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MESSAGE-Digest

  • 定時(shí)中斷程序

    定時(shí)中斷程序,源碼的注釋十分詳細(xì),具體功能如下: 1.Frame 實(shí)現(xiàn)能有效降低VxWorks 內(nèi)存管理內(nèi)部/外部碎片的機(jī)制。 2. Frame 實(shí)現(xiàn)為系統(tǒng)提供軟定時(shí)器功能的機(jī)制,定時(shí)器timeout 信息以message 或其他快捷有效方式通知定時(shí)器申請(qǐng)者(Task)。 3. 參考實(shí)驗(yàn)一要求,系統(tǒng)中每個(gè)Task 擁有自己的Message Queue,以此方式作為系統(tǒng)的消息驅(qū)動(dòng)基礎(chǔ)。 4. 系統(tǒng)中各Task 應(yīng)使用同一類型框架,即統(tǒng)一的Task 框架。 5. 系統(tǒng)內(nèi)實(shí)體(Task/ISR)間傳遞的消息應(yīng)有統(tǒng)一格式(消息頭+消息體),可分短消息和長(zhǎng)消息,但消息頭須至少包含消息ID。系統(tǒng)內(nèi)所有消息均有其唯一ID 標(biāo)識(shí)。

    標(biāo)簽: 定時(shí)中斷 程序

    上傳時(shí)間: 2016-04-02

    上傳用戶:BOBOniu

  • Siproxd is a proxy/masquerading daemon for the SIP protocol. It handles registrations of SIP client

    Siproxd is a proxy/masquerading daemon for the SIP protocol. It handles registrations of SIP clients on a private IP network and performs rewriting of the SIP message bodies to make SIP connections work via an masquerading firewall (NAT). It allows SIP software clients (like kphone, linphone) or SIP hardware clients (Voice over IP phones which are SIP-compatible, such as those from Cisco, Grandstream or Snom) to work behind an IP masquerading firewall or NAT router

    標(biāo)簽: registrations masquerading SIP protocol

    上傳時(shí)間: 2016-04-10

    上傳用戶:fnhhs

  • 練習(xí)并掌握多任務(wù)實(shí)時(shí)操作系統(tǒng)下Task 調(diào)度、Task 間主要通信手段(信號(hào)量、消息隊(duì)列等)、RISC 處理器 I/O 端口控制等內(nèi)容

    練習(xí)并掌握多任務(wù)實(shí)時(shí)操作系統(tǒng)下Task 調(diào)度、Task 間主要通信手段(信號(hào)量、消息隊(duì)列等)、RISC 處理器 I/O 端口控制等內(nèi)容,并形成嵌入式實(shí)時(shí)應(yīng)用軟件的良好編程習(xí)慣。創(chuàng)建多Task,為每個(gè)Task 創(chuàng)建私有的Message Queue,每個(gè)Task 只通過(guò)自己的私有Message Queue 接收消息;Task 間消息通信通過(guò)向?qū)Ψ剿接蠱essageQueue 發(fā)送消息完成。 Task1:管理Task。負(fù)責(zé)系統(tǒng)啟動(dòng)時(shí)同步系統(tǒng)中其他Task 的啟動(dòng)同步,利用信號(hào)量的semFlush()完成。同時(shí)接收各Task 的告警信息,告警信息需編號(hào)以logmsg 方式輸出。本task 負(fù)責(zé)系統(tǒng)結(jié)束時(shí)的Task 刪除處理。 Task2:console 命令行接收Task。接收并分析console 發(fā)來(lái)的命令行及參數(shù)。自行設(shè)置5 種以上命令,并根據(jù)命令的內(nèi)容向Task3 或/及Task4 發(fā)送激勵(lì)消息。同時(shí)實(shí)現(xiàn)系統(tǒng)退出命令,使系統(tǒng)采用適當(dāng)方式安全退出。收到非法命令向Task1告警。 Task3:Led 控制Task。接收Led 控制消息(命令),自定義Led 顯示方式表現(xiàn)命令執(zhí)行情況。本task 應(yīng)負(fù)責(zé)led 相關(guān)I/O port 初始化。收到非法led 控制命令向Task1 告警。 Task4:console 輸出Task。接收需打印輸出的字串消息(命令),輸出到console。收到長(zhǎng)度為0 或超常字串向Task1 告警。

    標(biāo)簽: Task RISC 多任務(wù) 信號(hào)量

    上傳時(shí)間: 2016-04-12

    上傳用戶:iswlkje

  • Alphanumeric messages are encoded in POCSAG format and send to the serial port of a computer. The mo

    Alphanumeric messages are encoded in POCSAG format and send to the serial port of a computer. The modem connects to the serial port of a computer and sends the message on the air through a transmitter.

    標(biāo)簽: Alphanumeric messages computer encoded

    上傳時(shí)間: 2013-12-12

    上傳用戶:jkhjkh1982

  • 3rd Generation Partnership Project Technical Specification Group Terminals Technical realization

    3rd Generation Partnership Project Technical Specification Group Terminals Technical realization of the Short Message Service

    標(biāo)簽: Technical Specification Partnership realization

    上傳時(shí)間: 2014-01-24

    上傳用戶:1966640071

  • Is a Application Demo (an example) of how to use the package LCD in order to make an application sta

    Is a Application Demo (an example) of how to use the package LCD in order to make an application stand alone that show a scrolling message on display.

    標(biāo)簽: Application application example package

    上傳時(shí)間: 2016-05-29

    上傳用戶:tianyi223

  • Tasks Read the textbook about the details of Vigenére Cipher. Implement the algorithm by C or C++.

    Tasks Read the textbook about the details of Vigenére Cipher. Implement the algorithm by C or C++. Requirements You do this lab in a group of two students. Your program should have input and output as follows: csci>a.out --> Please input the key: receptive --> Please input the plain text: wearediscoveredsaveyourself --> The cipher text is : nicvtwqngfzgvtwavzvcqyglmgj -->The original message is: wearediscoveredsaveyourself • You should test your program with several runs.

    標(biāo)簽: the Implement algorithm textbook

    上傳時(shí)間: 2013-12-21

    上傳用戶:bruce5996

  • SPI communication between a single master and slave. Including a LCD controller that display the rec

    SPI communication between a single master and slave. Including a LCD controller that display the receiving message from the SPI bus.

    標(biāo)簽: communication controller Including between

    上傳時(shí)間: 2013-12-18

    上傳用戶:nanxia

  • * The functions debug_init() and debug() implement non-RTOS * serial port initialization and a blo

    * The functions debug_init() and debug() implement non-RTOS * serial port initialization and a blocked debug output. The * debug() function can be used in error message and die * situations.

    標(biāo)簽: initialization debug_init functions and

    上傳時(shí)間: 2016-07-24

    上傳用戶:caozhizhi

  • WDM 驅(qū)動(dòng)程序

    WDM 驅(qū)動(dòng)程序,包含插件及處理方法。 Shows how to implement a simple WDM driver, including Plug and Play message handling using NuMega s policy interfaces

    標(biāo)簽: WDM 驅(qū)動(dòng)程序

    上傳時(shí)間: 2013-12-24

    上傳用戶:yuanyuan123

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