TMS320DM357 DVEVM v2.05
Getting Started Guide
Literature Number: SPRUGH0
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-
STRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished
end-product fitfor generalconsumer use. Persons handlingthe product(s) must haveelectronics
training and observe good engineering practice standards. As such, the goods being provided
are not intended to be complete in terms of required design-, marketing-, and/or manufacturing-
relatedprotectiveconsiderations, includingproductsafetyandenvironmentalmeasurestypically
found in end products that incorporate such semiconductor components or circuit boards. This
evaluation board/kit does not fall within the scope of the European Union directives regarding
electromagnetic compatibility, restricted substances (RoHS), recycling (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 returned within 30 days from the date of delivery for a full refund. THE FORE-
GOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND
IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, IN-
CLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR
PURPOSE.
The user assumes all responsibility and liability for proper and safe handling of the goods.
Further, the user indemnifies TI from all claims arising from the handling or use of the goods.
Due to the open construction of the product, it is the user's responsibility to take any and all
appropriate precautions with regard to electrostatic discharge.
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY
SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CON-
SEQUENTIAL DAMAGES.
TI currently deals with a variety of customers for products, and therefore our arrangement with
the user is not exclusive.
TI assumes no liability for applications assistance, customer product design, software
performance, or infringement of patents or services described herein.
PleasereadtheUser's Guide and, specifically, the Warnings andRestrictions notice intheUser's
Guide prior to handling the product. This notice contains important safety information about
temperatures and voltages. For additional information on TI's environmental and/or safety pro-
No license is granted under any patent right or other intellectual property right of TI covering or
relating to any machine, process, or combination in which such TI products or services might
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Mailing Address:
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Post Office Box 655303
Dallas, Texas 75265
Copyright © 2008, Texas Instruments Incorporated
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FCC Warning
This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMON-
STRATION, OR EVALUATION PURPOSES ONLY 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 interference. Operation of this equipment in other environments may cause interfer-
ence with radio communications, in which case the user at his own expense will be required to
take whatever measures may be required to correct this interference.
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Preface
About This Guide
The DVEVM (Digital Video Evaluation Module) is an evaluation platform
that showcases the DaVinci architecture and lets users evaluate the
power and performance of DaVinci 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 document for the DVEVM. Other documents provide more
in-depth information. See the DVEVM documentation section of the
release notes for a complete list of documents that have been included
with the product.
Notational Conventions
This document uses the following conventions:
❏
Program listings, program examples, and interactive displays are
shown in a mono-spaced font. Examples use boldfor emphasis,
and interactive displays use boldto distinguish commands that you
enter from items that the system displays (such as prompts,
command output, error messages, etc.).
❏
Square brackets ( [ and ] ) identify an optional parameter. If you use
an optional parameter, you specify the information within the
brackets. Unless the square brackets are in a bold typeface, do not
enter the brackets themselves.
v
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Trademarks
Trademarks
The Texas Instruments logo and Texas
Instruments are registered trademarks 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,
TMS320C6000.
TMS320C5000,
and
MS-DOS, Windows, and Windows NT are trademarks of Microsoft
Corporation.
UNIX is a registered trademark of The Open Group in the United States
and other countries.
Linux is a registered trademark of Linus Torvalds.
Solaris, SunOS, and Java are trademarks or registered trademarks of
Sun Microsystems, Inc.
All other brand, product names, and service names are trademarks or
registered trademarks of their respective companies or organizations.
December 15, 2008
vi
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Contents
1
DVEVM Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
This chapter introduces the DVEVM (Digital Video Evaluation Module).
1.1
1.2
1.3
What’s in this Kit?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
What’s on the Board?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
2
3
EVM Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
This chapter tells you how to set up the EVM hardware.
2.1
2.2
Setting Up the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Connecting to a Console Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Running the Demonstration Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
This chapter explains how to run the software demos provided with the DVEVM kit.
3.1
3.2
3.3
Default Boot Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Starting the Standalone Demos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Running the Standalone Demos. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
3.3.1
3.3.2
3.3.3
3.3.4
Shutting Down the Demos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
About the Encode + Decode Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
About the Encode Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
About the Decode Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9
3.4
3.5
Running the Demos from the Command Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10
Running the Network Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11
4
DVEVM Software Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
This chapter explains how to use the software provided with the DVEVM.
4.1
Software Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
4.1.1
4.1.2
Command Prompts in This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Software Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
4.2
4.3
Preparing to Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Installing the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
Installing the Target Linux Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Installing the DVSDK Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Installing the A/V Demo Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Exporting a Shared File System for Target Access . . . . . . . . . . . . . . . . . . . .4-8
Testing the Shared File System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10
Notes on Using Evaluation/Production Codecs . . . . . . . . . . . . . . . . . . . . . .4-11
vii
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Contents
4.4
Setting Up the Build/Development Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
4.4.1 Writing a Simple Program and Running it on the EVM . . . . . . . . . . . . . . . . 4-12
4.5
4.6
4.7
4.8
4.9
Building a New Linux Kernel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Rebuilding the DVEVM Software for the Target . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Building with DSPLink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Booting the New Linux Kernel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Using the Digital Video Test Bench (DVTB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
A
Additional Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
This appendix describes optional procedures you may use depending on your setup and specific
needs.
A.1
A.2
A.3
A.4
A.5
A.6
Changing the Video Input/Output Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Putting Demo Applications in the Third-Party Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Setting Up a TFTP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
Alternate Boot Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Updating/Restoring the Bootloaders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Restoring the NAND Flash. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12
viii
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Chapter 1
DVEVM Overview
This chapter introduces the DVEVM (Digital Video Evaluation Module).
Topic
Page
1.1 What’s in this Kit? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
1.2 What’s on the Board? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
1.3 What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
1-1
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What’s in this Kit?
1.1
What’s in this Kit?
Your TMS230DM357 DVEVM kit contains the following hardware items.
Section 2.1, Setting Up the Hardware tells how to connect these
components.
❏
❏
❏
❏
EVM Board This board contains a DaVinci TMS320DM357 Digital
Media System-on-Chip.
Universal Power Supply. Both U.S. and European power are
supported.
Cables. Serial and Ethernet cables are included to allow for host
development.
IR Remote Control (Phillips). This universal remote control is
included to provide a user interface to the demo applications.
The DVEVM kit also comes with the following software disks. Information
about how to use the software components is provided in Chapter 4.
❏
DaVinci Digital Software Developer’s Kit, including TI DaVinci
Demonstration Version of MontaVista Linux Pro v5.0. (2 DVDs)
❏
Spectrum Digital EVM Tools
1-2
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What’s on the Board?
1.2
What’s on the Board?
The EVM comes loaded with peripherals your multimedia applications
may need to make use of. The following block diagram shows the major
hardware components.
