?? testctl.vhd
字號(hào):
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
ENTITY TESTCTL IS
PORT (CLKK : IN STD_LOGIC;
CNT_EN,RST_CNT,LOAD : OUT STD_LOGIC);
END ENTITY TESTCTL;
ARCHITECTURE behav OF TESTCTL IS
SIGNAL DIV2CLK : STD_LOGIC;
BEGIN
PROCESS( CLKK )
BEGIN
IF CLKK'EVENT AND CLKK = '1' THEN DIV2CLK <= NOT DIV2CLK;
END IF;
END PROCESS;
PROCESS (CLKK, DIV2CLK)
BEGIN
IF CLKK='0' AND Div2CLK='0' THEN RST_CNT <= '1';
ELSE RST_CNT <= '0'; END IF;
END PROCESS;
LOAD <= NOT DIV2CLK ; CNT_EN <= DIV2CLK;
END ARCHITECTURE behav;
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