_primary.vhd

使用Libero提供的异步通信IP核实现UART通信

library verilog;
use verilog.vl_types.all;
entity uart_initial is
    port(
        CLK             : in     vl_logic;
        RST             : in     vl_logic;
        DATA_IN         : in     vl_logic_vector(7 downto 0);
        DATA_OUT        : out    vl_logic_vector(7 downto 0);
        OEN             : in     vl_logic;
        WEN             : in     vl_logic;
        CS              : in     vl_logic;
        TX              : out    vl_logic;
        RX              : in     vl_logic;
        TXRDY           : out    vl_logic;
        RXRDY           : out    vl_logic
    );
end uart_initial;