Introduce a simple and reliable embedded Ethernet Interface Design

一个百货管理系统的设计方案,可共大家参考-A department store management system design, can be a total of your reference

5402开发板原理图.含51单片机.可以在不用仿真器的情况下把代码固化在芯片.-5402 development board schematics. Containing 51 Single-chip. Can in no circumstances simulator curing the code in the chip.

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可编程通用开关电容有源滤波器MAX261及其应用-Programmable Universal Switched-Capacitor Active Filter MAX261 and Its Application

Quiz-type game shows are increasingly becoming popular on television these days. In such games, fastest finger first indicators (FFFIs) are used to test the player’s reaction time. The player’s designated number is displayed with an audio alarm when the player presses his entry button.

本文的电子密码锁利用数字逻辑电路，实现对门的电子控制，并且有各种附加电路保证电路能够安全工作，有极高的安全系数。 -In this paper, the electronic code lock using digital logic circuits, the realization of the electronic door control, and a variety of additional circuitry to ensure the safety circuit can work in very high safety factor.

学习QUARTUSII的一些体会心得，希望对初学者有帮助-QUARTUSII some experience of learning experiences, and they hope to help beginners

设有n项独立的作业{1,2,…, n},由m台相同的机器加工处理。作业i所需要的处理时间为ti。约定：任何一项作业可在任何一台机器上处理，但未完工前不准中断处理；任何作业不能拆分更小的子作业。多机调度问题要求给出一种调度方案，使所给的n个作业在尽可能短的时间内由m台机器处理完。设计算法。 -Stand-alone operation with n items (1,2, ..., n), by m units the same machine processing. Job i the processing time required to ti. Convention: any one job can be processed on any machine, but does not pre-completion are not allowed to interrupt processing any operation can not be split smaller sub-operations. Multi-machine scheduling problem requires paper, a scheduling program, so that given the n-operation in the shortest possible time processed by m machines. Design algorithms.

详细讲述嵌入式系统构建的全过程，使用u－boot作为bootloader，2.6版本的linux作为系统内核，详细而深入，强-detail Embedded System Construction of the entire process, Use u-boot as Bootloader, the 2.6 version of Linux as the kernel. detailed and in-depth, strong!

AC Controller you can use it as a good reference