ATmega128并行控制帶字庫的12864程序

軟件：GCC V4.20--------------------------------------------------------------- 實驗內(nèi)容：寫Lcd12864_ST7920。---------------------------------------------------------------硬件連接：LCD12864_ST7920                  ATmega1281.GND               --------        GND2.VCC               --------        VCC3.V0                --------        NC4.RS(CS)            --------        PD75.R/W(SID)          --------        PG06.E(SCLK)           --------        PG17.D0                --------        PC08.D1                --------        PC19.D2                --------        PC210.D3               --------        PC311.D4               --------        PC412.D5               --------        PC513.D6               --------        PC614.D7               --------        PC715.PSB              --------        VCC16.NC               --------        NC17.RST              --------        VCC18.NC               --------        NC19.LED+             --------        VCC20.LED-             --------        GND以下是程序源代碼：---------------------------------------------------------------*/ #include avr/io.h>#includeavr/pgmspace.h>#include util/delay.h> #define  E_set        PORTG|=_BV(PG1)    //液晶使能#define  E_clear      PORTG=~_BV(PG1)#define  RW_set       PORTG|=_BV(PG0)    //液晶讀寫#define  RW_clear     PORTG=~_BV(PG0)#define  RS_set       PORTD|=_BV(PD7)    //液晶數(shù)據(jù)#define  RS_clear     PORTD=~_BV(PD7)   //液晶指令unsigned char j=0;unsigned char yb=0x80;unsigned char name00[] PROGMEM={"飛射白鹿雪連天，"};unsigned char name01[] PROGMEM={"笑書神俠倚碧鴛。"};unsigned char name02[] PROGMEM={"自古英雄多奇逸，"};unsigned char name03[] PROGMEM={"金老揮毫盡使然。"};unsigned char name10[] PROGMEM={"李白乘舟將欲行，"};unsigned char name11[] PROGMEM={"忽聞岸上踏歌聲。"};unsigned char name12[] PROGMEM={"桃花潭水深千尺，"};unsigned char name13[] PROGMEM={"不及汪倫送我情。"};unsigned char name20[] PROGMEM={"this is a 12864 "};unsigned char name21[] PROGMEM={"display program,"};unsigned char name22[] PROGMEM={"welcome to commu"};unsigned char name23[] PROGMEM={"nicate with me! "};void wr_com(unsigned char);void wr_data(unsigned char);void reset (void);void outChinese(unsigned char,unsigned char,unsigned char *point);void ydgb(void);void outchar(unsigned char,unsigned char,unsigned char *point);void wr_com(unsigned char value)//寫指令，寫指令時必須為RS=0;RW=0;{E_clear;RS_clear;RW_clear;_delay_ms(1);PORTC=value; //并入字符數(shù)據(jù)E_set;_delay_ms(2); //如果沒有延時就必須要加查忙指令E_clear;}void wr_data(unsigned char sj)//寫數(shù)據(jù)，寫數(shù)據(jù)時必須為 RS=1;RW=0;{E_clear;RS_set;RW_clear;_delay_ms(1);PORTC=sj;E_set;_delay_ms(1);//如果沒有延時就必須要加查忙指令E_clear;}void reset (void){wr_com(0x01);//清屏wr_com(0x08);//關(guān)顯示wr_com(0x03);//歸位wr_com(0x30);//功能設(shè)置wr_com(0x0f);//開顯示wr_com(0x01);//清屏}//****************//outChinese 為函數(shù)名//place 為顯示地址的首地址//unit  字符長度//charcode[]  要顯示數(shù)據(jù)的內(nèi)容 
				
            

				
					
					
				
			
                
			
							

                
			            

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