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GR-VPX-GR740-BOARD Development Board 2020 User's Manual The most important thing we build is trust GR-VPX-GR740-BOARD Development Board User's Manual GR-VPX-GR740-BOARD-UM, 2020, Version 1.4 www.cobham.com/gaisler...
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GR-VPX-GR740-BOARD Intentionally Blank GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
Setting Up and Using the Board...................33 Switches and Bootstrap Signals.................33 5.1.1 SP3T Switch description and configuration properties........34 5.1.2 GR740 Bootstrap Signals..................35 5.1.3 Other configurable switches default settings.............37 Jumper configurations..................37 5.2.1 Default Setting of Jumpers – GR-VPX-GR740..........38 Interfaces and Configuration..................39 GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
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GR-VPX-GR740-BOARD List of Connectors – GR-VPX-GR740..............40 List of Connectors – GR-VPX-SPW-MEZZ.............40 List of Oscillators, Switches and LED's - GR-VPX-GR740......47 Change Record.......................52 GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
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Table 9: List of Connectors – GR-VPX-GR740.................40 Table 10: List of Connectors – GR-VPX-SPW-MEZZ..............40 Table 11: J1 POWER – External Power Connector................41 Table 12: J2 Dual MIL-STD-1553 interface connections..............41 Table 13: J3 RJ45-ETHERNET Connector..................41 Table 14: J4 PPS Input........................41 GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
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Table 20: J10 SPW-HDR interface connections.................46 Table 21: J11 FPGA– JTAG Connector.....................46 Table 22: List and definition of Oscillators and Crystals..............47 Table 23: List and definition of PCB mounted LED's................47 Table 24: List and definition of Switches...................48 GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
Scope of the Document This document provides a User's Manual and Interface document for the “GR-VPX- GR740-BOARD” Development and Demonstration board. The work has been performed by Cobham Gaisler AB, Göteborg, Sweden. Reference Documents [RD1] GR740, “Data Sheet and User's Manual",Cobham Gaisler, GR740-UM-DS, available from http://www.gaisler.com/index.php/products/components/GR740...
Low Voltage Digital Signalling Printed Circuit Board Peripheral Component Interconnect Point of Load Pulse Per Second PROM Programmable Read Only Memory System On a Chip SP3T Single Pole,3-throw (position) Switch SpaceWire To Be Confirmed To Be Defined GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
4.6 Mezzanine Interfaces. However, the delivered GR-VPX- SPW-MEZZ do not implement all such interfaces and only provides two SpaceWire interfaces in the front panel. GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
GR-VPX-GR740-BOARD Figure 3-1: GR-VPX-GR740 Development Board mounted with GR-VPX-SPW-MEZZ mezzanine board GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
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The board contains the following main items as detailed in section 4 of this document: Main Board • size 233.35x160mm • Cobham Gaisler GR740 radiation-hard system-on-chip featuring a quad-core fault-tolerant LEON4 SPARC V8 processor • 1 Mbit (128k x 8bit) MRAM •...
This board is intended for commercial use and evaluation in a standard laboratory environment, nominally, 20°C. All devices are standard commercial types, intended for use over the standard commercial operating temperature range (0 to 70ºC). GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
'universal' keys (Part number TE-1-1469492-9), allowing its installation into any slot. These keys can easily be dismounted and replaced with specific key parts if when these are known. GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
The face to face mounting distance of the two boards is 10mm. While the prototype board is mounted using simple 10mm nickel-brass Hex spacers, a future design could accommodate a custom aluminium bracket to act as a thermal interface between the two boards. GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
GR-VPX-GR740-BOARD Figure 4-4: Mezzanine board mounted on a GR-VPX-GR740 main board GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
The board incorporates a large number of SpaceWire Links distributed between the VPX backplane, GR740 Processor, mezzanine connector, External Front panel connectors and an on board header/connector. The on-board SPW network is represented in the figure below. GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
GR740 SPW router Backplane SpW Interface port number PORT 3 SPW_PL1R_CP PORT 4 SPW_PL2N_CP PORT 5 SPW_PL3R_CP PORT 6 SPW_PL2R_CP PORT 7 SPW_PL1N_CP PORT 8 SPW_PL3N_CP Table 2: GR740 SpW Router Port mapping to Backplane interfaces GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
