Texas Instruments TMS320DM6446 DVEVM User Manual

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TMS320DM6446 DVEVM v2.0

Getting Started Guide

Literature Number: SPRUE66E

December 2008

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EVALUATION BOARD/KIT IMPORTANT NOTICE

Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMON-

STRA TION, OR EV ALUATION PURPOSES ONL Y and is not cons idered by TI to be a finished end-product fit for g eneral consumer use. Perso ns handling the product(s) m ust have electronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be complete in terms of re quired desi gn-, market ing-, and/or man ufacturing related protective c onsiderations, including produ ct safety and environmental measures typically found in end produc t s t hat i nc orpo r ate su ch sem ic on duc tor c omponents or circuit boards. This evaluation board/kit does not fall within the scope of the European Union directives regarding electromagnetic compa tibility , restricted substances (RoHS), recyc ling (WEEE), FCC, CE or UL, and therefore may not meet the technical requirements of these directives or other related directives.

Should this evaluation board/kit not meet the specifications indicated in the User's Guide, the board/kit may be re turned within 30 day s from the d ate of deliv ery fo r a ful l refund. T HE FOR EGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.

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This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRA TION, OR EV ALUATION PURPOSES ONL Y and is not considered by TI to be a finished

end-product fit for general consumer use. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC rules, which are designed to provide reasonable protection against radio frequency interfere nce . Op era tion of this equipment in other environment s may cause interference with radio co mm unications, in which case the use r at his own expense will be required t o take whatever measures may be required to correct this interference.

About This Guide

The DVEVM (Digital Video Evaluation Module) kit is an evaluation platform that showcases the DM644x architecture and lets users evaluate the power and performance of the DM644x as a multimedia engine.

This guide gives you overview information about the board and the software provided with the board. It is intended to be used as an introductory docum ent for the DVEVM. Other do cuments provide more in-depth information. See the DVEVM release notes for a complete list of documents that have been included with the product.

Additional Documents and Resources

You can use the following sources to supplement this user’s guide: ❏ Spectrum Digital website:

http://c6000.spectrumdigital.com/davincievm

❏ TI Linux Community for DaVinci Processors:

http://linux.davincidsp.com

❏ TI DaVinci Software Updates: http://www.ti.com/dvevmupdates ❏ TI DaVinci Technology Developers Wiki: http://wiki.davincidsp.com ❏ Codec Engine Application Developer's Guide (SPRUE67)

Preface

❏ Other PDF documents included with the DVEVM kit ❏ Section 4.11 lists documentation in the DVSDK software installation. ❏ SoC Analyzer Help menu

Notational Conventions

This document uses the following conventions:

❏ Program listings, program examples, and interactive displays are

❏ Square brackets ( [ and ] ) identify an option al paramete r. If you use

Trademarks

The Texas Instruments logo and Texas Instruments are registered trade marks of Texas Instruments. Trademarks of Texas Instruments include: TI, DaVinci, the DaVinci logo, XDS, Code Composer, Code Composer Studio, Probe Point, Code Explorer, DSP/BIOS, RTDX, Online DSP Lab, DaVinci, TMS320, TMS320C54x, TMS320C55x, TMS320C62x, TMS320C64x, TMS320C67x, TMS320C5000, and TMS320C6000.

shown in a mono-spaced font. Examples use bold for emphasis, and interactive displays use bold to distinguish commands that you enter from items that the system displays (such as prompts, command output, error messages, etc.).

an optional parameter, you specify the information within the brackets. Unless t he sq uar e brac k ets a re in a bold typeface, do not enter the brackets themselves.

MS-DOS, Windows, and Windows NT are trademarks of Microsoft Corporation.

UNIX is a registered trad emark of The O pen Grou p in the Un ited States and other countries.

Linux is a registered trademark of Linus Torvalds. Solaris, SunOS, and Java are trademarks or re gistered trademarks of

Sun Microsystems, Inc. All other brand, product na mes, and service names are trademark s or

registered trademarks of their respective companies or organizations.

December 18, 2008

1 DVEVM Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

This chapter introduces the DVEVM (Digital Video Evaluation Module) kit.

1.1 Welcome! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

1.2 What’s in this Kit?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

1.3 What’s on the Board?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

1.4 What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

2 EVM Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

This chapter tells you how to set up the EVM hardware.

2.1 Setting Up the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

2.2 Connecting to a Console Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

3 Running the Demonstration Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

This chapter explains how to run the software demos provided with the DVEVM kit.

3.1 Default Boot Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

3.2 Starting the Standalone Demos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

3.3 Running the Standalone Demos. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

3.3.1 Shutting Down the Demos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

3.3.2 About the Encode + Decode Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

3.3.3 About the Encode Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7

3.3.4 About the Decode Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8

3.3.5 About the Third Party Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9

3.4 Running the Demos from the Command Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9

3.5 Running the Network Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11

4 DVEVM Software Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

This chapter explains how to use the software provided with the DVEVM kit.

4.1 Software Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

4.1.1 Command Prompts in This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

4.1.2 Software Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

4.2 Preparing to Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

4.3 Installing the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

4.3.1 Installing the Target Linux Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

4.3.2 Installing the DVSDK Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

4.3.3 Installing the A/V Demo Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

4.3.4 Installing the SoC Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9

vii

Contents

4.3.5 Exporting a Shared File System for Target Access . . . . . . . . . . . . . . . . . . . 4-9

4.3.6 Testing the Shared File System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

4.3.7 Configuring the Boot Setup for PAL Video Users . . . . . . . . . . . . . . . . . . . . 4-12

4.3.8 Notes on Using Evaluation/Production Codecs . . . . . . . . . . . . . . . . . . . . . 4-12

4.4 Setting Up the Build/Development Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

4.4.1 Writing a Simple Program and Running it on the EVM . . . . . . . . . . . . . . . . 4-13

4.5 Building a New Linux Kernel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

4.6 Rebuilding the DVEVM Software for the Target . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16

4.7 Booting the New Linux Kernel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

4.8 Testing the Build Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

4.9 Using the Digital Video Test Bench (DVTB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

4.10 Running The SoC Analyzer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

4.11 Documentation for DSP-Side Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

A Additional Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

This appendix describes optional procedures you may use depending on your setup and specific needs.

A.1 Changing the Video Input/Output Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

A.2 Putting Demo Applications in the Third-Party Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

A.3 Setting Up a TFTP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

A.4 Alternate Boot Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8

A.5 Rebuilding DSP/BIOS Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11

A.6 Restoring and Updating the EVM Hard Disk Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12

viii

Chapter 1

DVEVM Overview

This chapter introduces the DVEVM (Digital Video Evaluation Module) kit.

Topic Page

1.1 Welcome! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2

1.2 What’s in this Kit?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3

1.3 What’s on the Board? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4

1.4 What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5

1-1

Welcome!

1.1 Welcome!

Your new DVEVM (Digital Video Evaluation Module) kit will allow you to evaluate TI’s new DaVinci

Technology and the DM644x

architecture. This technology brings together system- solu tion

components tailored for efficien t and co mpellin g digital video and audio.

1-2

1.2 What’s in this Kit?

Your DVEVM kit contains the following hardware items. Section 2.1, Setting Up the Hardware tells how to connect these components.

❏ EVM Board. This board con tains a DaVinci TMS320DM6446 dua l-

❏ Hard Disk Drive. The hard d rive provided with the EVM is a 2.5"

❏ CCD Camera. This camera provides NTSC or PAL video imaging for

❏ LCD Display. The LCD display provide d with the DVEVM k it has a

❏ PC Desktop Microphone. The microphone provides a way to

What’s in this Kit?

core device with an ARM9 and C64+ DSP for development of applications that use both a general-purpose processor and an accelerated DSP process or.

Spinpoint drive with 40 GB of storage. The drive speed in 5400 RPM and it has an 8MB cache. The drive is an Ultra ATA 66/100/133 IDE. Software has been preloaded on this EVM board’s hard disk drive.

DaVinci applications.

5.6" screen and 320x240 pixels. Cables and a power supply are provided. The NTSC ver sion ha s a 110 VAC power supp ly. The PAL version has a 220 VAC power supply.

capture audio for use by DaVinci applications.

❏ IR Remote Control. This universal remote control is included to

provide a user interface to the demo applications.

❏ Cables. Cables used to connect the EVM board to peripheral

devices and to a host Li nux workstation used for developm ent are provided in the kit.

The DVEVM kit also comes with the following software. Information about how to use the software components is provided in Chapter 4.

❏ DaVinci Digital Video Evaluation Kit. ❏ TI DaVinci Demonstration Version of MontaVista Linux Pro v5.0

Target

❏ TI DaVinci Demonstration Version of MontaVista Linux Pro v5.0

Tools

❏ A/V Media Clips ❏ Spectrum Digital EVM Tools ❏ SoC Analyzer

DVEVM Overview 1-3

What’s on the Board?

1.3 What’s on the Board?

The EVM comes lo aded with peripherals your mult imedia applications may need to make use of. T he har d drive on the bo ard also comes preloaded with demonstration software. The following block diagram shows the major hardware components.

1-4

Diagram provided courtesy of Spectrum Digital Inc.

Figure 1–1 EVM Hardware Block Diagram

For more informatio n about the EVM hardware, see the DaVinci EVM website at http://c6000.spectrumdigital.com/davincievm.

The DaVinci EVM incorporates a battery holder to provide backup power to the MSP430’s real-time clock when the power is not ap plied to the board. The battery is not included in the kit. See the Spectrum Digital DaVinci EVM Technical Reference for suggested battery part numbers.

1.4 What’s Next?

What’s Next?

To get started evaluating the DV EV M kit a nd d ev elo pin g ap pli c ations for the DM644x, b egin by using this G etting Started guide. It will ste p you through connecting the hardware, testing the software, and beginning to develop applications.

When you are ready for more information about DaVinci Technology and the DM644x architecture, see the following:

❏ Spectrum Digital website:

http://c6000.spectrumdigital.com/davincievm

❏ TI Linux Community for DaVinci Processors:

http://linux.davincidsp.com

❏ TI DaVinci Software Updates: http://www.ti.com/dvevmupdates ❏ TI DaVinci Technology Developers Wiki: http://wiki.davincidsp.com

❏ Codec Engine Application Developer's Guide (SPRUE67) ❏ Other PDF documents included with the DVEVM kit ❏ Section 4.11 lists documentation in the DVSDK software installation. ❏ SoC Analyzer Help menu

DVEVM Overview 1-5

1-6

EVM Hardware Setup

This chapter tells you how to set up the EVM hardware.

Chapter 2

Topic Page

2.1 Setting Up the Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2

2.2 Connecting to a Console Window . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6

2-1

Setting Up the Hardware

2.1 Setting U p the Hardware

To set up the hardware provided with the EVM, use the steps in the sections that foll ow. You may skip s ections if you do n ot need to acce ss a particular peripheral . Fo r ex amp le, if you do no t n eed to use the serial cable, skip that section.

1) The EVM is sensitive to static discharges. Use a grounding strap or other dev ice to prevent damaging the board.

Be sure to connect communication cables before applying power to any equipment.

2) If you use PAL video, set switch 10 on the S3 (USER) bank of switches to On. If you use NTSC video, set this switch to Off. See Figure 1–1 for S3 switch bank location.

