VHDL digital system design and engineering practice 4, including the principles,...

本文提供了一种CMOS控制器，使Nios-II可以利用CMOS控制器控制CMOS，并允许在CMOS图像上传送SDRAM。在DE2-70平台上运行

PI控制器的算法及源码，迅速掌握FPGA的VHDL算法实现！(Algorithm and source code of PI controller, quickly grasp the implementation of VHDL algorithm in FPGA!)

软件式的VHDL学习工具，能帮助你更好的掌握VHDL的应用-VHDL-based software, learning tools, can help you better grasp the application of VHDL

宽带波束形成，设计FIR滤波器系数。带宽为500Hz--700Hz,采样率为3000Hz，对白噪声序列进行滤波，即得到有限带宽的宽带时域信号(Broadband beamforming design FIR filter coefficients. Bandwidth of 500Hz- 700Hz, sampling rate of 3000Hz, filtered white noise sequence, ie limited bandwidth broadband time domain signal)

FPGA与DAC芯片的SPI接口驱动，实现串行数据的传输。(Realizing the communication between FPGA and DA chip)

高斯最小频移键控（Gaussian Filtered Minimum Shift Keying），这是GSM系统采用的调制方式。数字调制解调技术是数字蜂窝移动通信系统空中接口的重要组成部分。GMSK调制是在MSK（最小频移键控）调制器之前插入高斯低通预调制滤波器这样一种调制方式。GMSK提高了数字移动通信的频谱利用率和通信质量。(Gauss Filtered Minimum Shift Keying is a modulation method used in GSM system. Digital modem technology is an important part of air interface of digital cellular mobile communication system. GMSK modulation is a method of inserting a Gaussian low-pass pre-modulation filter before the MSK (minimum frequency shift keying) modulator. GMSK improves the spectrum utilization and communication quality of digital mobile communication.)

带有电网电压反馈的单相PWM整流器反馈，输出的波形很好，适合初学者学习观摩(With power grid voltage feedback single-phase PWM rectifier feedback, the output waveform is very good, suitable for beginners learning view )

VHDL implementation using mouse and monitor

用VHDL语言编写，在MAXPLUS2下调试通过-VHDL language, debug through MAXPLUS2