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          EEPW首頁 
	 > 嵌入式系統(tǒng) > 設計應用 > AVR128的程序——12864液晶顯示
          
    
          

          

          


	
	
	

          
	
          
		
          
			
          AVR128的程序——12864液晶顯示
          
						
          
				作者：
				時間：2016-11-22
				來源：網絡
				
				
				
				
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			#include 
          #define uint unsigned int
          #define uchar unsigned char
          #define psbset DDRB |= (1<<4)
          #define psbset PORTB |= (1<<4)
          #define psbclr PORTB &=~(1<<4)
          #define rsout DDRB |= (1<<5)
          #define rsset PORTB |=(1<<5)
          #define rsclr PORTB &=~(1<<5)
          #define rwout DDRB |= (1<<6)
          #define rwset PORTB |= (1<<6)
          #define rwclr PORTB &= ~(1<<6)
          #define enout DDRB |= (1<<7)
          #define enset PORTB |= (1<<7)
          #define enclr PORTB &= ~(1<<7)
          unsigned char table[]="做我女朋友吧！";
          void mcu_init(void);
          void Delayus(uint US) 
          {
            uint i;
            US=US*5/4;  
            for( i=0;i
          }
          void Delayms(uint MS) 
          {
            uint i,j;
            for( i=0;i
            for(j=0;j<1141;j++);
          }
          void write_12864com(uchar com)
          {
          rwclr;
          rsclr;
          Delayus(500);
          PORTA=com;
          enset;
          Delayus(1000);
          enclr;
          Delayus(1000);
          }
          void write_12864dat(uchar dat)
          {
          rwclr;
          rsset;
          Delayus(500);
          PORTA=dat;
          enset;
          Delayus(1000);
          enclr;
          Delayus(1000);
          }
          void init12864lcd(void)
          {
          Delayms(500);
          write_12864com(0x30);
          Delayus(500);
          write_12864com(0x30);
          Delayus(500);
          write_12864com(0x0f);
          Delayus(500);
          write_12864com(0x01);
          Delayms(25);
          write_12864com(0x06);
          Delayus(2500);
          write_12864com(0x0c);
          Delayus(500);
          }
          void display(void)
          {
          uchar i;
          write_12864com(0x80);
          for(i=0;i<14;i++)
          {
          write_12864dat(table[i]);
          Delayms(50);
          }
          }
          void main(void)
          {
            mcu_init();
          init12864lcd();
          while(1)
          {
          display();
          while(1);
          }
          }
          void mcu_init(void)
          {
           DDRA = 0XFF;      
           PORTA = 0XFF;
           DDRC = 0XFF;         
           PORTC = 0XFF;
           
           DDRF |= 0X0E;
           PORTF |= 0X0E;
           PORTF &= 0xF0;   
           
           DDRB |= 0X10;
           PORTB |= 0X10;
           
           psbset;
           rsout;
           rwout;
           enout;
          }
          
				
            
                
			
							
          
                
			              
              
            
          
		
          
		
          
		
          
		
          
		
          
			
            
				
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            			            AVR12812864液晶顯
                        
            
          
            
			
          
		
          	
		

	

          
	
	
          
		
          
			
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