VHDL 的4*4键盘代码

用Bresenham算法在FPGA上实现小数分频器，verilog编写，计算机图形法-Bresenham algorithm used in the FPGA to achieve a small number of crossovers, verilog preparation, computer graphics method

Image Embedded VHDL Code by using watermarking technique

8051参考设计，与其他8051的免费IP相比，文档相对较全，Oregano System 提供-8051 reference design, and other free IP in 8051 compared to relatively entire document, Oregano System for

这是我毕业设计做的一个SVPWM同步永磁交流电机的控制系统，里面除了一个SVPWM的驱动算法之外，还有一个步进电机的控制器，以及基于QUARTUS7.2的NIOS II控制核心，通过PC的串口可以控制同步永磁交流电机和步进电机进行精确的定位。该系统较复杂，运用的知识也比较多，在SVPWM算法，PID算法，步进电机控制方面，NIOS II的串口编程等都有值得参考的地方。最好使用QUARTUS7.2编译，目标芯片是选用EP1C6Q240-This is my graduation project SVPWM make a permanent magnet AC synchronous motor control system, which apart from a driver SVPWM algorithm, there is a stepper motor controller, as well as QUARTUS7.2 based on the NIOS II control core, through PC serial port can be controlled permanent magnet AC synchronous motor and stepper motor for accurate positioning. The system is more complicated, the use of more knowledge, in the SVPWM algorithm, PID algorithm, stepper motor control, NIOS II serial programming, such as places are worth considering. QUARTUS7.2 compile the best use of the target chip is optional EP1C6Q240

本源代码是RS（31,19）编码器的顶端实现程序和测试程序，此程序可以验证编码器工作与否。此代码，已在ModelSim验证通过。并附上测试时所产生的结果图像。(Source code is RS (31,19) encoder to achieve the top programs and testing procedures, this program can verify the encoder to work or not. This code has been verified in ModelSim. Together with the result when the test images.)

自动售卖机的设计，有源代码，希望对大家有用-Vending machine design, source code, in the hope that useful

说明：  Matlab - to hdl code for square root

无SDRAM的PCI采集,给出PCI采集的FPGA程序，桥芯片也为PLX9054，已验证通过(No SDRAM, PCI capture, given FPGA PCI acquisition program, bridge chips for PLX9054, has been verified by)

万能频率器，可以修改其中的参数，可是实现任意的分频！很方便！-Universal frequency, you can modify one of the parameters, but any implementation of the sub-band! Very convenient!

一个2位的BCD码十进制加法计数器电路，输入为时钟信号CLK，进位 输入信号CIN，每个BCD码十进制加法计数器的输出信号为D、C、B、A和进位输出信号COUT，输入时钟信号CLK用固定时钟，进位输入信号CIN. (A 2-bit BCD code decimal adder counter circuit input as the clock signal CLK, a carry input signal CIN, D, C, B, A, and the carry output signal COUT, each BCD code decimal adder counter' s output signal, the input clock signal CLK Fixed clock, binary input signal CIN.)