EDA应用中RAM具体定义实例，供大家学习和写程序参考之用

用于ATmega128的一些通讯程序，包含I2C　UART，SPI等接口，用ICCAVR编译(for ATmega128 some communications procedures, including UART I2C, SPI interfaces with ICCAVR compiler)

说明：  FPGA实现PLL锁相环，输出不同频率的时钟控制信号。(FPGA realizes PLL and outputs clock control signals of different frequencies.)

基于FPGA的数字电压表 两种方案 一种VHDL一种Verilog(Digital voltmeter based on FPGA)

matlab code for communication

说明：  使用STM32官方提供的DSP库进行FFT，虽然在使用上有些不灵活（因为它是基4的FFT，所以FFT的点数必须是4^n），但其执行效率确实非常高效，看图1所示的FFT运算效率测试数据便可见一斑。该数据来自STM32 DSP库使用文档(. Using the official DSP library provided by STM32 for FFT is not flexible in use (because it is the FFT of base 4, so the number of FFT points must be 4 ^ n), but its execution efficiency is really very efficient, as can be seen from the test data of FFT operation efficiency shown in Figure 1. This data comes from STM32 DSP library usage document)

VHDL cyclic redundancy check generator und receiver

开关电源变换器（Switching Power Supply）为当前电子产品中应用非常广泛的功率器件，在日常生活中无处不在

用Verilog HDL语言进行HDB3编码，并通过Quartus Ⅱ仿真验证(With the Verilog HDL language HDB3 coding, and simulation by Quartus Ⅱ)

Xilinx ISE 9.2 and ChinpScope Pro 9.2 Sn

In the data management system a significant role of the Data link layer is to convert the unreliable physical link between reader and tag into a reliable link. Therefore, the RFID system employs the Cyclic Redundancy Check (CRC) as an error detection scheme. In addition for reader to communicate with the multiple tags, an anti-collision technique is required. The technique is to coordinate the communication between the reader and the tags. The common deterministic anti-collision techniques are based on the Tree algorithm such as the Binary Tree and the Query Tree algorithms.