dds.vhd

一个可用的很不错的DDS 频率合成程序

			WHEN "0010000000" => OUTP <= "010110011";
			WHEN "0010000001" => OUTP <= "010110100";
			WHEN "0010000010" => OUTP <= "010110101";
			
			WHEN "0010000011" => OUTP <= "010110110";
			WHEN "0010000100" => OUTP <= "010111000";
			WHEN "0010000101" => OUTP <= "010111001";
			WHEN "0010000110" => OUTP <= "010111010";
			WHEN "0010000111" => OUTP <= "010111011";
			WHEN "0010001000" => OUTP <= "010111100";
			WHEN "0010001001" => OUTP <= "010111101";
			WHEN "0010001010" => OUTP <= "010111110";
			WHEN "0010001011" => OUTP <= "010111111";
			WHEN "0010001100" => OUTP <= "011000000";
			WHEN "0010001101" => OUTP <= "011000001";
			WHEN "0010001110" => OUTP <= "011000010";
			WHEN "0010001111" => OUTP <= "011000011";
			
			--WHEN "0010010000" => OUTP <= "011000100";
			--WHEN "0010010001" => OUTP <= "011000101";
			--WHEN "0010010010" => OUTP <= "011000110";
			--WHEN "0010010011" => OUTP <= "011000111";
			--WHEN "0010010100" => OUTP <= "011001000";
			--WHEN "0010010101" => OUTP <= "011001001";
			--WHEN "0010010110" => OUTP <= "011001010";
			--WHEN "0010010111" => OUTP <= "011001011";
			--WHEN "0010011000" => OUTP <= "011001100";
			--WHEN "0010011001" => OUTP <= "011001101";
			--WHEN "0010011010" => OUTP <= "011001110";
			--WHEN "0010011011" => OUTP <= "011001111";
			--WHEN "0010011100" => OUTP <= "011010000";
			
			--WHEN "0010011101" => OUTP <= "011010000";
			--WHEN "0010011110" => OUTP <= "011010001";
			--WHEN "0010011111" => OUTP <= "011010010";
			--WHEN "0010100000" => OUTP <= "011010011";
			--WHEN "0010100001" => OUTP <= "011010100";
			--WHEN "0010100010" => OUTP <= "011010101";
			--WHEN "0010100011" => OUTP <= "011010110";
			--WHEN "0010100100" => OUTP <= "011010111";
			--WHEN "0010100101" => OUTP <= "011010111";
			--WHEN "0010100110" => OUTP <= "011011000";
			--WHEN "0010100111" => OUTP <= "011011001";
			--WHEN "0010101000" => OUTP <= "011011010";
			--WHEN "0010101001" => OUTP <= "011011011";
			
			--WHEN "0010101010" => OUTP <= "011011100";
			--WHEN "0010101011" => OUTP <= "011011100";
			--WHEN "0010101100" => OUTP <= "011011101";
			--WHEN "0010101101" => OUTP <= "011011110";
			--WHEN "0010101110" => OUTP <= "011011111";
			--WHEN "0010101111" => OUTP <= "011011111";
			--WHEN "0010110000" => OUTP <= "011100000";
			--WHEN "0010110001" => OUTP <= "011100001";
			--WHEN "0010110010" => OUTP <= "011100010";
			--WHEN "0010110011" => OUTP <= "011100010";
			--WHEN "0010110100" => OUTP <= "011100011";
			--WHEN "0010110101" => OUTP <= "011100100";
			--WHEN "0010110110" => OUTP <= "011100100";
			
			WHEN "0010110111" => OUTP <= "011100101";
			WHEN "0010111000" => OUTP <= "011100110";
			WHEN "0010111001" => OUTP <= "011100111";
			WHEN "0010111010" => OUTP <= "011100111";
			WHEN "0010111011" => OUTP <= "011101000";
			WHEN "0010111100" => OUTP <= "011101000";
			WHEN "0010111101" => OUTP <= "011101001";
			WHEN "0010111110" => OUTP <= "011101010";
			WHEN "0010111111" => OUTP <= "011101010";
			WHEN "0011000000" => OUTP <= "011101011";
			WHEN "0011000001" => OUTP <= "011101100";
			WHEN "0011000010" => OUTP <= "011101100";
			WHEN "0011000011" => OUTP <= "011101101";
			
			WHEN "0011000100" => OUTP <= "011101101";
			WHEN "0011000101" => OUTP <= "011101110";
			WHEN "0011000110" => OUTP <= "011101110";
			WHEN "0011000111" => OUTP <= "011101111";
			WHEN "0011001000" => OUTP <= "011110000";
			WHEN "0011001001" => OUTP <= "011110000";
			WHEN "0011001010" => OUTP <= "011110001";
			WHEN "0011001011" => OUTP <= "011110001";
			WHEN "0011001100" => OUTP <= "011110010";
			WHEN "0011001101" => OUTP <= "011110010";
			WHEN "0011001110" => OUTP <= "011110011";
			WHEN "0011001111" => OUTP <= "011110011";
			WHEN "0011010000" => OUTP <= "011110100";

