本設計是一個簡單的行編輯器。它主要能實現五個主要內容: 1、字符的按行錄入及儲存;2、文件內容的顯示;3、文件內容的查找;4、文件內容的替換5、文件的修改。 設計按數標準I/O下文件系統軟件工程的方法進行,系統應具有良好的界面、必要的交互信息和較好的健壯性;醒目美觀的軟件封面。操作人員能快捷簡單地進行操作。
上傳時間: 2016-02-27
上傳用戶:朗朗乾坤
The PCI Local bus concept was developed to break the PC data I/O bottleneck and clearly opens the door to increasing system speed and expansion capabilities. The PCI Local bus moves high speed peripherals from the I/O bus and places them closer to the system’s processor bus, providing faster data transfers between the processor and peripherals. The PCI Local bus also addresses the industry’s need for a bus standard which is not directly dependent on the speed, size and type of system processor. It represents the first microprocessor independent bus offering performance more than adequate for the most demanding applications such as full-motion video.
標簽: bottleneck developed the concept
上傳時間: 2014-12-03
上傳用戶:ikemada
The PCI Local bus concept was developed to break the PC data I/O bottleneck and clearly opens the door to increasing system speed and expansion capabilities. The PCI Local bus moves high speed peripherals from the I/O bus and places them closer to the system’s processor bus, providing faster data transfers between the processor and peripherals. The PCI Local bus also addresses the industry’s need for a bus standard which is not directly dependent on the speed, size and type of system processor. It represents the first microprocessor independent bus offering performance more than adequate for the most demanding applications such as full-motion video. Hardware reference
標簽: bottleneck developed the concept
上傳時間: 2016-03-18
上傳用戶:極客
The PCI Local bus concept was developed to break the PC data I/O bottleneck and clearly opens the door to increasing system speed and expansion capabilities. The PCI Local bus moves high speed peripherals from the I/O bus and places them closer to the system’s processor bus, providing faster data transfers between the processor and peripherals. The PCI Local bus also addresses the industry’s need for a bus standard which is not directly dependent on the speed, size and type of system processor. It represents the first microprocessor independent bus offering performance more than adequate for the most demanding applications such as full-motion video. User Manual
標簽: bottleneck developed the concept
上傳時間: 2014-01-15
上傳用戶:努力努力再努力
實現最優二叉樹的構造;在此基礎上完成哈夫曼編碼器與譯碼器。 假設報文中只會出現如下表所示的字符: 字符 A B C D E F G H I J K L M N 頻度 186 64 13 22 32 103 21 15 47 57 1 5 32 20 57 字符 O P Q R S T U V W X Y Z , . 頻度 63 15 1 48 51 80 23 8 18 1 16 1 6 2 要求完成的系統應具備如下的功能: 1.初始化。從終端(文件)讀入字符集的數據信息,。建立哈夫曼樹。 2.編碼:利用已建好的哈夫曼樹對明文文件進行編碼,并存入目標文件(哈夫曼碼文件)。 3.譯碼:利用已建好的哈夫曼樹對目標文件(哈夫曼碼文件)進行編碼,并存入指定的明文文件。 4.輸出哈夫曼編碼文件:輸出每一個字符的哈夫曼編碼。
上傳時間: 2014-11-23
上傳用戶:shanml
C51實用程序(45個) I/O、定時器、中斷、看門狗、計數器、軟件AD、VB串口、93c06驅動、24c02系列驅動、7219、20045、軟件陷阱、串口中斷、碼值轉換、AVR通訊、IIC、DS1302、DS1820、SPI、1602、12232、12864、T6963、1330、PC鍵、鍵盤輸入法、智能化、飛機游戲、貪吃蛇、多級菜單實例等
上傳時間: 2016-06-17
上傳用戶:hasan2015
熟悉D/A轉換芯片的使用 把待轉換的數據送D/A芯片TLC5615,開啟D/A轉換 用萬用表或者示波器觀察輸出口(CON36)的電壓 硬件要求:撥碼開關S8全部置ON 其他撥碼開關全部置O
上傳時間: 2013-12-15
上傳用戶:zxc23456789
adctest S3C44B0X內置A/D轉換器應用實例; einttest S3C44B0X外部中斷實例; flashtest flash讀寫實例; Helloworld Helloworld程序; iictest IIC接口運用實例; iotest I/O應用實例——矩陣式鍵盤掃描; rtctest S3C44B0X內置RTC應用實例; Timertest 定時器應用實例; uarttest UART串行口應用實例; ucos_ex1 uc/os-II運用之一:多任務; ucos_ex2 uc/os-II運用之二:任務間通訊; ucos_ex3 uc/os-II運用之三:中斷服務程序;
標簽: Helloworld S3C44B0X flashtest einttest
上傳時間: 2014-01-13
上傳用戶:xc216
adctest S3C44B0X內置A/D轉換器應用實例; einttest S3C44B0X外部中斷實例; flashtest flash讀寫實例; Helloworld Helloworld程序; iictest IIC接口運用實例; iotest I/O應用實例——矩陣式鍵盤掃描; rtctest S3C44B0X內置RTC應用實例; Timertest 定時器應用實例; uarttest UART串行口應用實例; ucos_ex1 uc/os-II運用之一:多任務; ucos_ex2 uc/os-II運用之二:任務間通訊; ucos_ex3 uc/os-II運用之三:中斷服務程序;
標簽: Helloworld S3C44B0X flashtest einttest
上傳時間: 2016-07-05
上傳用戶:wanghui2438
程序名稱: 數碼管顯示與鍵盤管理芯片ZLG7289的標準驅動程序(C51) 文件名: ZLG7289.h ZLG7289.C 說明: 本程序已經調試通過 程序的可移植性很好,僅做少量修改就可以直接包含使用 程序占用資源少,僅使用4根必須I/O口線,不占用定時器等其它資源 所有全局性的標識符都以ZLG7289_開頭,不必擔心命名沖突問題 程序結構清晰,思路明確,結合ZLG7289的數據手冊很容易理解 用法: 1、重新定義I/O接口 2、如果CPU的主頻比較高,則要適當調整延時,詳見ZLG7289_Delay()函數 3、在用戶程序中包含本頭文件 4、在main()函數的開始處添加初始化函數ZLG7289_Init() 5、以后在程序中可以直接使用ZLG7289的用戶指令集 6、讀取鍵盤掃描碼使用函數ZLG7289_Key(),查詢方式、中斷方式皆可
上傳時間: 2013-12-09
上傳用戶:zhangzhenyu