3) Connect the yellow vide o cable to the uppe r-right Video Out jac k on the EVM and the LCD display Video Input as shown below.

2-2

See Section A.1, Changing the Video Input/Output Methods for information about using S-Video or Component video.

Setting Up the Hardware

4) Connect the red and white audio cables to the EVM Audio Output and the LCD display R/L Audio Input jacks as shown below:

5) Connect the BNC-to-RCA connector to the coax cable. Then connect the coax cable to the video camera and the EVM Video Input.

6) Connect the power jack for the video camera. T o be ESD safe, do not plug in the other end of the camera power cord until the later step that instructs you to do so.

See Section A.1, Changing the Video Input/Output Methods for information about using S-Video or Component video.

EVM Hardware Setup 2-3

Setting Up the Hardware

7) Connect the microphone to the EVM.

8) Connect the power cable to the EVM power jack on the board. To be ESD safe, do not plug in the other end of the cable yet.

9) If you will use the Ethernet connection, connect the Ethernet cable to the Ethernet Port on the EVM and to an Ethernet network port.

Note that the U-Boot bootargs must incl ude "ip=dhcp " to enable the network connection.

2-4

Setting Up the Hardware

10) If you plan to use the UA RT port for a cons ole window, connect the RS-232 null modem cable to the EVM UART port and a COM port on your host Linux workstation. See Section 2.2, Connecting to a Console Window for more about using a console window.

11) Plug in the LCD display to a power supply.

12) Plug in the NTSC/PAL video camera to a power supply.

13) Connect the power cable to the EVM power jack on the board. T o be ESD safe, plug in the oth er end of the power cable only after you have connected the power cord to the board.

14) Power on the LCD display.

15) Power on the EVM board.

16) The initial scr een of the demo s oftware should b e displayed on the LCD display. Use the IR rem ote to run the software as de scribed i n Chapter 3.

EVM Hardware Setup 2-5

Connecting to a Console Window

2.2 Connecting to a Console Window

You can open a console windo w that allows you to watch and interrupt EVM boot messages by following these steps:

1) Connect a seria l cable betwee n the serial port on the EVM and the serial port (for example, COM1) on a PC.

2) Run a terminal session (such as Minicom on Linux or HyperTerminal on Windows) on the wor kstation and configur e it to connect to tha t serial port with the following characteristics:

■ Bits per Second: 115200

■ Data Bits: 8

■ Parity: None

■ Stop Bits: 1

■ Flow Control: None

3) When you power on the EVM, you will see boot sequence messages. You can press a key to interrupt the boot sequence and type commands in the U-Boot command shell. In this guide, commands to be typed in the U-Boot shell are indicated by an

EVM # prompt.

2-6

Chapter 3

Running the Demonstration Software

This chapter explains how to ru n the software demos provide d with the DVEVM kit.

Topic Page

3.1 Default Boot Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2

3.2 Starting the Standalone Demos. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2

3.3 Running the Standalone Demos . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4

3.4 Running the Demos from the Command Line . . . . . . . . . . . . . . . . . 3–9

3.5 Running the Network Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 –11

3-1

Default Boot Configuration

3.1 Default Boot Configuration

Out of the box, the EVM boots from flash and starts the demos automatically after a few seconds when you power up the board. It does not require an NFS mount or a TFTP server to run the standard demos.

Note: The default U-Boot bootargs definition sets "ip=off", which disables the Ethernet connection.

The out-of-the-box boot parameters are listed in Section A.4.1. The following are alternate ways you may want to boot the board:

❏ TFTP boot with hard drive file system (Section A.4.2) ❏ Flash boot with NFS file system (Section A.4.3) ❏ TFTP boot with NFS file system (Section A.4.4) ❏ PAL video mode vs. NTSC video mode (Section 4.3.7)

To abort the standard boot, p ress any key in the console wi ndow (see Section 2.2). Also see Section A.4, Alternate Boot Methods if you want to change the boot configuration.

3.2 Starting the Standalone Demos

When you connect the EVM hardware, the pre-loaded examples run automatically on the display. These examples encode and decode audio, video, and speech. There are two ways to use the demos:

❏ Standalone. This is the default power-on mode. The demos run

automatically with n o c onn ec tio n to a wo rks tation in the defa ult boo t configuration. This is the mode documented in the rest of this chapter.

The standalone demo was se t up by the DVSDK, which copies the file /examples/dvevmdemo to the directory /etc/rc.d/init.d (the central repository for startup scripts). This file is symbolically linked to /etc/rc.d/rc3id/S88demo. When the board boots up and enters runlevel 3, this file is ex ec ute d to start th e de mo we b s erve r a nd th e demo interface.

❏ Command line. Once you have connected the EVM to a workstation

and installed the neces sar y so ftware ( as de sc ribe d i n S ect ion 4.3.1, Installing the Target Linux Software), you can run the demos from the board’s Linux command line. For further information on running the demos from the command lin e, see the demo doc umentation th at is linked to by the DVSDK release notes.

Note: When you run the demos from th e comma nd line, make s ure the interface process used by the standalone mode demos is not

3-2

Starting the Standalone Demos

running. Otherwise y ou wil l se e err or messages raised whe n d evi c e drivers fail to open.

Once the EVM board has booted, the display should show a pi cture of the remote control. You use the IR remote to control the demos.

The order of the buttons on the actual remote may be different from the picture; if your remote looks different, find the buttons with the same labels on your remote.

To use the demos in standalone mode, follow these steps:

1) Check to make sure the batteries are installed in your IR remote.

2) The initial screen shows a diagram of the IR remote, which you use to run the standalone demos. Take a minute to look at the functions of the various buttons.

3) Since this is a universal remote, you may need to set it to use the codes necessary to run the DVEVM demos. To do this, hold down the "Code Search" button until the red light on the remote stays lit. Then press the "DVD" butto n an d enter "0 020" as the code (for older remotes shipped with the kit, the code is "020").

4) If you accidentally put the remote in TV or some other mode , press " DVD" to return the remote to the correct mode.

5) If the remote does not accept the DVD+0020 code, do a full reset by removing the batteries, pressing the Power button for at lea st a minute, then reinserting the batteries. Then program the remote as in Step 3.

Running the Demonstration Software 3-3

Running the Standalone Demos

3.3 Running the Standalone Demos

1) Press "Play" or "OK" on the remote to move from the remote control diagram to the main menu screen, which looks like this:

The Encode + Decode demo allows you to record and playback video. The Encode demo records audio/speech and video in the formats you select. The Decode demo plays audio/speech and video files you select. The Third-Party Menu can be used to add additional demos (see Section A.2, Putting Demo Applications in the Third- Party Menu).

2) Use the up and down arrows to change which demo is selected. Then, press "OK" or "Play" to move to the selected demo.

3) Within a demo, you start at the settings screen, where you see the controls you can use to run the demo at the bottom of the screen and the current settings in the upper-right.

For example, the Encode demo allows you to set the vide o for mat and the b it rate at which video should be encoded. Fixed settings are also shown here.

4) Use the up and down arrows to move to a setting you want to change.

3-4

Running the Standalone Demos

5) Use the left and right arrows to cycle through the options until the setting you want is shown.

6) Press "Play" to begin the Encode+Decode and Decode demos. Press "Rec" (record) twice to begin the Encode demo.

7) While the demo runs, data about the settings, p rocessor load, and rates are shown. Static settings are on the right. Dynamic data reporting is on the left. For example:

8) This information o verlay s the vi deo; as a resul t the vide o you see is darker than the actual video . To hide the in formation dis play so that you can better see the video, press the "Info/Select" button on the IR remote. Y ou can change the transparency of the OSD (overlay) while running a demo by using the left and right arrows on the remote.

9) Press "Stop" or "Pause" when you want to end or pause a demo. The first time you press "Stop", you return to th e settings screen. P ress "Stop" from the settings screen to go back to the main menu.

For information about runn ing the individual demos, see Section 3.3. 2 through Section 3.3.4.

The demos use the Codec Engine to allow applications to run algorithms. You may noti ce that the DSP CP U load i s initiall y high, ev en if t he DSP

is not running algorithms. The CPU load starts at 100% while the DSP is booting and then decrea ses wh ile th e DSP wa its f or wor k to be reques ted by the GPP. Even if DSP is idle, it may take a short amount of time (several seconds) for the CPU load to settle to zero. This is because the Codec Engine’s CPU load calculation includes a small amount of history.

3.3.1 Shutting Down the Demos

Y ou can quit out of the demos completely while at the main menu screen by pressing "Power" on the remote.

To restart the demos, you can reboot the board or run t he demos from the command line as described in Secti on 3.4.

Running the Demonstration Software 3-5

Running the Standalone Demos

3.3.2 About the Encode + Decode Demo

The Encode + Decode demo allows you to rec ord and playback video . Video comes from the camera, is encoded, then decoded, and then sent to the LDC display.

The Encode + Decode d oes only video proc essing; it does not enc ode and decode audio or s peech. The supported video algorithm i s H.264 Baseline Profile (.264 file extens ion ).

Table 3–1 IR Remote Buttons for Encode + Decode Demo

IR Remote Button Mode Action Performed

Up/Down -- -- no action -Play or OK Setup Begin demo Record -- -- no action -Info/Select Setup Show / hide block diagram for demo Info/Select Run Toggle information display Left/Right Run Change information transparency level Pause Run Pause demo (press Play to resume) Stop Setup / Run Return to previous screen

The application runs on the ARM using Linux. The video signal is passed to video encoders and decoders on the DSP by the Codec Engine. Shared memory is used when passing data.

To use this demo from the c ommand l ine, see Sec tion 3.4, Run ning the Demos from the Command Line.

3-6

3.3.3 About the Encode Demo

Like the Encode + Decode demo, the Encode demo also encodes video. In addition, it also encodes speech. The speech source is the microphone.

The encoded data is wr itten to files on the EVM’s hard disk drive. Th e possible filenames are demo.264, demo.mpeg4, demompeg4.g711, and demo264.g711. Older versions of these files are overwritten as needed.

Output is not deco ded an d sen t to th e d isplay or spe akers other than t o show the settings and dynamic data collected about the load and rates.

Running the Standalone Demos

Note that you can use only a speech encoder, not an audio encoder. The supported video algorithms are MPEG4 (.mpeg4 file extension) and H.264 (.264 file extension). The supported speech algorithm is G.711 (.g711 extension).

Table 3–2 IR Remote Buttons for Encode Demo

IR Remote Button Mode Action Performed

Up/Down Setup Change option selection Left/Right Setup Change setting of selected option Play Setup Switch to decode demo setup Record (twice)

or OK

Setup / Run Begin encode demo, send unencoded

data to display

Running the Demonstration Software 3-7

Running the Standalone Demos

Table 3–2 IR Remote Buttons for Encode Demo

IR Remote Button Mode Action Performed

Info/Select Setup Show / hide block diagram for demo Info/Select Run Toggle information display Left/Right Run Change information transparency level

Pause Run Pause demo (press Record to resume) Stop Setup / Run Return to previous screen

The application runs on the ARM using Linux. The video and audio signals are passed to encoders on the DSP by the Codec Engine. Shared memory is used when passing data.

