Texas Instruments TMS320DM357 DVEVM v2.05 manual Running the Network Demo

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Running the Network Demo

3.5Running 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 which the EVM board is connected. Enter a URL of the form "http://ip- 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 (http://www.acme.com/software/thttpd/). It is designed to be small, fast, 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.

Running the Demonstration Software

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Contents TMS320DM357 Dvevm Getting Started Guide Important Notice Evaluation BOARD/KIT Important Notice FCC Warning About This Guide PrefaceTrademarks Contents Contents Dvevm Overview What’s in this Kit? DM357 What’s on the Board?What’s Next? EVM Hardware Setup Setting Up the Hardware Audio In P3 Audio Out P5 Composite Video Out J8 Uart P6 Connecting to a Console Window Running the Demonstration Software Starting the Standalone Demos Default Boot ConfigurationStarting the Standalone Demos Starting the Standalone Demos Running the Standalone Demos Shutting Down the Demos About the Encode Demo About the Encode + Decode DemoIR Remote Buttons for Encode Demo IR Remote Buttons for Decode Demo About the Decode DemoRunning the Demos from the Command Line Running the Network Demo Page Dvevm Software Setup Software Overview Command Prompts in This Guide Software Components ApplicationPreparing to Install Installing the Target Linux Software Installing the SoftwareInstalling the Dvsdk Software Exporting a Shared File System for Target Access Installing the A/V Demo FilesSwitch user to root on the host Linux workstation EVM # setenv nfshost ip address of nfs host Testing the Shared File SystemInstalling the Software Writing a Simple Program and Running it on the EVM Setting Up the Build/Development EnvironmentBuilding a New Linux Kernel Compile the kernel using the following commandRebuilding the Dvevm Software for the Target Building with DSPLink EVM # setenv serverip tftp server ip address Booting the New Linux KernelUsing the Digital Video Test Bench Dvtb Page Additional Procedures Ntsc Changing the Video Input/Output MethodsPutting Demo Applications in the Third-Party Menu File filename.tar.gz You should see the following output Setting Up a Tftp ServerBooting from Flash Using Board’s Nand Flash File System Alternate Boot MethodsBooting from Flash Using NFS File System Booting via Tftp Using Board’s Nand Flash File SystemBooting via Tftp Using NFS File System Updating U-Boot Using U-Boot Updating/Restoring the BootloadersTo assign a dynamic address, use the following Updating/Restoring the Bootloaders Updating the Kernel Restoring the Nand FlashRestoring the Nand Flash Using NFS Restoring the Nand Flash Using RAM Disk and a 2 GB SD Card EVM # tar xf /mnt/mmc/dm357flashimage####.tar EVM # cd Page NFS IndexIndex--2 Index--3 Spectrum Digital, Inc 511458-0001B