*GEB Enterprise S.r.l.

yfet&X General Electronics Business

Via Rocca di Papa, 21 -00179 Roma, Italy

Email: info(a)qeb-enterprise.com - Web: www.aeb-enterprise.com

VME-RDK

System On Programmable Chip

VME BUS Master/Slave Back End

Overview

The GEB-VME board has the target to make available at low cost the resources to build a fast prototype of a

VME master/slave/controller subsystems. The modularity of the resources, hardware in the board, firmware in

the NIOS code and IP blocks, written in VHDL language, allow composing with many types of applications

with a low effort.

Communication

•

Video

Surveillance

Medical

Imaging

3

Broadcast

Systems

Custom Front

End Board

SGDMA

NIOS

2x

USART

VJTAG

IP

SMILE by

FEWE

6

GEB VME Board

VME

MASTER

VME

SLAVE

SCON

I

The Two pieces solution

With the standard VME size of 233x160mm the application board will be built using two pieces solution

composed by semi-boards. The first one is the GEB-VME, wide about 233x60mm shown on the right side of the

figures who carries the Fpga that host VME IP

and its related logic, the VME

Drivers/Receivers, the SdRam and some

ancillary logic, including a switching power

supply, able to generate onboard 3.3V when it

isn't available on the PO connector. The GEB-

VME also hosts an expansion connector (J4)

and space for four smalls brackets needed to

vigorously join into it to the second piece of

the "Front End" board. An example of Front

End Board is shown on the left side of the

figure and has a size of about 233x100mm.

The Fpga I/O signals,( about 44), are carried

out from the GEB-VME P4 connector, a 100

way 1.27mm connector. The front-end board

must be designed by customer to meet their

own application will host the interface logic,

controllers of simples level translator needed to

establish the correct electrical and logical

protocols required from external peripherals.

The current VME IP and NIOS firmware supports A32D32 master/slave cycles, interrupt handler, interrupter and

SysCon. The related firmware (Monitor), running on NIOSII, allows the user to start all kind of buses cycles and

some macro commands, such as memory test, using RS232 or USB data link.