Analog Devices SHARC 82-000197-01 - Manual (Page 16)

USB 2.0 Interface
1-2 SHARC USB EZ-Extender Manual
4. Set the jumper on the USB EZ-Extender board. Use the block dia-
gram in Figure 2-1 on page 2-1 in conjunction with “Processor
Select Jumper (JP1)” on page 2-2 .
5. Set the switches on the EZ-KIT Lite board. If not already, familiar-
ize yourself with the documentation and schematics of the EZ-KIT
Lite (see
“Related Documents” ). Compare the expansion interface
signals of the USB EZ-Extender board with the signals of the
EZ-KIT Lite board to ensure there is no contention. For example,
it may be necessary to disable other devices connected to the expan-
sion interface of the processor and disable the push buttons on the
EZ-KIT Lite.
6. Install the USB EZ-Extender on the EZ-KIT Lite via the
three-connector expansion interface.
USB Software Documentation
For information on the USB software (host-side and device-side), refer to
the
USB Software Readme.txt file located in the
…\212xx\Examples\USB EZ-EXTENDER or
…\213xx\Examples\USB EZ-EXTENDER subdirectory of the VisualDSP++
installation directory.
USB 2.0 Interface
The USB EZ-Extender allows you to connect a USB 2.0 chip to a SHARC
processor without any other programmable logic. PLX Technology’s
NetChip 2272 device ties directly to the parallel port or asynchronous
memory bank of the SHARC processor. You can read from and write to
the USB 2.0 controller by directly addressing the named memory bank.