_primary.vhd

自己今年的毕业设计DDS波形发生器,有正弦波,方波,三角波,锯齿波.

library verilog;
use verilog.vl_types.all;
entity delta is
    port(
        delta_acc_add   : in     vl_logic_vector(9 downto 0);
        delta_phase_add : in     vl_logic_vector(9 downto 0);
        cin             : in     vl_logic;
        clk             : in     vl_logic;
        clr             : in     vl_logic;
        delta_sel       : in     vl_logic;
        en              : in     vl_logic;
        delta_data      : out    vl_logic_vector(7 downto 0)
    );
end delta;