Today’s digital systems combine a myriad of chips with different voltage configurations.Designers must interface 2.5V processors with 3.3V memories—both RAM and ROM—as wellas 5V buses and multiple peripheral chips. Each chip has specific power supply needs. CPLDsare ideal for handling the multi-voltage interfacing, but do require forethought to ensure correctoperation.
上传时间: 2013-11-10
上传用户:yy_cn
The data plane of the reference design consists of a configurable multi-channel XBERT modulethat generates and checks high-speed serial data transmitted and received by the MGTs. Eachchannel in the XBERT module consists of two MGTs (MGTA and MGTB), which physicallyoccupy one MGT tile in the Virtex-4 FPGA. Each MGT has its own pattern checker, but bothMGTs in a channel share the same pattern generator. Each channel can load a differentpattern. The MGT serial rate depends on the reference clock frequency and the internal PMAdivider settings. The reference design can be scaled anywhere from one channel (two MGTs)to twelve channels (twenty-four MGTs).
上传时间: 2013-12-25
上传用户:jkhjkh1982
ARM通讯 H-JTAG 是一款简单易用的的调试代理软件,功能和流行的MULTI-ICE 类似。H-JTAG 包括两个工具软件:H-JTAG SERVER 和H-FLASHER。其中,H-JTAG SERVER 实现调试代理的功能,而H-FLASHER则实现了FLASH 烧写的功能。H-JTAG 的基本结构如下图1-1所示。 H-JTAG支持所有基于ARM7 和ARM9的芯片的调试,并且支持大多数主流的ARM调试软件,如ADS、RVDS、IAR 和KEIL。通过灵活的接口配置,H-JTAG 可以支持WIGGLER,SDT-JTAG 和用户自定义的各种JTAG 调试小板。同时,附带的H-FLASHER 烧写软件还支持常用片内片外FLASH 的烧写。使用H-JTAG,用户能够方便的搭建一个简单易用的ARM 调试开发平台。H-JTAG 的功能和特定总结如下: 1. 支持 RDI 1.5.0 以及 1.5.1; 2. 支持所有ARM7 以及 ARM9 芯片; 3. 支持 THUMB 以及ARM 指令; 4. 支持 LITTLE-ENDIAN 以及 BIG-ENDIAN; 5. 支持 SEMIHOSTING; 6. 支持 WIGGLER, SDT-JTAG和用户自定义JTAG调试板; 7. 支持 WINDOWS 9.X/NT/2000/XP; 8.支持常用FLASH 芯片的编程烧写; 9. 支持LPC2000 和AT91SAM 片内FLASH 的自动下载;
上传时间: 2013-11-19
上传用户:水中浮云
XMail is an Internet and intranet mail server featuring an SMTP server, POP3 server, finger server, multiple domains, no need for users to have a real system account, SMTP relay checking, RBL/RSS/ORBS/DUL and custom ( IP based and address based ) spam protection, SMTP authentication ( PLAIN LOGIN CRAM-MD5 POP3-before-SMTP and custom ), a POP3 account syncronizer with external POP3 accounts, account aliases, domain aliases, custom mail processing, direct mail files delivery, custom mail filters, mailing lists, remote administration, custom mail exchangers, logging, and multi-platform code. XMail sources compile under GNU/Linux, FreeBSD, OpenBSD, NetBSD, OSX, Solaris and NT/2K/XP.
标签: server featuring Internet intranet
上传时间: 2015-01-12
上传用户:asddsd
来自《VC6.0可视化编程》的源码,适用于初学者。 这是第一章,关于multi windows 的代码
上传时间: 2013-12-20
上传用户:TF2015
经常用到的 socketAPI,posix thread 的类封装,还有一些同步设施 智能指针的实现,线程安全的引用计数
标签: socketAPI
上传时间: 2013-12-22
上传用户:siguazgb
linux下的gdbserver源码,供multi-ice调试ARM处理器
上传时间: 2013-12-24
上传用户:txfyddz
The practice of enterprise application development has benefited from the emergence of many new enabling technologies. Multi-tiered object-oriented platforms, such as Java and .NET, have become commonplace.
标签: application development enterprise benefited
上传时间: 2015-03-11
上传用户:aig85
This an adaptive receiver for a direct-sequence spread spectrum (DS-SS) system over an AWGN channel. The adaptive receiver block is modified from the LMS adaptive filter block in DSP Blockset. For DS-SS signal reception, the adaptive filter needs to have multi-rate operation. The input sample rate is equal to chip rate and the output is at symbol rate. Two rates are related by PG, processing gain
标签: direct-sequence adaptive receiver spectrum
上传时间: 2014-01-16
上传用户:D&L37
JBuilder制作音频播放程序,需要注意的是,当播放时,界面上的各个按钮应当仍然可以对用户的操作进行事件响应,所以至少需要两个线程:一个控制歌曲的播放,另外一个对用户事件进行响应。因此我们的AudioPlay类需要实现Runable接口,以使用多线程技术。根据JDK的解释-JDK1.4.0,任何需要由线程执行的实例都应当实现Runable接口,而且由于我们只需要重写run()方法和stop()方法,并给start()方法多态化,所以我们选择实现Runable接口,这样就可以不需要继承Thread类而使用Thread类的实例来运行了。
上传时间: 2014-01-14
上传用户:R50974