1．軟件安裝步驟 a)運行光盤中客戶軟件\CCS5000 CCS2.20\CCS2.2\SETUP.EXE，進(jìn)入引導(dǎo)界面； b)選擇Install下的Code Composer Studio進(jìn)入安裝界面； c)按照默認(rèn)的方式安裝，裝在C:\ti下。 d)安裝軟件補丁：運行光盤客戶軟件\c5000ccs2.20\CCS FOR C5000-補丁\C5000-2.20.00-FULL-to-C5000-2.20.18-FULL.EXE,進(jìn)入安裝界面,然后按照默認(rèn)的方式安裝即可。 e)重新啟動計算機，按DEL鍵進(jìn)入CMOS的設(shè)置界面CMOS SETUP UTILITY，將Integrated Peripherals中的Onboard Paralell Port改為378/IRQ，Parrallel Port Mode改為EPP，保存退出。 f)進(jìn)入windows后會出現(xiàn)“CCS 2(‘ C5000) ”、 “Setup CCS 2(‘ C5000) ”兩個圖標(biāo)。
標(biāo)簽： 激活
上傳時間： 2017-01-03
上傳用戶：jmw8637
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標(biāo)簽： 源代碼
上傳時間： 2017-11-17
上傳用戶：wendingchang
是否要先打開ALLEGRO? 不需要(當(dāng)然你的機器須有CADENCE系統(tǒng))。生成完封裝后在你的輸出目錄下就會有幾千個器件（全部生成的話）,默認(rèn)輸出目錄為c:\MySym\. Level里面的Minimum, Nominal, Maximum 是什么意思？ 對應(yīng)ipc7351A的ABC封裝嗎？ 是的 能否將MOST, NOMINAL, LEAST三種有差別的封裝在命名上也體現(xiàn)出差別？ NOMINAL 的名稱最后沒有后綴，MOST的后綴自動添加“Ｍ”，LEAST的后綴自動添加“L”，你看看生成的庫名稱就知道了。（直插件以及特別的器件，如BGA等是沒有MOST和LEAST級別的，對這類器件只有NOMINAL） IC焊盤用長方形好像比用橢圓形的好，能不能生成長方形的？ 嗯。。。。基本上應(yīng)該是非直角的焊盤比矩形的焊盤好，我記不得是AMD還是NS還是AD公司專門有篇文檔討論了這個問題，如果沒有記錯的話至少有以下好處：信號質(zhì)量好、更省空間（特別是緊密設(shè)計中）、更省錫量。我過去有一篇帖子有一個倒角焊盤的SKILL，用于晶振電路和高速器件（如DDR的濾波電容)，原因是對寬度比較大的矩形用橢圓焊盤也不合適，這種情況下用自定義的矩形倒角焊盤就比較好了－－－你可以從網(wǎng)上另外一個DDR設(shè)計的例子中看到。 當(dāng)然，我已經(jīng)在程序中添加了一選擇項，對一些矩形焊盤可以選擇倒角方式. 剛才試了一下，感覺器件的命名的規(guī)范性不是太好，另好像不能生成器件的DEVICE文件，我沒RUN完。。。 這個程序的命名方法基本參照IPC-7351，每個人都有自己的命名嗜好，仍是不好統(tǒng)一的；我是比較懶的啦，所以就盡量靠近IPC-7351了。 至于DEVICE，的選項已經(jīng)添加 (這就是批量程序的好處，代碼中加一行，重新生產(chǎn)的上千上萬個封裝就都有新東西了)。 你的庫都是"-"的,請問用過ALLEGRO的兄弟,你們的FOOTPRINT認(rèn)"-"嗎?反正我的ALLEGRO只認(rèn)"_"(下劃線) 用“－”應(yīng)該沒有問題的，焊盤的命名我用的是"_"（這個一直沒改動過）。 部分絲印畫在焊盤上了。 絲印的問題我早已知道，只是盡量避免開（我有個可配置的SilkGap變量）,不過工作量比較大，有些已經(jīng)改過，有些還沒有；另外我沒有特別費功夫在絲印上的另一個原因是，我通常最后用AUTO-SILK的來合并相關(guān)的層，這樣既方便快捷也統(tǒng)一各個器件的絲印間距，用AUTO-SILK的話絲印線會自動避開SOLDER-MASK的。 點擊allegro后命令行出現(xiàn)E- Can't change to directory: Files\FPM，什么原因？ 