用可编程逻辑器件实现PWM波形即PWM波形发生器

基于LabVIEW FPGA的频谱估计与分析(the power spectrum estimation and analysis based on LabVIEW FPGA)

大名鼎鼎的Synopsys公司出的8051IP Core VHDL语言编写，能被keilC51支持-famous Synopsys Core 8051IP the VHDL language, can be supported keilC51

PCI arbi verilog source code

VERILOG设计实例，非常详细的例子，有交通灯，频率计，数字跑表等等例子(Verilog design example, a very detailed examples have traffic lights, frequency meter, digital stopwatch, etc. Examples of)

实现beep发出1234567的音乐声音-beep 123456

基于FPGA器件的DDS设计实现中的一个核心部分就是波形存储表的设计。首先采用LPM_ROM和 VHDL选择语句这两种方法进行波形存储表的设计和比较分析 然后考虑到硬件资源的有限性及DDS的精度要 求,对这两种方法的程序进行了优化 最后对这两种方法设计的程序进行仿真和硬件调试。结果表明:采用这两种 方法都能有效地实现DDS中波形存储表的设计。 (DDS-based FPGA devices designed to achieve one of the core of the waveform is stored in table design. First of all, choose to adopt LPM_ROM and VHDL statements of these two methods for the design waveform storage tables and comparative analysis and then, taking into account the limited hardware resources and the accuracy of DDS, the two methods to optimize the process the last of these two methods of process design simulation and hardware debugging. The results showed that: the use of these two methods are all effective ways to achieve the DDS waveform stored in the table design.)

一路24位计数器,cpu可直接读写计数器的计数值.-All the way 24-bit counters, cpu can be directly read and write the total value counters.

使用verilog HDL写的sdram(SDR)的控制器源代码，具有很好的可移植性，试验的例子已经通过QuartusII 9.0编译通过，可以运行在cycloneII上(Controller source code using verilog HDL written in the sdram (SDR), has good portability, test examples via the QuartusII 9.0 compiler, you can run in cycloneII)

des加密算法的verilog语言的实现-des encryption algorithm to achieve the Verilog language

lattice ECP3系列高速FPGA serdes测试代码(lattice ECP3 series high speed serdes test code)