i8051_all_tb.vhd.bak

来自「8051的vhdl源代码」· BAK 代码 · 共 80 行

LIBRARY ieee  ; 
LIBRARY work  ; 
USE ieee.std_logic_1164.all  ; 
USE ieee.std_logic_arith.all  ; 
USE work.i8051_lib.all  ; 
ENTITY i8051_all_tb  IS 
END ; 
 
ARCHITECTURE i8051_all_tb_arch OF i8051_all_tb IS
  SIGNAL p2_in   :  unsigned (7 downto 0)  ; 
  SIGNAL rst   :  std_logic  ; 
  SIGNAL xrm_addr   :  unsigned (15 downto 0)  ; 
  SIGNAL xrm_rd   :  std_logic  ; 
  SIGNAL xrm_out_data   :  unsigned (7 downto 0)  ; 
  SIGNAL p0_out   :  unsigned (7 downto 0)  ; 
  SIGNAL p1_in   :  unsigned (7 downto 0)  ; 
  SIGNAL p1_out   :  unsigned (7 downto 0)  ; 
  SIGNAL p3_in   :  unsigned (7 downto 0)  ; 
  SIGNAL p2_out   :  unsigned (7 downto 0)  ; 
  SIGNAL p3_out   :  unsigned (7 downto 0)  ; 
  SIGNAL clk   :  std_logic  ; 
  SIGNAL xrm_in_data   :  unsigned (7 downto 0)  ; 
  SIGNAL p0_in   :  unsigned (7 downto 0)  ; 
  SIGNAL xrm_wr   :  std_logic  ; 
  COMPONENT i8051_all  
    PORT ( 
      p2_in  : in unsigned (7 downto 0) ; 
      rst  : in std_logic ; 
      xrm_addr  : out unsigned (15 downto 0) ; 
      xrm_rd  : out std_logic ; 
      xrm_out_data  : out unsigned (7 downto 0) ; 
      p0_out  : out unsigned (7 downto 0) ; 
      p1_in  : in unsigned (7 downto 0) ; 
      p1_out  : out unsigned (7 downto 0) ; 
      p3_in  : in unsigned (7 downto 0) ; 
      p2_out  : out unsigned (7 downto 0) ; 
      p3_out  : out unsigned (7 downto 0) ; 
      clk  : in std_logic ; 
      xrm_in_data  : in unsigned (7 downto 0) ; 
      p0_in  : in unsigned (7 downto 0) ; 
      xrm_wr  : out std_logic ); 
  END COMPONENT ; 
BEGIN
  DUT  : i8051_all  
    PORT MAP ( 
      p2_in   => p2_in  ,
      rst   => rst  ,
      xrm_addr   => xrm_addr  ,
      xrm_rd   => xrm_rd  ,
      xrm_out_data   => xrm_out_data  ,
      p0_out   => p0_out  ,
      p1_in   => p1_in  ,
      p1_out   => p1_out  ,
      p3_in   => p3_in  ,
      p2_out   => p2_out  ,
      p3_out   => p3_out  ,
      clk   => clk  ,
      xrm_in_data   => xrm_in_data  ,
      p0_in   => p0_in  ,
      xrm_wr   => xrm_wr   ) ;
--*********
 process is
       begin
          clk<='0';
          wait for 25 ns;
          clk<='1';
          wait for 25 ns;
      end process;
--*********
   process is
       begin
           rst<='1';
           wait for 50 ns;
           rst<='0';
           wait for 200 ns;
           wait;
       end process;
END ;