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song
- module song(clk,key,song_out,led) input [7:0] key input clk output song_out output [7:0] led reg song_reg reg [21:0] count reg [19:0] delay reg [7:0] key_reg always @(posedge clk) begin count=count+1 if((count==de
frequencyZDC
- 有效位为四位十进制数的数字频率计,实验板上有一个标准时钟发生电路,为计数闸门控制电路提供一个标准8Hz信号,计数闸门控制电路控制4位十进制计数器从第三秒开始计数一秒钟,计数的个数就是待测输入信号的频率。第四秒停止计数,其中前7/8秒保持计数值,后1/8秒计数器复位。然后再计数一秒,保持计数值一秒,如此循环。-Digital frequency meter
f_1000
- 8hz频率带动1秒,同步频率计,有用的通信工程系课本一样。-8hz 1 second driving frequency, synchronous frequency, as a useful communication engineering textbooks.
F10000_0000
- 8hz频率带动1秒,异步频率计,有用的通信工程系课本一样。 -8hz frequency drive 1 second, asynchronous frequency, as a useful communication engineering textbooks.
huxi
- 基于VHDL设计四个频率不同的呼吸灯,呼吸频率分别为 0.1Hz,0.2Hz,0.4Hz,0.8Hz 呼吸灯原理:利用PWM波控制led的亮度,的 原始代码 quartus软件亲测可用。-VHDL-based design in four different frequencies breathing light, breathing frequency was 0.1Hz, 0.2Hz, 0.4Hz, 0.8Hz breathing light principle: the use PWM