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6
说明： 4位数码扫描显示电路,我们控制一个七段LED需要8个输出端口；如果要输出四位十进制数，就需要32的输出端口，这将占用大量的端口资源。采用串行扫描显示，我们只需要8+4共12个端口即可。其原理是：用一个四位的输出端控制，某一时刻只选中其中的一个LED（输出为‘1’表示选中），八位的输出端将该LED所需要显示的值输出；然后四位的输出端值改变，选中下一个LED。这样依次类推。如果选择的频率很快，达到50Hz以上，由于人眼的视觉暂留效应，看起来就像4个LED同时显示。
设计一个程序，输入四个一位十进制数，用4个LED显示出来。CLK采用频率可调信号发生器，逐渐改变频率，观察扫描频率的改变对输出效果的影响。
输入：连续脉冲，逻辑开关；输出：七段LED。
(4 digital scanning display circuit, we need to control a seven-segment LED output port 8 If you want to output four decimal numbers, you need the output port 32, which will take up a lot of ports. Serial scans showed, we need only 8 of 12 ports can be+4. The principle is: the output of four with a control, a time to select only one LED (output 1 is selected), 8 output of the LED by the need to show the value of the output then The output value of the four changes, select the next LED. This and so on. If you select the frequency rapidly, reaching more than 50Hz, as the human eye s persistence of vision effect, looks like a 4 LED display simultaneously.
Design a program, enter a decimal number four, with four LED display. CLK signal generator with adjustable frequency, gradually changing the frequency of observed changes in scan frequency effect on the output.
Input: Continuous pulse, logic switches output: seven-segment LED.)
- 2010-06-21 22:07:59下载
- 积分：1
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can-lite-vhdl-master
说明： CAN VHDL Code. Behavioral implementation of CAN bus interface.
- 2021-01-19 21:48:41下载
- 积分：1
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spwm
关于SPWM调制设计VHDL代码
关于SPWM调制设计VHDL代码(SPWM modulation on the design of VHDL code design on the VHDL code modulation SPWM)
- 2021-03-16 09:19:22下载
- 积分：1
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FM radio decoder and controller VHDL, Xilinx provide. I thank other.
FM收音机的解码及控制器VHDL语言实现，Xilinx提供的．别谢我．-FM radio decoder and controller VHDL, Xilinx provide. I thank other.
- 2022-10-05 04:50:03下载
- 积分：1
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Collected their own routines VHDL code, suitable for beginners to learn, I hope...
自己收集的VHDL例程代码，适合初学者学习用，希望能给大家带来帮助。-Collected their own routines VHDL code, suitable for beginners to learn, I hope we can help.
- 2022-07-02 04:49:52下载
- 积分：1
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ldpc_decoder_802_3an_latest.tar
LDPC encoder and decoder, very simple
- 2015-03-10 05:35:38下载
- 积分：1
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04_led_test
说明： FPGA控制外边led，并实现跑马灯等多种效果，用户可以自行控制(FPGA control outside led)
- 2020-06-16 09:40:02下载
- 积分：1
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VGAPPS2PCORDIC
FPGA课程设计源码，整合VGA,PS2键盘，CORDIC三角函数算法，在basys2平台上使用完全可行。(FPGA curriculum design source, integrated VGA, PS2 keyboard, CORDIC trigonometric algorithm, used on basys2 platform entirely feasible.)
- 2015-10-12 20:56:05下载
- 积分：1
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四位除法器的VHDL源程序
四位除法器的VHDL源程序-four division of VHDL source
- 2022-01-27 20:04:11下载
- 积分：1
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基于fpga的出租车计费系统，采用自顶向下的设计方法
基于fpga的出租车计费系统，采用自顶向下的设计方法-FPGA-based billing system of a taxi, using top-down design methodology
- 2022-07-21 01:07:13下载
- 积分：1
