Make and answer phone calls Detect tone and pulse digit from the phone line Capture Caller ID Support blind transfer, single-step transfer/conference, consultation transfer/conference, hold, unhold. Control of the local phone handset, microphone and speaker of the modem Send and receive faxes Play and record on the phone line or sound card Play music in background mode Silence detection VU Meter Wave sound editor that allows your end-users to edit their own sound files. Voice recognition and voice synthesis. Full control over the serial port device ZModem file transfer utility File compression and encryption utility
上传时间： 2013-11-30
上传用户：水中浮云
从结构上来说，实时多任务操作系统包括两部分，一部分为操作系统内核(kernel)，即实时执行程序(Real Time Executive:RTX)，另一部分是输入输出部分(I/O)(注意开发系统不属于操作系统的范畴)；嵌入式系统对I/O的需求通常比较小(无文件系统需求)，因此很多实时多任务操作系统本质上就是一个实时执行程序，如AMX(Kadak)，VRTX(Microtec)，iRMX(Intel)等(这里的X即:eXecutive)，如果纯粹从kernel的角度来考察目前流行的各种实时多任务操作系统的性能，它们的效率差别都不大。 在市面上可以得到一些RTX的源代码(有用C实现的，有用汇编实现的，还有用PL/M语言实现的)，从internet上也可以荡一些下来(我介绍一个站点www.eg3.com，堪称世界电子工程师资源宝库)，下面我要介绍的一个RTX版本(我命名为SRTX:short RTX)，可以说是RTX中的元老级产品了，来自某研究所，九十年代初他们到美国考察，从美国某公司购得。五年以前，SRTX在国内有售，许多搞工控的研究所利用SRTX开发了一些大型或小型的产品,这里介绍的SRTX我作了一些简化和改动.
标签：
上传时间： 2015-12-09
上传用户：wang5829
Abstract: By using gateway systems on large 32-bit platforms, networks of small, 8- and 16-bit microcontrollers can be monitored and controlled over the Internet. With embedded Linux, these gateways are easily moved from full-blown host PCs to embedded platforms like the PC104. In this class you will learn about hardware platforms that support embedded Linux, Linux kernel configuration, feature selection, installation, booting and tuning.
标签： bit platforms Abstract networks
上传时间： 2014-01-05
上传用户：kytqcool
In a preemptive priority based RTOS, priority inversion problem is among the major sources of deadline violations. Priority inheritance protocol is one of the approaches to reduce priority inversion. Unfortunately, RTOS like uC/OS can’t support priority inheritance protocol since it does not allow kernel to have multiple tasks at the same priority. Although it has different ways to avoid priority inversion such as priority ceiling protocol, developers still have some difficulties in programming real time applications with it. In this paper, we redesign the uC/OS kernel to provide the ability to support round robin scheduling and implement priority inheritance semaphore on the modified kernel. As result, we port new kernel with priority inheritance semaphore to evaluation board, and evaluate the execution time of each of the kernel service as well as verify the operations of our implementation.
标签： priority preemptive inversion problem
上传时间： 2015-12-14
上传用户：气温达上千万的
经修正并验证过在 IAR MSP430 v3.42A 下编译正之 uC/OS-II For MSP430F149 的例程(修正一般网站上重复 Define 无法编译的问题),而且我以于 Simulator 内并设好了 Watch Dog Interrup 及观测的断点也设好了,可以直接于 IAR MSP430 下 Compiler 后再进 Debug Mode 执行即可正常执行于 app.c 下的 LED 闪烁任务调度工程.
上传时间： 2014-11-24
上传用户：bruce5996
Welcome to the software files for the ADS8361 to TMS320F2812! There are two project files in each of the folders McBSP, SPI and Both. Mode II and IV are explored using the McBSP port alone, as well as the SPI port. These projects are located in the SPI and McBSP folders. Modes I and III are explored using both McBSP and SPI. In Mode I, the M0 and M1 pins are controlled by use of the jumper on the evaluation module. A0 is controlled by the DX pin of the McBSP port. In Mode III, the A0, M0 and M1 pins are controlled via GPIO functions of PortF. The "SRC", "CMD" and "INCLUDE" files in the archive are from "C28x Peripheral Examples in C" (document # SPRC097). If you have questions about this or other Data Converter products, feel free to e-mail us at:
标签： files the software Welcome
上传时间： 2015-12-16
上传用户：lixinxiang
基于ecos的redboot，该包支持多种处理器。用户可以根据自己硬件平台，通过ecosconfig来配置，配置界面和编译linux kernel差不多。本包已经正对Intel IXP2400平台做了相应配置，硬件平台为双CUP架构。压缩文件中有更为详细的说明。
上传时间： 2014-01-09
上传用户：siguazgb
New users and old of optimization in MATLAB will find useful tips and tricks in this document, as well as examples one can use as templates for their own problems. Use this tool by editing the file optimtips.m, then execute blocks of code in cell mode from the editor, or best, publish the file to HTML. Copy and paste also works of course. Some readers may find this tool valuable if only for the function pleas - a partitioned least squares solver based on lsqnonlin. This is a work in progress, as I fully expect to add new topics as I think of them or as suggestions are made. Suggestions for topics I ve missed are welcome, as are corrections of my probable numerous errors. The topics currently covered are listed below
标签： optimization and document MATLAB
上传时间： 2015-12-24
上传用户：佳期如梦
VDSP++打开。This directory contains an example ADSP-BF537 RTC project that does a basic blink routine and then puts the part in deep sleep mode to be woken up from a RTC Stopwatch Event. Once woken up, the RTC is reconfigured to toggle the EZ KIT LEDs using RTC second, minute, hour, and day interrupts.
标签： directory contains ADSP-BF example
上传时间： 2015-12-29
上传用户：330402686
This paper examines the asymptotic (large sample) performance of a family of non-data aided feedforward (NDA FF) nonlinear least-squares (NLS) type carrier frequency estimators for burst-mode phase shift keying (PSK) modulations transmitted through AWGN and flat Ricean-fading channels. The asymptotic performance of these estimators is established in closed-form expression and compared with the modified Cram`er-Rao bound (MCRB). A best linear unbiased estimator (BLUE), which exhibits the lowest asymptotic variance within the family of NDA FF NLS-type estimators, is also proposed.
标签： performance asymptotic examines non-data
上传时间： 2015-12-30
上传用户：225588
