Texas Instruments TMS320DM6467 DVEVM, Руководство по началу работы, Страница: 22 / 72

Default Boot Configuration
3-2
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.3.1. The
following are alternate ways you may want to boot the board:
❏
TFTP boot with hard drive file system (Section A.3.2)
❏
Flash boot with NFS file system (Section A.3.3)
❏
TFTP boot with NFS file system (Section A.3.4)
To abort the standard boot, press any key in the console window (see
Section 2.2). Also see Section A.3,
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 connected to the EVM board's component
output connectors, using a 720p (HD) video source connected to the
component input connectors. 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 placing the dvevmdemo file
in the examples/dm6467 directory of the dvsdk directory
/etc/rc.d/init.d (the central repository for startup scripts) of the target
file system. This file is symbolically linked to /etc/rc.d/rc3.d/S88demo.
When the board boots up and enters runlevel 3, this file is executed
to start the demo web server and the demo interface.
❏
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