基于Nexys3的频谱仪设计VHDL可上板

本设计实现：基于Nexys3的频谱分析仪，应用ISE的FFT核与双RAM，VGA显示，AD为ADS830

软件平台：ISE14.7
硬件平台：Nexys3
开发语言：VHDL

工程截图：

AD，FFT，cordic代码：

---

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use ieee.std_logic_signed.all;
use ieee.std_logic_arith.all;

– Uncomment the following library declaration if using
– arithmetic functions with Signed or Unsigned values
–use IEEE.NUMERIC_STD.ALL;

– Uncomment the following library declaration if instantiating
– any Xilinx primitives in this code.
–library UNISIM;
–use UNISIM.VComponents.all;

entity ff