多功能波形发生器VHDL程序与仿真

文章摘要： when 7 => lcd(7 downto 1)<="0001111"; when 8 => lcd(7 downto 1)<="0000000"; when 9 => lcd(7 downto 1)<="0000100";when others => lcd(7 downto 1)<="0000001";end case;end process;ym:process(clk) --正弦波在一个周期内时域上的64

多功能波形发生器VHDL程序与仿真,标签：fpga是什么,fpga教程,http://www.88dzw.com

    when 7 => lcd(7 downto 1)<="0001111";

    when 8 => lcd(7 downto 1)<="0000000";

    when 9 => lcd(7 downto 1)<="0000100";

when others => lcd(7 downto 1)<="0000001";

end case;

end process;

ym:process(clk)                  --正弦波在一个周期内时域上的64个采样点的波形数据

begin

if rising_edge(clk) then

case f is

when "00000000"=> d<="11111111"  ; when "00000001"=> d<="11111110"  ;

when "00000010"=> d<="11111100"  ;when "00000011"=> d<="11111001"  ;

when "00000100"=> d<="11110101"  ; when "00000101"=> d<="11101111"  ;

when "00000110"=> d<="11101001"  ;when "00000111"=> d<="11100001"  ;

when "00001000"=> d<="11011001"  ; when "00001001"=> d<="11001111"  ;

when "00001010"=> d<="11000101"  ;when "00001011"=> d<="10111010"  ;

when "00001100"=> d<="10101110"  ; when "00001101"=> d<="10100010"  ;

when "00001110"=> d<="10010110"  ;when "00001111"=> d<="10001001"  ;

when "00010000"=> d<="01111100"  ; when "00010001"=> d<="01110000"  ;

when "00010010"=> d<="01100011"  ;when "00010011"=> d<="01010111"  ;

when "00010100"=> d<="01001011"  ; when "00010101"=> d<="01000000"  ;

when "00010110"=> d<="00110101"  ;when "00010111"=> d<="00101011"  ;

when "00011000"=> d<="00100010"  ; when "00011001"=> d<="00011010"  ;

when "00011010"=> d<="00010011"  ;when "00011011"=> d<="00001101"  ;

when "00011100"=> d<="00001000"  ; when "00011101"=> d<="00000100"  ;

when "00011110"=> d<="00000001"  ;when "00011111"=> d<="00000000"  ;

when "00100000"=> d<="00000000"  ; when "00100001"=> d<="00000001"  ;

when "00100010"=> d<="00000100"  ;when "00100011"=> d<="00001000"  ;

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