TI DM370数字媒体处理器开发评估方案

发布时间：2012-2-3 10:08 发布者：1770309616

TI 公司的DM370/DM3725是高性能数字媒体应用处理器,采用先进的45nm工艺以及和OMAP™ 3兼容的架构,集成了高达1GHz ARM® Cortex™-A8内核, NEON SIMD协处理器和高达800MHz TMS320C64x+™ DSP核,主要用在手持数据终端,导航,音频娱乐系统,医疗图像,家庭自动化, 工业控制,测试测量和单板机等.本文介绍了DM370/DM3725主要特性, 功能方框图以及AM/DM37x评估模块(EVM)主要特性,系统框图,功能方框图, 处理器模块电路图和材料清单, 电源模块电路图和材料清单, 评估模块(EVM)主板电路图和材料清单与主板元件布局图.

DM3730, DM3725 Digital Media Processors

The DM37x generation of high-performance, applications processors are based on the enhanced device architecture and are integrated on TI’s advanced 45-nm process technology. This architecture is designed to provide best in class ARM and Graphics performance while delivering low power consumption. This balance of performance and power allow the device to support the following example applications:

Portable Data Terminals

Navigation

Auto Infotainment

Gaming

Medical Imaging

Home Automation

Human Interface

Industrial Control

Test and Measurement

Single board Computers

The device can support numerous HLOS and RTOS solutions including Linux and Windows Embedded CE which are available directly from TI.

DM37x主要特性:

DM3730, DM3725 Digital Media Processors:

Compatible with OMAP™ 3 Architecture

ARM® microprocessor (MPU) Subsystem

Up to 1-GHz ARM® Cortex™-A8 Core, Also supports 300, 600, and 800-MHz

NEON SIMD Coprocessor

High Performance Image, Video, Audio (IVA2.2™) Accelerator Subsystem

Up to 800-MHz TMS320C64x+™ DSP Core

Enhanced Direct Memory Access (EDMA) Controller (128 Independent Channels)

Video Hardware Accelerators

POWER SGX™ Graphics Accelerator (DM3730 only)

Tile Based Acrchitecture Delivering up to 20 MPoly/sec

Universal Scalable Shader Engine: Multi-threaded Engine Incorporating Pixel and Vertex Shader Functionality

Industry Standard API Support: OpenGLES 1.1 and 2.0, OpenVG1.0

Fine Grained Task Switching, Load Balancing, and Power Management

Programmable High Quality Image Anti-Aliasing

Advanced Very-Long-Instruction-Word (VLIW) TMS320C64x+™ DSP Core Eight Highly Independent Functional Units

Six ALUs (32-/40-Bit); Each Supports Single 32- bit, Dual 16-bit, or Quad 8-bit, Arithmetic per Clock Cycle

Two Multipliers Support Four 16 × 16-Bit Multiplies (32-Bit Results) per Clock Cycle or Eight 8 × 8-bit Multiplies (16-Bit Results) per Clock Cycle

Load-Store Architecture With Non-Aligned Support

图1.DM3730/25功能方框图

AM/DM37x评估模块(EVM)

Developed with Mistral, the AM/DM37x Evaluation Module (EVM) enables developers to immediately start evaluating AM37x or DM37x processors (DM3730, DM3725, AM3715, AM3703) and begin building solutions, including portable multimedia, portable data terminals, portable medical equipment, portable communications, home and building automation, navigation systems, test and measurement, smart displays and human machine interaction (HMI) industrial interfaces amongst many others.

The AM37x EVM is based on TI’s AM3715 applications processor. The Hynix memory is interfaced to the AM3715 processor via Package-On-Package technology. The Hynix PoP memory supports 2Gbit NAND flash and 2 Gbit Mobile DDR SDRAM. The DDR memory and NAND Flash are connected to SDRAM controller (SDRC) and General Purpose memory Controller (GPMC) interfaces of processor respectively.

It is also equipped with a 3.7” TFT LCD module. This LCD Module is interfaced to the Display subsystem (DSS) interface of the processor.

Analog Video outputs of EVM support both Composite TV (CVBS) output and Svideo output on the main board. The CVBS or S-Video Outputs are available on respective connector by default.
AM37x EVM supports multiple video input options through AM3715’s camera port.

Any one of the below interface shall be active at a given point of time.

1. S-Video Input, digitized through Video decoder (TVP5146PFP)

2. Composite Video Input through Video decoder (TVP5146PFP)

3. Component Video Input through Video decoder (TVP5146PFP)

4. Camera Interface – 26-Pin camera connector to support Micron Camera Module

5. Camera Interface – Provision for LI-3M02CM camera module

The EVM has a SD/MMC slot using SD/MMC1 interface on the main board. And the SD/MMC2 interface is routed to the expansion connector.

The EVM has a 10/100 Mbps Ethernet interface using an external MAC/PHY controller LAN 9220 which is interfaced to the AM3715 via the GPMC interface.

The EVM supports three UART (UART 1, 2 and 3) interfaces via two serial ports on the main board.

High Speed USB OTG interface is supported on the EVM Main Board via an onboard external USB transceiver.

High Speed USB HOST (USB2) interface is supported on the EVM Main Board via an onboard external USB transceiver.

One Stereo Line IN and Stereo Headset OUT audio interface is supported through the audio codec on the TPS65950 device. The audio codec on the power module is controlled by internal registers that can be accessed through high-speed I2C interface.

The EVM includes 11 status LEDs, 2 user DIP switches and 16 push button switches.It supports the standard 14-pin JTAG and ETM debug interfaces. The EVM is designed to work with TI’s Code Composer Studio development, or standard GDB tool environments. For more details refer Getting Start Guide.

The EVM is powered by a +5V external power supply. The TPS65950 power anagement device provides the required CPU core voltages and IO voltages.

The EVM can also be powered using an external Lithium Ion/Polymer battery. (Battery not supplied with EVM). RTC is supported through a coin cell.

图2.AM/DM37x评估模块(EVM)外形图

AM/DM37x评估模块(EVM)主要特性:

AM/DM37x EVM includes

Hardware

DM3730 Processor Module

1-GHz ARM Cortex-A8 Processor

800-MHz DSP processor with IVA video accelerators

256MB MDDR/512MB NAND

TPS65950 Power Management Module

WL1271 Daughter Card:

WL1271-based module by LS Research which adds Wireless LAN (IEEE 802.11 b/g/n) and Bluetooth® 2.1+EDR connectivity to the system

On board chip antenna

3.7” LCD Touchscreen

EVM Base Board

Ethernet, SD/MMC, UARTs, USB Host and OTG, Audio and Video Output, JTAG, Keypad, and expansion USB, Serial, and Power cables

Universal power supply with regional adapter

Stylus and USB SD Card Reader

Software

AM37x and DM37x Software Development kits provided via included 4GB SD Card

Linux

Android