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.
上傳時間: 2013-11-10
上傳用戶: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).
上傳時間: 2013-12-25
上傳用戶:jkhjkh1982
ARM通訊 H-JTAG 是一款簡單易用的的調(diào)試代理軟件,功能和流行的MULTI-ICE 類似。H-JTAG 包括兩個工具軟件:H-JTAG SERVER 和H-FLASHER。其中,H-JTAG SERVER 實現(xiàn)調(diào)試代理的功能,而H-FLASHER則實現(xiàn)了FLASH 燒寫的功能。H-JTAG 的基本結(jié)構(gòu)如下圖1-1所示。 H-JTAG支持所有基于ARM7 和ARM9的芯片的調(diào)試,并且支持大多數(shù)主流的ARM調(diào)試軟件,如ADS、RVDS、IAR 和KEIL。通過靈活的接口配置,H-JTAG 可以支持WIGGLER,SDT-JTAG 和用戶自定義的各種JTAG 調(diào)試小板。同時,附帶的H-FLASHER 燒寫軟件還支持常用片內(nèi)片外FLASH 的燒寫。使用H-JTAG,用戶能夠方便的搭建一個簡單易用的ARM 調(diào)試開發(fā)平臺。H-JTAG 的功能和特定總結(jié)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和用戶自定義JTAG調(diào)試板; 7. 支持 WINDOWS 9.X/NT/2000/XP; 8.支持常用FLASH 芯片的編程燒寫; 9. 支持LPC2000 和AT91SAM 片內(nèi)FLASH 的自動下載;
標簽: H-JTAG 調(diào)試軟件
上傳時間: 2013-11-19
上傳用戶: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.
標簽: server featuring Internet intranet
上傳時間: 2015-01-12
上傳用戶:asddsd
來自《VC6.0可視化編程》的源碼,適用于初學者。 這是第一章,關(guān)于multi windows 的代碼
上傳時間: 2013-12-20
上傳用戶:TF2015
經(jīng)常用到的 socketAPI,posix thread 的類封裝,還有一些同步設(shè)施 智能指針的實現(xiàn),線程安全的引用計數(shù)
標簽: socketAPI
上傳時間: 2013-12-22
上傳用戶:siguazgb
linux下的gdbserver源碼,供multi-ice調(diào)試ARM處理器
上傳時間: 2013-12-24
上傳用戶: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.
標簽: application development enterprise benefited
上傳時間: 2015-03-11
上傳用戶: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
標簽: direct-sequence adaptive receiver spectrum
上傳時間: 2014-01-16
上傳用戶:D&L37
JBuilder制作音頻播放程序,需要注意的是,當播放時,界面上的各個按鈕應(yīng)當仍然可以對用戶的操作進行事件響應(yīng),所以至少需要兩個線程:一個控制歌曲的播放,另外一個對用戶事件進行響應(yīng)。因此我們的AudioPlay類需要實現(xiàn)Runable接口,以使用多線程技術(shù)。根據(jù)JDK的解釋-JDK1.4.0,任何需要由線程執(zhí)行的實例都應(yīng)當實現(xiàn)Runable接口,而且由于我們只需要重寫run()方法和stop()方法,并給start()方法多態(tài)化,所以我們選擇實現(xiàn)Runable接口,這樣就可以不需要繼承Thread類而使用Thread類的實例來運行了。
上傳時間: 2014-01-14
上傳用戶:R50974
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