TIOMAP3440高性能移动多媒体方案

TI 公司的OMAP3440高性能移动多媒体应用处理器，采用工作在800 MHz的超标量ARM A8是OMAP 3平台中最新的产品，首个把全HD摄像机功能带到移动设备中，支持720p HD视频录像和播放。

广泛应用在移动互联网设备(MID)上，使用户能录制高分辨率的视频以及在最新智能手机和MID上的显示最新功能。本文介绍了OMAP3440的主要性能，方框图以及Synopsys 与TI共同开发的VPOM-3430 虚拟平台主要性能和方框图。

Pushing mobile multimedia boundaries, TI introduces the OMAP3440 processor, the newest addition to the OMAP™ 3 platform. The OMAP3440 processor offers increased performance and advanced multimedia benefits targeting applications that require high performance, such as the mobile Internet device (MID) market. TI’s new OMAP3440 is the industry’s first applications processor to bring full HD camcorder functionality to mobile devices, giving users the ability to record high-definition (HD) video, as well as enjoy new applications enabled by the large displays in the latest Smartphones and Mobile Internet Devices (MIDs). The OMAP3440 leverages TI’s high performance IVA™ 2+ multimedia accelerator to support 720p HD video record and playback, unleashing user creativity behind the lens. Additionally, at the heart of the OMAP3440 is a superscalar ARM® Cortex™-A8 that provides 800 MHz of performance to enhance applications that take advantage of the larger displays used in MIDs.

图1. OMAP3440方框图

Productivity. Like the rest of the OMAP 3 product family, the OMAP3440 integrates the ARM Cortex-A8 superscalar microprocessor core. Combined with TIs technology in the OMAP3440, the ARM Cortex-A8 enables faster user interfaces, faster data access and boosts productivity and entertainment applications on the mobile phone, while maintaining power efficiencies expected in a handset.

OMAP3440主要特性：

The OMAP™ 3 architecture combines mobile entertainment with high performance productivity applications
Industrys first processor with advanced Superscalar ARM® Cortex™-A8 RISC core enabling 3x gain in performance
Industrys first processor designed in 65-nm CMOS process technology adds processing performance
IVA™ 2+ (Image Video Audio) accelerator enables multi-standard (MPEG4, WMV9, RealVideo, H263, H264) encode/decode at D1 (720x480 pixels) 30 fps
Integrated image signal processor (ISP) for faster, higher-quality image capture and lower system cost
Flexible system support
Composite and S-video TV output
XGA (1024x768 pixels), 16M-color (24-bit definition) display support
Flatlink™ 3G-compliant serial display and parallel display support
High Speed USB2.0 On-The-Go support
Seamless connectivity to Hard Disk Drive (HDD) devices for mass storage
Leverages SmartReflex™ technologies for advanced power reduction
M-shield™ mobile security enhanced with ARM TrustZone™ support
Software-compatible with OMAP™ 2 processors
HLOS support for customizable interface
VPOM-3430 虚拟平台
Synopsys has worked with Texas Instruments to create virtual, high performance software simulations of the TI OMAP™ Platforms.
Virtual Platforms (VP) power dramatic gains in developer productivity by integrating with the software developers preferred development environment, delivering a complete desktop development environment for application, middleware, operating system and driver development. The VP integrates with software developers development tools of choice including Microsofts Platform Builder and eMbedded Visual Tools, Lauterbach Trace32®, ARM® RealView™ and more. With this fast full-function software emulation, software developers can start developing and integrating their software today before hardware availability with the following capabilities:

Runs actual TI OMAP Platform targeted binaries - no cross compiling
Includes real-world connections such as serial, network and video streaming
Provides efficient heterogeneous multi-core debug
Allows camera application development and test through a USB camera connected to the host computer and from a video file
Interfaces to compatible debuggers (such as TI Code Composer Studio, Lauterbach Trace32® and ARM RealView) - see VP data sheets for specifics Provides high level of system visibility and control, though breakpointing and
single-stepping inside peripheral hardware models
Emulates many system peripherals, such as MMC cards, and subsystems such as Imaging Video Accelerator (IVA) and Audio/Power Management ICs - depending on the particular OMAP Platform
View system registers and variables inside peripheral hardware models
Provides low-level execution control and visibility into the CPU and the peripheral components
Features photo realistic Innovator device skin with emulated touch screen
Synopsys and Texas Instruments have created the VPOM-3430 Virtual Platform for advanced mobile phone video and imaging development. This virtual platform is a high performance software simulator of the OMAP3430 Software Development Platform (SDP3430). The OMAP3430 processor is the first member of the Texas Instruments OMAP™ 3 architecture, which combines mobile entertainment capabilities with high-performance productivity applications for building new classes of devices. The OMAP3430 processor is the industrys first applications processor based on the ARM Cortex-A superscalar architecture with ARM NEON technology. With this fast full-function software simulation, software developers can start developing and integrating their software long before hardware becomes available. VPOM-3430 powers dramatic gains in developer productivity by integrating with the software developers preferred development environment for application, middleware, operating system and driver development. Save software development time and improve developer productivity by:

