此題目是通過鍵盤來實現密碼輸入是否正確，正確的時候數碼管亮，否則發出報警聲。 判斷是按鍵還是干擾是非常有用的，它體現了一個系統的抗干擾能力。高低電平在瞬間的變換是很正常的，如果沒有這條語句，系統很容易出錯。 其中2秒是由定時器0來完成的。 在程序的定時器中斷中，用switch代替了if else結構，使得程序的可讀性大大增強。 TH0 = (65536-50000) / 256 TL0 = (65536-50000) 256 使得TH0 = 3CH, TL0 = B0H,由于該單片機的晶振為12MHz 因此定時時間就為0.05ms.在定時器中斷服務程序中用FLASH計數，當計數達到40時正好是2秒。
上傳時間： 2014-01-21
上傳用戶：caozhizhi
This software is developed to provide ease with controller design. For PID control, options are given to design and analyse the compensated and uncompensated system. You are free to choice among Proportional PI, PD and PID mode of control. Both frequency and time domain characteristics can be observed. Special Menus are given to observe time and frequency response plots. For Statefeedback controller similar options are given. But this is limited to second order system only.
標簽： controller developed software control
上傳時間： 2017-07-25
上傳用戶：aysyzxzm
RS_latch using vhdl, When using static gates as building blocks, the most fundamental latch is the simple SR latch, where S and R stand for set and reset. It can be constructed from a pair of cross-coupled NOR (Not OR) logic gates. The stored bit is present on the output marked Q. Normally, in storage mode, the S and R inputs are both low, and feedback maintains the Q and Q outputs in a constant state, with Q the complement of Q. If S (Set) is pulsed high while R is held low, then the Q output is forced high, and stays high when S returns to low similarly, if R (Reset) is pulsed high while S is held low, then the Q output is forced low, and stays low when R returns to low.
標簽： using fundamental the RS_latch
上傳時間： 2017-07-30
上傳用戶：努力努力再努力
hese are the zip files that are associated with application note ADSP-BF533 Blackfin Booting Process (EE-240) example.zip: Used throughout the EE-note to explain in detail the various booting modes. BF533 Ez Kit Multiple DXE Boot.zip: Multi-DXE Boot Example used with the ADSP-BF533 Ez-Kit Lite. Host Boot.zip: Example Host code to demonstrate SPI Slave Mode Booting Program_Atmel.zip: Example code that programs the Atmel DataFlashes via an ADSP-BF532 Processor All programs have been written for VisualDSP++ 3.5
標簽： application associated are Blackfin
上傳時間： 2017-07-30
上傳用戶：tonyshao
矩陣鍵盤程序，主要教會初學者練習switch語句，同時練習條件語句，用于鍵盤掃描
標簽： 矩陣鍵盤程序
上傳時間： 2014-01-24
上傳用戶：wanqunsheng
視頻質料 在matlab環境中如何使用radiobutton，switch語句，邊緣檢測
標簽： radiobutton matlab 視頻 環境
上傳時間： 2017-08-15
上傳用戶：thesk123
Complete coverage of all four CCNP exams: ? EIGRP, OSPF, IS-IS, and BGP ? Optimizing routing ? IP multicast ? IPv6 ? VLAN implementation ? Spanning Tree ? InterVLAN routing ? Layer 3 redundancy ? Wireless LANs ? VoIP in campus networks ? Campus network security ? Frame-mode MPLS ? IPsec ? Cisco device hardening ? Cisco IOS? threat defenses ? Cisco VoIP ? QoS and AutoQoS ? Wireless scalability
標簽： Optimizing Complete coverage routing
上傳時間： 2017-09-26
上傳用戶：cuibaigao
The TJA1040 is an advanced high speed CAN transceiver for use in automotive and general industrial applications. It supports the differential bus signal representation described in the international standard for in-vehicle high speed CAN applications (ISO11898). CAN (Controller Area Network) is the standard protocol for serial in-vehicle bus communication, particularly for Engine Management and Body Multiplexing. The TJA1040 provides a Standby mode, as known from its functional predecessors PCA82C250 and PCA82C251, but with significantly reduced power consumption. Besides the excellent low-power behavior the TJA1040 offers several valuable system improvements. Highlights are the absolute passive bus behavior if the device is unpowered as well as the excellent EMC performance.
