tuto_microblaze_top.vhd

-- tuto_microblaze_top.vhd
-- Flavio "Levi" Capitao - 08.05.2015
-- Tutorial Micoblaze MCS
-- http://levi-ee.com

LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
use IEEE.NUMERIC_STD.ALL;

entity tuto_microblaze_top is
    port(
            --FTDI
            --FTDI_TX_i             :       in std_logic; -- not used
            FTDI_RX_o               :       out std_logic;
            FTDI_nRESET_o           :       out std_logic;
            FTDI_nCTS_o          :     out std_logic; -- not used

            --DIPs
            DIP_i                       :       in std_logic_vector(7 downto 0);

            --LEDs
            --FPGA_LED_o                :       out std_logic_vector(7 downto 0);

         -- CLOCK
         SP6_Clk_100MHz_i       :       in std_logic;

            -- RESET
            SP6_nReset_i            :       in std_logic
    );
end tuto_microblaze_top;


architecture Behavioral of tuto_microblaze_top is

    -- global reset (polarity adaptation)
   signal reset_s : std_logic;

      signal test : STD_LOGIC_VECTOR(7 DOWNTO 0);


    -- Microblaze COMPONENT
    COMPONENT mb_mcs
      PORT (
         Clk : IN STD_LOGIC;
         Reset : IN STD_LOGIC;
         UART_Tx : OUT STD_LOGIC;
         GPI1 : IN STD_LOGIC_VECTOR(7 DOWNTO 0)
      );
    END COMPONENT;

    begin

    -- global reset (polarity adaptation)
    reset_s <= not SP6_nReset_i;

    -- FTDI
    --FTDI_RX_o <= FTDI_TX_i; -- loopback
    FTDI_nRESET_o <= not reset_s;
    FTDI_nCTS_o <= '1'; -- not used

    -- Microblaze INSTANTIATION
   mcs_0 : mb_mcs
   PORT MAP (
        Clk => SP6_Clk_100MHz_i,
        Reset => reset_s,
        UART_Tx => FTDI_RX_o,
        GPI1 => DIP_i
  );

end Behavioral;