任意波形发生器

155B航空总线中曼彻斯特编码和译码模块，亲测可以使用，而且很好用，但是对锁相环的描述不是很仔细(155B Air bus Manchester encoding and decoding modules, pro-test can be used, and it just works)

主要介绍，I2C总线主设备发送数据给从设备，代码实现是用Verilog语言实现的，对硬件设计者有很大好处(Introduces, I2C bus master to send data to the slave device, code is implemented in Verilog language, the hardware designer of great benefit)

i2c代码 可以从eeprom中写入并读出一字节数据  并用led显示   已调试成功

access must be conf urr arr

使用VERILOG开发时钟同步算法，能够从数据信号中提取时钟信息，(Clock synchronization algorithm using VERILOG developed to extract the clock from the data signal information,)

ldpc的算法介绍及其fpga上硬件实现(Introduction of LDPC algorithm and Its FPGA implementation)

一个具有“百分秒，秒，分”计时功能的数字跑表，可以实现一个小时以内的精确至百分之一秒的计时。 数字跑表的显示读者可以通过编写数码管显示程序来实现，本训练只给出数字跑表的实现过程。 读者还可以通过增加小时的计时功能，实现完整的跑表功能。(A " percentage of seconds, seconds, minutes," digital stopwatch timer can be achieved within an hour of precision to the hundredth of a second time. Digital stopwatch readers can display the digital display through the preparation of procedures to achieve, given the training is only the realization of the process of digital stopwatch. Readers can also function to increase hours of time to achieve full stopwatch function.)

quartus ii 环境下，一个完整的利用TEXTIO仿真的源代码，包括读数据文件和输出数据到文件。(Under quartus ii environment, a complete simulation using TEXTIO source code, including reading data files and output data to a file.)

ad7705通过spi时序进行读写，通过fpga模拟spi时序对adc进行读写，首先写入通信寄存器20h，时钟寄存器0C，通信寄存器10，设置寄存器40H，然后写通信寄存器进行读取。

中频70M，30M带宽LFM信号，采样率为102.4M，，数字下变频后，还进行了三倍抽取，最后还得到I，Q两路信号 (IF 70M, 30M bandwidth LFM signal, the sampling rate 102.4M, under digital variable frequency after also carried out three times extracted, and finally also received the I and Q signals)