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12864显示程序：
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
entity LCD12864 is
port ( clk :in std_logic;
       lcd_rs:out std_logic;
       lcd_rw:out std_logic;
      lcd_e: out std_logic;
      data:out std_logic_vector(7 downto 0)
);
end LCD12864;
architecture one of LCD12864 is
signal bcd: std_logic_vector(5 downto 0);
signal cnt: std_logic_vector(9 downto 0);
--signal count:std_logic_vector(7 downto 0):="00110000";
begin
process(clk)
begin
if clk'event and clk='1' then
   bcd<=bcd+1;
   cnt<=cnt+1;
   --count<=count+1;
   case bcd is
        
   when "000100"=>
         lcd_rs<='0';
         lcd_e<='1';
         data<="10000001";
   when "000101"=>
         lcd_rs<='0';
         lcd_e<='0';      
   when "000110"=>      --xian E
         lcd_rs<='1';
         lcd_e<='1';
         data<="01000101";
   when "000111"=>
         lcd_rs<='1';
         lcd_e<='0'; 
          
   when "001010"=>        --xian  E
         lcd_rs<='1';
         lcd_e<='1';
         data<="01000101"; 
   when "001011"=>
         lcd_rs<='1';
         lcd_e<='0';   
         
   when "001110"=>       --xian P
         lcd_rs<='1';
         lcd_e<='1';
         data<="01010000"; 
   when "001111"=>
         lcd_rs<='1';
         lcd_e<='0';
     
   when "010010"=>       --xian W
         lcd_rs<='1';
         lcd_e<='1';
         data<="01010111"; 
   when "010011"=>
         lcd_rs<='1';
         lcd_e<='0'; 
   
      
      
   when "100100"=>          
        lcd_rs<='0';
        lcd_e<='1';
        data<="10010010";
   when "100101"=>
        lcd_rs<='0';
        lcd_e<='0';         
   when "100110"=>       --显示
        lcd_rs<='1';
        lcd_e<='1';
        data<="10110111";
   when "100111"=>
         lcd_rs<='1';
         lcd_e<='0';   
   when "101000"=>
         lcd_rs<='1';
         lcd_e<='1';
         data<="11100111";
   when "101001"=>
         lcd_rs<='1';
         lcd_e<='0'; 
               
   when "101010"=>    
        lcd_rs<='1';
        lcd_e<='1';
        data<="11010011";
   when "101011"=>
         lcd_rs<='1';
         lcd_e<='0';   
   when "101100"=>
         lcd_rs<='1';
         lcd_e<='1';
         data<="11101111";
   when "101101"=>
         lcd_rs<='1';
         lcd_e<='0';
        
    when "101110"=>      
        lcd_rs<='1';
        lcd_e<='1';
        data<="11010101";
   when "101111"=>
         lcd_rs<='1';
         lcd_e<='0';   
   when "110000"=>
         lcd_rs<='1';
         lcd_e<='1';
         data<="11011111";
   when "110001"=>
         lcd_rs<='1';
         lcd_e<='0';
        
   
   when "110010"=>      --xian 1
         lcd_rs<='1';
         lcd_e<='1';
         data<="00110001";
   when "110011"=>
         lcd_rs<='1';
         lcd_e<='0'; 
          
   when "110100"=>        --xian  9
         lcd_rs<='1';
         lcd_e<='1';
         data<="00111001"; 
   when "110101"=>
         lcd_rs<='1';
         lcd_e<='0';   
         
   when "110110"=>       --xian 9
         lcd_rs<='1';
         lcd_e<='1';
         data<="00111001"; 
   when "110111"=>
         lcd_rs<='1';
         lcd_e<='0';
     
   when "111000"=>       --xian 1
         lcd_rs<='1';
         lcd_e<='1';
         data<="00110001"; 
   when "111001"=>
         lcd_rs<='1';
         lcd_e<='0';    
                                                                                                                         
   when others=>null;          
   end case;
end if;
end process;  
end ;

12864显示图片：

不错不错，加油哦。。。

谢谢支持，我会努力的。

LZ，这个“挨”是什么意思？

没什么意思只是起隔开作用