outtest.vhd

很多仪器都输出同步时钟

library ieee;
use ieee.std_logic_1164.all;
use ieee. std_logic_unsigned.all;
entity outtest is
port(wrreq,wrclk:out std_logic;
     wrfull:in std_logic;
     testdata:out std_logic_vector(63 downto 0)); 
end outtest;
architecture rtl of outtest is 
begin
process
begin
 if(wrfull='0') then
   wrreq<='1';
   wrclk<='1';
   testdata<="1000100010001000011101110111011101100110011001100101010101010101";
end if;
end process;
end rtl;