此款LED 数码万年历采用Holtek 公司开发的HT45R02 和HT38A5 微控制器设计,具有年、 月、日、时、分、秒、星期、温度、农历、气温、24 节气显示以及整点报时,定闹功能。 HT45R02 具有2K´ 14 位ROM,80´ 8 位RAM 和40 个双向输入/输出口。拥有省电,宽广的工作 电压范围等特点。HT38A5 提供高质量的和弦铃声,内含12 首音乐,以及8 和弦功能。HT45R02 只需3 个I/O 跟HT38A5 通讯即可执行整点报时,定闹功能。
上传时间: 2015-11-19
上传用户:天涯
This book is a hands-on introduction to the principles and practice of embedded system design using the PIC microcontroller. Packed with helpful examples and illustrations, it gives an in-depth treatment of microcontroller design, programming in both assembly language and C, and features advanced topics such as networking and real-time operating systems. It is accompanied by a CD-ROM containing copies of all programs and software tools used in the text and a `student version of the C complier Designing Embedded Systems with PIC Microcontrollers: Principles and Applications is ideal for students of electronics, mechatronics and computer engineering. Engineers in industry and informed hobbyists will also find this book a valuable resource when designing and implementing both simple and sophisticated embedded systems using the PIC Microcontroller.
标签: introduction principles hands-on embedded
上传时间: 2014-01-17
上传用户:wuyuying
利用24C02实现音乐的存储与播放,掌握外部ROM的读取功能
上传时间: 2014-01-01
上传用户:qilin
M3355的源代码,开发DVD的可以参考一下。
上传时间: 2014-11-27
上传用户:330402686
Mplayer源码,不用多介绍了吧。 媒体类型 文件格式 MP3 mp3 m3u CD/DVD cda MPEG和AVI视频 mpg mpeg mpv mps m2v m1v mpe mpa avi mp4 m4e RealAudio和RealVideo rt ra rm rmvb rp rv Windows Media wma wmv wax asx asf wm wmx wvx QuickTime mov qt AAC aac m4a m4p 其他媒体 wav mp2 mp1 mpeg pls xpl smi smil flv ssm sdp aif aiff mid midi rmim acp rpl 3gp amr awb 3g2 au
上传时间: 2014-01-27
上传用户:leehom61
一个单片机应用系统的硬件电路设计包含两部分内容:一是系统扩展,即单片机内部的功能单元,如ROM、RAM、I/O、定时器/计数器、中断系统等不能满足应用系统的要求时,必须在片外进行扩展,选择适当的芯片,设计相应的电路。二是系统的配置,即按照系统功能要求配置外围设备,如键盘、显示器、打印机、A/D、D/A转换器等,要设计合适的接口电路。
上传时间: 2016-01-01
上传用户:sardinescn
这是一个7"LCD 液晶屏显示器,通过一个BOX(如压缩包图)转接,使此显示器多达三个信号输入源。其中AV1、AV2接DVD信号,另外一个接倒车摄像头视频信号。而且此显示器系统具有自动视频切换功能,即当显示器在播放DVD视频且汽车倒车时,显示器会自动切换到倒车视频。
上传时间: 2016-01-08
上传用户:mhp0114
This a naive implementation of BOOTP/TFTPBOOT, the protocols to use to bootstrap a computer through a TCP/IP network. The goal was to design a small footprint implementation to allow the code to be integrated into a monitor program stored in a ROM/FLASH, the footprint is about 7 KBytes for the test program. This code has not been yet tested in many environment. It should be seen at your starting point to integrate the network boot function to your board.
标签: implementation bootstrap protocols TFTPBOOT
上传时间: 2013-12-18
上传用户:极客
f your application uses MFC in a shared DLL, and your application is in a language other than the operating system s current language, you will need to copy the corresponding localized resources MFC42XXX.DLL from the Microsoft Visual C++ CD-ROM onto the system or system32 directory, and rename it to be MFCLOC.DLL. ("XXX" stands for the language abbreviation. For example, MFC42DEU.DLL contains resources translated to German.) If you don t do this, some of the UI elements of your application will remain in the language of the operating system.
标签: application your language shared
上传时间: 2013-12-24
上传用户:thuyenvinh
用汇编语言实现RESET启动和热启动 程序名: RESET.ASM/BOOT.ASM 程序类别: 完整的汇编语言程序 功能: 用程序完成RESET启动和热启动 使用说明: 汇编连接以后转换为com文件运行 程序说明: 在日常用机过程中,如果出现了异常情况常常需要重新启动系统 .对于IBM PC 以及其兼容机,除了开机冷启动外,还有热启动和R ESET开关复位启动,他们的共同特点是转入BIOS的入口点(即ROM 的起始单元FFFF:0处),执行该处的跳转指令,转向启动程序,该启 动程序在执行过程中需检测复位标志字(在地址0040:0072处,占2 个字节)的值,若为1234则启动是不检测内存 若非1234则启动先检 测内存,再启动系统.热启动和RESET启动的不同之处在于热启动时 不检测内存,而RESET启动是需要检测内存.
上传时间: 2013-12-26
上传用户:xfbs821