数字电子钟

用Verilog HDL实现I2C总线功能，对I2C总线有很大帮助-I2C bus contrll functions implemented by Verilog HDL.

说明：  很好的免费学些 verilog教程 欢迎下载(Learn a good free download verilog tutorials welcome)

这是一段控制1394芯片的cpld的verilog程序,可以参考,在实际项目中已经采用.(This is a control chip cpld 1394 Verilog the procedures, they can refer to the actual project has been adopted.)

it is a multiplier used in RIsc architecture based processor.......

完成一个1位全减器的设计。以全减器为元件程序完成8位减法器设计。(Completed a one minus the whole design. Full reduction is to complete eight subtraction element program design.)

基于FPGA的1024点流水线工作方式的FFT实现,适合fpga的技术人员做信号处理参考-FPGA based on the work of the 1024-point pipelined FFT approach the realization of the technical staff for doing fpga signal processing reference

有限状态机工作原理、设计方法、步骤等精要说明(Finite state machine working principle, design method, such as Essentials of steps to explain)

usb 和VGA接口FPGA程序，主控芯片为xilinx公司的SP3e系列的500E芯片，VHD语言编写，工程文件，可以直接用ISE打开

这是一个vhdl代码的进位选择加法器及其工作100%。

直接数字频率合成器（Direct Digital Frequency Synthesizer：DDFS）的VHDL程序,开发环境是QuartusII,系统时钟为50MHz，由PLL产生DDFS的工作时钟166.67MHz,地址位宽为24位，频率字为20，相位字为10，RAM用于存储查找表，其地址位宽为10，数据位宽为8。-Direct Digital Frequency Synthesizer ( DDFS) of the VHDL program, the development environment is QuartusII, the system clock to 50MHz, the work of DDFS generated by PLL clock 166.67MHz, address bit-width of 24-bit frequency word is 20, phase word for 10, RAM used to store look-up table, its address is 10 bits wide, the data is 8 bits wide.