基于FPGA的13位Barker码的实现

利用FPGA控制VGA显示器显示字符汉字的程序，里面有注释。(VGA display with FPGA control procedures Kanji characters, there are comments.)

在ISE下开发的通用串口通信程序，使用的编程语言是Verilog HDL语言，采用了fifo，已经进行实验验证通过，适合Verilog初学者,欢迎交流学习。

ADS7809是Burr-Brown公司推出的高精度AD采集芯片。它采用5V单电源供电,内含16位 逐次逼近寄存器,采样精度高,功耗小。 用Verilog实现其配置(ADS7809 is a Burr-Brown Introduces High Precision AD capture chip. It uses a single 5V supply, with 16-bit successive approximation register, sampling and high precision, low power consumption. To achieve its configuration with the Verilog)

资源描述关于PI数字控制的基本思想，和具体实现。。

针对京微雅阁的CME300 FPGA教程，里面有几个例程，并附有源代码，初学者可尽快入门。(For Beijing micro Accord CME300 FPGA tutorial, there are a few routines, with source code, beginners can start as soon as possible.)

说明：  FFT 1024 point, in 10 state

EDA 正弦信号发生器：正弦信号发生器的结构有四部分组成，如图1所示。20MHZ经锁相环PLL20输出一路倍频的32MHZ片内时钟,16位计数器或分频器CNT6，6位计数器或地址发生器CN6，正弦波数据存储器data_rom。另外还需D/A0832（图中未画出）将数字信号转化为模拟信号。此设计中利用锁相环PLL20输入频率为20MHZ的时钟，输出一路分频的频率为32MHZ的片内时钟，与直接来自外部的时钟相比，这种片内时钟可以减少时钟延时和时钟变形，以减少片外干扰 还可以改善时钟的建立时间和保持时间，是系统稳定工作的保证。CNT6用来将32MHZ进行8分频得到4096HZ的频率提供给CN6与data_rom时钟信号。由CLK端输入20MHZ的时钟信号，在DOUT端就可输出稳定的正弦信号。(Sine signal generator has the structure of four parts, as shown in figure 1 below. The 20 MHZ phase lock loop PLL20 output all the way of frequency doubled within 32 MHZ slice clock, 16 counter or prescaler CNT6, six counter or address generator CN6, sine data storage data_rom. In addition to D/A0832 (shown in not draw) will digital signal into analog signals. This design using the phase lock loop PLL20 input frequency for 20 MHZ clock, the output of the frequency of all points frequency of 32 pieces (MHZ clock, and comes directly from the external clock, compared to this piece of clock can reduce the clock in delay and clock deformation, to reduce the interference of Can also improve the establishment of the clock time and keep time, is the system stability of assurance. CNT6 used to will and to 8 MHZ get 4096 HZ dividing the frequency to provide CN6 and data_rom clock signal. The input by CLK 20 MHZ clock signal, in DOUT end can output stable sine signals. )

FPU (Floating Point Unit) is very useful in the moden ASIC and SOC designs. This module has been verified by FPGA and EDA env. But if you want to use it in a real project, please verify it with some formal method. 

通过 ICAP 回读 FPGA内部state register 的状态值。通过状态机控制ICAP，然后写入命令，读取数据，等待三个周期后出现数据。过程中CSIB和RDWRB有一个时序关系，还需要对ICAP输入命令进行bit swap

应用背景4联想多级cahe用Verilog。可以跑在Xilinx软件客户端模拟器。4路联想多级cahe用Verilog。可以跑在Xilinx软件客户端模拟器。4路联想多级cahe用Verilog。可以跑在Xilinx软件客户端模拟器。4路联想多级cahe用Verilog。可以跑在Xilinx软件客户端模拟器。4路联想多级cahe用Verilog。可以跑在Xilinx软件客户端模拟器。4路联想多级cahe用Verilog。可以跑在Xilinx软件客户端模拟器。关键技术你好这个代码是使用Xilinx就跑..请查看以下软件中的这一观点。