To use this demo from the c ommand l ine, see Sec tion 3.4, Run ning the Demos from the Command Line.

3.3.4 About the Decode Demo

(There is no display for encode demo behind the information.)

The Decode demo pla ys audio/speech and video files y ou select. You can select a source video file and a source audio or speech file. Use the left and right arrow button s to choose from the dem o files and the files created by the Enc ode demo, whi ch are stored o n the EVM’s hard disk drive. The decoded signals are sent to the display and speakers.

3-8

Running the Demos from the Command Line

The supported video algorithms are MPEG4 (.mpeg4 file extension), H.264 (.264 file extension) and MPEG2 (.m2v file extension).

The supported audio algorithm is AAC (.aac file extension). The supported speech algorithm is G.711 (.g711 file extension).

Table 3–3 IR Remote Buttons for Decode Demo

IR Remote Button Mode Action Performed

Up/Down -- -- no action -Left/Right Setup Select a different file combination Play or OK Setup Begin decode demo Record -- -- no action -Info/Select Setup Show / hide block diagram for demo Info/Select Run Toggle information display Left/Right Run Change information transparency level Pause Run Pause demo (press Play to resume) Stop Setup / Run Return to previous screen

The application runs on the ARM using Linux. The video and audio signals are passed to decoders on the DSP by the Codec Engine. Shared memory is used when passing data.

To use this demo from the c ommand l ine, see Sec tion 3.4, Run ning the Demos from the Command Line.

3.3.5 About the Third Party Menu

The Third-Party Menu can be used to add additional demos. See Section A.2, Putting Demo Applications in the Third-Party Menu.

3.4 Running the Demos from the Command Line

You can run the demo applications from the Linux shell in a terminal window connected to the EVM boar d’s serial port. The se are the sam e demos described in Section 3.2, Starting the Standalone Demos.

1) See Section 2.2, Connecting to a Console Window for instructions regarding communicating with Linux running on the EVM.

2) Login to the target as root. No password is required.

Running the Demonstration Software 3-9

Running the Demos from the Command Line

3) Move to the appr opriate directory on the target using the following command. (See Section 4.1.1 for the meanings of command prompts shown in this document.)

Target $ cd /opt/dvsdk/dm6446

4) Before running demo applications from the command line, the CMEM and accelerator kernel modules must be loaded.

■ Use "lsmod" to see if the y are loaded. You should see output

similar to the following:

Target $ lsmod Module Size Used by dsplinkk 98220 0 cmemk 20072 0

■ If they are not loaded, use the following commands to load these

modules.

Target $ ./loadmodules.sh

5) If a standalone demo is running, kill that process. You can do this by pressing the Power button on the remote from the main menu . Or, use the following commands:

Target $ killall -9 interface

6) To see the command-line options for the demos, use one of the following commands with the -h or --help option:

3-10

Target $ ./encodedecode -h

Target $ ./encode -h

Target $ ./decode -h

7) To stop a demo, press Ctrl+C at the command line or press the Stop button on the remote.

You can also find the list of command-line options in encode.txt, decode.txt, and encoded ecode.txt in the res pective demo direc tories of the DVSDK package on the host.

Note: When you run loadmodules.sh, you may see warnings about the kernel being tainte d by cmemk and dsplinkk. You can ignore these warnings. They occur because DSP/B IO S Link does not use the kernel build system and is not under the same license as the kernel itself.

3.5 Running the Network Demo

As an example of standard TCP/IP networking support, the DVEVM examples include a smal l HTTP web server. This web server is started on the GPP-side as part of the Linux startup sequence. It conf igured to service requests from web browsers on the standard TCP/IP port 80.

After the EVM board has boot ed, connect a PC to the same network to which the EVM board is connecte d. Enter a URL of the form "http://ipaddress-of-evm" in a web browser (for example, Internet Explorer, Firefox, or Opera). The IP address of the board is shown in the lower-right corner of the main menu of the A/V demos.

You should se e a web page with information abou t DaVinci technology and the DVEVM software.

Running the Network Demo

Use this web page to interact with the board and run the A/V demos described in Section 3.3, Running the Standalone Demos. Two simple CGI scripts on the EVM enable you to start the demos (assuming they are not already running) and see what pro cesses are r unning on th e board. If you want to see the demo started from the web page, be sure to exit the demo first (use the Power button from the main menu).

The web server software is an open-source package called THTTPD (http://www.acme.com/software/thttpd/). It is designed to be small, fas t, and portable. The source code is included with the DVEVM software. Y ou can get the latest version directly from the web. The web server and CGI scripts are installed on the target in the /opt/dvsdk/dm6446/web directory.

Running the Demonstration Software 3-11

3-12

Chapter 4

DVEVM Software Setup

This chapter explains how to use the software provided with the DVEVM kit.

Topic Page

4.1 Software Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2

4.2 Preparing to Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5

4.3 Installing the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5

4.4 Setting Up the Build/Development Environment . . . . . . . . . . . . . . 4–13

4.5 Building a New Linux Kernel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–14

4.6 Rebuilding the DVEVM Software for the Target . . . . . . . . . . . . . . . 4–16

4.7 Booting the New Linux Kernel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 –17

4.8 Testing the Build Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–18

4.9 Using the Digital Video Test Bench (DVTB) . . . . . . . . . . . . . . . . . . 4–18

4.10 Running The SoC Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–20

4.11 Documentation for DSP-Side Development . . . . . . . . . . . . . . . . . . 4–21

4-1

Software Overview

4.1 Software Overview

To begin developing applications, you need to install the DVEVM development environment. This chapter outlines the steps required to load the DVEVM softwa re onto the de velop men t host. You will need the distribution disks or the files they contain to get started.

The DaVinci software approach provides interoperable, optimized, production-ready video and audio codecs that leverage DSP and integrated accelerators. These codecs are built into configurable frameworks, and are presented via published APIs within popular operating systems (such as Linux) for rapid software implementation.

The following software is provided with the DVEVM.

❏ Standalone demonstration software. This is provided on the har d

❏ Disk 1: MontaVista Linux Pro v5.0 System Tools and Target File

drive on the EVM. The hard-wired examples encode and decode audio, video, and speech. Another demo shows the board’s network capabilities. See Section 3.2 and Section 3.5.

System. The version provided with the DVEVM kit is the demonstration version. It contains the following file:

■ mvl_5_0_demo_sys_setuplinux.bin. This installation file

contains the MontaVista Tool development tool chain and the target file system.

4-2

❏ Disk 2: TI DVSDK Software. This DVD includes demo applications,

Codec Engine software, example codec servers, and DVEVM documentation. It contains the following files:

■ this manual in PDF format

■ dvsdk_setuplin ux _#_ #_# _#.b in (DV S DK ins taller)

■ mvl_5_0_0_demo_lsp_setuplinux_#_#_#_#.bin

■ xdctools_setuplinux_#_#_#.bin (XDCtools installer)

■ bios_setuplinux_#_#_#.bin (DSP/BIOS installer)

■ TI-C6x-CGT-v#.#.#.#.bin (TI Code Generation Tools installer)

■ SoCAnalyzer_#.#.#.#.exe. SoC Analyzer installer.

■ data.tar.gz (Contains A/V data files for use by the demos)

■ restore/overlay.tar.gz (Contains demo files in case they are

needed for recovery. You can generally ignore this file.)

❏ Disk 3: SDI Board Support Software. This disk contains ARM-

based test code, CCStudio GEL files, and other EVM support software.

Texas Instruments, in agreement with MontaVista Software Inc., is providing a demonstr ati on vers io n of th e Li nux Professional Edition v5. 0 embedded operating s ystem and developm ent tools. T he base DVE VM kit includes this demon st ratio n versio n. The dem o versi on is a sub set of what MontaVista provides with the full Professional Edition. Tools such as DevRocket

and the Professional Edition documentation are not included, but it is otherwise fully functional and useful for customers evaluating the DaVinci platform. Also, please note that this release does not include a MontaVista user lice nse, and no direct custo mer support, warranty, or indemnification from MontaVista Software Inc. is provided.

You may choose to order the DaVinci Software Production Bundle (DVSPB), which i ncludes the production release of this demonstration version of MontaVista Linux. Thi s inclu des a f ull Mo ntaVista license an d the DevRocket IDE.

4.1.1 Command Prompts in This Guide

In this guide, commands are preceded by prompts that indicate the environment where the command is to be typed. For example:

❏

host $

Indicates command to be typed into the shell window of the host Linux workstation.

Software Overview

❏

EVM #

Indicates commands to be ty ped into the U-Boot shell in a c onsole window connected to the EVM board's serial port. (Section 2.2)

❏

target $

Indicates commands t o be typed into th e Linux shell i n the terminal window connected to the EVM board's serial port.

DVEVM Software Setup 4-3

Software Overview

4.1.2 Software Components

The following figure shows the software components used for application development with the DVEVM kit:

A pp lic ation

I/O

Operating System

Adaptation Layer

(OSAL)

User Space

DMAI

VISA API

Codec Engine

VID IMG

SPH AUD

Linux APIsLinux APIs

Kernel Space

CMEM Dri ver

File

(ATA)

USB 2.0

Dri ver

MMC/SD

Dri ver

EMAC Dri ver

SPI

Dri ver

Video

Dri ver

Link

Dri ver

Engine

Server

xDM

Speech Co dec

API

Audio Dri ver

UART Dri ver

V-Node

Video-Task

xDM

API

VISA APIVISA API

S-Node

Speech-Task

xDM

API

Video

Video Codec

Codec

Speech

Codec

Framework

Components

DMAN3 ACPY3

DSKT2

RMAN

DSKT2

RMAN

DSKT2

RMANDSKT2

RMAN

I-Node

Image-Task

xDM

Im a ging

API

Codec

A-Node

Audio-Task

xDM

Audio

API

Codec

Codec Engine

Engine

Engine Remote

Remote

Remote Server

Server

Wa tc hd g

I/O I/O I/O

Timer

4-4

Timer

I2C

Dri ver

ARM Subsystem DSP Subsystem + Co-Processor

DSP/BIOS™ Link

Transport

DSP/BIOS™

In the previous figu re, your applicatio n runs on the ARM s ubsystem. It handles I/O and application processing. To process video, image, speech, and audi o si gna ls it u ses the V ISA A PI s pr ovided by the Codec Engine. The Codec Engine, in turn, uses services such as DSP/BIOS Link and protocols s uch a s xDAIS and x DM to c ommun icate with a pr econfigured Codec Eng ine Remote Server on the DSP s ubsystem. The DSP handles signal processing and the results are available to the ARM subsystem in shared memory. For more information, see the Codec Engine Application Developer's Guide (SPRUE67).

In addition, Linux running on the ARM makes a large number of APIs available to your application, including drivers and timers.

4.2 Preparing to Install

On a host system, mount the DVEVM demons tration DVD an d copy the following files to a temporary location with at least 2.3 GB available space. Since you can delete the installation files after installing the software, a directory like /tmp is recommended.

