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VIPER Technical Manual Getting started
© 2007 Eurotech Ltd Issue E 17
Using the PC/104 expansion bus
PC/104 modules can be used with the VIPER to add extra functionality to the system.
This interface supports 8/16 bit ISA bus style peripherals.
Eurotech Ltd has a wide range of PC/104 modules, which are compatible with the
VIPER. These include modules for digital I/O, analogue I/O, motion control, CAN bus,
serial interfaces, etc. Please contact the Eurotech Ltd sales team if a particular
interface you require does not appear to be available as these modules are in
continuous development. Contact details are provided in
41H265HAppendix A – Contacting
Eurotech
, page 266H101.
In order to use a PC/104 board with the VIPER it should be plugged into PL11 for 8-bit
cards and PL11/PL12 for 8/16-bit cards. See the sections
267HPC/104 interface (page 268H67)
and
42HPL11 & PL12 – PC/104 connectors (page 269H94) for further details.
The ISA interface on the VIPER does not support DMA or shared interrupts. See the
section
43HInterrupt assignments, page 270H30, for details about PC/104 interrupt use.
The VIPER provides +5V to a PC/104 add-on board via the PL11 and PL12
connectors. If a PC/104 add-on board requires a +12V supply, then +12V must be
supplied to the VIPER power connector PL16 pin 4. If –12V or –5V are required, these
must be supplied directly to the PC/104 add-on board.
The VIPER is available with non-stack through connectors by special order. Contact
Eurotech Ltd (see
44H45H271HAppendix A – Contacting Eurotech, page 272H101, for more details.
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