signal_processing/hardware/system/task_fft.vhd

library ieee;
    use ieee.std_logic_1164.all;
    use ieee.numeric_std.all;

library work;
    use work.reg32.all;
    use work.task.all;

entity task_fft is
    port (
        clk : in std_logic;
        reset : in std_logic;

        address : in std_logic_vector( 3 downto 0 );
        read : in std_logic;
        readdata : out std_logic_vector( 31 downto 0 );
        write : in std_logic;
        writedata : in std_logic_vector( 31 downto 0 );

        signal_read : out std_logic;
        signal_readdata : in std_logic_vector( 31 downto 0 );

        signal_write : out std_logic;
        signal_writedata : out std_logic_vector( 31 downto 0 )
    );
end entity task_fft;

architecture struct of task_fft is

    signal task_start : std_logic;
    signal task_state : work.task.State := work.task.TASK_IDLE;
    signal task_config : work.reg32.RegArray( 0 to 2 );

begin
    u_control: entity work.hardware_task_control
        port map (
            clk => clk,
            reset => reset,

            address => address,
            read => read,
            readdata => readdata,
            write => write,
            writedata => writedata,

            task_start => task_start,
            task_state => task_state,
            task_config => task_config
        );

		
    u_fft: entity work.fft
	     generic map (
		      -- input data width of real/img part 
            input_data_width => 32,
				-- output data width of real/img part 
            output_data_width => 32
        )
        port map (
            clk => clk,
            reset => reset,

            task_start => task_start,
            task_state => task_state,

            signal_read => signal_read,
            signal_readdata => signal_readdata,

            signal_write => signal_write,
            signal_writedata => signal_writedata
        );

end architecture struct;