			WHEN "0011010001" => OUTP <= "011110100";
			WHEN "0011010010" => OUTP <= "011110100";
			
			WHEN "0011010011" => OUTP <= "011110101";
			WHEN "0011010100" => OUTP <= "011110101";
			WHEN "0011010101" => OUTP <= "011110110";
			WHEN "0011010110" => OUTP <= "011110110";
			WHEN "0011010111" => OUTP <= "011110111";
			WHEN "0011011000" => OUTP <= "011110111";
			WHEN "0011011001" => OUTP <= "011110111";
			WHEN "0011011010" => OUTP <= "011111000";
			WHEN "0011011011" => OUTP <= "011111000";
			WHEN "0011011100" => OUTP <= "011111000";
			WHEN "0011011101" => OUTP <= "011111001";
			WHEN "0011011110" => OUTP <= "011111001";
			WHEN "0011011111" => OUTP <= "011111001";
			WHEN "0011100000" => OUTP <= "011111010";
			WHEN "0011100001" => OUTP <= "011111010";
			WHEN "0011100010" => OUTP <= "011111010";
			WHEN "0011100011" => OUTP <= "011111011";
			WHEN "0011100100" => OUTP <= "011111011";
			WHEN "0011100101" => OUTP <= "011111011";
			WHEN "0011100110" => OUTP <= "011111100";
			WHEN "0011100111" => OUTP <= "011111100";

			WHEN "0011101000" => OUTP <= "011111100";
			WHEN "0011101001" => OUTP <= "011111100";
			WHEN "0011101010" => OUTP <= "011111100";
			WHEN "0011101011" => OUTP <= "011111101";
			WHEN "0011101100" => OUTP <= "011111101";
			WHEN "0011101101" => OUTP <= "011111101";
			WHEN "0011101110" => OUTP <= "011111101";
			WHEN "0011101111" => OUTP <= "011111101";
			WHEN "0011110000" => OUTP <= "011111110";
			WHEN "0011110001" => OUTP <= "011111110";
			WHEN "0011110010" => OUTP <= "011111110";
			WHEN "0011110011" => OUTP <= "011111110";
			WHEN "0011110100" => OUTP <= "011111110";
			WHEN "0011110101" => OUTP <= "011111110";
			WHEN "0011110110" => OUTP <= "011111110";
			WHEN "0011110111" => OUTP <= "011111111";
			WHEN "0011111000" => OUTP <= "011111111";
			WHEN "0011111001" => OUTP <= "011111111";
			WHEN "0011111010" => OUTP <= "011111111";
			WHEN "0011111011" => OUTP <= "011111111";
			WHEN "0011111100" => OUTP <= "011111111";

			WHEN "0011111101" => OUTP <= "011111111";
			WHEN "0011111110" => OUTP <= "011111111";
			WHEN "0011111111" => OUTP <= "011111111";
			WHEN "0100000000" => OUTP <= "011111111";
			WHEN "0100000001" => OUTP <= "011111111";
			WHEN "0100000010" => OUTP <= "011111111";
			WHEN "0100000011" => OUTP <= "011111111";
			WHEN "0100000100" => OUTP <= "011111111";
			WHEN "0100000101" => OUTP <= "011111111";
			WHEN "0100000110" => OUTP <= "011111111";
			WHEN "0100000111" => OUTP <= "011111111";
			WHEN "0100001000" => OUTP <= "011111111";
			WHEN "0100001001" => OUTP <= "011111111";
			WHEN "0100001010" => OUTP <= "011111111";
			WHEN "0100001011" => OUTP <= "011111111";
			WHEN "0100001100" => OUTP <= "011111110";
			WHEN "0100001101" => OUTP <= "011111110";
			WHEN "0100001110" => OUTP <= "011111110";
			WHEN "0100001111" => OUTP <= "011111110";
			WHEN "0100010000" => OUTP <= "011111110";
			WHEN "0100010001" => OUTP <= "011111110";

