DDS now to the use of more extensive relative bandwidth, frequency conversion ti...

FPGA开发,DE2开发板上实现,从SD卡读出MP3文件并播放,(即是开发一个简单的MP3播放器)(FPGA development, DE2 development board realize, from the SD card to read out and play MP3 files, (that is, the development of a simple MP3 player))

说明：  本资源有一个matlab程序段，是仿真BPSK分别在高斯噪声和瑞利衰落下的误码率，产生图形对仿真值和理论值进行比较(This resource has a matlab program segment, which is the bit error rate of simulated BPSK under Gaussian noise and Rayleigh fading respectively. The generated graph compares the simulated value with the theoretical value.)

说明：  Collection of Ethernet-related components for gigabit, 10G, and 25G packet processing (8 bit and 64 bit datapaths). Includes modules for handling Ethernet frames as well as IP, UDP, and ARP and the components for constructing a complete UDP/IP stack. Includes MAC modules for gigabit and 10G/25G, a 10G/25G PCS/PMA PHY module, and a 10G/25G combination MAC/PCS/PMA module. Includes various PTP related components for implementing systems that require precise time synchronization. Also includes full MyHDL testbench with intelligent bus cosimulation endpoints.

EDA中很重要的小程序，保证按键可靠性，防止抖动误差信号产生，外部信号输入时必用此消抖函数-EDA very important small procedures to ensure that key reliability and prevent jitter error signal generated, the external input signal must use this function Consumers shiver

是一个用vhdl语言编写的pwm程序，可以方便地用来和nios连接，实现对nios的功能扩展。-is a VHDL language with the PWM procedures can be used to facilitate connections and nios, nios to achieve a functional extension.

适合DE2板，能够在板子上的液晶显示器上实现时钟功能。-for Dictyophora board, in the way of achieving LCD clock function.

数字钟，简单的数电应用，电子表源程序，常用也使用-watch

任意奇数分频，只要修改N即可实现 可验证-Arbitrary odd-numbered sub-frequency, as long as the modified N can realize verifiable

里面含有vhdl和verilog 版本,很好用!dct变换用得很多啊!(Which contains a VHDL and Verilog versions of very good use! Dct transform with a lot ah!)

多倍（次）分频器 请注意: 本例的各个源描述的编译顺序应该是: 52_divider.vhd 52_divider_stim.vhd-Times (times) divider Please note: This case is described in various sources to compile the order should be: 52_divider.vhd 52_divider_stim.vhd