
***************************************************/
/*-----------------------------------------------
??名稱：LCD1602
??內(nèi)容：
??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“

#define?CHECK_BUSY

sbit?RS?=?P2^2;???//定義端口?
sbit?RW?=?P2^3;
sbit?EN?=?P2^4;

#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(shù)
------------------------------------------------*/
?bit?LCD_Check_Busy（void）?
?{?
#ifdef?CHECK_BUSY
?DataPort=?0xFF;?
?RS_CLR;?
?RW_SET;?
?EN_CLR;?
?_nop_（）;?
?EN_SET;
?return?（bit）（DataPort?&?0x80）;
#else
?return?0;
#endif
?}
/*------------------------------------------------
??????????????寫入命令函數(shù)
------------------------------------------------*/
?void?LCD_Write_Com（unsigned?char?com）?
?{??
?while（LCD_Check_Busy（））;?//忙則等待
?RS_CLR;?
?RW_CLR;?
?EN_SET;?
?DataPort=?com;?
?_nop_（）;?
?EN_CLR;
?}
/*------------------------------------------------
??????????????寫入數(shù)據(jù)函數(shù)
------------------------------------------------*/
?void?LCD_Write_Data（unsigned?char?Data）?
?{?
?while（LCD_Check_Busy（））;?//忙則等待
?RS_SET;?
?RW_CLR;?
?EN_SET;?
?DataPort=?Data;?
?_nop_（）;
?EN_CLR;
?}

/*------------------------------------------------
????????????????清屏函數(shù)
------------------------------------------------*/
?void?LCD_Clear（void）?
?{?
?LCD_Write_Com（0x01）;?
?DelayMs（5）;
?}
/*------------------------------------------------
??????????????寫入字符串函數(shù)
------------------------------------------------*/
?void?LCD_Write_String（unsigned?char?xunsigned?char?yunsigned?char?*s）?
?{?????
???????
?while?（*s）?
?	{?????
?LCD_Write_Char（xy*s）;?????
?s?++;??x++;???
?	}
?}
/*------------------------------------------------
??????????????寫入字符函數(shù)
------------------------------------------------*/
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(shù)
------------------------------------------------*/
?void?LCD_Init（void）?
?{
???LCD_Write_Com（0x38）;????/*顯示模式設(shè)置*/?
???DelayMs（5）;?
???LCD_Write_Com（0x38）;?
???DelayMs（5）;?
???LCD_Write_Com（0x38）;?
???DelayMs（5）;?
???LCD_Write_Com（0x38）;??
???LCD_Write_Com（0x08）;????/*顯示關(guān)閉*/?
???LCD_Write_Com（0x01）;????/*顯示清屏*/?
???LCD_Write_Com（0x06）;????/*顯示光標移動設(shè)置*/?
???DelayMs（5）;?
???LCD_Write_Com（0x0C）;????/*顯示開及光標設(shè)置*/
???}
???

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

?????文件?????????44??2018-12-07?00:00??頻率計\更多嵌入式資料.txt

?????文件???????3095??2019-01-20?21:21??頻率計\頻率計源碼\1602.c

?????文件????????769??2010-06-02?21:39??頻率計\頻率計源碼\1602.h

?????文件????????998??2019-01-20?21:12??頻率計\頻率計源碼\delay.c

?????文件????????654??2010-06-02?00:39??頻率計\頻率計源碼\delay.h

?????文件???????3500??2019-01-20?21:38??頻率計\頻率計源碼\main.c

?????文件???????5779??2010-06-09?10:08??頻率計\頻率計源碼\obj\1602.lst

?????文件???????6632??2010-06-09?10:08??頻率計\頻率計源碼\obj\1602.obj

?????文件???????1899??2010-06-09?10:08??頻率計\頻率計源碼\obj\delay.lst

?????文件???????1170??2010-06-09?10:08??頻率計\頻率計源碼\obj\delay.obj

?????文件???????6101??2010-06-09?10:08??頻率計\頻率計源碼\obj\main.lst

?????文件???????6556??2010-06-09?10:08??頻率計\頻率計源碼\obj\main.obj

?????文件??????15858??2010-06-09?10:08??頻率計\頻率計源碼\obj\頻率計

?????文件???????9073??2010-06-09?10:08??頻率計\頻率計源碼\obj\頻率計.hex

?????文件??????18009??2010-06-09?10:08??頻率計\頻率計源碼\obj\頻率計.m51

?????文件????????173??2010-07-09?15:03??頻率計\頻率計源碼\obj\頻率計.plg

?????文件?????????44??2018-12-07?00:00??頻率計\頻率計源碼\更多嵌入式資料.txt

?????文件????????173??2010-06-08?13:04??頻率計\頻率計源碼\頻率計.plg

????.......?????85967??2019-01-20?21:38??頻率計\頻率計源碼\頻率計.uvgui.Administrator

????.......?????11976??2019-01-20?21:12??頻率計\頻率計源碼\頻率計.uvopt

????.......?????14189??2019-01-20?21:12??頻率計\頻率計源碼\頻率計.uvproj

?????文件???????1861??2010-06-09?10:08??頻率計\頻率計源碼\頻率計_Opt.Bak

?????文件??????59998??2019-01-20?21:20??頻率計\頻率計電路圖\__Previews\原理圖.SchDocPreview

?????文件?????135481??2019-01-20?21:20??頻率計\頻率計電路圖\原理圖.pdf

?????文件?????127488??2019-01-20?21:20??頻率計\頻率計電路圖\原理圖.SchDoc

?????文件?????????44??2018-12-07?00:00??頻率計\頻率計電路圖\更多嵌入式資料.txt

?????目錄??????????0??2019-01-20?21:10??頻率計\頻率計源碼\obj

????...D.H.?????????0??2019-01-20?21:14??頻率計\頻率計電路圖\__Previews

?????目錄??????????0??2019-01-20?21:38??頻率計\頻率計源碼

?????目錄??????????0??2019-01-20?21:20??頻率計\頻率計電路圖

............此處省略4個文件信息