IR
PWR
SW
TI JTAG
MSP430
JTAG
User LEDs
ARM JTAG
SD/
MMC
I2C
GPIO
S1
Storage
NAND
DC1 (EMIF)
3V
BAT
MSP430
Boot
NAND
CPLD
DC6
I2C
I2C
GPIO
EMIF
Serial Media
CPLD
PGM
3.3V Board Supply Voltage
1.8V I/O Voltage
DDR
DC7
TMS320
DM357
DDR
DDR
1.2V CPU Core Voltage
Video Ports
EMAC
DC5 (VIDEO OUT)
DC4 (VIDEO IN)
DC3
DC2
TVP
5146
ENET
PHY
S/PDIF
Drivers
AIC33
10/100
ENET
UART
Diagram provided courtesy of Spectrum Digital Inc.
Figure 1–1 DM357 Hardware Block Diagram
For more information about the hardware, see the Spectrum Digital
The DaVinci EVM incorporates a battery holder to provide backup power
to the MSP430’s real-time clock when the power is not applied to the
board. The battery is not included in the kit. See the Spectrum Digital
DaVinci EVM Technical Reference for suggested battery part numbers.
DVEVM Overview
1-3
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What’s Next?
1.3
What’s Next?
To get started evaluating the DVEVM kit and developing applications for
the DM357, begin by using this Getting Started guide. It will step 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 DM357 architecture, see the following:
❏
Spectrum Digital website:
❏
❏
TI Linux Community for DaVinci Processors:
❏
❏
❏
Codec Engine Application Developer's Guide (SPRUE67)
Other PDF documents on the DVDs included with the DVEVM kit
1-4
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Chapter 2
EVM Hardware Setup
This chapter tells you how to set up the EVM hardware.
Topic
Page
2.1 Setting Up the Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
2.2 Connecting to a Console Window . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
2-1
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Setting Up the Hardware
2.1
Setting Up the Hardware
To set up the hardware provided with the DVEVM kit, use the steps that
follow. You may skip steps if you do not need to access a particular
peripheral. For example, if you do not need to use the serial cable, skip
that step.
For reference, the numbers in the following photo of the DM357 EVM
target board correspond to the steps in the procedure.
8
1
2
6 5 7
3
4
Important: The EVM board is sensitive to static
discharges. Use a grounding strap or other device to
prevent damaging the board. Be sure to connect
communication cables before applying power to any
equipment.
2-2
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Setting Up the Hardware
1) On the S3 mini-dip switch, verify that positions 1 through 4 are
configured to boot from on-board NAND as in the following figure,
where the black rectangle is the switch location.
1
2
3
4
5
6
7
8
9
10
Also on the S3 mini-dip switch, verify that position 10 selects the
correct video format—NTSC or PAL. The following diagram shows
the switch in the NTSC setting.
2) Connect an audio speaker to Stereo Line Out (P5) and an audio
source to Stereo Line In (P3).
Audio In (P3)
Audio Out (P5)
EVM Hardware Setup
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Setting Up the Hardware
3) Connect your video display to the composite video-out RCA
connector (J8).
Composite
Video Out (J8)
4) Connect a video source (such as a camera or DVD player) to the
composite video-in RCA connector (J12). Then power on your video
input and output devices.
Composite
Video In (J12)
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Setting Up the Hardware
5) (Optional) If you plan to use the UART port for a console window,
connect the provided RS-232 null modem cable to the EVM UART
port (P6) and to a COM port on your host Linux workstation.
10/100
UART (P6)
Power (J14)
Ethernet (P2)
6) (Optional) If you will be using an Ethernet connection, connect the
provided Ethernet cable to the Ethernet port (P2) on the EVM board
and to an Ethernet network port.
Note: If you do not connect the board’s Ethernet controller to a
computer running a DHCP server, booting the board may take
several additional minutes.
7) Connect the provided power cable to the DVEVM power jack (J14)
on the board. To be ESD safe, plug in the other end of the cable only
after you have connected the power cord to the board.
8) Power on the EVM board by flipping the power switch (SW1).
EVM Hardware Setup
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Connecting to a Console Window
9) You should see the initial screen of the demo software on your video
display. Use the IR remote to run the software as described in
Chapter 3.
2.2
Connecting to a Console Window
You can open a console window that allows you to watch and interrupt
EVM boot messages by following these steps:
1) Connect a serial cable between 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 workstation and configure it to connect to that
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
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Chapter 3
Running the Demonstration Software
This chapter explains how to run the software demos provided 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
3.4 Running the Demos from the Command Line . . . . . . . . . . . . . . . . 3–10
3.5 Running the Network Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–11
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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 NAND flash 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 2.1)
To abort the standard boot, press any key in the console window (see
Section 2.2). Also see Section A.4, Alternate Boot Methods if you want to
change the boot configuration.
Note: It is best to power down the board cleanly in order to reboot,
rather than using the reset button or power switch. We recommend
that you use the shutdown command to shut down the operating
system and unmount the file system before removing power from
the board. This will help prevent corruption of the flash-based root
file system.
3.2
Starting the Standalone Demos
When you connect the EVM hardware, the pre-loaded examples run
automatically on your video 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 no connection to a workstation in the default boot
configuration. This is the mode documented in the rest of this
chapter.
The standalone demo was set 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 executed to start the demo web server and the
demo interface.
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Starting the Standalone Demos
❏
Command line. Once you have connected the EVM to a workstation
and installed the necessary software (as described in Section 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 line, see the demo documentation that is
linked to by the DVSDK release notes.
Note: When you run the demos from the command line, make sure
the interface process used by the standalone mode demos is not
running. Otherwise you will see error messages raised when device
drivers fail to open.
Running the Demonstration Software
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3-3
Starting the Standalone Demos
Once the EVM board has booted, your video
display should show a picture 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 kit demos. To do this,
hold down the "Code Search" button until
the red light on the remote stays lit. Then
press the "DVD" button and enter "0020"
as the code.
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 least a minute, then
reinserting the batteries. Then program
the remote as in Step 3.
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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.
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.
4) Use the up and down arrows to move to a setting you want to change.
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, processor load, and
rates are shown. Static settings are on the right. Dynamic data
reporting is on the left.
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Running the Standalone Demos
8) This information overlays the video; as a result the video you see is
darker than the actual video. To hide the information display so that
you can better see the video, press the "Info/Select" button on the IR
remote. You 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 the settings screen. Press
"Stop" from the settings screen to go back to the main menu.
For information about running 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.
3.3.1
Shutting Down the Demos
You can quit out of the demos completely while at the main menu screen
by pressing "Power" on the remote.
Note: It is best to power down the board cleanly in order to reboot
rather than using the reset button or power switch. We recommend
that you use the shutdown command to shut down the operating
system and unmount the file system before removing power from
the board. This will help prevent corruption of the flash-based root
file system.
To restart the demos, you can reboot the board or run the demos from
the command line as described in Section 3.4.
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Running the Standalone Demos
3.3.2
About the Encode + Decode Demo
The Encode + Decode demo allows you to record and playback video.