			WHEN "0100010010" => OUTP <= "011111110";
			WHEN "0100010011" => OUTP <= "011111101";
			WHEN "0100010100" => OUTP <= "011111101";
			WHEN "0100010101" => OUTP <= "011111101";
			WHEN "0100010110" => OUTP <= "011111101";
			WHEN "0100010111" => OUTP <= "011111101";
			WHEN "0100011000" => OUTP <= "011111100";
			WHEN "0100011001" => OUTP <= "011111100";
			WHEN "0100011010" => OUTP <= "011111100";
			WHEN "0100011011" => OUTP <= "011111100";
			WHEN "0100011100" => OUTP <= "011111100";
			WHEN "0100011101" => OUTP <= "011111011";
			WHEN "0100011110" => OUTP <= "011111011";
			WHEN "0100011111" => OUTP <= "011111011";
			WHEN "0100100000" => OUTP <= "011111010";
			WHEN "0100100001" => OUTP <= "011111010";
			WHEN "0100100010" => OUTP <= "011111010";
			WHEN "0100100011" => OUTP <= "011111001";
			WHEN "0100100100" => OUTP <= "011111001";
			WHEN "0100100101" => OUTP <= "011111001";
			WHEN "0100100110" => OUTP <= "011111000";

			WHEN "0100100111" => OUTP <= "011111000";
			WHEN "0100101000" => OUTP <= "011111000";
			WHEN "0100101001" => OUTP <= "011110111";
			WHEN "0100101010" => OUTP <= "011110111";
			WHEN "0100101011" => OUTP <= "011110111";
			WHEN "0100101100" => OUTP <= "011110110";
			WHEN "0100101101" => OUTP <= "011110110";
			WHEN "0100101110" => OUTP <= "011110101";
			WHEN "0100101111" => OUTP <= "011110101";
			WHEN "0100110000" => OUTP <= "011110100";
			WHEN "0100110001" => OUTP <= "011110100";
			WHEN "0100110010" => OUTP <= "011110100";
			WHEN "0100110011" => OUTP <= "011110011";
			WHEN "0100110100" => OUTP <= "011110011";
			WHEN "0100110101" => OUTP <= "011110010";
			WHEN "0100110110" => OUTP <= "011110010";
			WHEN "0100110111" => OUTP <= "011110001";
			WHEN "0100111000" => OUTP <= "011110001";
			WHEN "0100111001" => OUTP <= "011110000";
			WHEN "0100111010" => OUTP <= "011110000";
			WHEN "0100111011" => OUTP <= "011101111";

WHEN "0100111100" => OUTP <= "011101110";
WHEN "0100111101" => OUTP <= "011101101";
WHEN "0100111110" => OUTP <= "011101100";
WHEN "0100111111" => OUTP <= "011101100";
WHEN "0101000000" => OUTP <= "011101011";
WHEN "0101000001" => OUTP <= "011101010";
WHEN "0101000010" => OUTP <= "011101000";
WHEN "0101000011" => OUTP <= "011101000";
WHEN "0101000100" => OUTP <= "011100111";
WHEN "0101000101" => OUTP <= "011100110";
WHEN "0101000110" => OUTP <= "011100101";
WHEN "0101000111" => OUTP <= "011100100";
WHEN "0101001000" => OUTP <= "011100011";
WHEN "0101001001" => OUTP <= "011100011";
WHEN "0101001010" => OUTP <= "011100010";
WHEN "0101001011" => OUTP <= "011100001";
WHEN "0101001100" => OUTP <= "011100000";
WHEN "0101001101" => OUTP <= "011011111";
WHEN "0101001110" => OUTP <= "011011110";
WHEN "0101001111" => OUTP <= "011011101";
WHEN "0101010000" => OUTP <= "011011110";

WHEN "0101010001" => OUTP <= "011100001";
WHEN "0101010010" => OUTP <= "011100000";
WHEN "0101010011" => OUTP <= "011011111";
WHEN "0101010100" => OUTP <= "011011111";
WHEN "0101010101" => OUTP <= "011011110";
WHEN "0101010110" => OUTP <= "011011101";
WHEN "0101010111" => OUTP <= "011011100";
WHEN "0101011000" => OUTP <= "011011100";
WHEN "0101011001" => OUTP <= "011011011";
WHEN "0101011010" => OUTP <= "011011010";
WHEN "0101011011" => OUTP <= "011011001";
WHEN "0101011100" => OUTP <= "011011000";
WHEN "0101011101" => OUTP <= "011010111";
WHEN "0101011110" => OUTP <= "011010111";
WHEN "0101011111" => OUTP <= "011010110";
WHEN "0101100000" => OUTP <= "011010101";
WHEN "0101100001" => OUTP <= "011010100";
WHEN "0101100010" => OUTP <= "011010011";
WHEN "0101100011" => OUTP <= "011010010";
WHEN "0101100100" => OUTP <= "011010001";
WHEN "0101100101" => OUTP <= "011010010";

--WHEN "0000000000" => OUTP <= "000000000";





			
		





			
			WHEN OTHERS => OUTP <= "000000000";
			END CASE;
			END IF;
		END PROCESS;
END ARCHITECTURE ART;