ADS8411

实现QPSK系统的调制解调仿真，基带成形滤波器采用升余弦滚降滤波器，将仿真的误码率与理论误码率作了比较(Implement QPSK modulation and demodulation simulation system, the baseband shaping filter using Raised Cosine filter will BER simulation were compared with the theoretical BER)

利用matlab，对偏振控制器进行仿真，最终在邦加球上进行显示(Using matlab, simulation of the polarization controller eventually be displayed on the Poincare Sphere)

UVM 基于与教程有关的验证平台的体系结构中的所有组件的验证代码。最好的入手 UVM 的家伙

用verilog编写的can总线控制器，包括设计参考历程和仿真程序，以及开发文档！(Written by verilog can bus controller, including the design reference course and simulation program, and the development of the document!)

从bt656数据流中提取出同步信号, 适合于搞fpga/cpld开发调式(bt656 internel sync to extern sync singal， bt656 internel sync to extern sync singal)

代码用两种方法设计了一个基于多相滤波的内插器，低通滤波器采用128阶凯撒窗，内插倍数32，并且给定信号范围，验证了内插器的正确性，画出了内插前后信号的频谱。(The code design the interpolator based on polyphase filter using two methods.The low pass filter is 128 order Caesar window and interpolation multiple is 32.I give the range of the signal to verify the interpolator and plot the spectrum of the signal before and after the interpolator. )

32-bit Wishbone Interface • DMA • Buffer Descriptor • Compliant with SD Host Controller Spec version 2.0 • Support SD 4-bit mode • Interrupt-on-completion of Data and Command transmission • Write/Read FIFO with variable size • Internal implementation of CRC16 for data lines and CRC7 for command line Wishbine 总线使用。完整的SD卡控制器，支持文件系统，高速传输。

nios学习资料，fpga调用外部sdram实例，值得初学者下载。(nios learning materials, fpga call external sdram instance, it is worth beginners to download.)

(1) 与微处理器可编程三态总线接口 GPIO （通用目的输入和输出端口）(2) 总线接口：1.addr_reg： 地址总线2.rd_n_reg、 wr_n_reg、 cs_n_reg： 控制总线3.数据： 三态数据总线(3) 内部寄存器：

传感器是一种检测装置，能感受到被测量的信息，并能将感受到的信息，按一定规律变换成为电信号或其他所需形式的信息输出，以满足信息的传输、处理、存储、显示、记录和控制等要求(Sensor is a kind of detection device, which can sense the measured information and transform it into electrical signal or other required information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control.)