Video input comes from a source, it is encoded, then decoded, and sent
to your video display.
The Encode + Decode does only video processing; it does not encode
and decode audio or speech. The supported video algorithm is H.264
(.264 file extension).
Table 3–1 IR Remote Buttons for Encode + Decode Demo
IR Remote Button
Up/Down
Play or OK
Record
Mode
--
Action Performed
-- no action --
Setup
--
Begin demo
-- no action --
Info/Select
Info/Select
Left/Right
Pause
Setup
Run
Show / hide block diagram for demo
Toggle information display
Change information transparency level
Pause demo (press Play to resume)
Return to previous screen
Run
Run
Stop
Setup / Run
The video signal is passed to video encoders and decoders by the Codec
Engine.
To use this demo from the command line, see Section 3.4, Running the
Demos from the Command Line.
3.3.3
About the Encode Demo
Like the Encode + Decode demo, the Encode demo also encodes video.
In addition, it also encodes audio or speech. The audio/speech source is
the microphone.
The encoded data is written to files on the EVM’s NAND flash. The
possible filenames are demo.264, demo.mpeg4, demo264.g711, and
demompeg4.g711. Older versions of these files are overwritten as
needed.
The encode demo has a five minute time limit to prevent the demo from
filling up the NAND file system.
Output is not decoded and sent to your video display or speakers other
than to show the settings and dynamic data collected about the load and
rates.
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Running the Standalone Demos
Note that you can use only a speech encoder, not an audio encoder. The
supported video algorithms are H.264 (.264 extension) and MPEG4
(.mpeg4 file extension). The supported speech algorithm is G.711 (.g711
extension).
Table 3–2 IR Remote Buttons for Encode Demo
IR Remote Button
Up/Down
Mode
Action Performed
Setup
Change option selection
Change setting of selected option
Switch to decode demo
Left/Right
Play
Setup
Setup
Record (twice)
or OK
Setup / Run
Begin encode demo, send unencoded
data to display
Info/Select
Info/Select
Left/Right
Setup
Run
Show / hide block diagram for demo
Toggle information display
Run
Change information transparency level
(There is no display for encode demo
behind the information.)
Pause
Stop
Run
Pause demo (press Record to resume)
Return to previous screen
Setup / Run
The application runs on the ARM using Linux. The video and audio
signals are passed to encoders by the Codec Engine.
To use this demo from the command line, see Section 3.4, Running the
Demos from the Command Line.
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3.3.4
About the Decode Demo
Note: You must run the Encode demo before you can run the
Decode demo unless you have placed appropriately-named audio
and video files on the EVM’s NAND flash storage device. If you see
a message that says "File Not Found", please run the Encode
demo.
The Decode demo plays audio/speech and video files you select. You
can select a source video file and a source audio or speech file. Use the
left and right arrow buttons to choose from the demo files and the files
created by the Encode demo, which are stored on the EVM’s NAND
flash. The decoded signals are sent to your video display and speakers.
The supported video algorithms are H.264 (.264 extension) and MPEG4
(.mpeg4 file extension). The supported speech algorithm is G.711 (.g711
file extension).
Table 3–3 IR Remote Buttons for Decode Demo
IR Remote Button
Up/Down
Left/Right
Play or OK
Record
Mode
--
Action Performed
-- no action --
Setup
Setup
--
Select a different file combination
Begin decode demo
-- no action --
Info/Select
Info/Select
Left/Right
Pause
Setup
Run
Show / hide block diagram for demo
Toggle information display
Change information transparency level
Pause demo (press Play to resume)
Return to previous screen
Run
Run
Stop
Setup / Run
The application runs on the ARM using Linux. The video and audio
signals are passed to decoders by the Codec Engine.
To use this demo from the command line, see Section 3.4, Running the
Demos from the Command Line.
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3-9
Running the Demos from the Command Line
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 board’s serial port. These are the same
demos described in Section 3.2, Starting the Standalone Demos.
Before running demo applications from the command line, the CMEM
and accelerator kernel modules must be loaded. Use "lsmod" to see if
they are loaded. If not, use the following commands to load these
modules:
Target $ cd /opt/dvsdk/dm357
Target $ ./loadmodules.sh
To see the command-line options for the demos, use one of the following
commands with the -h or --help option:
Target $ ./encodedecode -h
Target $ ./encode -h
Target $ ./decode -h
You can also find the list of command-line options in encode.txt,
decode.txt, and encodedecode.txt in the respective demo directories of
the DVSDK package on the host.
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Running the Network Demo
3.5
Running the Network Demo
As an example of standard TCP/IP networking support, the DVEVM
examples include a small HTTP web server. This web server is started
as part of the Linux startup sequence. It configured to service requests
from web browsers on the standard TCP/IP port 80.
After the EVM board has booted, connect a PC to the same network to
address-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 see a web page with information about DaVinci technology
and the DVEVM software.
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 processes are running on the 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
and portable. The source code is included with the DVEVM software. You
can get the latest version directly from the web. The web server and CGI
scripts are installed on the target in the /opt/dvsdk/dm357/web directory.
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Chapter 4
DVEVM Software Setup
This chapter explains how to use the software provided with the DVEVM.
Topic
Page
4.1 Software Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
4.2 Preparing to Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5
4.3 Installing the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–6
4.4 Setting Up the Build/Development Environment . . . . . . . . . . . . . . 4–12
4.5 Building a New Linux Kernel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–13
4.6 Rebuilding the DVEVM Software for the Target . . . . . . . . . . . . . . . 4–14
4.7 Building with DSPLink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–15
4.8 Booting the New Linux Kernel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–16
4.9 Using the Digital Video Test Bench (DVTB) . . . . . . . . . . . . . . . . . . 4–17
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Software Overview
4.1
Software Overview
To begin developing applications, you need to install the DVEVM
development environment. This section outlines the steps required to
load the DVEVM software onto the development 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 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 ARM-side DVEVM software.
❏
Standalone demonstration software. This is provided on the
EVM’s NAND flash. The hard-wired examples encode and decode
audio, video, and speech. Another demo shows the board’s network
capabilities. See Section 3.2, Starting the Standalone Demos and
Section 3.5, Running the Network Demo.
❏
Disk 1: MontaVista Linux Pro v5.0 System Tools and Target File
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.
❏
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_dm357_setuplinux_#_#_#_#.bin (DVSDK installer)
mvl_5_0_0_demo_lsp_setuplinux_#_#_#_#.bin
xdctools_setuplinux_#_#_#.bin (XDCtools installer)
data.tar.gz (Contains A/V data files for use by the demos)
restore/dm357_flash_image_#_#_#_#.tar (Contains files for
NAND flash recovery. Contact TI Technical Worldwide Support if
you need details.)