❏ mvl_5_0_demo_sys_setuplinux.bin (disk 1) ❏ mvl_5_0_0_demo_lsp_setuplinux_#_#_#_#.bin (disk 2) ❏ dvsdk_setuplin ux _#_ #_# _#.b in (d is k 2) ❏ xdctools_setuplinux_#_#_#.bin (disk 2) ❏ bios_setuplinux_#_#_#_#.bin (disk 2) ❏ TI-C6x-CGT-v#.#.#.#.bin (disk 2)

Updates to these installers may be av ail ab le o n the TI DaVinc i Software Updates website listed in Section 1.4.

Ensure that an X gra phi ca l d ispla y i s a va il able, and point your DISPLAY environment variable to this value. For example:

csh:

Preparing to Install

host $ setenv DISPLAY cnabc0314159d1:0

ksh or bash:

host $ export DISPLAY=cnabc0314159d1:0

4.3 Installing th e Sof t ware

Installing the software used by the DVEVM involves performing the following steps:

❏ Section 4.3.1, Installing the Target Linux Software ❏ Section 4.3.2, Installing the DVSDK Software ❏ Section 4.3.3, Installing the A/V Demo Files ❏ Section 4.3.4, Installing the SoC Analyzer ❏ Section 4.3.5, Exporting a Shared File System for Target Access ❏ Section 4.3.6, T esting the Shared File System

❏ Section 4.3.7, Configuring the Boot Setup for PAL Video Users

DVEVM Software Setup 4-5

Installing the Software

4.3.1 Installing the Target Linux Software

This section explains how to install Linux for use on the target board. This is a demonstration version of MontaVista Linux Pro v5.0.

Note that separate versions of Linux are used by the target and your host Linux workstation. The follo wing Linux host operating system i s tested with the DVEVM: Red Hat Enterprise Linux v4 (Server Edition).

To install the Linux software, follow these steps:

1) Log in as root on you r host Li nux work station. Th is wil l allow y ou to successfully run the graphical installer to install MontaVista Linux.

2) Execute each of the following bin files (where

#_#_#_# is the current

version number) from the temporary location that they were copied in order to extract the installers for the Linux tools, Linux kernel, and the file system. If a bin file does not run, make sure these files are executable (use

chmod +x *.bin).

Instead of the default installation directory, we suggest that you change the installation directory to /opt/mv_pro_5.0.

host $ ./mvl_5_0_demo_sys_setuplinux.bin host $ ./mvl_5_0_0_demo_lsp_setuplinux_#_#_#_#.bin

3) After you execute thes e .bin files, make sure the foll owing files are located in /opt/mv_pro_5.0 (or in the /mv_pro_5.0 subdirectory of the directory you chose in place of the default):

■ mvltools5_0_#######.tar.gz

■ DaVinciLSP_#_#_#_#.tar.gz

4) Go to the location where you will unpack the tar files. For example:

host $ cd /opt/mv_pro_5.0

5) Unpack the tar files (as root) by using the following commands:

host $ tar zxf mvltools5_0_#######.tar.gz host $ tar zxf DaVinciLSP_#_#_#_#.tar.gz

This creates the MontaVista directory structure under the /opt/mv_pro_5.0/montavis ta/ director y.

Note that unpacking these tar files will overwrite any existing files that were previously installed.

4-6

Note: The LSP shipped with the D VSD K is a mu lti -p latfor m LS P; it is not configured for a particular platform. As shipped, this LSP cannot be used to buil d the d emo or e xampl e appl icat ions. It m ust first be copied to a user area and configured/built for the EVM. Please see Section 4.5 for instructions.

4.3.2 Installing the DVSDK Software

The DVSDK software in cludes Codec Engine components, DSP /BIOS Link, sample data file s, xDAIS and xD M header files, and a contiguous memory allocator for Linux (CMEM).

Note: The installers for DSP/BIOS and Code Generation Tools (codegen) have a different default installation location. However, we strongly recommend that you change the default installation locations to place the components together (if you have not already installed the Linux vers ions of thes e componen ts elsewhere) . This simplifies the build setup steps.

To install the DVSDK software using the Linux installer, follow these steps:

1) Log in using a user account. The user account must ha ve execute permission for the dvsdk_setuplinux_#_#_#_#.bin and xdctools_setuplinux_#_#_#.bin files.

2) Execute the DVSDK installer that you previously copied from the DVSDK DVD. For example:

Installing the Software

host $ cd /tmp host $ ./dvsdk_setuplinux_#_#_#_#.bin

This installs the DVSDK in /home/<useracct>/dvsdk_#_#.

3) Execute the XDC installer that you previously copied from the DVSDK DVD. For example:

host $ ./xdctools_setuplinux_#_#_#_#.bin

When you are prompted, do not use the default installation lo ca tion . Instead, install the software in the di rectory created in Step 2. For example, /home/<useracct>/dvsdk_#_#.

4) Execute the DS P/BIOS ins taller that you p revious ly cop ied fr om th e DVSDK DVD. For example:

host $ ./bios_setuplinux_5_#_#_#.bin

When you are prompted, do not use the default installation lo ca tion . Instead, install the software in the di rectory created in Step 2. For example, /home/<useracct>/dvsdk_#_#.

5) Execute the Code Generation Tools installer that you previously copied from the DVSDK DVD. For example:

host $ ./TI-C6x-CGT-v#.#.#.#.bin

DVEVM Software Setup 4-7

Installing the Software

When the installer prompts for an installation location, do not use the default location. Instead, use the entire path to the dvsdk_#_# codegen directory. You will need to manually create the folder cg6x_6_#_#, where # represents part of the version number. For example:

/home/<useracct>/dvsdk_#_#/cg6x_6_0_16.

Remember to set the environment variable as directed by the installer. For example:

C6X_C_DIR="/home/<useracct>/dvsdk_#_#/cg6x_6_#_#/include: /home/<useracct>/dvsdk_#_#/cg6x_6_#_#/lib"

6) You can now d elete th e .bin files that y ou loaded i nto the tem pora ry directory.

Note: You can uninstall these components by using the rm -rf command on its directory. You should ignore the uninstall files created by the installer.

4.3.3 Installing the A/V Demo Files

Disk 2 contains the A/V files used by the demos. After following the instructions in the previous section, follow these instructions to install the A/V files:

1) Go to the DVSDK directory that you set up previously. For example:

host $ cd /home/<useracct>/dvsdk_#_#

2) Mount disk 2 and copy the data. tar.gz file to your DVEVM directo ry. For example:

host $ cp <mount location>/data.tar.gz .

3) Extract the A/V data files. For example:

host $ tar xfz data.tar.gz

4-8

4.3.4 Installing the SoC Analyzer

SoC Analyzer is a graphical tool that runs on a Windows developmen t host and uses data collected from Lin ux, DSP/ BIOS, and Code c En gine to provide system-level execution and performance analysis for debugging and profiling DVEVM software execution. Follow these instructions to install SoC Analyzer:

1) Insert the TI DVSD K software disk into the Windows de velopment host PC.

2) Browse to the SoCAnalyzer/WinXP folder.

3) Double-click on the SoCAnalyzer_#.#.#.#.exe file to start the installer.

4) Follow the installer’s prompts to install the software.

4.3.5 Exporting a Shared File System for Target Access

Although the board’s hard drive contains a file system, during development it is more conv enient to have the target board N FS moun t a file system on a host Linux workstation. Once you have tested the application, you ca n store it on the board’s hard driv e for a standalone demonstration.

Installing the Software

Note: Using video files from an NFS file system may result in a low frame rate when encoding/decoding videos.

Before the board can mount a target file system, you must export that target file system on the host Linux workstation. The file system uses an NFS (Network File Sy stem) s erv er. The exported file s yst e m wi ll co ntain the target file system and your executables.

To export the file system fr om your NFS server, perform th e following steps. You only need to perform these steps once.

1) Log in with a user account on the host Linux workstation.

2) Perform the following commands to prepare a location for the MontaVista file system. For example:

host $ cd /home/<useracct> host $ mkdir -p workdir/filesys host $ cd workdir/filesys

3) Switch us er to "root" on the host Linux workstation.

host $ su root

DVEVM Software Setup 4-9

Installing the Software

4) Perform the follo wing commands to crea te a copy of the target file system with permissions set for writing to the shared area as <useracct>. Substitute your user name for <useracct>. If you installed in a location other than /opt/ mv_pro_5.0, use you r location in the cp command.

host $ cp -a /opt/mv_pro_5.0/montavista/pro/devkit/arm/v5t_le/target/* . host $ chown -R <useracct> opt

5) Edit the /etc/exports file on the host Linux workstation (not the exports file on the target filesystem). Add the following line for exporting the filesys area, substituting your user name for <useracct>. Use the full path from root; ~ may not work for exports on all file systems.

/home/<useracct>/workdir/filesys *(rw,no_root_squash,no_all_squash,sync)

Note: Make sure you d o no t ad d a space between the * and the ( i n the above command.

6) Still as root, use the f ollowing commands to make the NFS server aware of the change to its configuration and to invoke an NFS restart.

host $ /usr/sbin/exportfs -av host $ /sbin/service nfs restart

Note: Use exportfs -rav to re-export all directories. Use

/etc/init.d/nfs status to verify that the NFS status is running.

7) Verify that the server firewall is turned off:

host $ /etc/init.d/iptables status

If the firewall is running, disable it:

host $ /etc/init.d/iptables stop

4-10

4.3.6 Testing the Shared File System

To test your NFS setup, follow these steps:

1) Get the IP add ress of y our hos t Lin ux wor kstatio ns as fo llows . Look for the IP address associated with the eth0 Ethernet port.

host $ /sbin/ifconfig

2) Open a terminal e mul ati on win dow to c onne ct to the E VM bo ar d vi a RS-232 using the instructions in Section 2.2. If you have a Windows workstation, you can use HyperTerminal. If you have a Linux workstation, you might use Minicom. (You may need to turn on line wrap.)

3) Power on the EVM board, and abort the automatic boot sequence by pressing a key in the console window (Section 2.2).

4) Set the following environment variables in the console window:

EVM # setenv nfshost <ip address of nfs host> EVM # setenv rootpath <directory to mount> EVM # setenv bootargs video=davincifb:vid0=720x576x16,

2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K davinci_enc_mngr.ch0_output=COMPOSITE davinci_enc_mngr.ch0_mode=$(videostd) console=ttyS0,115200n8 noinitrd rw ip=dhcp root=/dev/nfs nfsroot=$(nfshost):$(rootpath),nolock

mem=120M

Note that the setenv bootargs command should be typed on a single line. Also note that you should avoid using the numeric keypad to enter numbers, as it can sometimes insert extra invisible characters.

Installing the Software

<directory to mount> must match what you specified in Step

The 5 of Section 4.3.5. For example, /home/<useracct>/workdir/filesys.

Hints: You may want to use the prin tenv command to prin t a list of your environment variables. You can also save these setenv commands in a .txt file from which you can paste them in the future.

5) Save the environment so that you don't have to retype these commands every time you cycle power on the EVM board:

EVM # saveenv

6) Boot the board using NFS:

EVM # boot

7) You can now log in as "root" with no password required.

