Combined unit GPS clock synchronization detection unit merger GPS synchronized c...

VHDL实现SPI功能源代码 -- The SPI bus is a 3 wire bus that in effect links a serial shift -- register between the "master" and the "slave". Typically both the -- master and slave have an 8 bit shift register so the combined -- register is 16 bits. When an SPI transfer takes place, the master and -- slave shift their shift registers 8 bits and thus exchange their 8 -- bit register values.(SPI realize the functional VHDL source code The SPI bus is a 3 wire bus that in effect links a serial shift register between the )

sub opercore USB CRC5 and CRC16 Modules //// //// //// //// //// //// Author: Rudolf Usselmann //// //// rudi@asics.ws //// //// //// //// //// //// Downloaded from: http://www.opencores.org/cores/usb/(sub opercore USB CRC5 and CRC16 Modules//////////////////////// Author: Rudolf Usselmann//////// rudi@asics.ws//////////////////////// Downloaded from: http://www.opencores.org/cores/usb/)

这是我从网上找到的用vhdl语言写的sdram控制器的代码。我的邮箱：wleechina@163.com-This is what I found online vhdl language used to write the sdram controller code. My mail : wleechina@163.com

在FPGA上编写的通过SPI总线配置外部DAC芯片DAC5686的程序，通过板级调试，验证可用。程序通过状态机实现，将需要配置的寄存器值转为SPI总线的数据格式发送出去。 (Configure external DAC chip DAC5686 via SPI bus program on FPGA written by board-level debugging, verification is available. Program through the state machine, you will need to configure the register values 椠渀琀漀 SPI bus data format sent.)

主要论述了基于FPGA的末制导雷达伺服系统设计。结合末制导雷达讨论其电机控制、二阶伺服系统性能和PID校正算法,利用VHDL语言设计,实现基于FPGA的方位步进电机开环定位控制和俯仰直流电机闭环速度控制的伺服系统。结合实际应用中遇到的问题,提出了基于"反馈控制"理论的有效的补偿算法,该算法提高了伺服系统的稳定性、快速性和精度。(Mainly discusses the design of terminal guidance radar servo system based on Field Programmable Gates Array(FPGA).It includes the system’s electric machine control,second-order servo system performance and PID correction algorithm based on Virtual Hardware Description Language(VHDL) on azimuth stepping motor open loop positioning control and pitch direct current electric machine closed loop speed control of the FPGA servo system.In allusion to some factual problems during its application,presents corresponding effective solutions based on traditional control theory "Feedback Control".The fact proves that these methods can greatly improve the stability,speediness and precision of the original servo system.Additionally,a basic algorithm which can be realized in a terminal guidance radar servo system is given)

用FPGA实现的模糊控制器 部分用VHDL编写的源程序-Using FPGA to achieve some of the fuzzy controller using VHDL source code prepared

MP3解码的ASIC全部过程，包换含c和vhdl代码，样例。(MP3 decoding ASIC whole process, shifting with c and vhdl code, sample.)

BINARY PHASE SHIFT KEYING

switching the lights debouncing , toggle

用于uart 的通信的vhdl代码，可以直接使用