■
■
restore/overlay.tar.gz (Contains demo files in case they are
needed for recovery. You can ignore this file.)
bios_setuplinux_#_#_#.bin (You can ignore this DSP/BIOS
installer because the DM357 EVM contains no DSP.)
❏
Disk 3: SDI Board Support Software. It contains EVM board
utilities.
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Software Overview
Texas Instruments, in agreement with MontaVista Software Inc., is
providing a demonstration version of the Linux Professional Edition v5.0
embedded operating system and development tools. The base DVEVM
kit includes a demonstration version. The demo version is a subset of
what MontaVista provides with the full Professional Edition. Tools such
as DevRocketTM 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 license, and no direct customer support,
warranty, or indemnification from MontaVista Software Inc. is provided.
You may choose to order the DaVinci Software Production Bundle
(DVSPB), which includes the production release of this demonstration
version of MontaVista Linux. This includes a full MontaVista license and
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.
❏ EVM #
Indicates commands to be typed into the U-Boot shell in a console
window connected to the EVM board's serial port. (Section 2.2)
❏ target $
Indicates commands to be typed into the Linux shell in the terminal
window connected to the EVM board's serial port.
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Software Overview
4.1.2
Software Components
The following figure shows the software components used for application
development in the DVEVM kit:
I/O
Application
xDM
API
Imaging
Codec
xDM
API
Video
Codec
VISA API
Framework
Components
Codec Engine
VID
IMG
Engine
xDM
API
Audio
Codec
xDM
API
Speech
Codec
SPH
AUD
DMAN3
User Space
Linux APIs
Kernel Space
CMEM
Driver
USB 2.0
Driver
EMAC
Driver
Video
Driver
Audio
Driver
GPIO
Driver
MMC/SD
Driver
SPI
Driver
UART
Driver
GP
Timer
Wtchdg
Timer
I2C
Driver
ARM System + MPEG4/H.264/JPEG Co-Processor (HMJCP)
In the previous figure, everything runs on the ARM. The application
handles I/O and application processing. To process video, image,
speech, and audio signals, it uses the VISA APIs provided by the Codec
Engine. The Codec Engine, in turn, uses xDM-based codecs. 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.
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Preparing to Install
4.2
Preparing to Install
On a host system, mount the DVEVM demonstration DVD and copy the
following files to a temporary location with at least 1.2 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_dm357_setuplinux_#_#_#_#.bin (disk 2)
xdctools_setuplinux_#_#_#.bin (disk 2)
Updates to these installers may be available on the TI DaVinci Software
Updates website listed in Section 1.3.
Ensure that an X graphical display is available, and point your DISPLAY
environment variable to this value. For example:
csh:
host $ setenv DISPLAY cnabc0314159d1:0
ksh or bash:
host $ export DISPLAY=cnabc0314159d1:0
DVEVM Software Setup
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Installing the Software
4.3
Installing the Software
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, Exporting a Shared File System for Target Access
Section 4.3.5, Testing the Shared File System
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 following Linux host operating system is 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 your host Linux workstation. This will allow you 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 folder to /opt/mv_pro_5.0 directory.
host $ ./mvl_5_0_demo_sys_setuplinux.bin
host $ ./mvl_5_0_0_demo_lsp_setuplinux_#_#_#_#.bin
3) After you execute these .bin files, make sure the following 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
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Installing the Software
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/montavista/ directory.
Note that unpacking these tar files will overwrite any existing files that
were previously installed.
Note: The LSP shipped with the DVSDK is a multi-platform LSP
and is not configured for a particular platform. As shipped, this LSP
cannot be used to build the demo or example applications. It must
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 includes Codec Engine components, sample data
files, xDAIS and xDM header files, and a contiguous memory allocator for
Linux (CMEM).
To install the DVSDK software using the Linux installer, follow these
steps:
1) Log in using a user account. The user account must have execute
permission for the dvsdk_dm357_setuplinux_#_#_#_#.bin and
xdctools_setuplinux_#_#_#.bin files.
2) Execute the DVSDK installer that you previously copied from the
DVSDK DVD. For example:
host $ cd /tmp
host $ ./dvsdk_dm357_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 $ cd /tmp
host $ ./xdctools_setuplinux_#_#_#.bin
When you are prompted, do not use the default installation location.
Instead, install the software in the directory created in Step 2. For
example, /home/<useracct>/dvsdk_#_#.
4) You can now delete the .bin files that you loaded into the temporary
directory.
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Installing the Software
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
The fourth disk 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 demos directory in the DVSDK directory that you set up
previously. For example:
host $ cd /home/<useracct>/dvsdk_#_#/dvsdk_demos_#_#_#
2) Mount disk 2 and copy the data.tar.gz file to your DVSDK directory.
For example:
host $ cp /mnt/cdrom/data.tar.gz .
3) Extract the A/V data files. For example:
host $ tar zxf data.tar.gz
4.3.4
Exporting a Shared File System for Target Access
Although the board’s NAND flash contains a file system, during
development it is more convenient to have the target board NFS mount
a file system on a host Linux workstation. Once you have tested the
application, you can store it on the board’s flash for a standalone
demonstration.
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 System) server. The exported file system will contain
the target file system and your executables.
To export the file system from your NFS server, perform the 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
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Installing the Software
3) Switch user to "root" on the host Linux workstation.
host $ su root
4) Perform the following commands to create 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 your 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 do not add a space between the * and the ( in
the above command.
6) Still as root, use the following 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 statusto 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
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4.3.5
Testing the Shared File System
To test your NFS setup, follow these steps:
1) Get the IP address of your host Linux workstations as follows. Look
for the IP address associated with the eth0 Ethernet port.
host $ /sbin/ifconfig
2) Open a terminal emulation window to connect to the EVM board via
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 console=ttyS0,115200n8 noinitrd rw
ip=dhcp root=/dev/nfs
nfsroot=$(nfshost):$(rootpath),nolock mem=232M
video=davincifb:vid0=0,2025K:vid1=0,
1350K:osd0=720x576x16,
2025K davinci_enc_mgr.ch0_output=COMPOSITE
davinci_enc_mgr.ch0_mode=ntsc
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.
The <directory to mount> must match what you specified in Step
5 of Section 4.3.4. For example, /home/<useracct>/workdir/filesys.
Hints: You may want to use the printenv command to print 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.
See Section A.4, Alternate Boot Methods for information about booting
with TFTP, NFS, or the board’s NAND flash.
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Installing the Software
4.3.6
Notes on Using Evaluation/Production Codecs
As part of the DM357 DVSDK installation, you received a number of
codecs:
❏
❏
❏
❏
❏
❏
❏
❏
Sequential JPEG Decoder
Sequential JPEG Encoder
MPEG4 Restricted Simple Profile Decoder
MPEG4 Simple Profile Encoder
H.264 Base Profile Decoder
H.264 Base Profile Encoder
G.711 Decoder (not a TI codec)
G.711 Encoder (not a TI codec)
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
versions, along with the appropriate license agreement.