DVEVM Software Setup 4-11

Installing the Software

See Section A.4, A lternate Boot Methods fo r information about bootin g with TFTP or NFS and using flash or the EVM’s hard drive.

4.3.7 Configuring the Boot Setup for PAL Video Users

You can configure the EVM to select either the NTSC or PAL video standard during the d efau lt boo t sequ enc e. To select PAL, set swi tc h 1 0 on the S3 (USER) user bank of switches to On. For NTSC, set this switch to Off. The switch causes the U-Boo t envir onmen t variabl e "vid eostd" to be set to "pal" or "ntsc".

Using the "videostd" variable in the "bootargs" environment variable passed to the Linux kernel caus es the corre sponding v ideo standard to be used by the display (VPBE) driver. For example:

EVM # setenv bootargs video=davincifb:vid0=720x576x16, 2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K davinci_enc_mngr.ch0_output=COMPOSITE console=ttyS0,115200n8 noinitrd rw ip=dhcp root=/dev/hda1 mem=120M

EVM # setenv bootcmd 'setenv setboot setenv bootargs \$(bootargs) davinci_enc_mngr.ch0_mode=\$(videostd); run setboot; bootm 0x2050000'

When the "boot" command is run in U-Boot, the value of "videostd" is substituted based on the setting of the switch.

See Section A.1, Changing the Video Input/Output Methods for information about switching to S-Video and Component video.

4.3.8 Notes on Using Evaluation/Production Codecs

As part of the DVSDK installation, you received a number of codecs:

❏ H.264 Base Profile Decoder ❏ H.264 Base Profile Encoder ❏ MPEG4 Restricted Simple Profi le Decode r ❏ MPEG4 Simple Profile Encoder ❏ MPEG2 Decoder ❏ AAC Decoder ❏ MP3 Decoder ❏ G.711 Decoder (not a TI codec) ❏ G.711 Encoder (not a TI codec)

4-12

Setting Up the Build/Development Environment

These codecs are provided under a "for demonstration-only" license agreement. If you wish to use these codecs in a production development environment, you can go to the DVEVM Updates web site at http://www.ti.com/dvevmupdates to download the latest production versions, along with the appropriate license agreement.

4.4 Setting Up the Build/Development Environment

To set up the GPP-side development and build environment, follow these steps:

1) Log in to your user account (and not as root) on the NFS host system.

2) Set your PA TH so that the MontaVista tool chain host tools and cross compiler (arm_v5t_l e-gcc) can be found. For exampl e, in a default installation of the MontaVista LSP, you should add a definition like the following to your shell resource file (for example, ~/.bashrc):

PATH="/opt/mv_pro_5.0/montavista/pro/devkit/arm/v5t_le/bin: /opt/mv_pro_5.0/montavista/pro/bin: /opt/mv_pro_5.0/montavista/common/bin:$PATH"

If you installed in a location other than /opt/mv_p ro_5.0 , use your own location in the PATH.

3) Remember to use the following command after modifying your .bashrc file:

host $ source ~/.bashrc

4.4.1 Writing a Simple Program and Running it on the EVM

Make sure you have per formed the steps in Section 4.3.5, Exporting a Shared File System for Target Access and Section 4.4, Se tting Up the Build/Development Environment.

Perform the following steps on the NFS host system as user (not as root):

1) host $ mkdir /home/<useracct>/workdir/filesys/opt/hello

2) host $ cd /home/<useracct>/workdir/filesys/opt/hello

3) Create a file called hello.c with the following contents:

#include <stdio.h>

int main() { printf("Buongiorno DaVinci!\n"); return 0; }

DVEVM Software Setup 4-13

Building a New Linux Kernel

4) host $ arm_v5t_le-gcc hello.c -o hello

Perform the followi ng st eps on the target bo ard. You may use either the target's console window (Section 2.2) or a telnet session.

1) target $ cd /opt/hello

2) Run ./hello. The output should be:

Buongiorno DaVinci!

4.5 Building a New Linux Kernel

If you modify the target’s Linux kernel sources, you will need to rebuild it and then boot it up by either replacing the kernel that comes installed on the EVM board’s flash or by having the U-Boot utility use TF TP to boot the kernel over a network connection.

Make sure you have completed Section 4.4, Setting Up the

Build/Development Environment and Section 4.4.1, Writing a Simple Program and Running it on the EVM before attempting to build a new

kernel. To rebuild the Linux Kernel, follow these steps:

1) Log in to your user account (not as root).

2) Set the

PLATFORM variable in the Rules.make file as described in

Section 4.6.

3) Use commands like the following to make a local working copy of the MontaVista Linux Support Package (LSP) in your home directory. This copy contains the embedded Linux 2.6.18 kernel plus the DaVinci drivers. If you installed in a location other than /opt/mv_pro_5.0, use your location in the cp command.

host $ cd /home/<useracct> host $ mkdir -p workdir/lsp host $ cd workdir/lsp host $ cp -R /opt/mv_pro_5.0/montavista/pro/devkit/lsp/ti-davinci .

4) Use the following commands to configure the kernel using the DaVinci defaults. Note that CROSS_COMP ILE sp ecifies a prefix for the executables that is used during compilation:

host $ cd ti-davinci/linux-2.6.18_pro500 host $ make ARCH=arm CROSS_COMPILE=arm_v5t_le- davinci_dm644x_defconfig

4-14

Building a New Linux Ke rnel

5) To modify the kernel opti ons, you will need to use a configuration command such as "mak e m enu co nfi g" or "make xconfig". To enable the MontaVista default kernel options, use the following command:

host $ make ARCH=arm CROSS_COMPILE=arm_v5t_le- checksetconfig

6) If you want to enable Linux Trace for the SoC Analyzer, follow these substeps. Otherwise, skip to Step 7.

a) Use this command to go to the configuration menu for the ARM:

host $ make ARCH=arm CROSS_COMPILE=arm_v5t_le- menuconfig

b) Navigate to Devi ce Drivers-> Filesyste ms->Pseud o Filesystem s. c) Set Relayfs file system support to "built-in". d) Return to the main menu and navigate to General Setup. e) Enable Linux Trace Toolkit Support as "built-in". f) Select Exit to save your changes and exit the configuration

screen.

7) Compile the kernel using the following command:

host $ make ARCH=arm CROSS_COMPILE=arm_v5t_le- uImage

8) If the kernel is configured with any loadable modules (that is, selecting <M> for a module in menuconfig), use the following commands to rebuild and install these modules:

host $ make ARCH=arm CROSS_COMPILE=arm_v5t_le- modules host $ make ARCH=arm CROSS_COMPILE=arm_v5t_le-

INSTALL_MOD_PATH=/home/<useracct>/workdir/filesys modules_install

9) Use the following command to copy the uImage to a place where UBoot can use TFTP to download it to the EVM. These commands assume you are using the default TFTP boot area, which is /tftpboot. If you use another TFTP root location, please change /tftpboot to your own TFTP roo t locati on. (Perform these com mands as root or use a

chown uImage command to get ownership of the file.)

host $ cp /home/<useracct>/workdir/lsp/ti-davinci/linux-2.6.18_pro500/arch/ arm/boot/uImage

/tftpboot host $ chmod a+r /tftpboot/uImage

For more information on setting up a TFTP server, see Section A.3. See a standard Linux kerne l reference book or online s ource for more

about Linux build configuration options.

DVEVM Software Setup 4-15

Rebuilding the DVEVM Software for the Target

4.6 Rebuilding the DVEVM Software for the Target

To place demo files in the /opt/dvsdk/dm6446 directory, you need to rebuild the DVSDK software. To do this, follow these steps:

1) If you have not already done so, rebuild the Linux kernel as described in Section 4.5.

2) Change directory to dvsdk_#_#.

3) Edit the Rules.make file in the dvsdk_#_#. directory.

■ Set PLATFORM to match your EVM board as follows:

PLATFORM=dm6446

■ Set DVSDK_INSTALL_DIR to the top-level DVSDK installatio n

directory as follows:

DVSDK_INSTALL_DIR=/home/<useracct>/dvsdk_#_#

■ Make sure EXEC_DIR points to the opt directory on the NFS

exported file system as follows:

EXEC_DIR=/home/<useracct>/workdir/filesys/opt/dvsdk/$(PLATFORM)

■ Make sure MVTOOL_DIR points to the MontaVista Linux tools

directory as follows:

MVTOOL_DIR=/opt/mv_pro_5.0/montavista/pro/devkit/arm/

v5t_le

■ Make sure LINUXKERNEL_INSTALL_DIR is defined as follows:

LINUXKERNEL_INSTALL_DIR=/home/<useracct>/workdir/lsp/ti-davinci/linux-2.6.1

■ Modify the following envir onment variables as needed to match

the locations of these components on your Linux host. We recommend that these components be installed in the /home/<useracct>/dvsdk_#_# directory, but you may have installed them elsewhere.

BIOS_INSTALL_DIR=/home FC_INSTALL_DIR=/home XDC_INSTALL_DIR=/home

/<useracct>/dvsdk_#_#/bios_#_#

/<useracct>/dvsdk_#_#/fc_#_#

/<useracct>/dvsdk_#_#/xdctools_#_#

4) While in the same directory that contains Rules.make, use the following command s to b uil d t he DV S DK d emo ap pli c ati ons and put the resulting binaries on the target file system specified by EXEC_DIR.

host $ make clean host $ make host $ make install

8_pro500

4-16

5) You can tes t the rebuilt DVEVM software by booting your NFS file system and running the demos from the command line as described in Section 3.4.

4.7 Booting the New Linux Kernel

After building the new kernel, in order to use it to boot the DaVinci board, you must transfer it to the board via TFTP. It is assumed you have completed the steps in Section 4.5, Building a New Linux Kernel and the boot file, uImage has been copied to /tftpboot (or some other site-specific TFTP accessible location).

1) Power on the EVM board, and abort the automatic boot sequence by pressing a key in the console window (Section 2.2).

2) Set the following environment variables. (This assumes you are starting from a defaul t, clean U-Boot env ironment. S ee Sect ion 3.1 , Default Boot Configuration for information on the U-Boot default environment.)

EVM # setenv bootcmd 'dhcp;bootm' EVM # setenv serverip <tftp server ip address> EVM # setenv bootfile uImage EVM # setenv bootargs video=davincifb:vid0=720x576x16,

2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K davinci_enc_mngr.ch0_output=COMPOSITE davinci_enc_mngr.ch0_mode=$(videostd) console=ttyS0,115200n8 noinitrd rw ip=dhcp root=/dev/hda1 mem=120M

Note that the setenv bootargs command should be typed on a single line.

Booting the New Linux Kernel

3) Boot the board:

EVM # boot

This configuration boots a new Linux kernel via TFTP with a hard drive based file system. To boot via TFTP using an NFS file system, see Section A.4.4.

For instructions on how to verif y that your host workstation is runni ng a TFTP server, and for instructions on what to do if it isn’t, see Section A.3.

For more details on booting, see Section A.4.

DVEVM Software Setup 4-17

Testing the Build Environment

4.8 Testing the Build Environment

To test your DVSDK software installation, you can build one of the Codec Engine servers. This server is a DSP-side application. Building it tests the installation of DSP-side development components.

