Question

用VHDL编写DAC900E正弦波程序

我买了这个芯片，只给了锯齿波的程序。。还有其他方波，正弦波。。等等。。那个信号处理主程序我不会写啊。。来大神帮帮我~
library IEEE;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;
use ieee.std_logic_unsigned.all;
--实体
entity da1_test is
port (
--时钟信号
clk:in STD_LOGIC ; --系统主时钟，可直接接晶振，与FPGA全局时钟相连
------------------------------------------------
--DA信号
da1_clk:out std_logic; --给DA的时钟
da1_d:out std_logic_vector(13 downto 0) --给DA的数据,偏码
);
end da1_test;
------------------------------------------------
--构造体
architecture topdesign_arch of da1_test is
------------------------------------------------
signal count_clk:std_logic_vector(13 downto 0);
------------------------------------------------
--主程序
begin
-------------------------------------------------
--da1_clk <=not clk; --给DA的时钟
da1_clk <=not count_clk(0); --给DA的时钟
-------------------------------------------------
--信号处理主程序
dsp:process(clk)
begin
if clk'event and clk='1' then
-------------------------------------------------
count_clk<=count_clk+1;
da1_d<=count_clk(13 downto 0);
-------------------------------------------------
end if ;
-------------------------------------------------
end process;
-------------------------------------------------
end topdesign_arch;
这个是锯齿波的程序。给你参考。。。没多少分，请大家帮个忙~~
只给了一个锯齿波的程序。。我想正弦和方波的程序~~~谢谢~！

Answer 1

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追问

你这个是VHDL？？？不是吧？