fft source code

说明：  设计11位巴克码序列峰值检测器，巴克码相关器原理：巴克码相关器能够检测巴克码序列峰值，并且能够在1bits错误情况下检测巴克码序列峰值。(A 11-bit Barker code sequence peak detector is designed. The principle of Barker code correlator is that the Barker code correlator can detect the peak value of Barker code sequence and detect the peak value of Barker code sequence in the case of 1 bits error.)

adder 18b trong chuong trinh verilog

说明：  本书介绍基于FPGA实现数字信号处理的原理与方法，作为Xilinx公司相关课程的培训教材(The FPGA implementation of DSP principle & method.)

利用单片机控制LED时钟显示，以及闹钟，程序较大，但比较简单易懂。(LED clock display)

说明：  此程序为调试通过的程序，带有I2C总线功能的程序.(this procedure through the debugging process, with I2C bus function procedures.)

说明：  这是一款由晶振产生的脉冲控制的数字钟，可以从00:00:00到23:59:59之间进行计时。(this is a clolk controlled by continuious pulse.it can timing from 00:00:00 to 23:59:59.)

LDPC码不同码长对比。码率选择1/2.码长分别为256，512，1024.(LDPC codes of different code length contrast. Bitrate select 1/2 yards long were 256,512,1024.)

数字频率测量器，脉宽测量器。可测量多种频率波形的脉宽。(Digital frequency measurement device, pulse width measurement device. Measurement of the waveform of frequency pulse width)

说明：  基于fpga的ad采样程序 可控制ad9226对信号进行采样(Ad9226 signal sampling can be controlled by ad9226 sampling program based on FPGA)

完成APB slave 的单次寄存器读写控制，相同时终域完成，简单操作