FPGA开发程序

说明：  这里是apb总线设计代码。这个源程序是基于verilog语言设计的(Here is the APB bus design code. This source program is designed based on Verilog language)

VerilogHDL_advanced_digital_design_code_Ch6 Verilog HDL 高级数字设计源码ch6(Advanced Digital Design VerilogHDL_advanced_digital_design_code_Ch6Verilog HDL source CH6)

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)

说明：  qpsk的fpga实现，包含调制和解调部分，使用verilog语言(FPGA implementation of QPSK)

uart_tr 异步串口通信主机 使用verilog HDL语言编写(uart_tr the host of the uart )

A Microchip PIC-Compatible RISC CPU IP Core Design and Verilog Implementation 含Verilog源代码以及设计文档 本文件夹里面的是实现pic10 CPU的全部verilog代码以及相应的测试脚本代码，当然有一些模块是在quartus中直接编辑波形测试的，所以没有响应的测试脚本文件。 tri_state_port的测试还未完成，test_pic10_status_reg.vt和test_pic10_tri_state_port2.vt都没有完成测试任务 其中有三篇文档： PIC10_RISC_Design.pdf:原文（verilog代码基本都来自原文，对一部分进行了改进），这篇文章写得非常好 PIC10F200_单片机IP核的实现.pdf:对上面的文章结合自己的实验过程进行了翻译和改写，给大家参考 PIC10F:PIC10系列单片机的手册

AD9910实现脉冲内线性调频信号，仅供参考(AD9910 to achieve linear FM pulse signal, for reference only)

说明：  利用Verilog语言实现PID增量式控制，输出占空比(Using Verilog language to realize PID incremental control and output duty cycle)

CORDIC(Coordinate Rotation Digital Computer)算法即坐标旋转数字计算方法。 CORDIC算法,能够通过平移和累加快速实现基础的数学函数,包括三角函数,开方,指数,对数,平方根等函数。(CORDIC (Coordinate Rotation Digital Computer) algorithm for the coordinate rotation digital calculation. CORDIC algorithm can be achieved through the rapid translation and accumulation based on mathematical functions, including trigonometric, square root, exponential, logarithmic, square root and other functions.)

红外接收处理，根据外部波形记录波形的高低电平时间，从而得到波形数据。(Infrared receiver processing, according to the external waveform waveform record high and low times, resulting waveform data.)