这时一个数字钟的VHDL程序，有计时、校时、整点报时功能，很适合做EDA设计之用...

合并单元内GPS同步时钟的检测 合并单元内GPS同步时钟的检测-Combined unit GPS clock synchronization detection unit merger GPS synchronized clock detection

this is a verilog code for root raised cosine filter

说明：  16点verilog FFT，可供参考学习使用(16 points Verilog FFT can be used for reference)

完整的TPC编译码VHDL程序，直接就可以运行(TPC encoder and decoder)

基于FPGA的温度控制系统 VHDL 数码管显示温度 ds1820 温度报警(The temperature control system based on FPGA VHDL digital display temperature ds1820 temperature alarm)

说明：  基于RTL8211以太网芯片开发的以太网通信代码，使用Quartus编程，FPGA板子为开发者(Ethernet communication code based on rtl8211 Ethernet chip, using quartus programming, FPGA board for developers)

Xilinx FPGA中FFT IP核的使用笔记，内部有FFT硬核的端口说明和具体设置以及源代码，对于数字信号处理研究人员，能图像处理、雷达成像、实时通信开发人员较多的开发时间！(Xilinx FPGA in the FFT IP core using a laptop internal hard core of the FFT port description and specific settings as well as the source code for digital signal processing, image processing, radar imaging, real-time communications developers more development time!)

完成一个FIR数字滤波器的设计。要求： 1、 基于直接型和分布式两种算法。 2、 输入数据宽度为8位，输出数据宽度为16位。 3、 滤波器的阶数为16阶，抽头系数分别为h[0]=h[15]=0000，h[1]=h[14]=0065，h[2]=h[13]=018F，h[3]=h[12]=035A，h[4]=h[11]=0579，h[5]=h[10]=078E，h[6]=h[9]=0935，h[7]=h[8]=0A1F。 -Completion of a FIR digital filter design. Requirements: one, based on the direct type and distributed two algorithms. 2, input data width of 8, the output data width of 16. 3, filter order of 16 bands, tap coefficients for h [0] = h [15] = 0000, h [1] = h [14] = 0065, h [2] = h [13] = 018F , h [3] = h [12] = 035A, h [4] = h [11] = 0579, h [5] = h [10] = 078E, h [6] = h [9] = 0935, h [7] = h [8] = 0A1F.

说明：  文件用于驱动TFT屏，分辨率800*400，平台为quartus13，芯片为cycloneIV(The file is used to drive the TFT screen with a resolution of 800*400. The platform is quartus 13 and the chip is cyclone IV.)

FSK/MSK/GFSK/GMSK DIGITAL DEMODULATOR VHDL SOURCE CODE OVERVIEW