图2. VPOM-3430 虚拟平台方框图

VPOM-3430 虚拟平台主要性能：

Early access to the OMAP3430 technologies including the ARM Cortex and NEON, and IVA 2+
Faster turnaround time when developing and testing OS images and applications
Quicker debug with superior control and visibility into hardware, including hardware breakpoints and ARM ETM trace generation
Easier deployment to developers than hardware boards
Accelerated final test and integration - save up to 80%
Simplified collaboration among extended team members via electronic distribution
Graphics
The OMAP3430 graphics subsystem incorporates the next-generation video, imaging and audio accelerator 2 (IVA™ 2+) standard, enabling system designers to have access to a full simulation of the accelerator before hardware becomes available. This feature allows developers to efficiently transition from TIs first generation IVA to the second generation IVA 2+ technology and benefit from this new technology today. VPOM-3430 also allows developers to develop, integrate and test advanced multimedia applications and middleware in advance of hardware.

Power Management
The simulation of TIs TWL4030 Audio/Power Management ICs allows software developers the ability to fully understand the interaction of their software with hardware power management on the OMAP platform as well as on the chip power management hardware. The virtual platform allows control of the power management hardware and provides insights into the interaction of the hardware with the independent power management services of the operating system. Developers can visualize the applied system voltage scaling over time through advanced time graphs and can verify that desired power states have been invoked or implemented correctly by detailed logging of all power events through power dashboards and frequency dashboards.
Advanced Heterogeneous Multi-core Debugging
The VPOM-3430 Virtual Platform enables greater debug visibility and efficiency by providing heterogeneous and homogeneous multi-core debugger support including Texas Instruments Code Composer Studio™. Debugging multi-core SoC with Synopsys is more efficient than JTAG and physical hardware because JTAG scan chains only stop one processor at a time. This makes it nearly impossible for the developer to understand the exact system state with the other processors, which continue running. In the VPOM-3430 Virtual Platform, the entire set of on-chip cores, including the ARM and DSP cores, stop when either a software or hardware breakpoint is reached. This allows unsurpassed debug visibility into the complete system and greatly increases developer productivity.

Virtual Platform Capablities
The VPOM-3430 Virtual Platform enables early (pre-silicon) software development and early hardware/software integration of embedded system designs using the TI OMAP3430 Software Development Platform (SDP3430). It improves software developers productivity in both the turnaround time of testing new images and the impact of isolating and fixing problems. The VPOM-3430 is capable of running real target application binaries and operating systems built to run on the TI OMAP3430 Software Development Platform (SDP3430). This virtual platform supports software development for the ARM Cortex A MPU and provides real-world connections such as video streaming from USB camera and network.

Runs actual ARM Cortex-A and C64x DSP binaries targeted for the OMAP3430 Software Development Platform - no cross compiling
Integrates with the software development tools of choice including: TIs Code Composer Studio, Lauterbach TRACE32, ARM RealView, and the GNU tool chain

Allows efficient heterogeneous multi-core debug
Provides high level of system visibility and control, through novel breakpointing and single-stepping capabilities and by viewing of system registers and variables inside peripheral hardware models
Includes real-world connections through the host PC including: camera, USB, serial ports, Ethernet and audio codecs
Supports video and graphics processing software development
Provides low-level execution control and visibility into the CPU and the peripheral components

Synopsys offers two product packages for VPOM-3430, a standard Virtual Platform (VP) and a Platform Development Kit (PDK). With the VP, a developer can create and test new software configurations to boot operating systems, run applications or develop low-level drivers. These can include preset hardware configurations like switch settings and COM port settings required for the software under development. The PDK offers the added ability to customize platform hardware by using the authoring tools included with the PDK license. A developer can add user-defined instrumentation to easily profile software operations and collect execution statistics. In addition, the VPOM-3430 PDK provides a customizable user interface and graphic skins for early usability evaluation.

Configurations
Supported Configurations
Linux®
Symbian OS™ ver. 9.1
Virtual Components
VPOM-3430 Virtual Platform is based on the OMAP3430 Software DevelopmentPlatform which includes the OMAP3430 System on Chip (SoC) along with all the board components and peripherals. This platform also includes the development boards that contain the audio codec and touch screen controller (TSC21001), camera interface (OV9640), various flash memory models and more. VPOM-3430 models all the critical features required for mobile phone, portable media player, and PDA development including:

ARM Cortex-A processor and TI C64x DSP
Power management
Imaging and Video Accelerator (IVA2+)
Connectivity peripherals including MMC, Ethernet, camera, user interfaces, board switches, and LCD touch screen.
Below is the detailed listing of the virtual components modeled on the VPOM-3430 Virtual Platform.