VIPER Technical Manual

Getting started

 

 

Using the audio features

There are four audio interfaces supported on the VIPER: amp out, line out, line in and VL microphone. The line in, line out and amp interfaces support stereo signals and the

microphone provides a mono input. The amplified output is suitable for driving an 8Ω load with a maximum power output of 250mW per channel. Connections are routed to

PL6 - see the sections Audio39H(page 56247H) and PL640H– Audio connector (page 91248H) for further details.

Using the USB host

The standard USB connector is a 4-way socket, which provides power and data VL signals to the USB peripheral. The 10-way header PL7 has been designed to be

compatible with PC expansion brackets that support two USB sockets. See the

sections USB249Hhost interface (page 60250H) and PL7251H– USB connector (page 91252H) for further details.

Using the USB client

The VIPER board can be used as USB client and connected to a PC via a USB cable.

The USB cable should be plugged into PL17 header. See the sections USB253Hclient

interface (page 61254H) and PL17255H– USB client connector (page 95256H) for further details.

Using the Ethernet interface

The SMSC LAN91C111 10/100BaseTX Ethernet controller is configured by the RedBoot bootloader for embedded Linux or VxWorks, and by Eboot for Windows CE.

Connection is made via connector PL1. A second connector PL2 provides activity and

link status outputs for control LEDs. See the sections 10/100BaseTX257HEthernet (page

62258H), PL1259H– 10/100BaseTX Ethernet connector (page 87260H) and PL2261H– Ethernet status LEDs connector (page 87262H) for further details.

The Ethernet port may be connected to an ETHER-BREAKOUT module to provide a

standard RJ45 port connector, see section Ethernet263Hbreakout board, page 622 4Hfor further details.

© 2007 Eurotech Ltd Issue E

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