LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
ENTITY cnt4 IS
PORT (clk:IN STD_LOGIC;
q:OUT INTEGER RANGE 0 TO 15);
END cnt4;
ARCHITECTURE behavior OF cnt4 IS
SIGNAL s: INTEGER RANGE 0 to 15;
BEGIN
PROCESS(clk,S)
BEGIN
IF clk'event AND clk='1' THEN
s=s+1;
END IF;
q<=s;
END PROCESS;
END behavior;
各位高手,偶是初学者请问这个程序怎么修改啊..... |
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