To build the video_copy server, follow these steps:

1) Go to /home/<useracct>/dvsdk_#_#/codec_engine_#_#/examples and open the build_instructions.html file.

2) Follow the step-by-step instructions for building examples. When you are editing the xdcpaths.mak file, note that the DVS DK installation does not include the ce tools directory, so you will need to set the USE_CETOOLS_IF_EXISTS variable to 0, and modify additional variables to point to the locations of xDAIS, DSP/BIOS Link, CMEM, and Framework Components.

3) Go to the video_copy server directory. (/home/<useracct>/dvsdk_#_#/codec_engine_#_#/examples/ servers/video_copy) to inspect the built server.

4.9 Using the Digital Video Test Bench (DVTB)

The Digital Video T est Bench (DVTB) is a Linux utility that was developed to execute end-to-end data flows using the DVSDK for any platform. DVTB uses the Codec Engine VISA APIs and Linux driver peripheral APIs to encode and decode video, image, audio and speech streams.

Using DVTB, you can configure codecs and/or peripherals before starting a data flow. This enables you to try different use case scenarios and evaluate the system.

The DVSDK installation places DVTB in the /home/<useracct>/dv sdk_#_#/ dvtb_#_#_ # directo ry, where #_#_# is the DVTB version number).

To install DVTB to the target file system, per form the followin g steps on the host machine where the DVSDK has been installed:

1) Make sure the Rules.make file defines PLATFORM correctly as described in Section 4.6.

2) Perform the following commands:

host $ cd /home/<useracct>/dvsdk_#_#/dvtb_#_#_# host $ make clean CONFIGPKG=dm6446 host $ make CONFIGPKG=dm6446

4-18

Using the Digital Video Test Bench (DVTB)

3) Copy the binaries " dv tb- d" and "dvtb-r" to /opt/dvsdk/dm 6 446 on the device’s target filesystem and run it there. It must be in the sam e directory as the DSP executables.

For further details on the DVTB, see the following documents:

❏ Release Notes.

/home/<useracct>/dvsdk_#_#/dvtb_#_#_#/docs/dvtb_release_notes.pdf

❏ User Guide..

/home/<useracct>/dvsdk_#_#/dvtb_#_#_#/docs/dvtb_user_guide.pdf

DVEVM Software Setup 4-19

Running The SoC Analyzer

4.10 Running The SoC Analyzer

Built upon T exas Instruments' eXpressDSP data visualization technology (DVT), the SoC Analyzer simplifies debugging, analysis, and optimization of DVEVM applica tions. It collects execution, inte raction, and resource utilization logs from Linux, DSP/BIOS, Codec Engine, and driver s and presents system-level analysis and graphical visualization such as:

❏ System execution flow ❏ System performance ❏ Resource utilization ❏ Processor interaction

4-20

Install the SoC Analyzer as described in Section 4.3.4.

Documentat ion for DSP-Side Develo pment

To run the SoC Analyzer, double-click the SoC Analyzer icon on the Windows Desktop or select it from the Windows Start menu under Texas Instruments.

The SoC Analyzer c ome s w ith onl in e he lp , whi c h can be accessed from the SoC Analyzer Help menu (choose Help->Help Contents). Select the DM644x SoC Analyzer User Guide.

Follow the "Getting Started" chapter of the DM644x SoC Analyzer User Guide, which includes steps on how to run the tool with d emonstration logs shipped with the product. This "Getting Started" chapter also contains the steps you should perform to enable your applications to collect logs for the SoC Analyzer. The DV EVM Demo Application has such logging enabl ed by default. The uIm age must be rebuilt to enable logging.

4.11 Documentation for DSP-Side Development

After you have ins talled the DVSDK software, yo u can begin to create and modify DSP-side applications for your DM644x.

The following table lists places to look for doc umentation on usi ng each component of the DVSDK . Documents in PDF, HTML, and text format are included in the installations with each produ ct.

Table 4-1. Documentation for DVSDK Components

Component Title Location

DSP/BIOS

Code Generation Tools

Framework Components

Digital Video Test Bench

TMS320C6000 DSP/BIOS API Reference (SPRU403)

Application Notes www.dspvillage.com

TMS320C6000 Optimizing C Compiler User's Guide

(SPRU187)

TMS320C6000 Programmer's Guide (SPRU189)

Release Notes

README.txt

/home/<useracct>/dvsdk_#_#/bios_5_#/packages/ti/bios/doc

www.dspvillage.com

/home/<useracct>/dvsdk_#_#/framework_components_#_#

/home/<useracct>/dvsdk_#_#/dvtb/docs

DVEVM Software Setup 4-21

Documentation for DSP-Side Development

Table 4-1. Documentation for DVSDK Components

Component Title Location

Codec Engine

Section 4.9, Using the Digital Video Test Bench (DVTB)

Codec Engine Application Developer User's Guide

(SPRUE67)

Codec Engine Server Integrator User's Guide

(SPRUED5)

Codec Engine Algorithm Creator User's Guide

(SPRUED6) Example Build and Run

Instructions Codec Engine API

Reference Codec Engine SPI

Reference Guide Configuration Reference

this document

/home/<useracct>/dvsdk_#_#/codec_engine_#_#/docs

/home/<useracct>/dvsdk_#_#/codec_engine_#_#/examples/

build_instructions.html

/home/<useracct>/dvsdk_#_#/codec_engine_#_#/docs/html/

index.html

/home/<useracct>/dvsdk_#_#/codec_engine_#_#

index.html

/docs/spi/html/

/home/<useracct>/dvsdk_#_#/codec_engine_#_#/xdoc/

index.html

XDC Tools (used by Codec Engine)

xDAIS

4-22

Documentation Links

xDAIS-DM (Digital Media) User Guide

(SPRUEC8)

/home/<useracct>/dvsdk_#_#/xdctools_#_#/docs/index.html

/home/<useracct>/dvsdk_#_#/xdais_5_00/packages/ti/xdais/dm/docs

Appendix A

Additional Procedures

This appendix describes optional procedures you may use depending on your setup and specific needs.

Topic Page

A.1 Changing the Video Input/Output Methods. . . . . . . . . . . . . . . . . . . . A–2

A.2 Putting Demo Applications in the Third-Party Menu . . . . . . . . . . . . A–5

A.3 Setting Up a TFTP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–7

A.4 Alternate Boot Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–8

A.5 Rebuilding DSP/BIOS Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–11

A.6 Restoring and Updating the EVM Hard Disk Drive. . . . . . . . . . . . . A–12

A-1

Changing the Video Input/Output Methods

A.1 Changing the Video Input/Output Methods

The EVM can input video using the following methods:

❏ Composite [default] ❏ S-Video (best quality)

In addition, there are three types of video output:

❏ Composite [default] (lowest quality) ❏ S-Video (medium quality) ❏ Component (best quality)

There is a significant q uality d ifference betwe en the differen t inputs and outputs. However, the cables in the DVEVM kit support only com posite video. You will need to get S-Video or Component video cables from another source.

A.1.1 Using S-Video Input

To switch to higher-quality S-Video input, follow these steps:

1) Connect your S-Video conne ctor to the S-Video inp ut port, which is directly to the left of the currently-used composite video input port.

2) Select S-Video input on the command line when you execute the encode or encodedecode demo using the '-x' flag.

S-Video

A-2

A.1.2 Using S-Video Output

To switch to higher-quality S-Video output, follow these steps:

1) Unplug the com pos it e video c onn ec tor. Then, connect your S-Video connector to the S-Video output port, which is to the right of the currently-used compo si te vid eo outp ut por t.

The DVEVM kit does n ot include an S-Video cab le. In add ition, yo u will need a video display with an S-Video input.

Changing the Video Input/Output Methods

S-Video

OUT

2) On the kernel command lin e, you can configure the EVM to select both NTSC vs. PAL and the S-Video output format (see Section

4.3.7, Configuring the Boot Setup for PAL Video Users). For example, if you want both NTSC and S-Video output, use the following:

davinci_enc_mngr.ch0_output=SVIDEO davinci_enc_mngr.ch0_mode=NTSC

If you want both PAL and S-Video, use the following:

davinci_enc_mngr.ch0_output=SVIDEO davinci_enc_mngr.ch0_mode=PAL

Addition al Procedur es A-3

Changing the Video Input/Output Methods

A.1.3 Using Component Video Output

To switch to highest-quality component video output, follow these steps:

1) Connect your comp onent video connectors to the connectors in a square on the far left of the board. Instead of connecting one connector as wit h composite video, conn ect the YPrPb connecto rs as shown here.

The DVEVM kit does not include a 3-connector cable used for component (YPrPb) v id eo. Th e cabl e y ou us e ma y hav e red , gr een , and blue connectors, but you should be aware that the Y, Pr, and Pb signals used by component video do not correspond to RGB signals. In addition, you will need a video display with component video inputs.

Pr Pb

2) On the kernel c ommand line, you can configure the EVM to s elect both NTSC vs. PAL and the component video output format (see Section 4.3.7, Configuring the Boot Setup for PAL Video Users). For example, if you want both NTSC and comp onent video outp ut, use the following:

davinci_enc_mngr.ch0_output=COMPONENT davinci_enc_mngr.ch0_mode=NTSC

If you want both PAL and component video, use the following:

davinci_enc_mngr.ch0_output=COMPONENT davinci_enc_mngr.ch0_mode=PAL

A-4

Putting Demo Applications in the Thir d-Part y Men u

A.2 Putting Demo Applications in the Third-Party Menu

You can add y our own demos to the Third-Party Menu by followin g the steps in this section. Only four demos can be shown at once in the userinterface. If you add more than four demos , the first four in alphabetic al order are shown.

1) Create the following files for your demo:

■ logo.jpg. This is the logo of the third party company which will be showed next to the demo description. The picture needs to be in JPEG format and of size 50x50.

■ readme.txt. This i s a text file. T he first 40 characters of t he file should briefly des cribe the demo. The demo int erface displays up to 40 characters, but stops if it encounters a new line character. For example, the file might contain "Video Phone demo" or "Network Audio demo".

■ app.sh. This is an exec utable that launches your demo. It can either be the demo executable itself or a shell script that executes the executable. (If this is a shell script, make sure its executable bit is set for all). A script could look something like:

#!/bin/sh exec ./mydemoname

■ other files. If app.sh is a shel l scr ip t, your dem o e xe cu table wi ll have some other nam e. You may also need to incl ude data fil es or other files used by the executable.

Note: The demo application mu st use relative paths to access any files it needs at runtime. This because the archive is extra cted to another location from which the demo is executed.

2) Create a gzipped tar file (ends with .tar.gz) that archives all the files in the previous list. For example, if your files are logo.jpg, readme.txt, and app.sh, you could use the following command:

tar cvzf ti_videophone.tar.gz logo.jpg readme.txt app.sh

Name the tar file using <company>_<demoname>.tar.gz (with no spaces in the file name ) as the convention. For example, a video phone demo created by Texas Instruments would be named ti_videophone.tar.gz. The name must be unique since all demos ar e installed in the same directory.

