8051核的vhdl原代码。

We present elliptic curve cryptography (ECC) coprocessor, which is dual-field processor with projective coordinator. We have implemented architecture for scalar multiplication, which is key operation in elliptic curve cryptography. Our coprocessor can be adapted both prime field and binary field, also contains a control unit with 256 bit serial and parallel operations , which provide integrated highthroughput with low power consumptions. Our scalar multiplier architecture operation is perform base on clock rate and produce better performance in term of time and area compared to similar works. We used Verilog for programming and synthesized using Xilinx Vertex II Pro devices. Simulation was done with Modelsim XE 6.1e, VLSI simulation software from Mentor Graphics Corporation especially for Xilinx devices.

1．初始状态为4个方向的红灯全亮，时间1秒。 2．东、西方向绿灯亮，南、北方向红灯亮。东、西方向通车，时间30秒。 3．东、西方向黄灯闪烁，南、北方向红灯亮。时间2秒。 4．东、西方向红灯亮，南、北方向绿灯亮。南、北方向通车，时间15秒。 5．东、西方向红灯亮，南、北方向黄灯闪烁。时间2秒。 6．返回2，继续运行。 -1. Initial state for four whole direction of the red lights lit up, a second time. 2. East and West to the green, in the south, north to the red light. West and the East to open in time for 30 seconds. 3. East and West to the blinking yellow light, in the south, north to the red light. Time 2 seconds. 4. East and West to the red light, in the south, north to the green. South and North to the opening time of 15 seconds. 5. East and West to the red light, in the south, north to the flashing yellow light. Time 2 seconds. 6. Return 2, continued to operate.

说明：  此代码是由FPGA产生SPWM波的代码，简单易懂(use FPGA to generate SPWM)

cy68013 vhdl code and usb high speed

在电子产品中，加法器是一种数字电路，执行加法的数字。在许多计算机和其他种类的处理器，加法器使用不仅在算术逻辑单元（s），而且其他地方的处理器，

本书详细介绍了VHDL硬件描述语言，希望在以后的工作中能用到-This book details the VHDL hardware description language, want to work in the future can be used to

说明：  FPGA控制AD7656和模拟开关实现36路模拟量循环采集(FPGA control AD7656 and analog switch to realize 36 channels of analog cyclic acquisition)

自己做的数码管显示的时钟 一个非常简单的FPGA时钟 用累加做的(To do their own digital display clock of the FPGA clock is a very simple to do with the cumulative)

说明：  基于Basy3的贪吃蛇小游戏，实现了相关功能。(Snake Eating Game Based on Basy3)

8路视频光端机的VHDL源码，此硬件使用以太网的SERDES 借用TBI接口传输PCM视频信号。-8-channel video PDH in VHDL source code