本文的内容是从概念上介绍USB软驱固件设计的各个步骤，这些步骤中的重点在于USB设备的枚举，Mass Storage CBI协议/UFI命令的处理以及本设计中所...

MP3的设计文档，使用的是1003和M64，有原理图-MP3 OF 1003 AND M64

基于数字电位器AD8402的程控增益系统。　比较了程控增益放大器的各种不同构成方式,介绍了一种采用多路数字电位器AD8402的偏置可调程控增益系统,同时给 出了该系统的硬件原理和软件设计,并指出AD8402使用中的几个注意事项。该设计方案硬件结构简单,性价比高,具有一定的通用性。-Digital Potentiometers AD8402 based on the programmable gain system. Programmable Gain Amplifier comparing the different poses to introduce a multi-way Digital Potentiometers AD8402 programmable gain adjustable bias system given the system

在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct

基于Linux防火墙的嵌入式网络流量控制系统，可供学习linux的人员参考。-Linux-based embedded firewall network traffic control system, learning linux for the reference.

FPGA的单片机多机串行通信网络。本文提及的大尺寸数码管动态驱动和保护电路-FPGA-MCU Multi-machine serial communications network. Mentioned in this large size digital tube dynamic drive and protection circuits

汽车应用中，一种新的成像协议，主要是将并行的数字视频信号转换成串行信号，通过电缆传输。

Citizen CBM-262 Srvice command reference

< AVR_U盘嵌入式FAT文件系统> 文件介绍了AVR Memory Stick嵌入式中实现类似操作系统的FAT文件管理系统，这些内容主要包括，文件系统的命名规范，文件寻址路径规范，文件系统核心数据结构的定义，文件系统读写类函数原型的定义。- document describes embedded AVR Memory Stick to achieve a similar operating system FAT file management systems, which mainly include the file system naming convention, document addressing the path specification, file system core data structure the definition of the file system functions to read and write the definition of the prototype.

AN FPGA-BASED IMPLEMENTATION FOR MEDIAN FILTER MEETING THE REAL-TIME　REQUIREMENTS OF AUTOMATED VISUAL INSPECTION SYSTEMS-AN FPGA-BASED IMPLEMENTATION FOR MEDIANFILTER MEETING THE REAL-TIME REQUIREMENTS OFAUTOMATED VISUAL INSPECTION SYSTEMS

useful design for BLDC