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Setting Up the Build/Development Environment
4.4
Setting Up the Build/Development Environment
To set up the 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 PATH so that the MontaVista tool chain host tools and cross
compiler (arm_v5t_le-gcc) can be found. For example, 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_pro_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 performed the steps in Section 4.3.4, Exporting a
Shared File System for Target Access and Section 4.4, Setting 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;
}
4) host $ arm_v5t_le-gcc hello.c -o hello
Perform the following steps on the target board. 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!
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Building a New Linux Kernel
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 TFTP 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_COMPILE specifies 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_dm357_defconfig
5) To modify the kernel options, you will need to use a configuration
command such as "make menuconfig" 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) Compile the kernel using the following command:
host $ make ARCH=arm CROSS_COMPILE=arm_v5t_le- uImage
DVEVM Software Setup
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Rebuilding the DVEVM Software for the Target
7) 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
8) Use the following command to copy uImage to a place where U-Boot
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 root location. (Perform these commands as root or use a chown
uImagecommand 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 kernel reference book or online source for more
about Linux build configuration options.
4.6
Rebuilding the DVEVM Software for the Target
To place demo files in the /opt/dvevm directory, you need to rebuild the
DVEVM 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 dvsdk_#_#/Rules.make file.
■
Set PLATFORM to match your EVM board as follows:
PLATFORM=dm357
■
Set DVSDK_INSTALL_DIR to the top-level DVEVM installation
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/dm357
■
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
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Building with DSPLink
■
Make sure LINUXKERNEL_INSTALL_DIR is defined as follows:
LINUXKERNEL_INSTALL_DIR=/home/<useracct>/workdir/lsp/ti-davinci/linux-2.6.18_pro500
■
Modify the following environment variable as needed to match
the location of XDCtools on your Linux host. We recommend that
XDCtools be installed in the /home/<useracct>/dvsdk_#_#
directory, but you may have installed it elsewhere.
XDC_INSTALL_DIR=/home/<useracct>/dvsdk_#_#/xdctools_#_#
4) While in the same directory that contains Rules.make, use the
following commands to build the DVSDK demo applications and put
the resulting binaries on the target file system specified by
EXEC_DIR.
host $ make clean
host $ make
host $ make install
5) You can test 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
Building with DSPLink
The DSPLink build system now requires a GNU make version of 3.81 or
greater. Currently, versions of GNU make that qualify are versions 3.81,
3.81beta1, 3.90, and 3.92. Red Hat Linux 3 and 4 usually have GNU
make 3.80 pre-installed, which will not build DSPLink.
To work around this, either install and build a version of make 3.81+ or
use the make 3.81beta1 distributed with XDCtools. The 3.81beta1
version of make is located in XDC_TOOLS_DIR/gmake.
See the DSPLink documentation for further information about building.
DVEVM Software Setup
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Booting the New Linux Kernel
4.8
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 default, clean U-Boot environment. See Section 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 mem=232M console=ttyS0,115200n8
root=/dev/mtdblock0 rw rootfstype=yaffs2 ip=dhcp
video=davincifb:vid0=0,2025K:vid1=0,
1350K:osd0=720x576x16,
2025K davinci_enc_mgr.ch0_output=COMPOSITE
davinci_enc_mgr.ch0_mode=ntsc
EVM # saveenv
Note that the setenv bootargs command should be typed on a
single line.
3) Boot the board:
EVM # boot
This configuration boots a new Linux kernel via TFTP with a NAND flash
based file system. To boot using an NFS file system, see Section A.4.4.
For instructions on how to verify that your host workstation is running 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.
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Using the Digital Video Test Bench (DVTB)
4.9
Using the Digital Video Test Bench (DVTB)
The Digital Video Test 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>/dvsdk_#_#/dvtb_#_#_# directory, where #_#_# is the
DVTB version number.
To install DVTB to the target file system, perform the following 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=dm357
host $ make CONFIGPKG=dm357
3) Copy the binaries "dvtb-d" and "dvtb-r" to /opt/dvsdk/dm357 on the
device’s target filesystem and run it there. It must be in the same
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
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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–3
A.3 Setting Up a TFTP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–5
A.4 Alternate Boot Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–6
A.5 Updating/Restoring the Bootloaders. . . . . . . . . . . . . . . . . . . . . . . . . A–9
A.6 Restoring the NAND Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–12
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Changing the Video Input/Output Methods
A.1
Changing the Video Input/Output Methods
U-Boot reads the S3 mini-dip switch, position 10 setting on boot-up and
stores the results in the videostd environment variable. As long as your
U-Boot bootcmd sets the video output using the videostd variable (as the
example bootcmds in Section A.4, Alternate Boot Methods do), you can
switch between NTSC and PAL by simply changing the S3 switch setting
as shown in Section 2.1, Setting Up the Hardware.
To automatically update the bootargs based on the S3 switch setting,
please use the following options:
EVM # setenv bootargs 'mem=232M console=ttyS0,115200n8
root=/dev/mtdblock0 rw rootfstype=yaffs2 ip=dhcp
video=davincifb:vid0=0,2025K:vid1=0,
1350K:osd0=720x576x16,
2025K davinci_enc_mgr.ch0_output=COMPOSITE
EVM # setenv bootcmd 'setenv setboot setenv bootargs
\$(bootargs) davinci_enc_mngr.ch0_mode=\$(videostd);run
setboot;nboot 0x80700000 0 0x400000;bootm'
If you do not want to use the videostd variable in your bootcmd, use the
following options within your bootargs setting. The difference between
the NTSC and PAL settings is shown in bold.
NTSC
video=davincifb:vid0=0,2025K:vid1=0,
1350K:osd0=720x576x16,
2025K davinci_enc_mgr.ch0_output=COMPOSITE
davinci_enc_mgr.ch0_mode=ntsc
PAL
video=davincifb:vid0=0,2025K:vid1=0,
1350K:osd0=720x576x16,
2025K davinci_enc_mgr.ch0_output=COMPOSITE
davinci_enc_mgr.ch0_mode=pal
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Putting Demo Applications in the Third-Party Menu
A.2
Putting Demo Applications in the Third-Party Menu
You can add your own demos to the Third-Party Menu by following the
steps in this section. Only four demos can be shown at once in the user-
interface. If you add more than four demos, the first four in alphabetical
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 is a text file. The first 40 characters of the file
should briefly describe the demo. The demo interface 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 executable 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 shell script, your demo executable will
have some other name. You may also need to include data files
or other files used by the executable.
Note: The demo application must use relative paths to access any
files it needs at runtime. This because the archive is extracted 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 are
installed in the same directory.