The three required files must be in the top-level directory of the archive. Other files ma y be in subdirectories, so long as the demo

Addition al Procedur es A-5

Putting Demo Applications in the Third-Party Menu

uses relative references to ac cess the m. For ex ample , the follow ing directory structure might be used in the archive:

To check the format of the file you create, execute the following command in Linux. The result should say "gzip compressed data".

file <filename>.tar.gz

3) Put your archive in the "thirdpartydemos" subd irectory of the target installation directory. This is where the DVSDK software was installed on the target file system. The default target installation directory is /opt/dvsdk/dm6446, so the default location for demo archives is /opt/dvsdk /dm6446/thirdpartydemos. Do not extract th e contents of the archive in this location. Extraction is performed behind-the-scenes each time the demo is run.

A-6

A.3 Setting Up a TFTP Server

You can check to see if a TFTP server is set up with the following command:

host $ rpm -q tftp-server

If it is not set up, you can follow these steps:

1) If you have not yet installed MontaVista Linux Demo Edition (see Section 4.3.1), you can down lo ad a TFTP serv er for you r Linux hos t from many locations on the Internet. Search for "tftp-server".

Setting Up a TFTP Server

2) To install TFTP, use this command, where

-#.#-# is the version

number portion of the filename:

host $ rpm -ivh tftp-server-#.#-#.rpm

You should see the following output:

warning: tftp-server-#.#-#.rpm: V3 DSA signature: NOKEY, key ID 4f2a6fd2 Preparing... #################################### [100%] 1:tftp-server ################################### [100%]

3) Confirm that TFTP is installed with this command:

host $ /sbin/chkconfig --list | grep tftp

If you want to turn on the TFTP server, use this command:

/sbin/chkconfig tftp on

The default root location for servicing TFTP files is /tftpboot.

Addition al Procedur es A-7

Alternate Boot Methods

A.4 Alternate Boot Methods

The default configu ration for the EVM is to boot from fla sh with the file system on the EVM’s ha rd drive. The following ar e alternate ways you may want to boot the board:

❏ TFTP boot with hard drive file system (Section A.4.2) ❏ Flash boot with NFS file system (Section A.4.3) ❏ TFTP boot with NFS file system (Section A.4.4)

Section 4.3.7 discusses booting in PAL mode vs. NTSC mode. The subsections that follow show the environment variable settings used

to enable each boot method.

Note: Using video files from an NFS file system may result in a low frame rate when encoding/decoding videos.

To boot in one of these modes, follow these steps:

1) Power on the EVM board, and abort the automatic boot sequence by pressing a key in the console window (Section 2.2).

2) Set the environm ent v aria ble s i ndi ca ted in the foll owi ng s ubsec ti ons for the boot mode you want to use. (Note that the command should be typed on a single line.)

3) If you want to use these settings as the default in the future, save the environment:

EVM # saveenv

4) Boot the board using the settings you have made:

EVM # boot

A.4.1 Booting from Flash Using the EVM’s Hard Drive File System

This is the default, out-of-the-box boot confi gur ati on .

setenv bootargs

A-8

To boot in this mode, set th e following parameters after you abort the automatic boot sequence:

EVM # setenv bootcmd bootm 0x2050000

setenv bootcmd nboot 80700000 0 a0000;bootm EVM # setenv bootargs video=davincifb:vid0=720x576x16, 2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K davinci_enc_mngr.ch0_output=COMPOSITE davinci_enc_mngr.ch0_mode=$(videostd) console=ttyS0,115200n8 noinitrd rw ip=dhcp root=/dev/hda1 mem=120M

Note: If you have flashed a n ew kernel to the NOR fla sh at an addre ss other than 0x2050000, modify the bootcmd definition accordingly.

When you boot, look for the following line that confirms the boot mode:

## Booting image at 02050000 ...

A.4.2 Booting via TFTP Using the EVM’s Hard Drive File System

To boot in this mode, set th e following parameters after you abort the automatic boot sequence:

Alternate Boot Methods

EVM # setenv bootcmd 'dhcp;bootm' EVM # setenv bootargs video=davincifb:vid0=720x576x16,

2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K davinci_enc_mngr.ch0_output=COMPOSITE davinci_enc_mngr.ch0_mode=$(videostd) console=ttyS0,115200n8 noinitrd rw ip=dhcp root=/dev/hda1 mem=120M

EVM # setenv serverip <tftp server ip address> EVM # setenv bootfile <path on tftpserver>/uImage

When you boot, look for the following lines that confirm the boot mode:

TFTP from server 192.168.160.71; our IP address is

192.168.161.186 Filename 'library/davinci/0.4.2/uImage'. ... ## Booting image at 80700000 ...

Addition al Procedur es A-9

Alternate Boot Methods

A.4.3 Booting from Flash Using NFS File System

To boot in this mode, set th e following parameters after you abort the automatic boot sequence:

EVM # setenv bootcmd 0x2050000 setenv bootcmd nboot 80700000 0 a0000;bootmEVM # setenv nf-

shost <ip address of nfs host>

EVM # setenv rootpath <directory to mount*> EVM # setenv bootargs video=davincifb:vid0=720x576x16,

*For example, <directory to mount> might be

/home/<useracct>/workdir/filesys.

Note: If you have flashed a n ew kernel to the NOR fla sh at an addre ss other than 0x2050000, modify the bootcmd definition accordingly.

When you boot, look for the following lines that confirm the boot mode:

## Booting image at 02050000 ... ... Starting kernel ... ... VFS: Mounted root (nfs filesystem).

A.4.4 Booting via TFTP Using NFS File System

To boot in this mode, set th e following parameters after you abort the automatic boot sequence:

EVM # setenv bootcmd 'dhcp;bootm' EVM # setenv serverip <tftp server ip address> EVM # setenv bootfile <name of kernel image> EVM # setenv rootpath <root directory to mount> EVM # setenv nfshost <ip address of nfs host> EVM # setenv bootargs video=davincifb:vid0=720x576x16,

A-10

The <root directory to mount> must match the file system that you set up on your workstation. For example, /home/<useracct>/workdir/filesys.

When you boot, look for the following lines that confirm the boot mode:

TFTP from server 192.168.160.71; our IP address is

192.168.161.186 Filename 'library/davinci/0.4.2/uImage'. ... Starting kernel ... ... VFS: Mounted root (nfs filesystem).

A.5 Rebuilding DSP/BIOS Link

If you want to rebuild the DSP /BIOS Link package, follow these steps (assuming you are using the bash shell):

1) Edit the davinci_mvlpro5.0.mk file, which is in the /home/<useracct>/dvsdk_#_#/dsplink_#/packages/dsplink/ma ke/Linux/ directory, to make sure the BASE_BUILDOS and BASE_CGTOOLS variables correctly point to the correct locations. For example:

Rebuilding DSP/BIOS Link

BASE_BUILDOS := /home/<useracct>/workdir/lsp/ti-davinci/linux-2.6.18_pro500 BASE_CGTOOLS := /opt/mv_pro_5.0/montavista/pro/devkit/arm/v5t_le/bin

2) Define the DSPLINK environment variable to be the absolute path to the "dsplink" directory . (Use export for bash shell, and setenv for tcsh shell.) For example:

host $ export DSPLINK=/home/<useracct>/dvsdk_#_#/dsplink_#/packages/dsplink

3) Move to the Linux build script directory:

host $ cd $DSPLINK/etc/host/scripts/Linux

4) Build DSP/BIOS Link as follows:

host $ sh –f buildmodule.sh

5) The rebuilt ker nel module is called dsplinkk.ko. It is l ocated in the $DSPLINK/gpp/export/BIN/Linux/Davinci/DM6446/RELEASE/ directory.

Addition al Procedur es A-11

Restoring and Updating the EVM Hard Disk Drive

A.6 Restoring and Updating the EVM Hard Disk Drive

This section describes how to restore and update all the files on the EVM hard disk drive (H DD), including the Linux file sys tem and the demos. Using these restore proced ures, you can return your board to a known state if anything happens to the data on the EVM board’s HDD.

This section assumes that you have configured a host Linux workstation with the software necessary to perform an NFS root mount with the EVM as described in Section 4.3.5 and Section 4.3.6.

For further information about upg radi ng and flashi ng, s ee the TI DaVinci Technology Developers Wiki at http://wiki.davincidsp.com.

In this section, U-Boot is always located at the start of flash memory (address 0x0200000 0) on the target. Si mila rly, uImage, the Linux kernel program, is booted from the target flash memory address of 0x02050000.

Note: If you have flashed a n ew kernel to the NOR fla sh at an addre ss other than 0x2050000, then the flash memory address will be different.

A.6.1 System Setup

You should make sure the following system setup steps have been performed before you attempt to restore or update the hard disk drive:

1) Inspect jumper J4, which is labeled "CS2 SELECT". Make sure FLASH is selected.

2) Connect the Ethernet port of the host workstation to a router. Configure the host Ethernet port to obtain IP address dynamically via a DHCP server running inside the router.

3) Connect the Ethernet p ort of the target EVM to anothe r port on the same router. This establishes a network connection with your host workstation.

4) Connect an RS-232 c able from the UART0 port of the target EVM board to the host workstation.

5) On the host workstatio n, open a ter minal sess ion to the target EVM board with the following characteristics:

■ Bits per Second: 115200

■ Data Bits: 8

■ Parity: None

■ Stop Bits: 1

■ Flow Control: None

A-12

For example, you ca n cr eate a terminal sessi on wit h HyperTerminal or TeraTerm on MS Windows, and Minicom or C-Kermit on Linux.

6) Start an NFS server on the host workstation. This document assumes the host path /home/user/workdir/filesys contains a file system that the target EVM can use for root mounting.

A.6.2 Configure EVM for NFS Root Mount

Follow these steps to configure your EVM for an NFS root mount:

1) Configure the Boot Switches (S3) to 1011111110. This is the bank of switches in the middle of the EVM.

2) Power on the EVM and hit any key to enter U-Boot.

3) Configure bootcmd as follows to boot the Linux kernel via flash.

EVM # setenv bootcmd bootm 0x2050000

Note: If you have flashed a new kernel to the NOR flash at an address other than 0x2050000, modify this command accordingly.

4) Configure bootargs as follows to root mount the file system from NFS:

Restoring and Updating the EVM Hard Disk Drive

EVM # setenv rootpath <root directory to mount> EVM # setenv nfshost <ip address of nfs host> EVM # setenv bootargs video=davincifb:vid0=720x576x16,

The nfsroot option in this command uses the host workstation IP address. Make sure to replace the <host ip addr> with the actual address of your host Linux workstation.

5) Optional: Print the U-Boot parameters

EVM # printenv

6) Save the U-Boot parameters

EVM # saveenv

7) Boot EVM from NFS on the host Linux workstation

EVM # boot

8) Log into MontaVista Linux as "root".

Addition al Procedur es A-13

Restoring and Updating the EVM Hard Disk Drive

A.6.3 Restore the EVM Hard Disk Drive

The EVM hard disk drive (HDD) can be restored from a target EVM HDD partition or from the host Linux workstation file system. Either method will achieve the same result.

Restoring the EVM HDD takes 10 to 15 minutes. The restore script must uncompress 600 MB of com pressed data and load it to the /dev/hda1 partition.

