山东大学电子设计自动化(EDA)硬件实验-实验4 七段显示译码器设计

一:实验要求:

(实验板上的数码管是共阳极的，低电平时点亮。)
输入：波动开关，从“0000”至“1111”变化；
输出：用数码管显示(0,1,…9,A,b,C,d,E,F)。

二:  实验仪器与器材

1.EDA 开发软件

2.微机

3.实验开发系统

4.打印机

5.其他器件与材料

三:实验内容

1. 源文件:

library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;
use ieee.std_logic_unsigned.all;

entity yimaguan is
	port(a:in std_logic_vector(3 downto 0);
	led:out std_logic_vector(6 downto 0));
end;

architecture info of yimaguan is
begin 
	process(a)
	begin
	case a is
	when "0000"=>led<="1000000";
	when "0001"=>led<="1111001";
	when "0010"=>led<="0100100";
	when "0011"=>led<="0110000";
	when "0100"=>led<="0011001";
	when "0101"=>led<="0010010";
	when "0110"=>led<="0000010";
	when "0111"=>led<="1111000";
	when "1000"=>led<="0000000";
	when "1001"=>led<="0010000";
	
	when "1010"=>led<="0001000";
	when "1011"=>led<="0000011";
	when "1100"=>led<="1000110";
	when "1101"=>led<="0100001";
	when "1110"=>led<="0000110";
	when "1111"=>led<="0001110";
	
	
	end case;
	end process;
end;

2.编译情况:

3.引脚配置

4.仿真波形图: