VerilogHDL流水灯设计.doc

1、大规模数字逻辑题目： 流水灯控制 专 业 电子信息科学与技术 班 级 学 号 学生姓名 设计时间 教师评分 2013年 12 月 10 日目 录一、概述1二、设计目的1三、设计内容1四、设计原理图1五、引脚分配情况2六、源程序代码2VerilogHDL 程序：2分频器部分：5七、心得体会6八、参考文献6一、概述流水灯是一串按一定的规律像流水一样连续闪亮，流水灯控制是可编程控制器的一个应用，其控制思想在工业控制技术领域也同样适用。流水灯控制可用多种方法实现，但对现代可编程控制器而言，基于EDA技术的流水灯设计也是很普遍的。二、设计目的1、熟悉利用Quartus II 开发数字电路的基本流程和Qu

2、artus II 软件的相关操作。2、掌握基本的设计思路，软件环境参数配置，仿真，管脚分配，利用JTAG/AS进行下载等基本操作。3、了解VerilogHDL 语言设计或原理图设计方法。4、通过本此设计，了解流水灯的工作原理，掌握其逻辑功能及设计方法。三、设计内容1、用VerilogHDL语言设计一个流水灯，输入0的时候ledled7，1Hz正向流水3次，然后全亮；然后2Hz逆向流水5次全亮；循环。输入1的时候led0led7,0.5Hz奇数流水2次，全亮，1Hz偶数流水4次，全亮，然后循环。2、用QuartusII 软件进行编译，仿真，下载到实验平台进行验证。四、设计原理图 en为可调输入，

3、输出为8位数据，为流水灯实验，试用8个LED指示灯来表示，具体引脚分配见下。五、引脚分配情况六、源程序代码VerilogHDL 程序：module LED( clk,led,en ); input clk; input en; output 7:0led;/ 输出端口定义为寄存器型 reg 7:0 led; reg 8:0 state1; reg 8:0 state2; always (posedge clk )/ always语句，表示每当CLK的上升沿到来时，完成begin-end之间语句的操作 if(!en) begin state2 = 0; state1 = state1 + 1;

4、/ one clk,one state case(state1) 1,2: led = 8b00000001; /1-7 zhengxu,3bian 3,4: led = 8b00000010; 5,6: led = 8b00000100; 7,8: led = 8b00001000; 9,10: led = 8b00010000; 11,12: led = 8b00100000; 13,14: led = 8b01000000; 15,16: led = 8b10000000; 17,18: led = 8b00000001; 19,20: led = 8b00000010; 21,22:

5、led = 8b00000100; 23,24: led = 8b00001000; 25,26: led = 8b00010000; 27,28: led = 8b00100000; 29,30: led = 8b01000000; 31,32: led = 8b10000000; 33,34: led = 8b00000001; 35,36: led = 8b00000010; 37,38: led = 8b00000100; 39,40: led = 8b00001000; 41,42: led = 8b00010000; 43,44: led = 8b00100000; 45,46:

6、led = 8b01000000; 47,48: led = 8b10000000; 49: led = 8b11111111; /quanliang 50: led = 8b10000000; 51: led = 8b01000000; 52: led = 8b00100000; 53: led = 8b00010000; 54: led = 8b00001000; 55: led = 8b00000100; 56: led = 8b00000010; 57: led = 8b00000001; 58: led = 8b10000000; 59: led = 8b01000000; 60:

7、led = 8b00100000; 61: led = 8b00010000; 62: led = 8b00001000; 63: led = 8b00000100; 64: led = 8b00000010; 65: led = 8b00000001; 66: led = 8b10000000; 67: led = 8b01000000; 68: led = 8b00100000; 69: led = 8b00010000; 70: led = 8b00001000; 71: led = 8b00000100; 72: led = 8b00000010; 73: led = 8b000000

8、01; 74: led = 8b10000000; 75: led = 8b01000000; 76: led = 8b00100000; 77: led = 8b00010000; 78: led = 8b00001000; 79: led = 8b00000100; 80: led = 8b00000010; 81: led = 8b00000001; 82: led = 8b10000000; 83: led = 8b01000000; 84: led = 8b00100000; 85: led = 8b00010000; 86: led = 8b00001000; 87: led = 8b00000100; 88: led = 8b00000010; 89: led = 8b00000001; 90: led = 8b11111111; 91: begin led = 8b00000000;state1=0;end default: state1 = 0; endcase end else begin state1 = 0;