Custom Wrapper

The CustomWrapper entity defines the interface that custom designs need to implement, as well as a simple abstraction from the instrument slot.

entity CustomWrapper is
    port (
        Clk : in std_logic;
        Reset : in std_logic;

        -- Input and Output use is platform-specific. These ports exist on all
        -- platforms but may not be externally connected.
        InputA : in signed(15 downto 0);
        InputB : in signed(15 downto 0);
        InputC : in signed(15 downto 0);
        InputD : in signed(15 downto 0);

        OutputA : out signed(15 downto 0);
        OutputB : out signed(15 downto 0);
        OutputC : out signed(15 downto 0);
        OutputD : out signed(15 downto 0);

        Control0 : in std_logic_vector(31 downto 0);
        Control1 : in std_logic_vector(31 downto 0);
        Control2 : in std_logic_vector(31 downto 0);
        Control3 : in std_logic_vector(31 downto 0);
        Control4 : in std_logic_vector(31 downto 0);
        Control5 : in std_logic_vector(31 downto 0);
        Control6 : in std_logic_vector(31 downto 0);
        Control7 : in std_logic_vector(31 downto 0);
        Control8 : in std_logic_vector(31 downto 0);
        Control9 : in std_logic_vector(31 downto 0)
    );
end entity;

Implementing the CustomWrapper interface simply requires defining an architecture.

architecture Behavioural of CustomWrapper is
begin
    -- Add custom code here
end architecture;

WARNING

Only one architecture should implement CustomWrapper per project. If multiple architectures exist, the one that is synthesized is undefined.

Wrapper Ports

The details of input, output and clock use is platform specific. For details, see Input and Output.

Control Registers

These provide control of custom designs at runtime. See Control Registers.