GR-VPX-GR740

Based on our GR740 Quad-Core 32-bit LEON4FT SPARC V8 processor, the GR-VPX-GR740 board comes in a 6U VPX format (233.5 mm x 160 mm) and is intended for use in OpenVPX chassis occupying a 1” slot (including mezzanine board). The board can also be used in stand-alone operation with a single 12V supply, in this case with limited VPX functionality.

The board is equipped with on-board memories for boot and application storage, and an SODIMM for SDRAM. The front panel includes basic communication interfaces and LED indicators, whereas the rear connectors  are intended for OpenVPX/SpaceVPX backplane connections.

The current GR-VPX-GR740 product includes a simple mezzanine board GR-VPX-SPW-MEZZ which provides two SpaceWire interfaces on the front panel. This mezzanine board does not include all the mezzanine interfaces provided by the main board. The mezzanine interfaces supported by the main board are listed to provide information for the users who can build their own mezzanine boards. Currently, this board product is not provided with any other mezzanine board other than the GR-VPX-SPW-MEZZ.

The main board supports the following mezzanine interfaces (which can be utilized by the users to build their own mezzanine cards): A HPC-400 FMC connector for FPGA or other mezzanine boards provides interfaces with PCI, 2xSpaceWire and GPIO of the processor. It also connects to the Data Plane of the backplane via two Fat Pipes (8 differential pairs each) and four Thin Pipes (4 differential pairs each). Further signals routed between the mezzanine connector and the backplane include two Thin Pipes to the Control Plane and other system control signals. Note: Among these mezzanine interfaces, the GR-VPX-SPW-MEZZ mezzanine board make use of the two SpaceWire interfaces to provide two Front panel SpaceWire interfaces.

The board is developed to be used as a Switch Module in the OpenVPX architecture based on ANSI/VITA 65.0-2017. It can also be ordered as a factory-configured variant with the backplane interface designed as a Switch and Controller Module providing some of the features of the SpaceVPX architecture specified in the Draft ANSI/VITA 78.00-2015.  

Therefore, the board offers two factory-configured variants, the difference being related to the pinout of the P1 connector for the Control Plane:

• Part number 200274 - GR-VPX-GR740-OX: OpenVPX, as per Switch Slot Profile SLT6- SWH-16U20F-10.4.2, compatible to backplane BKP6-CEN05-11.2.5.
• Part number 200300 - GR-VPX-GR740-SX: SpaceVPX, as per Switch and Controller Slot Profile SLT6-SWC- 16T12F12U-10.4.1, compatible to  backplane BKP6-CEN9-11.2.5 (not validated in a backplane).

Development Board:‍

• GR-VPX-GR740 Development Board

Cable Set:

• USB-A to Micro B cable