Synopsys' widely-used design constraints format, known as SDC, describes the "design intent" and surrounding constraints for synthesis, clocking, timing, power, test and environmental and operating conditions. SDC has been in use and evolving for more than 20 years, making it the most popular and proven format for describing design constraints. Essentially all synthesized designs use SDC and numerous EDA companies have translators that can READ and process SDC.
上傳時間： 2018-07-13
上傳用戶：yalsim
用SI7021、STC15W204及0.96寸IIC的OLED制作個溫濕度計。 這個溫濕度計是用于最后版辦公室多功能桌面工具組合操作顯示界面用的http://bbs.mydigit.cn/READ.php?tid=2210356，由于SI7021是IIC總線的，如直接由工具組合顯示主控控制SI7021，占用資源多，所以把它獨立出來，用片STC15W204讀SI7021，然后采用模擬紅外遙控編碼格式把數據輸出。原打算是用DHT11，但DHT11的濕度誤差太大了，所以改用SI7021。 以下是制作圖片。 電路圖比較簡單，所以不傳電路圖了。注意:VCC是3。3Ⅴ的。
標簽： 溫濕度計
上傳時間： 2018-10-22
上傳用戶：13536121668
FLAHS WRITE AND READ
標簽： C8051 8051F FLASH 8051 F020 020
上傳時間： 2018-11-20
上傳用戶：shc0287
I saw the light of the future when I first READ Ray Kurzweil’s best-seller book The Singularity Is Near: When Humans Transcend Biology. One cubic inch of nanotube cir- cuitry, once fully developed, would be up to one hundred million times more powerful than the human brain.
標簽： Predictive Cognitive Warning System Early The
上傳時間： 2020-05-26
上傳用戶：shancjb
Your Cisco Networking Academy Course Booklet is designed as a study resource you can easily READ, high- light, and review on the go, wherever the Internet is not available or practical: ■ The text is extracted directly, word-for-word, from the online course so you can highlight important points and take notes in the “Your Chapter Notes” section. ■ Headings with the exact page correlations provide a quick reference to the online course for your class- room discussions and exam preparation. ■ An icon system directs you to the online curriculum to take full advantage of the images, labs, Packet Tracer activities, and dynamic Flash-based activities embedded within the Networking Academy online course interface.
標簽： Switching Wireless LAN and
上傳時間： 2020-05-27
上傳用戶：shancjb
LIKE SO MANY OTHERS , THIS BOOK WAS WRITTEN BECAUSE WE COULDN ’ T FIND ONE LIKE IT . We needed something to hand to all of those people who have come to us asking for “a good book to READ on RFID.” When we looked for candidates we found some great books, but most were aimed at electrical engineers or top-level managers, with very little for those of us who are in between. This book is for developers, system and software architects, and project managers, as well as students and professionals in all of the industries impacted by Radio Frequency Identification (RFID) who want to understand how this technology works. As the title suggests, this book is about RFID in general and not just the most recent developments; however, because so much is going on in the area of RFID for the supply chain and especially the Electronic Product Code (EPC), we have devoted consider- able space to these topics. Regardless of the type of RFID work you may be doing, we think you will find something useful here.
標簽： Essentials RFID
上傳時間： 2020-06-08
上傳用戶：shancjb
軟件開發人員必備工具書，，目錄如下Welcome to Software Construction [1]1.1 What Is Software Construction?1.2 Why Is Software Construction Important?1.3 How to READ This Book......7.1 Valid Reasons to Create a Routine7.2 Design at the Routine Level7.3 Good Routine Names7.4 How Long Can a Routine Be?7.5 How to Use Routine Parameters7.6 Special Considerations in the Use of Functions7.7 Macro Routines and Inline RoutinesDefensive Programming [5.6 + new material]8.1 Protecting Your Program From Invalid Inputs8.2 Assertions8.3 Error Handling Techniques8.4 Exceptions8.5 Barricade Your Program to Contain the Damage Caused by Errors8.6 Debugging Aids8.7 Determining How Much Defensive Programming to Leave in Production Code8.8 Being Defensive About Defensive ProgrammingThe Pseudocode Programming Process [4+new material]9.1 Summary of Steps in Building Classes and Routines9.2 Pseudocode for Pros9.3 Constructing Routines Using the PPP9.4 Alternatives to the PPP......
上傳時間： 2021-12-08
上傳用戶：20125101110
Proprietary Code READ Out Protection (PCROP) ----- 專有代碼讀取保護 現在產品開發過程中，二次開發將會越來越多，設計公司開發出自己產品后交給終端客戶進行二次功能或補充開發，簡稱二次開發，設計公司某些程序代碼不希望公開給終端客戶，但同時又希望部分函 數功能可以給終端客戶使用，這時就需要有一種專有代碼保護機制供客戶使用，STM32F4xx 芯片中的 PCROP 可以解決類似問題。
標簽： stm32
上傳時間： 2022-02-21
上傳用戶：
本文主要介紹如何在Wado設計套件中進行時序約束，原文出自 xilinx中文社區。1 Timing Constraints in Vivado-UCF to xdcVivado軟件相比于sE的一大轉變就是約束文件，5E軟件支持的是UcF（User Constraints file，而 Vivado軟件轉換到了XDc（Xilinx Design Constraints）。XDC主要基于SDc（Synopsys Design Constraints）標準，另外集成了Xinx的一些約束標準可以說這一轉變是xinx向業界標準的靠攏。Altera從 TimeQuest開始就一直使用SDc標準，這一改變，相信對于很多工程師來說是好事，兩個平臺之間的轉換會更加容易些。首先看一下業界標準SDc的原文介紹：Synopsys widely-used design constraints format, known as sDc, describes the design intent"and surrounding constraints for synthesis, clocking, timing, power, test and environmental and operating conditions. sDc has been in use and evolving for more than 20 years, making it the most popular and proven format for describing design constraints. Essentially all synthesized designs use SDc and numerous EDa companies have translators that can READ and process sDc
標簽： vivado
上傳時間： 2022-03-26
上傳用戶：
為了確保最佳性能，請仔細閱讀本手冊。請將其保存在安全的地方，以備將來參考。將本機安裝在陰涼，干燥，清潔的地方-遠離窗戶的熱源，過多的振動灰塵，濕氣和冷源。避免嗡嗡聲的變壓器，電動機。為避免起火或電擊，請勿使本機遭受雨淋或浸水。絕對不要機柜。如果有東西掉入設備中，請與經銷商聯系。不要在開關，控件或連接線上用力。移動設備時，請先拔下電源插頭和與其他設備相連的電線。切勿自己拉電線。機柜上的開口可確保設備正常通風。如果這些開口被阻塞，則機柜內部的溫度將迅速升高。因此，請避免將物品放在這些開口處，并將其安裝在后方10厘米，兩側20厘米，深30厘米9通風條件確保設備的頂部面板至少留出一定空間。否則不僅會損壞設備，還會引起火災。To assure the finest performance, please READ this manual carefully. Keep it in a safe place for future reference Install this unit in a cool, dry, clean place -away from windows heat sources, sources of excessive vibration dust, moisture and cold. Avoid sources of humming transformers, motors). To prevent fire or electrical shock do not expose the unit to rain or water.
上傳時間： 2022-04-02
上傳用戶：
