原创 ILX509（一个线阵CCD）的驱动

LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
ENTITY CNT32 IS
 PORT
 (
  CLK:IN STD_LOGIC;
  SH,RS,ROG:OUT STD_LOGIC;  --Signals of CCD;PULSE:to PULSE1 and PULSE2 through a WIRE gat and a NOT gat;
  PULSE,PULSE2:BUFFER STD_LOGIC
 );
END CNT32;
ARCHITECTURE A OF CNT32 IS
 SIGNAL Q: INTEGER RANGE 0 TO 29;
 SIGNAL NUM: INTEGER RANGE 0 TO 63899;
BEGIN
 PROCESS(CLK)
 BEGIN
  IF CLK'EVENT AND CLK='1' THEN
  CASE Q IS
   WHEN 16|17 =>
    RS<='1';
    SH<='0';
    Q<=Q+1;
   WHEN 20|21=>
    SH<='1';
    RS<='0';
    Q<=Q+1;
   WHEN 29 =>
    RS<='1';
    SH<='1';
    PULSE<=NOT PULSE;
    Q<=0;
   WHEN OTHERS =>
    RS<='1';
    SH<='1';
    Q<=Q+1;
   END CASE;
  END IF;
 END PROCESS;
 PROCESS(CLK)
 BEGIN
  IF CLK'EVENT AND CLK='0' THEN
   IF NUM=63899 THEN  NUM<=0;
   ELSE
    IF (NUM>1)AND(NUM<25) THEN
     ROG<='1';
    ELSE
     ROG<='0';
    END IF;
    NUM<=NUM+1;
   END IF;
  END IF;
 END PROCESS;
PULSE2<= NOT PULSE;
      
END A;

上面信号对应相应的管脚名，晶振使用32M的即可。ILX509是SONY的一片线阵CCD，绿光敏感，2K多象素，22DIP（比普通芯片的22DIP要宽）封装。