基于FPGA的hdb3编码实现

4 bit ROM for Quartus

基于PCI的数字信号发生器 关键词：PCI总线，PCI9054，FPGA，卡尔曼滤波器(PCI-based digital signal generator Keywords: PCI bus, PCI9054, FPGA, Kalman filter)

ASK,FSK,PSK,DPSK调制解调的详细仿真代码(ASK, FSK, PSK, DPSK modulation and demodulation detailed simulation code)

一个液晶灯的小程序。我没有写信。我只负责调试。适用于ACEXEP1K30QC208-3。我运行模拟器，标记连接销。我接下来在电路板上试了试，没有问题。实验中使用的板兄弟把CLK1的TESTOUT3改成了合唱或0。新人在线帮助是每个人的责任。

ADC0809 VHDL控制程序,基于VHDL语言，实现对ADC0809控制.-ADC0809 VHDL control procedures, based on the VHDL language, to achieve control of ADC0809.

本代码介绍了使用VHDL开发FPGA的一般流程，最终采用了一种基于FPGA的数字频率的实现方法。该设计采用硬件描述语言VHDL，在软件开发平台ISE上完成，可以在较高速时钟频率（100MHz）下正常工作。该设计的频率计能准确的测量频率在1Hz到100MHz之间的信号。使用ModelSim仿真软件对VHDL程序做了仿真，并完成了综合布局布线，最终下载到芯片Spartan-II上取得良好测试效果。-the code on the FPGA using VHDL development of the general process, finally adopted a FPGA-based digital frequency method. The design using VHDL hardware description language, the software development platform ISE completed, the higher speed clock frequency (100MHz) under normal work. The design of the frequency meter can be accurately measured in a frequency of 100MHz between Hz signal. Use ModelSim VHDL simulation software to do the simulation process, and completed a comprehensive layout cabling, downloaded to the final chip Spartan-II made good on the test results.

多进制数字频率调制(MFSK)系统VHDL程序-Multi-band digital frequency modulation (MFSK) system VHDL procedures

说明：  adc采集多路采集多通道基于dma的adc采集(ADC acquisition, multi-channel acquisition and multi-channel acquisition)

an 16 bit ripple carry adder

SPI串口的内核实现（vhdl）,可以用qII等软件直接加到FPGA或者CPLD里面.-the SPI Serial Kernel (vhdl) can be used directly qII software foisted CPLD or FPGA inside.