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phase_test
VHDL,简易音频数字相位表的设计与实现 数字相位测量仪在工业领域中经常用到的一般测量工具，主要应用与同频率正弦信号间的相位差的测量显示。
本系统采用FPGA实现测量的核心部分，主要由数字鉴相、累加计数器、控制器以及寄存与显示译码电路组成。该系统硬件电路简单，整个系统采用硬件描述语言VHDL作为系统内部硬件结构的描述手段，在XILINX公司的ISE9.1的软件支持下完成。可以对20Hz~20kHz频率范围内的音频信号进行采样鉴相处理，并将数据传回FPGA进行相位差计数累加、测量运算，最后送显示译码电路显示，测相范围为 ，相位测量误差 < 。
经测试结果验证，本系统充分利用FPGA对数据的高速处理能力，是系统设计高效、可靠，处理速度快，稳定性高，易于实现。
(VHDL, simple audio digital phase Table Design and Implementation of the digital phase meter general measurement tools are often used in the industrial field, the measurement of the phase difference between the main application with the same frequency sinusoidal signal. The system uses the FPGA implementation of the core part of the measurement, mainly by the digital phase, cumulative counter, the decoding circuit of the controller as well as storage and display. The system hardware circuit is simple, and the entire system using hardware description language VHDL system means a description of the internal hardware structure, completed in the XILINX company ISE9.1 software support. The audio signal in the frequency range of 20Hz ~ 20kHz sampling KAM-phase process, and the data returned FPGA retardation counted accumulation measuring operation, and finally sent to the decoding circuit, the scope of the measurement phase, the phase measurement error < . The test results verify the full u)
- 2012-09-24 10:11:57下载
- 积分：1
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这是用verilog语言实现的1024点ff程序t
这是用verilog语言实现的1024点ff程序t-This is achieved using Verilog 1024 language ff procedures point t
- 2022-08-03 20:30:05下载
- 积分：1
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FPGA_PSK
可以实现2PSK的信号调制，已经过Modelsim波形仿真(It can realize 2PSK signal modulation and has been simulated by Modelsim waveform.)
- 2019-05-09 16:29:17下载
- 积分：1
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xilinx-timing-constrains
ISE时序约束笔记——Global Timing Constraints，这个文档中详细介绍了如何使用ISE中约束工具和原理，对fpga水平提高有很大帮助(In this file , global timing constraints is introduced very clearly. It can really helps)
- 2012-04-16 11:08:45下载
- 积分：1
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rfid new code
说明： In the data management system a significant role of the Data link layer is to convert the unreliable physical link between reader and tag into a reliable link. Therefore, the RFID system employs the Cyclic Redundancy Check (CRC) as an error detection scheme. In addition for reader to communicate with the multiple tags, an anti-collision technique is required. The technique is to coordinate the communication between the reader and the tags. The common deterministic anti-collision techniques are based on the Tree algorithm such as the Binary Tree and the Query Tree algorithms.
- 2019-04-30 16:54:27下载
- 积分：1
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卡内基梅陇大学verilog课程讲义-unlocked
说明： verilog讲义
卡内基梅陇大学verilog课程讲义-unlocked
卡内基梅陇大学verilog课程讲义-unlocked(Verilog Course Lectures at Carnegie Mellon, University Verilog Course Lectures at Carnegie Mellon University Verilog Course Lectures at Carnegie Mellon University)
- 2020-06-20 18:00:02下载
- 积分：1
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关于FPGA的书籍，介绍了大量的Verilog实例，对初学者很有帮助
关于FPGA的书籍，介绍了大量的Verilog实例，对初学者很有帮助-Books on the FPGA, introduced a large number of Verilog examples very helpful for beginners
- 2022-11-11 12:40:04下载
- 积分：1
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dds
基于单片机的DDS信号发生器，具有DDS思想的单片机编程。。。(Sunplus based DDS signal generator with DDS thinking microcontrollers. . .)
- 2011-09-02 15:39:02下载
- 积分：1
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fifo
fifo的代码,经过测试可以使用，很有用处，可以放心使用(a fifo module,the code has been tested and it is usefull)
- 2010-03-02 22:03:30下载
- 积分：1
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MVB_test
此功能是实现曼彻斯特编码的Verilog代码，经过在xilinx sp6上实际运行证实可行。(This function is to achieve the Manchester code Verilog code, through the Xilinx SP6 actual operation proved.)
- 2021-01-03 17:48:56下载
- 积分：1
