基于VHDL语言的EDA实验报告(附源码).docx

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1、EDA实验报告——多功能电子钟姓名:张红义班级：10级电科五班学号：指导老师：贾树恒电子钟包括：主控模块，计时模块，闹钟模块，辅控模块，显示模块，蜂鸣器模块，分频器模块。1．主控模块：主要功能：控制整个系统，输出现在的状态，以及按键信息。源代码:libraryieee;useieee.std_logic_1164.all;useieee.std_logic_arith.all;useieee.std_logic_unsigned.all;entitymcisport(functionswitch,k,set,lightkey:instd_logic;chose2

2、1,setout:outstd_logic;lightswitch:bufferstd_logic;modeout,kmodeout:outstd_logic_vector(1downto0);setcs,setcm,setch,setas,setam,setah:outstd_logic);endmc;architectureworkofmcissignalmode,kmode:std_logic_vector(1downto0);signallight,chose21buf:std_logic;signalsetcount:std_logic_vector(

3、5downto0);beginprocess(functionswitch,k,set,lightkey)beginiffunctionswitch'eventandfunctionswitch='1'thenmode<=mode+'1';endif;iflightkey'eventandlightkey='1'thenlightswitch<=notlightswitch;endif;ifmode="01"thenchose21buf<='0';elsechose21buf<='1';endif;ifk'eventandk='1'thenifmode="01"

4、ormode="11"thenkmode<=kmode+'1';endif;endif;ifset='1'thenifmode="01"thenifkmode="01"thensetcount<="";elsifkmode="10"thensetcount<="";elsifkmode="11"thensetcount<="";elsesetcount<="";endif;elsifmode="11"thenifkmode="01"thensetcount<="";elsifkmode="10"thensetcount<="";elsifkmode="11"th

5、ensetcount<="";elsesetcount<="";endif;endif;endif;ifset='0'thensetcount<="00000”;endif;setout<=set;modeout<=mode;kmodeout<=kmode;chose21<=chose21buf;setcs<=setcount(0);setcm<=setcount(1);setch<=setcount(2);setas<=setcount(3);setam<=setcount(4);setah<=setcount(5);endprocess;endwork;仿真

6、波形：2.计时模块主要功能：记录时间，正常计时。60进制libraryieee;useieee.std_logic_1164.all;useieee.std_logic_arith.all;useieee.std_logic_unsigned.all;entitycount60isport(clk,clr:instd_logic;co:outstd_logic;outh:outstd_logic_vector(7downto4);outl:outstd_logic_vector(3downto0));endcount60;architectureworkofco

7、unt60issignalbufh:std_logic_vector(7downto4);signalbufl:std_logic_vector(3downto0);beginprocess(clk)beginifclr='0'thenbufh<="0000";bufl<="0000";elsif(clk'eventandclk='1')thenif(bufh="0101"andbufl="1001")thenco<='1';bufh<="0000";bufl<="0000";elsif(bufl="1001")thenbufl<="0000";bufh<=bu

8、fh+1;elsebuf