標簽： CAN
上傳時間： 2015-03-23
上傳用戶：Yuan Lo
第一章關鍵字...................................................................................................................................9 1.1，最寬恒大量的關鍵字----auto..........................................................................................11 1.2，最快的關鍵字---- register............................................................................................... 11 1.2.1，皇帝身邊的小太監----寄存器............................................................................. 11 1.2.2，使用register 修飾符的注意點.............................................................................11 1.3，最名不符實的關鍵字----static........................................................................................12 1.3.1，修飾變量...............................................................................................................12 1.3.2，修飾函數...............................................................................................................13 1.4，基本數據類型----short、int、long、char、float、double........................................... 13 1.4.1，數據類型與“模子”............................................................................................... 14 1.4.2，變量的命名規則...................................................................................................14 1.5，最冤枉的關鍵字----sizeof...............................................................................................18 1.5.1，常年被人誤認為函數...........................................................................................18 1.5.2，sizeof（int）*p 表示什么意思？........................................................................18 1.4，signed、unsigned 關鍵字................................................................................................19 1.6，if、else 組合.................................................................................................................... 20 1.6.1，bool 變量與“零值”進行比較...............................................................................20 1.6.2, float 變量與“零值”進行比較.................................................................................21 1.6.3，指針變量與“零值”進行比較...............................................................................21 1.6.4，else 到底與哪個if 配對呢？...............................................................................22 1.6.5，if 語句后面的分號............................................................................................... 23 1.6.6，使用if 語句的其他注意事項.............................................................................. 24 1.7，switch、case 組合........................................................................................................... 24 1.7.1，不要拿青龍偃月刀去削蘋果.............................................................................. 24 1.7.2，case 關鍵字后面的值有什么要求嗎？.............................................................. 25 1.7.3，case 語句的排列順序...........................................................................................25 1.7.4，使用case 語句的其他注意事項..........................................................................27 1.8，do、while、for 關鍵字................................................................................................... 28 1.8.1，break 與continue 的區別.....................................................................................28 1.8.2，循環語句的注意點...............................................................................................29 1.9，goto 關鍵字......................................................................................................................30 1.10，void 關鍵字....................................................................................................................31 1.10.1，void a？............................................................................................................31 1.10，return 關鍵字................................................................................................................. 34 1.11，const 關鍵字也許該被替換為readolny....................................................................... 34 1.11.2，節省空間，避免不必要的內存分配，同時提高效率.................................... 35 1.12，最易變的關鍵字----volatile.......................................................................................... 36 1.13，最會帶帽子的關鍵字----extern.................................................................................... 37 1.14，struct 關鍵字..................................................................................................................38
標簽： c語言深度剖析
上傳時間： 2015-05-01
上傳用戶：cascas
制作驅動程序的好工具.支持 ISA,EISA,PCI,Plug&Play 和 DMA.不需要牽涉到很低層的東西即可在很短的時間里編出驅動程序.內含教程.使用WinDriver的優點是:開發者并不需要熟悉任何內部操作系統或kernel programming或DDK及任何驅動程式.WinDriver同時允許開發者能在自己所熟悉的開發環境下,利用使用者模式(User Mode)如使用MSDEV Visual C/C++,Borland C++Builder,Delphi或任何Win32編譯器.使用WinDriver所開發的驅動程式均可用于Windows 9x,NT/2000,NT Embedded,CE Linux and Solaris等平臺.
上傳時間： 2015-06-02
上傳用戶：1663066023
