LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.all;
USE IEEE.STD_LOGIC_UNSIGNED.all;
USE IEEE.STD_LOGIC_ARITH.all;
ENTITY counter IS
PORT(enable, clr : IN STD_LOGIC;
THECOUNT : OUT STD_LOGIC_VECTOR(5 downto 0));
END counter;
ARCHITECTURE a OF counter IS
SIGNAL tmp: STD_LOGIC_VECTOR(5 downto 0);
BEGIN
PROCESS(enable, CLR)
BEGIN
IF (CLR='1') THEN
tmp <= "000000";
ELSIF (enable'event and enable='1') THEN
tmp <= tmp + 1;
END IF;
end process;
THECOUNT <= tmp;
end a;
This is the code I am using to work a counter.. I use the simulator tool to discover that THECOUNT never increases after CLR goes low. THECOUNT is always 0. Is there something I am doing wrong? Thanks in advance for any help!
