使用 fpga 斯巴达在 xilinx 的 SD 卡

一个8位的CPU设计，用verilog语言写的，希望有用(A CPU OF 8 BITS )

说明：  在FPGA上实现CAN总线SPI接口通信，使用Verilog语言(Realize SPI interface communication of CAN bus on FPGA, using Verilog language)

IEEE1588de FPGA 程序，已测试，可直接用，方便(IEEE1588de FPGA program has been tested, can be directly used to facilitate)

说明：  LVDS De-serialization

对于已获得的脉冲包络采样序列，需测量的脉冲特征参数主要有：脉冲幅值(PA)、脉冲到达时间(TOA)和脉冲宽度(PW)。实际测量中，脉冲波形的形状是各种各样的，但其主要的参数有脉冲幅度、脉冲宽度、脉冲周期、脉冲占空比、脉冲前沿(上升时间)、脉冲后沿(下降时间)、脉冲上冲、脉冲下冲、脉冲下垂、脉冲顶部不平度等，脉冲参数的计量主要就是对这些参数进行计量。本程序包实现基于FPGA实现脉冲宽度和重复周期的测量。(Who have access to the pulse envelope sample sequence, the pulse measurement to be the main characteristic parameters are: pulse amplitude (PA), pulse time of arrival (TOA) and pulse width (PW). The actual measurement, the pulse shape is a wide variety of shapes, but its main parameters of the pulse amplitude, pulse width, pulse period, pulse duty cycle, pulse leading edge (rise time), pulse along (down time), the red pulse, pulse undershoot, pulse droop, pulse irregularities, such as at the top, the measurement of pulse parameters is mainly the measurement of these parameters. The package FPGA-based pulse width and repetition to achieve the measurement cycle.)

此代码能够使得键盘控制液晶，实时的进行书写，按下Backspace清屏(This code enables the keyboard to control the LCD, in real-time writing, press Backspace clear the screen)

按键在数字电路设计中经常用到。按键的弹跳现象是数字系统设计中存在的客观问题。按键是机械触点，当接触点断开或闭合时会产生抖动。为使每一次按键只做一次响应，就必须去除抖动。本文对按键的抖动信号进行了分析，并通过计数器的方式完成了消除抖动电路模块的设计-?

FPGA与PC端实现串口数据的收发，先从PC端接收数据，然后发回给电脑，可通过串口助手验证。(The serial port data is sent and received between the FPGA and the PC. First, the data is received from the PC, and then sent back to the computer. It can be verified by the serial port assistant.)

Implementation of Image Processing Algorithms in FPGA Hardware.

说明：  用FPGA进行等精度频率和相位差测量的程序，本程序是在EPEC6Q240C8下的程序(Carried out with the FPGA such as the frequency and phase measurement precision of the procedure, this procedure was the procedure under the EPEC6Q240C8)