After the hard drive restore process has completed, make sure to restart the EVM and configure U-Boot to root mount via the local HDD. The steps for this type of boot are provid ed in Section A.4.1, Booting from Fl ash Using the EVM’s Hard Drive File System.

A.6.4 Restoring From Target EVM HDD Partition

Follow these steps to restor e the HDD from the restore partition on th e HDD itself:

1) Make a directory for mounting the HDD restore partition:

EVM # mkdir /mnt/restore

2) Mount the HDD restore partition:

EVM # mount -t ext3 /dev/hda2 /mnt/restore

3) Set the Linux da te variable to today 's date. If the da te is too far off, the target file system installation generates a bunch of warnings.

EVM # date MMDDHHMMCCYY

For example, for 9:00 am on April 18th, 2006, enter 041809002006.

4) Change directory to /mnt/restore:

EVM # cd /mnt/restore

5) Add execute permissions for the script:

EVM # chmod +x restore-hdd

6) Run the restore script:

EVM # ./restore-hdd

A-14

Restoring and Updating the EVM Hard Disk Drive

7) The script will ask for confirmation: "This will destroy all data on /dev/hda1 - are you sure?" Type yes.

8) After the HDD restore is complete, shutdown the EVM:

EVM # halt

9) When the "Power dow n" mess age is print ed in the termi nal win dow, it is safe to power down the EVM.

10) Restart the EVM and con figure U-Boot to root moun t via the local HDD. Follow the steps in Section A.4.1, Booting from Flash Usi ng the EVM’s Hard Drive File System.

A.6.5 Restoring From Host Linux Workstation File System

This section assumes that you have installed the DVEVM software to the host Linux /workdir/fil esys/restore dire ctory. After an NFS mount, this is equivalent to /restore for the target EVM.

Follow these steps to restore the HDD from the host Linux workstation restore directory:

1) On your host workstation, copy the restore directory from the TI DVSDK disk to /home/<useracct>/workdir/filesys/restore. After NFS mounting this file system, this will appear as the /restore directory on the EVM.

2) Login to the EVM as root.

Addition al Procedur es A-15

Restoring and Updating the EVM Hard Disk Drive

3) Go to the /restore directory.

EVM # cd /restore

4) Set the Linux da te variable to today 's date. If the da te is too far off, the target file system in stallation generates warnings for each file it installs.

EVM # date MMDDHHMMCCYY

For example, for 9:00 am on April 18th, 2006, enter 041809002006.

5) Add execute permissions on the prep-hdd script.

EVM # chmod +x prep-hdd

6) Run the prep-hdd script in the /restore directory.

EVM # ./prep-hdd /restore

7) The script will ask for confirmation: "Are you sure you want to partition and format /dev/hda1?" Type yes.

8) After the HDD restore is complete, shutdown the EVM:

EVM # halt

9) When the "Power dow n" mess age is print ed in the termi nal win dow, it is safe to power down the EVM.

10) Restart the EVM and con figure U-Boot to root moun t via the local HDD. Follow the steps in Section A.4.1, Booting from Flash Using the EVM’s Hard Drive File System.

If you instead manually restore the overlay.tar.gz file from disk 1 on an NFS file system, the demos will likely p roduce a cryp tic error. Although such manual res tores are not documented or recomme nded, you can correct the problem by turning off the s-bit as follows:

EVM # cd /opt/dvsdk/dm6446 EVM # chmod u-s ${install}/encode ${install}/decode ${install}/encodedecode \ ${install}/interface

A-16

Index

A/V files 4-8 AAC audio 3-9 application 4-4 ARM9 1-3 arrow buttons 3-4 audio cables 2-3

battery 1-4, 3-3 bin files 4-6 BIOS_INSTALL_DIR environment variable 4-16 block diagram 1-4 boot configurations A-8

flash with hard drive A-8 flash with NFS A-10 NFS 4-11 standard 3-2 TFTP with hard drive A-9

TFTP with NFS A-10 boot sequence A-8 build environment 4-13

C64+ DSP 1-3 cables 1-3

connecting 2-2 camera 1-3, 2-3 clock battery 1-4 Code Search button 3-3 Codec Engine 3-5, 3-6, 4-4

documentation 4-22 Codegen Tools

documentation 4-21

installat ion location 4-7 COM port 2-6 command line demos 3-9 command prompts 4-3 component video A-2, A-4 composite video A-2

console window 2-6 contents of kit 1-3 CPU load 3-5

data files 4-8 DaVinci technology 1-2 Decode demo 3-4, 3-8

command line 3-10

demos 3-2

command line 3-9 digital camera 1-3 Digital Video Test Bench (DVTB)

building 4-18, 4-21

documentation 4-18, 4-21 directories

installation 4-8 disks

file contents 4-2

mounting 4-5 display 1-3, 2-2 DISPLAY environment variable 4-5 DSP 4-4 DSP/BIOS

documentation 4-21

installation location 4-7 DSP/BIOS Link 4-4 DVD button 3-3 DVEVM 1-2

installing software 4-7 DVEVM software

rebuilding 4-16 DVSPB 4-3

electrostatic precaution s 2-2 Encode + Decode demo 3-4, 3-6

command line 3-10 Encode demo 3-4, 3-7

command line 3-10 environment variables

Index--1

Index

BIOS_INSTALL_DIR 4-16 FC_INSTALL_DIR 4-16

XDC_INSTALL_DIR 4-16 ESD precautions 2-3 Ethernet 2-4

setup 2-5 EVM # prompt 2-6, 4-3 examples 3-2 exit demo 3-5 exports file 4-10

FC_INSTALL_DIR environment variable 4-16 file extensions 3-7, 3-9 file system 4-9

video performance 4-9 files

Decode demo 3-8

Encode demo 3-7

on disks 4 -2 flash memory

boot configuration A-8, A-10

G.711 speech 3-7, 3-9

H.264 video 3-6, 3-7, 3-9 hard disk drive A-12 hard drive 1-3

boot configuration A-8, A-9 HDD A-12

restore A-12, A-14 host $ prompt 4-3

Info/Select button 3-5 installation location 4-8 installing

DVEVM software 4-7

hardware 2-2

Linux software 4-6 IR remote 1-3, 2-5, 3-3

resetting code 3-3

kit contents 1-3

LCD display 1-3, 2-2 Link, DSP/BIOS 4-4 Linux 4-4

installing 4-6 kernel 4-14 versions supported 4-6

Linux Support Package 4-14

microphone 1-3, 2-4 monitor 2-2 MontaVista Linux

demo version 4-3

full version 4-3 MPEG2 video 3-9 MPEG4 video 3-7, 3-9 multimedia peripherals 1-4

NFS server 4-9

boot configuration A-10

testing 4-11

video performance 4-9 NTSC video 2-2, 4-12

OSD show and hide 3-5 OSD toggle 3-5 overlay.tar.gz file A-16

PAL video 2-2, 4-12 PATH environment variable 4-13 Pause button 3-5 performance 4-9 peripherals 1-4, 2-2 Play button 3-5 ports 2-4 power 2-5 Power button 3-5 power cable 2-4, 2-5

Index--2

Index

prompts 4-3

quit demo 3-5

rebuilding

DVEVM software 4-16

Linux kernel 4-14 Record button 3-5 Red Hat Enterprise Linux 4-6 remote control 1-3, 3-3

resetting code 3-3 restore HD D A-12 Rules.make file 4-16 running application s 3-4

s-bit A-16 serial cable 2-6 serial connection 2-5 SoC Analyzer 4-2, 4-9 software 4-2

components 1-3, 4-4

installing 4-6 Spectrum Digital website 1-4 standalone demos 3-2 static precautions 2-2 Stop button 3-5 S-Video A-2

input A-2

output A-3

target $ prompt 4-3 terminal session 2-6 test program 4-13 TFTP

boot configuration A-9, A-10 server A-7

transfer files to board 4-17 Third-Party Menu 3-4, A-5 TMS320DM6446 1-3 transparency of OSD 3-5

U-Boot utility 4-14 uImage boot file 4-17

video cable 2-2 video camera 1-3, 2-3

power 2-3 video formats A-2 videostd environment variable 4-12 VISA APIs 4-4

xDAIS 4-4 XDC_INSTALL_DIR environment variable 4-16 xDM 4-4

YPrPb A-4

Index--3

Index--4

Spectrum Digital, Inc.

508168-0001C

Texas Instruments TMS320DM6446 DVEVM User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

About This Guide

Additional Documents and Resources

Preface

Notational Conventions

Trademarks

Contents

DVEVM Overview

1.1 Welcome!

1.2 What’s in this Kit?

1.3 What’s on the Board?

1.4 What’s Next?

EVM Hardware Setup

2.1 Setting U p the Hardware

2.2 Connecting to a Console Window

Running the Demonstration Software

3.1 Default Boot Configuration

3.2 Starting the Standalone Demos

3.3 Running the Standalone Demos

3.3.1 Shutting Down the Demos

3.3.2 About the Encode + Decode Demo

3.3.3 About the Encode Demo

3.3.4 About the Decode Demo

3.3.5 About the Third Party Menu

3.4 Running the Demos from the Command Line

3.5 Running the Network Demo

DVEVM Software Setup

4.1 Software Overview

4.1.1 Command Prompts in This Guide

4.1.2 Software Components

4.2 Preparing to Install

4.3 Installing th e Sof t ware

4.3.1 Installing the Target Linux Software

4.3.2 Installing the DVSDK Software

4.3.3 Installing the A/V Demo Files

4.3.4 Installing the SoC Analyzer

4.3.5 Exporting a Shared File System for Target Access

4.3.6 Testing the Shared File System

4.3.7 Configuring the Boot Setup for PAL Video Users

4.3.8 Notes on Using Evaluation/Production Codecs

4.4 Setting Up the Build/Development Environment

4.4.1 Writing a Simple Program and Running it on the EVM

4.5 Building a New Linux Kernel

4.6 Rebuilding the DVEVM Software for the Target

4.7 Booting the New Linux Kernel

4.8 Testing the Build Environment

4.9 Using the Digital Video Test Bench (DVTB)

4.10 Running The SoC Analyzer

4.11 Documentation for DSP-Side Development

Additional Procedures

A.1 Changing the Video Input/Output Methods

A.1.1 Using S-Video Input

A.1.2 Using S-Video Output

A.1.3 Using Component Video Output

A.2 Putting Demo Applications in the Third-Party Menu

A.3 Setting Up a TFTP Server

A.4 Alternate Boot Methods

A.4.1 Booting from Flash Using the EVM’s Hard Drive File System

A.4.2 Booting via TFTP Using the EVM’s Hard Drive File System

A.4.3 Booting from Flash Using NFS File System

A.4.4 Booting via TFTP Using NFS File System

A.5 Rebuilding DSP/BIOS Link

A.6 Restoring and Updating the EVM Hard Disk Drive

A.6.1 System Setup

A.6.2 Configure EVM for NFS Root Mount

A.6.3 Restore the EVM Hard Disk Drive

A.6.4 Restoring From Target EVM HDD Partition

A.6.5 Restoring From Host Linux Workstation File System

Index