定时中断程序,源码的注释十分详细,具体功能如下: 1.Frame 实现能有效降低VxWorks 内存管理内部/外部碎片的机制。 2. Frame 实现为系统提供软定时器功能的机制,定时器timeout 信息以message 或其他快捷有效方式通知定时器申请者(Task)。 3. 参考实验一要求,系统中每个Task 拥有自己的Message Queue,以此方式作为系统的消息驱动基础。 4. 系统中各Task 应使用同一类型框架,即统一的Task 框架。 5. 系统内实体(Task/ISR)间传递的消息应有统一格式(消息头+消息体),可分短消息和长消息,但消息头须至少包含消息ID。系统内所有消息均有其唯一ID 标识。
上传时间: 2016-04-02
上传用户:BOBOniu
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
标签: registrations masquerading SIP protocol
上传时间: 2016-04-10
上传用户:fnhhs
练习并掌握多任务实时操作系统下Task 调度、Task 间主要通信手段(信号量、消息队列等)、RISC 处理器 I/O 端口控制等内容,并形成嵌入式实时应用软件的良好编程习惯。创建多Task,为每个Task 创建私有的Message Queue,每个Task 只通过自己的私有Message Queue 接收消息;Task 间消息通信通过向对方私有MessageQueue 发送消息完成。 Task1:管理Task。负责系统启动时同步系统中其他Task 的启动同步,利用信号量的semFlush()完成。同时接收各Task 的告警信息,告警信息需编号以logmsg 方式输出。本task 负责系统结束时的Task 删除处理。 Task2:console 命令行接收Task。接收并分析console 发来的命令行及参数。自行设置5 种以上命令,并根据命令的内容向Task3 或/及Task4 发送激励消息。同时实现系统退出命令,使系统采用适当方式安全退出。收到非法命令向Task1告警。 Task3:Led 控制Task。接收Led 控制消息(命令),自定义Led 显示方式表现命令执行情况。本task 应负责led 相关I/O port 初始化。收到非法led 控制命令向Task1 告警。 Task4:console 输出Task。接收需打印输出的字串消息(命令),输出到console。收到长度为0 或超常字串向Task1 告警。
上传时间: 2016-04-12
上传用户:iswlkje
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.
标签: Alphanumeric messages computer encoded
上传时间: 2013-12-12
上传用户:jkhjkh1982
3rd Generation Partnership Project Technical Specification Group Terminals Technical realization of the Short Message Service
标签: Technical Specification Partnership realization
上传时间: 2014-01-24
上传用户:1966640071
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.
标签: Application application example package
上传时间: 2016-05-29
上传用户:tianyi223
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.
标签: the Implement algorithm textbook
上传时间: 2013-12-21
上传用户:bruce5996
SPI communication between a single master and slave. Including a LCD controller that display the receiving message from the SPI bus.
标签: communication controller Including between
上传时间: 2013-12-18
上传用户:nanxia
* 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.
标签: initialization debug_init functions and
上传时间: 2016-07-24
上传用户:caozhizhi
WDM 驱动程序,包含插件及处理方法。 Shows how to implement a simple WDM driver, including Plug and Play message handling using NuMega s policy interfaces
上传时间: 2013-12-24
上传用户:yuanyuan123