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提出一种基于单片机AT89C51SND1C的MP3播放系统的设计方案。单片机集成了专用的解码器，使用K9F1208闪存作为外存储器，放音电路采用CS4330，存储文件通过播放器上的USB接口设备从PC机上直接下载，液晶显示采用LCD1602。方案设计简单，性价比高，低功耗，易扩展。由于采用的是通用单片机实现的，可以很容易地移植到其他微控制 ...

This application note covers the design considerations of a system using the performance features of the LogiCORE™ IP Advanced eXtensible Interface (AXI) Interconnect core. The design focuses on high system throughput through the AXI Interconnect core with F MAX  and area optimizat ...

嵌入式LINUX  电子教程全集 嵌入式系统出现于60年代晚期，它最初被用于控制机电电话交换机，如今已被广泛的应用于工业制造、过程控制、通讯、仪器、仪表、汽车、船舶、航空、航天、军事装备、消费类产品等众多领域。计算机系统核心CPU，每年在全球范围内的产量大概在二十亿颗左右，其中超过80％应用于各类专用性很 ...

This application note covers the design considerations of a system using the performance features of the LogiCORE™ IP Advanced eXtensible Interface (AXI) Interconnect core. The design focuses on high system throughput through the AXI Interconnect core with F MAX  and area optimizat ...

PCB设计问题集锦 问：PCB图中各种字符往往容易叠加在一起，或者相距很近，当板子布得很密时，情况更加严重。当我用Verify Design进行检查时，会产生错误，但这种错误可以忽略。往往这种错误很多，有几百个，将其他更重要的错误淹没了，如何使Verify Design会略掉这种错误，或者在众多的错误中快速找到重要的错误。　 　　答 ...

  Have you had the exasperating experience of a laptop orPDA defi antly not responding to your commands? Youfrantically press key after key, but to no avail. As hopeturns to anger (but just before you throw the company’slaptop through the window) you slam your fi nger againstthe on/of ...

This directory contains code implementing the K-means algorithm. Source codemay be found in KMEANS.CPP. Sample data isfound in KM2.DAT. The KMEANSprogram accepts input consisting of vectors and calculates the givennumber of cluster centers using the K-means algorithm. Output isdirected to the screen ...

手机地址薄程序，包含disploy, screen, form, alert blist, textbox, command的应用

The goal with this project was to make it possible for almost any mobile-phone to use ICQ and be able to communicate with other users! One other goal with this project was to lower the GPRS-traffic in the phone and make the ICQ-ing cheaper. A third goal was to make this service as easy to log-in t ...

优龙的ARM9 FS2410开发板原码，含大量测试程序！如LCD，TOUCH SCREEN，IIC，IIS，KEY，RTC，UART都有了。极有参考学习价值，推荐下载！