我想你一定是將FPM安裝在一個含空格的目錄里面了，比如C:\Program Files\等等之類，在自定義安裝目錄的時候該目錄名不能含有空格，且存放生成的封裝的目錄名也不能含有空格。你如果用默認(rèn)安裝的話應(yīng)該是不會有問題的, 默認(rèn)FPM安裝在C:\FPM，默認(rèn)存放封裝的目錄為C:\MYSYM 0.04版用spb15.51生成時.allegro會死機.以前版本的Allegro封裝生成器用spb15.51生成時沒有死機現(xiàn)象 我在生成MELF類封裝的時候有過一次死機現(xiàn)象，估計是文件操作錯誤導(dǎo)致ALLEGRO死機，原因是我沒有找到在ｓｋｉｌｌ里面直接生成SHAPE焊盤的方法（FLASH和常規(guī)焊盤沒問題）, 查了下資料也沒有找到解決方法，所以只得在外部調(diào)用SCRIPT來將就一下了。（下次我再查查看），用SCRIPT的話文件訪問比較頻繁（幸好目前MELF類的器件不多）. 解決辦法： １、對MELF類器件單獨選擇生成，其它的應(yīng)該可以一次生成。 ２、試試最新的版本(當(dāng)前0.05) 請說明運行在哪類器件的時候ALLEGRO出錯，如果不是在MELF附近的話，請告知，謝謝。 用FPM0.04生成的封裝好像文件都比較大，比如CAPC、RES等器件，都是300多K，而自己建的或采用PCB Libraries Eval生成的封裝一般才幾十K到100K左右，不知封裝是不是包含了更多的信息？ 我的每個封裝文件包含了幾個文字層（REF,VAL,TOL,DEV,PARTNUMBER等),SILK和ASSEM也是分開的，BOND層和高度信息，還有些定位線(在DISP層）,可能這些越來越豐富的信息加大了生成文件的尺寸.你如果想看有什么內(nèi)容的話，打開所有層就看見了（或REPORT） 非常感謝 LiWenHui 發(fā)現(xiàn)的BUG, 已經(jīng)找到原因，是下面這行： axlDBChangeDesignExtents( '((-1000 -1000) (1000 1000))) 有尺寸空間開得太大，后又沒有壓縮的原因，現(xiàn)在生成的封裝也只有幾十K了，0.05版已經(jīng)修復(fù)這個BUG了。 Allegro封裝生成器0.04生成do-27封裝不正確,生成封裝的焊盤的位號為a,c.應(yīng)該是A,B或者1,2才對. 呵呵，DIODE通常管腳名為AC(A = anode, C = cathode) 也有用AK 或 12的， 極少見AB。 除了DIODE和極個別插件以及BGA外，焊盤名字以數(shù)字為主, 下次我給DIODE一個選擇項，可以選擇AC 或 12 或 AK, 至于TRANSISTER我就不去區(qū)分BCE/CBE/ECB/EBC/GDS/GSD/DSG/DGS/SGD/SDG等了，這樣會沒完沒了的，我將對TRANSISTER強制統(tǒng)一以數(shù)字編號了，如果用家非要改變，只得在生成庫后手工修改。
標(biāo)簽： Footprint Maker 0.08 FPM skill
上傳時間： 2018-01-10
上傳用戶：digitzing
Device-to-device(D2D) communications are now considered as an integral part of future 5G networks which will enable direct communication between user equipment (UE) without unnecessary routing via the network infrastructure. This architecture will result in higher throughputs than conventional cellular networks, but with the increased potential for co-channel interference induced by randomly located cellular and D2D UEs.
