synchronous serial data transmission circuit SSDT the basic function is to conve...

本程序实现数字钟系统，有整点报时功能，可显示切换年月日，定时功能(Digital clock system of this program, with the whole point timekeeping function, can display the date, the timing function)

verilog coding for butterworth filter with cut off frequency with 500hz

1024点FFT快速傅立叶变换，包含说明文档和VHDL源代码，16位输入/输出，带DMA功能，xilinx的ip-1024-point FFT fast Fourier transform, and includes documentation, VHDL source code, 16 input/output, with DMA function, the ip xilinx

用Verilog编写的以太网控制器，可以使用，里面是全部verilog源码(Ethernet controller based on Verilog, can be used directly, all verilog files)

detection of the following sequence ‘10110110’in VHDL

FPGA实现FFT算法的源代码及工程文件，此工程为ISE工程项目。有详细的说明，可以运行。(FPGA Implementation of FFT algorithm source code and project files, this works for the ISE project. There are detailed instructions, you can run.)

两个例子提醒我们如果我们要使用锁存器则不需要任何操作，如果我们想避免锁存器的话，我们要让这个元器件的每一个可能条件赋予一个值-signal or variable "" may not be assigned a new value in every possible path through the Process Statement

在利用FPGA的并行处理能力应对高速数据和去做复杂的数据处理时，对一些较为复杂或者重复性工作模块多的情况下，算法资源就需要进行预评估。有效的资源预评估不仅可以在芯片选型上有益，还可以对程序有较详细的估计，在硬件不变的前提下能够选择更好的算法优化。本文着重在Harris算法在FPGA的实现以及在移植之前对其占用的FPGA资源进行预评估。(Response to high-speed data and do complex data processing in the FPGA parallel processing capabilities, to cope with some of the more complex or repetitive tasks module，it is necessary to pre-assessment algorithm resources. Resources pre-assessment can not only be useful in the chip selection, but also be a more detailed estimate of the program to be able to choose a better algorithm optimization in the same premise hardware. This article focuses on the pre-assessment in the Harris algorithm in the FPGA implementation and its FPGA resources occupied prior to transplantation.)

verilog 代码实现串并转换，有延迟(Verilog code and string conversion, delay)

四位全家器的VHDL语言模块，已经在ISE8.1上经过测试通过-family of four VHDL modules, has been tested on ISE8.1 through