The three required files must be in the top-level directory of the
archive. Other files may be in subdirectories, so long as the demo
Additional Procedures
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Putting Demo Applications in the Third-Party Menu
uses relative references to access them. For example, the following
directory structure might be used in the archive:
|-- app.sh
|-- data
| |-- datafile1
| `-- datafile2
|-- logo.jpg
`-- readme.txt
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" subdirectory of the target
installation directory. This is where the DVEVM software was
installed on the target file system. The default target installation
directory is /opt/dvevm, so the default location for demo archives is
/opt/dvevm/thirdpartydemos. Do not extract the contents of the
archive in this location. Extraction is performed behind-the-scenes
each time the demo is run.
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Setting Up a TFTP Server
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 download a TFTP server for your Linux host
from many locations on the Internet. Search for "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.
Additional Procedures
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Alternate Boot Methods
A.4
Alternate Boot Methods
The default configuration for the EVM is to boot from flash with the file
system on the board’s NAND flash. The following are alternate ways you
may want to boot the board:
❏
❏
❏
TFTP boot with NAND flash 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)
The subsections that follow show the environment variable settings used
to enable each boot method.
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).
Set the environment variables indicated in the following subsections
for the boot mode you want to use. (Note that the setenv bootargs
command should be typed on a single line.)
2) If you want to use these settings as the default in the future, save the
environment:
EVM # saveenv
3) Boot the board using the settings you have made:
EVM # boot
A.4.1 Booting from Flash Using Board’s NAND Flash File System
This is the default, out-of-the-box boot configuration.
To boot in this mode, set the following parameters after you abort the
automatic boot sequence:
EVM # setenv bootcmd 'nboot 0x80700000 0 0x400000;bootm'
EVM # setenv bootargs console=ttyS0,115200n8 ip=dhcp
root=/dev/mtdblock0 rw rootfstype=yaffs2 mem=232M
video=davincifb:vid0=0,2025K:vid1=0,
1350K:osd0=720x576x16,
2025K davinci_enc_mgr.ch0_output=COMPOSITE
davinci_enc_mgr.ch0_mode=ntsc
EVM # boot
When you boot, look for the following line that confirms the boot mode:
## Booting image at 80700000 ...
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Alternate Boot Methods
A.4.2 Booting via TFTP Using Board’s NAND Flash File System
To boot in this mode, set the following parameters after you abort the
automatic boot sequence:
EVM # setenv bootcmd 'dhcp;bootm'
EVM # setenv bootargs console=ttyS0,115200n8 ip=dhcp
root=/dev/mtdblock0 rw rootfstype=yaffs2 mem=232M
video=davincifb:vid0=0,2025K:vid1=0,
1350K:osd0=720x576x16,
2025K davinci_enc_mgr.ch0_output=COMPOSITE
davinci_enc_mgr.ch0_mode=ntsc
EVM # setenv serverip <tftp server ip address>
EVM # setenv bootfile <kernel image>
EVM # boot
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 ...
A.4.3 Booting from Flash Using NFS File System
To boot in this mode, set the following parameters after you abort the
automatic boot sequence:
EVM # setenv bootcmd 'nboot 0x80700000 0 0x400000;bootm'
EVM # setenv nfshost <ip addr of nfs host>
EVM # setenv rootpath <directory to mount*>
EVM # setenv bootargs console=ttyS0,115200n8 noinitrd rw
ip=dhcp root=/dev/nfs nfsroot=$(nfshost):$(rootpath),
nolock mem=232M
video=davincifb:vid0=0,2025K:vid1=0,
1350K:osd0=720x576x16,
2025K davinci_enc_mgr.ch0_output=COMPOSITE
davinci_enc_mgr.ch0_mode=ntsc
EVM # boot
*For example, <directory to mount> might be
/home/<useracct>/workdir/filesys.
Additional Procedures
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Alternate Boot Methods
When you boot, look for the following lines that confirm the boot mode:
## Booting image at 80700000 ...
...
Starting kernel ...
...
VFS: Mounted root (nfs filesystem).
A.4.4 Booting via TFTP Using NFS File System
To boot in this mode, set the following parameters after you abort the
automatic boot sequence:
EVM # setenv bootcmd 'dhcp;bootm'
EVM # setenv serverip <ip addr of tftp server>
EVM # setenv bootfile <name of kernel image>
EVM # setenv rootpath <root directory to mount>
EVM # setenv nfshost <ip addr of nfs host>
EVM # setenv bootargs console=ttyS0,115200n8 noinitrd rw
ip=dhcp root=/dev/nfs nfsroot=$(nfshost):$(rootpath),nolock
mem=232M video=davincifb:vid0=0,2025K:vid1=0,
1350K:osd0=720x576x16,
2025K davinci_enc_mgr.ch0_output=COMPOSITE
davinci_enc_mgr.ch0_mode=ntsc
EVM # boot
The <root directory to mount> must match the filesystem 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).
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Updating/Restoring the Bootloaders
A.5
Updating/Restoring the Bootloaders
The DM357 EVM board contains 2 GB of NAND flash memory. During
the boot process 64 MB of NAND is used. After booting, 2 GB are used
for the file system.
When the EVM board is reset, the ROM bootloader (RBL) executes,
initializing the board and then loading a small program called UBL (User
Bootloader) from NAND flash memory into internal memory for
execution. UBL in turn loads the U-Boot bootloader program from NAND
flash memory. The U-Boot bootloader is responsible for loading and
starting the Linux kernel.
Therefore, there are two bootloader images that need to be stored in the
EVM's NAND flash memory: UBL and U-Boot. This section describes
how to flash UBL and U-Boot in case these images are corrupted or need
to be updated.
If the U-Boot image is intact in the EVM flash memory, you can use it to
update itself. If working U-Boot (or UBL) images are not present in flash,
you will need to restore these images using Code Composer Studio
(CCStudio) and an emulator. The subsections that follow explain both of
these procedures.
You can find UBL, U-Boot, and the NAND programmer pre-built binaries
in your DVSDK installation. The location for these is typically the
/home/<useracct>/dvsdk_#_#/PSP_#_#_#_#/bin/dm357
directory.
Alternatively, the source code for the Bootloader components can be
found in the /home/<useracct>/dvsdk_#_#/PSP_#_#_#_#/board_utilities
directory.
For further information about upgrading and flashing, see the TI DaVinci
A.5.1 Updating U-Boot Using U-Boot
If the U-Boot image is intact in the EVM flash memory, you can use it to
update itself by following these steps:
1) After aborting the automatic boot sequence, assign an IP address to
the EVM board using one of these methods:
■
If you are on a standalone network or using a network cross
cable to your workstation, you can assign a static IP address to
the EVM as follows:
EVM # setenv ipaddr <static IP address>
Additional Procedures
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Updating/Restoring the Bootloaders
■
To assign a dynamic address, use the following:
EVM # dhcp
EVM # setenv ipaddr <IP address returned by dhcp>
2) Set the TFTP server IP address:
EVM # setenv serverip <TFTP server IP address>
3) Save these settings to the flash memory:
EVM # saveenv
4) Load U-Boot. To load U-Boot, the U-Boot image must be copied to
the TFTP directory (usually /tftpboot), and the tftp command must
specify both the image name and the destination address. In this
case, the destination is in DDR memory starting at address
0x80700000, chosen arbitrarily in the DDR space.