標(biāo)簽： Device-to-Device Communications Analysis of
上傳時間： 2020-05-26
上傳用戶：shancjb
At present, there is a strong worldwide push toward bringing fiber closer to indi- vidual homes and businesses. Fiber-to-the-Home/Business (FTTH/B) or close to it networks are poised to become the next major success story for optical fiber com- munications. In fact, FTTH connections are currently experiencing double-digit or even higher growth rates, e.g., in the United States the annual growth rate was 112% between September 2006 and September 2007, and their presence can add value of U.S. $4,000–15,000 to the selling price of a home.
標(biāo)簽： Technologies Broadband Networks Access
上傳時間： 2020-05-26
上傳用戶：shancjb
This book is an entry-level text on the technology of telecommunications. It has been crafted with the newcomer in mind. The twenty-one chapters of text have been prepared for high-school graduates who understand algebra, logarithms, and the basic principles of electricity such as Ohm’s law. However, it is appreciated that many readers require support in these areas. Appendices A and B review the essentials of electricity and mathematics up through logarithms. This material was placed in the appendices so as not to distract from the main theme, the technology of telecommunication systems. Another topic that many in the industry find difficult is the use of decibels and derived units. Appendix C provides the reader a basic understanding of decibels and their applications. The only mathematics necessary is an understanding of the powers of ten
標(biāo)簽： Telecommunications Fundamentals 2nd of ed
上傳時間： 2020-05-27
上傳用戶：shancjb
In this book, we study the interference cancellation and detection problem in multiantenna multi-user scenario using precoders. The goal is to utilize multiple antennas to cancel the interference without sacrificing the diversity or the com- plexity of the system.
標(biāo)簽： Cancellation6 Interference
上傳時間： 2020-05-27
上傳用戶：shancjb
This books presents the research work of COST 273 Towards Mobile Broadband Multimedia Networks, hence, it reports on the work performed and on the results achieved within the project by its participants. The material presented here corresponds to the results obtained in four years of collaborative work by more than 350 researchers from 137 institutions (universities, operators, manufacturers, regulators, independent laboratories and others – a full list is provided in Appendix B) belonging to 29 countries (mainly European, but also from Asia and North America) in the area of mobileradio. Theobjectiveofpublishingtheseresultsasabookisessentiallytomakethemavailable to an audience wider than the project. In fact, it just follows a ‘tradition’ of previous COST Actions in this area of telecommunications, i.e. COST 207, 231 and 259.
標(biāo)簽： Multimedia Techniques Broadband Networks Mobile
上傳時間： 2020-05-30
上傳用戶：shancjb
At the macroscopic level of system layout, the most important issue is path loss. In the older mobile radio systems that are limited by receiver noise, path loss determines SNR and the maximum coverage area. In cellular systems, where the limiting factor is cochannel interference, path loss determines the degree to which transmitters in different cells interfere with each other, and therefore the minimum separation before channels can be reused.
標(biāo)簽： Characteristics Channel Mobile
上傳時間： 2020-05-30
上傳用戶：shancjb
The ever-increasing demand for private and sensitive data transmission over wireless net- works has made security a crucial concern in the current and future large-scale, dynamic, and heterogeneous wireless communication systems. To address this challenge, computer scientists and engineers have tried hard to continuously come up with improved crypto- graphic algorithms. But typically we do not need to wait too long to find an efficient way to crack these algorithms. With the rapid progress of computational devices, the current cryptographic methods are already becoming more unreliable. In recent years, wireless re- searchers have sought a new security paradigm termed physical layer security. Unlike the traditional cryptographic approach which ignores the effect of the wireless medium, physi- cal layer security exploits the important characteristics of wireless channel, such as fading, interference, and noise, for improving the communication security against eavesdropping attacks. This new security paradigm is expected to complement and significantly increase the overall communication security of future wireless networks.
標(biāo)簽： Communications Physical Security Wireless Layer in
上傳時間： 2020-05-31
上傳用戶：shancjb
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