cnt4.vhd

来自「服务器的的板在载控制器的AHDL程序,包括原理图编译,用在EPM7128上(CP」· VHDL 代码 · 共 16 行

LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;

ENTITY CNT4 IS
   PORT(CLK: IN STD_LOGIC;
         Q:  BUFFER INTEGER RANGE 0 TO 15);
END;

ARCHITECTURE one OF CNT4 IS
BEGIN
   PROCESS(CLK)
   BEGIN
      IF  CLK'EVENT AND CLK='1' THEN Q<=Q+1;END IF;
   END PROCESS;
END;