VME BUS Master/Slave Back End with FEWE support0 pages
*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
SDRAM |
TLB |
TLB |
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.
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