polycom dma

In January 17, 2013, as organizations began to focus on accelerating video communication and business processes with video functions, ATT and Polycom announced a strategic cooperation agreement to create personalized, mobile, and virtualized video conferences. With ATT Business Exchange, MPLS, Internet and mobile networks, and the Polycom RealPresence platform, both parties will use this Protocol to create

In fact, I tested the first polycom CX600, is very human, very good one phone.650) this.width=650; "height=" 174 "title=" clip_image002 "style=" margin:0px;border:0px;padding-top:0px; Padding-right:0px;padding-left:0px;background-image:none, "alt=" clip_image002 "src=" http://s3.51cto.com/wyfs02/ M00/89/e2/wkiol1ggkewatzxiaaaidh4nvfu235.jpg "border=" 0 "/> 650) this.width=650; height=" title= "Clip_ image004 "style=" Margin:0px;border:0px;padding-top:

Yesterday boss threw me a polycom duo conference call and showed me how to connect to Cisco's voice phone system. After some tossing, the beans successfully registered this voice phone. Because Polycom does not support Cisco's Corp directory, I have to manually configure LDAP so that he can query the phone directory of the company's employees.650) this.width=650; "src=" http://s1.51cto.com/wyfs02/M01/76/90/

Recent projects need to upgrade the Polycom CX600 version from 4.0.7577.4455 to the latest version 4.0.7577.4512.First, Polycom CX600 upgrade file Download:https://www.microsoft.com/zh-CN/download/details.aspx?id=23866650) this.width=650; "Src=" Http://s2.51cto.com/wyfs02/M02/8C/17/wKiom1hhvfCyjxdNAAAV-NQ4ltQ035.jpg-wh_500x0-wm_3 -wmp_4-s_1188376065.jpg "title=" cx600 upgrade file download. jpg "alt=" wkiom

Release date:Updated on: 2013-03-18 Affected Systems:Polycom HDX 9000Polycom HDX 8000Polycom HDX 7000Polycom HDX 6000Description:--------------------------------------------------------------------------------Bugtraq id: 58523Polycom HDX is a series of HD network cameras. The Polycom HDX series has an authorization Security Bypass Vulnerability. Attackers can exploit this vulnerability to bypass certain security restrictions and illegally access aff

Release date:Updated on: 2013-03-18 Affected Systems:Polycom HDX 9000Polycom HDX 8000Polycom HDX 7000Polycom HDX 6000Description:--------------------------------------------------------------------------------Bugtraq id: 58524Polycom HDX is a series of HD network cameras. The Polycom HDX series uses incorrectly filtered user input in SQL queries. The SQL injection vulnerability exists in the implementation. Attackers can exploit this vulnerability t

Release date:Updated on: 2013-03-18 Affected Systems:Polycom HDX 9000Polycom HDX 8000Polycom HDX 7000Polycom HDX 6000Description:--------------------------------------------------------------------------------Bugtraq id: 58525Polycom HDX is a series of HD network cameras. The Polycom HDX series uses incorrectly filtered user input as the Format Indicator of the formatted-printing function. The format string vulnerability exists in implementation, at

What does DMA mean? What is DMA? The English spelling of DMA is "Direct MemoryAccess, which means direct memory access, is a data exchange mode that directly accesses data from the memory without going through the CPU. In PIO modeCPU control. In DMA mode, the CPU only needs to issue commands to the

In some cases, for example, if you want to use DAC to output a sine wave, the simplest idea is to use a Timer for an interruption and assign a new value to the DAC during the interruption, and the DAC conversion is triggered. In this way, there will be some drawbacks. For example, in a complex system, there will be many interruptions, and Timer's interruption priority cannot always be the highest. Therefore, there may be problems in phase. In addition, interruption increases the power consumptio

Memory ing and DMA, memory ing DMA 1. the implementation process of mmap system calling. The system calling directly maps the device memory to the address space of the user process. 2. How to map the user space memory to the kernel (get_user_pages ). 3. Direct Memory Access (DMA), which enables peripherals to directly access the system memory. Address type in li

Tags: htm embedded detail Linux SYN Stat management cache. NetHTTP://BLOG.CSDN.NET/LIKEPING/ARTICLE/DETAILS/42235111 DMA management under LinuxHTTP://BLOG.CSDN.NET/SKYFLYING2012/ARTICLE/DETAILS/48023447 Cache and memory consistency.Http://www.360doc.com/content/16/0510/07/478627_557742072.shtmlHTTP://LYL19.BLOG.163.COM/BLOG/STATIC/1942720552013310103745840/DMA Memeryhttp://blog.csdn.net/cywosp/article/detai

DMA is a hardware capability that enables hardware to read and write data directly from main memory, i.e. it can directly use main memory for I/O without the need for processor intervention, which can save processor resources and improve IO throughput across the system because IO operations are relatively slow, If processor resources are used for each IO, there is no thought that it will consume a large amount of CPU time on a single IO, resulting in

Recently, I was busy with the driver, so I sorted out the basic programming of DMA for S3C2410 and the related register operations for DMA.I. Principle of DMA access1. Overview of DMA (driect Memory Access) AccessWhen the system memory needs to quickly transfer big data between high-speed peripherals or different areas of the memory, the query and interruption me

1.DMA Channel The DMA(Direct Memory access) channel is built between the device and RAM, andDMAC(DMA controler) interacts with the device I/O controller to implement data transfer. In the PC, the DMA controller is on the South Bridge on the motherboard that is responsible for managing the I/O bus. A typical PC arch

Parallel line difference indicator-DMA The DMA indicator is also called the parallel line difference indicator. It is a medium-and short-term indicator in the current stock market analysis Technical indicator. It is often used for the analysis and determination of the index and individual stocks. Section 1 principles and calculation methods of DMA indicators I.

If you never meet, maybe the mood will never be heavy if you miss it, you may not be able to take it easy in your life. A look is enough to xinhai the hurricaneA deeper understanding of the landscape in the barren land a journey is enough to haggard a weak heartEvery look at the eyes of the ripples will want to tears to death how can not leisurely love and how can not be indifferentJust love each other once is a life without regretsMaybe, never a day as bright as the future, maybe, never the day

Introduction to DMA and Direct Memory Access for STM32, dmastm32 The first time I came into contact with DMA, I learned the arm9-bare-board program at school. I thought it was almost two years later. Now let's take a look at the dma of the STM32 platform. With the support of the standard peripheral library, the DMA pro

DMA typically includes system DMA and Bus-master DMA. The difference is that system DMA is dependent on systems, and the device itself does not have the ability to control the transmission of DMA, whereas the Bus-master device has the ability to control transmission with

Simple Introduction Many types of driver programming require knowledge of how some virtual memory subsystems work When it comes to more complex, performance-demanding subsystems, the content discussed in this chapter will sooner or later be used The contents of this chapter are divided into three parts Describe the implementation process for MMAP system calls Describes how to access the memory pages of user space directly across borders Descr

DMA programmingDMA is a hardware mechanism that requires no CPU to participate in two-way data transfer between peripherals and system memory, using DMA to get the system CPU out of the actual I/O data transfer process, thus greatly improving the throughput rate of the system.DMA mode of data transmission is controlled by the DMA controller, during transmission,