EVM # tftp 0x80700000 <u-boot file name>
Total
Size
Sector
Size
U-Boot Load
Address
NAND Device
Boot device U6
(SAMSUNG K9F1208R0B-JIB0)
512 MB
2 GB
64 MB x 8
0x18000
Storage Device U67
(MICRON MT29F16G08FAAWC:A)
not accessible from
U-Boot
5) Erase the U-Boot location at the "U-Boot Load Address" shown in the
previous table for your NAND device with a size that is larger than the
"Bytes transferred" value from Step 4.
EVM # nand erase <U-Boot Load Address> 0x20000
6) Flash the new U-Boot from 0x80700000 to the U-Boot Load Address
shown in the previous table for the corresponding NAND device.
EVM # nand write 80700000 <U-Boot Load Address> 20000
7) Power cycle the board or type "reset" to reboot. Verify that the
recently flashed U-Boot is working by inspecting the build date on the
serial terminal console output.
A-10
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Updating/Restoring the Bootloaders
A.5.2 Updating UBL and U-Boot Bootloaders Using an Emulator and CCStudio
If working U-Boot (or UBL) images are not present in flash, you will need
to restore these images using Code Composer Studio (CCStudio) and an
emulator. Follow these steps:
1) Find the NAND programmer utilities. The NAND Programmer binary
(NANDWriter.out) is in
/home/<useracct>/dvsdk_#_##/PSP_#_#_#_#/bin/dm357.
Alternatively, the source for the NAND programmer utilities can be
extracted
from
your
DVSDK
installation
at
/home/<useracct>/dvsdk_#_##/PSP_#_#_#_#/board_utilities.
Extract them onto a PC workstation that has CCStudio 3.3 (or higher)
and an XDS560 or XDS510 emulator installed.
2) Configure CCStudio to connect to the DM357 EVM board using
CCStudio Setup and the DM357 GEL files. The .ccs and .gel files are
not included in the PSP package. You can download them from
3) Connect an emulator to the EVM board's JTAG connector and power
up the EVM board.
4) Open CCStudio and connect to the device (Alt+C).
5) Load the program NANDWriter.out and run it (F5).
6) Enter the full UBL path and file name for ubl_DM357_nand.bin in the
dialog box.
7) Enter the full U-Boot path and file name for
u-boot-1.2.0-dm357-nand.bin in the dialog box.
8) At the next two prompts, enter 0x82080000.
9) Wait until NAND programming is complete.
10) Cycle power on the EVM board and press any key on the EVM's
monitor window to get the U-Boot prompt.
Additional Procedures
A-11
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Restoring the NAND Flash
A.6
Restoring the NAND Flash
You can restore the contents of the DVSDK NAND flash memory on the
EVM board via NFS (Section A.6.2) or via RAM Disk and an SD card
(Section A.6.3). These contents include the Linux kernel and filesystem
and the demo application software. However, you must first update the
kernel on the NAND flash as described in Section A.6.1.
The DVSDK NAND image is included on the DVSDK (disk #2) restore
"dm357_flash_image_#_#_#_#.tar", where #_#_#_# is the version.
A.6.1 Updating the Kernel
The Linux kernel (uImage) can be loaded to the NAND flash via TFTP.
This step is required before you restore the NAND flash, whether you
plan to do that via NFS (Section A.6.2) or via RAM Disk and an SD card
(Section A.6.3).
To load the kernel, the file name of the kernel image that is in the server's
tftp directory (usually /tftpboot) and the destination address need to be
specified. Execute the following commands to download the kernel
image and write to the NAND partition.
1) Copy the uImage-dm357 file to /tftpboot/uImage to rename the file as
required by the following steps.
2) Assign an IP address to the EVM board using one of these methods:
■
If you are on a standalone network or using a network cross
cable to your workstation, you can assign a static IP address to
the EVM as follows:
EVM # setenv ipaddr <static IP address>
EVM # setenv serverip <tftp server IP address>
EVM # tftp 0x80700000 uImage
■
To assign a dynamic address, use the following commands:
EVM # setenv bootfile uImage
EVM # setenv serverip <tftp server IP address>
EVM # dhcp
3) Download the kernel image and write to the NAND flash as follows:
EVM # nand erase 0x400000 0x200000
EVM # nand write 0x80700000 0x400000 0x200000
A-12
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Restoring the NAND Flash
A.6.2 Restoring the NAND Flash Using NFS
Once you have loaded the kernel binary to the corresponding NAND
partition as described in Section A.6.1, you can use NFS to populate the
YAFFS2 image (dm357_flash_image_#_#_#_#.tar) to the NAND
partition. The YAFFS2 image should reside on the NFS Server root
directory. Follow these steps:
1) Copy the dm357_flash_image_#_#_#_#.tar file from the DVSDK disk
to the NFS mounted root directory. For example,
/home/<useracct>/workdir/filesys.
2) Set the bootcmd environment variable to boot to kernel and mount to
NFS. (Alternatively use the 'dhcp' command for the EVM IP
Address.)
EVM # setenv bootcmd 'nboot 0x80700000 0 0x400000; bootm'
EVM # setenv bootargs console=ttyS0,115200n8 noinitrd
ip=dhcp root=/dev/nfs rw nfsroot=<nfs_host_ip>:<nfs_root_path> mem=232M
video=davincifb:vid0=0,2025K:vid1=0,1350K:osd0=720x576x16,
2025K davinci_enc_mgr.ch0_output=COMPOSITE
davinci_enc_mgr.ch0_mode=ntsc
Note: These variables need not be saved, because NFS is just a
temporary filesystem.
3) Execute the 'boot' command to boot the Linux kernel.
4) Login to the EVM as root and execute the following set of U-Boot
commands to mount the NAND partition and populate the YAFFS2
image:
EVM # mkdir /mnt/nand
EVM # flash_eraseall /dev/mtd0
EVM # mount -t yaffs2 /dev/mtdblock0 /mnt/nand/
EVM # cd /mnt/nand
EVM # tar xf /dm357_flash_image_#_#_#_#.tar
EVM # cd
EVM # umount /mnt/nand
EVM # reboot
5) When the EVM comes up after rebooting from the previous steps,
press Esc to get back to U-Boot prompt. You can now restore the out-
of-the-box U-Boot environment variables as described in Section
A.4.1.
Additional Procedures
A-13
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Restoring the NAND Flash
A.6.3 Restoring the NAND Flash Using RAM Disk and a 2 GB SD Card
This procedure assumes the TFTP setup in Section A.3 has been
performed.
Once you have loaded the kernel binary to the corresponding NAND
partition as described in Section A.6.1, you can load the Ramdisk image
(ramdisk.gz) to the DDR memory via TFTP. The YAFFS2 image resides
on the 2 GB SD card. An MMC/SD card reader should be used to copy
the YAFFS2 image on the 2 GB SD card. Follow these steps:
1) Find the RAM disk image at
/home/<useracct>/dvsdk_#_#/PSP_#_#/bin and copy it to the host’s
/tftpboot directory.
2) After aborting the boot sequence, download the RAM disk image to
the RAM as follows:
EVM # tftp 0x82000000 ramdisk.gz
3) Set the following environment variables to boot to Kernel and mount
to the RAM disk.
EVM # setenv bootcmd 'nboot 0x80700000 0 0x400000; bootm'
EVM # setenv bootargs mem=232M console=ttyS0,115200n8
root=/dev/ram0 rw initrd=0x82000000,4M ip=off
video=davincifb:vid0=0,2025K:vid1=0,
1350K:osd0=720x576x16,
2025K davinci_enc_mgr.ch0_output=COMPOSITE
davinci_enc_mgr.ch0_mode=ntsc
Note: These variables need not be saved to the NAND flash, as the
RAM disk is just a temporary filesystem.
4) Plug the 2GB SD Card into the MMC/SD slot on the DM357 EVM.
Note: If the card is not plugged in when the kernel boots the kernel
will lock-up when the card is hot-plugged later.
5) Execute the following command to boot to Kernel:
EVM # boot
6) Login to the EVM using the root username. Note that "root" does not
have a password.
A-14
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Restoring the NAND Flash
7) Execute the following commands to mount the MMC/SD and NAND
partitions and populate the YAFFS2 image:
EVM # mkdir /mnt/mmc
EVM # mkdir /mnt/nand
EVM # mount -t vfat /dev/mmcblk0 /mnt/mmc/
EVM # flash_eraseall /dev/mtd0
EVM # mount -t yaffs2 /dev/mtdblock0 /mnt/nand/
EVM # cd /mnt/nand
EVM # tar xf /mnt/mmc/dm357_flash_image_#_#_#_#.tar
EVM # cd
EVM # umount /mnt/nand
EVM # reboot
The first mount command assumes you have a VFAT partition. The
tar command will take about a minute to run.
The filename of the dm357_flash_image_#_#_#_#.tar image will be
in DOS 8.3 format if you are using a vfat filesystem. That is,
dm357_fl.tar.
8) When the EVM comes up after rebooting from the previous steps,
press Esc to get back to U-Boot prompt. You can now restore the out-
of-the-box U-Boot environment variables as described in Section
A.4.1.
Additional Procedures
A-15
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A-16
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Index
DaVinci technology
community 1-4
Decode demo 3-5, 3-9
command line 3-10
demos 3-2
A
application 4-4
arrow buttons 3-5
audio 2-3
command line 3-10
Digital Video Test Bench (DVTB)
building 4-17
documentation 4-17
disks 1-2
file contents 4-2
DISPLAY environment variable 4-5
DSPLink 4-15
B
battery 1-3, 3-4
bin files 4-6
block diagram 1-3
boot configurations A-6
flash with NAND flash A-6
flash with NFS A-7
NFS 4-10
DVD button 3-4
DVDs 4-2
DVDs, mounting 4-5
DVEVM
installing software 4-7
DVEVM software
rebuilding 4-14
standard 3-2
TFTP with NAND flash A-7
TFTP with NFS A-8
boot sequence A-6
bootloader A-9
DVSPB 4-3
build environment 4-12
E
C
electrostatic precautions 2-2
Encode + Decode demo 3-5, 3-7
command line 3-10
Encode demo 3-5, 3-7
command line 3-10
environment variables
XDC_INSTALL_DIR 4-15
Ethernet port (P2) 2-5
EVM # prompt 2-6, 4-3
examples 3-2
cables
connecting 2-2
CDs 4-2
clock battery 1-3
Code Search button 3-4
Codec Engine 3-6, 3-7, 4-4
COM port 2-6
command line demos 3-10
command prompts 4-3
composite video-in (J12) 2-4
composite video-out (J8) 2-4
console window 2-6
UART port 2-5
exit demo 3-6
exports file 4-9
contents of kit 1-2
F
file extensions 3-8
file system 4-8
files
D
Decode demo 3-9
data files 4-8
Index--1
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Index
Encode demo 3-7
boot configuration A-6, A-7
restoring A-12
on disks 4-2
flash memory
boot configuration A-6, A-7
NAND programmer utilities A-11
NFS server 4-8
boot configuration A-7, A-8
testing 4-10
NTSC video 2-3
G
G.711 speech 3-8, 3-9
GNU make, version 4-15
O
OSD show and hide 3-6
OSD toggle 3-6
H
H.264 video 3-7, 3-8, 3-9
host $ prompt 4-3
P
PAL video 2-3
PATH environment variable 4-12
Pause button 3-6
peripherals 1-3, 2-2
Play button 3-5
ports 2-5
Power button 3-6
power cable 2-5
power jack 2-5
I
Info/Select button 3-6
installing
DVEVM software 4-7
hardware 2-2
Linux software 4-6
IR remote 1-2, 3-4
resetting code 3-4
power supply 1-2
power switch 2-5
prompts 4-3
K
kit contents 1-2
Q
quit demo 3-6
L
Linux 4-4
R
installing 4-6
kernel 4-13
versions supported 4-6
Linux Support Package 4-13
RCA connectors 2-4
rebuilding
DVEVM software 4-14
Linux kernel 4-13
Record button 3-5
Red Hat Enterprise Linux 4-6
remote control 1-2, 3-4
resetting code 3-4
RS-232 2-5
M
make utility, version 4-15
MontaVista Linux
demo version 4-3
full version 4-3
Rules.make file 4-14
running applications 3-5
MPEG4 video 3-8, 3-9
multimedia peripherals 1-3
S
S3 mini-dip switch 2-3
serial cable 2-6
software 4-2
N
NAND flash A-9
Index--2
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Index
components 1-2, 4-4
installing 4-6
speaker 2-3
Spectrum Digital website 1-3
standalone demos 3-2
static precautions 2-2
Stereo Line In (P3) 2-3
Stereo Line Out (P5) 2-3
Stop button 3-6
U
UART port (P6) 2-5
UBL A-9
U-Boot A-9
U-Boot utility 4-13
uImage boot file 4-16
SuSe Workstation 4-6
V
video-in (J12) 2-4
video-out (J8) 2-4
VISA APIs 4-4
T
target $ prompt 4-3
terminal session 2-6
test program 4-12
TFTP
X
boot configuration A-7, A-8
server A-5
XDC_INSTALL_DIR environment variable 4-15
transfer files to board 4-16
Third-Party Menu A-3
transparency of OSD 3-6
Y
YAFFS2 image A-13
Index--3
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Spectrum Digital, Inc.
511458-0001B
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