MIL-STD-1553 / MIL-STD-1760 specifications. The configuration on the board is intended for 'transformer coupling'. For a 'direct coupling' interface to external equipment external 55 Ohm series resistors would be GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
SPW connections over the Data Plane and Control planes. This requires many resistors to be installed or removed depending on which configuration is required to be implemented. For details, refer to the schematic diagrams [RD3]. GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
9 General purpose I/O from the GR740 (MPIO signals 1 – 9) ◦ Note the GPIO (MPIO) signals are also shared with bootstrap functionality (see Table 6). • RESETN from main board reset circuit • SYSCON# and SYSCONP# from VPX backplane GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
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◦ The PCI clock must be provided from the mezzanine board. ◦ The PCI specification requires that the following system signals are pulled- PCI_FRAME, PCI_STOP, PCI_PAR, PCI_IRDY, PCI_PERR, PCI_TRDY, PCI_SERR and PCI_DEVSEL. These signals must be pulled up in the mezzanine board. GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
PPS input to GR740 GPIO1 MPIO1 GPIO to mezzanine connector GPIO2 MPIO2 GPIO to mezzanine connector GPIO3 MPIO3 GPIO to mezzanine connector GPIO4 MPIO4 GPIO to mezzanine connector GPIO5 MPIO5 GPIO to mezzanine connector GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
GPIO11 FPIO1 Front panel J5 GPIO12 FPIO2 Front panel J5 GPIO13 FPIO3 Front panel J5 GPIO14 FPIO4 Front panel J5 GPIO15 FPIO5 Front panel J5 Table 3: Functions assigned to GPIO signals of GR740 GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
S24 is set to (C-3) BPIO6 if SP3T switch BPIO6 controls S24 is set to (C-1) GPIO2_14 Not available as GPIO GPIO2_15 Not available as GPIO Table 4: Functions assigned to GPIO2 signals of GR740 GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
GR-VPX-GR740-BOARD Figure 4-7: Configuration option for switch S23 and S24 Figure 4-8: Configuration option for switch S27 to S41 GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
Debug Support Unit Interfaces Program download and debugging to the GR740 processor is performed using the GRMON Debug Monitor tool from Cobham Gaisler ([RD2]). The GR740 processor provides an interface for Debug and control of the processor by means of a host terminal via its DSU interface, as represented in Figure 4-9.
LVDS output. The AUX_CLK is a differential LVDS output which can be generated either as a copy of the 1PPS input pulse, or via a jumper from an output of the FPGA on the mezzanine. GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
PERIPHERALS 12V nom 14.5V max +3V3 VDIG_3V3 +3V3 DCDC TPS54527 5A max VDIG_2V5 +2V5 +2V5 GR740 DCDC TPS54527 5A max +1V2 +1V2 VCORE DCDC TPS54527 5A max Figure 4-11: Power Regulation Scheme – GR-VPX-GR740 GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
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GR-VPX-GR740-BOARD The mezzanine board can receive power at a nominal input voltage of +12V provided from the 12P0V pins of the mezzanine connector. GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
To perform program download and software debugging on the hardware it is necessary to use the Cobham Gaisler GRMON3 debugging software, installed on a host PC (as represented in Figure 4-9). Please refer to the GRMON3 documentation for the installation of the software on the host PC (Linux or Windows), and for the installation of the associated hardware dongle.
There are forty SP3T configuration switches available onboard. The switch schematics and mapping provided in Figure 5-2 remains the same on all those switches, irrespective of the position or the naming convention of the switch. GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
These signals are set using the Single pole 3 position miniature switches. These switches can be set with a fine-bladed screwdriver. These 3 position switches have the possibility to set the signal value to 'pull-up' (='high') (C-3), 'float' (='undefined') (C-2), or 'pull-down (='low') (C-1). GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
GR740 Table 7: Other configurable switches default settings Jumper configurations The default status of the Jumpers on the boards is as shown in Table 8. (Other configurations may be defined by the user). GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
Configuration options for Versaclock PLL ranges JP14 Not installed VC1-PROG, do not install for parameters to be loaded via I2C JP15 Installed VC1-CLKSEL; XTAL generates 25MHZ clock Table 8: Default Setting of Jumpers – GR-VPX-GR740 GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
GR-VPX-GR740-BOARD Interfaces and Configuration Figure 6-1: Front Panel View (pins 1 marked red) GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
Table 9: List of Connectors – GR-VPX-GR740 List of Connectors – GR-VPX-SPW-MEZZ Name Function Type Description SPW-1 MDM_9S SpaceWire interface GR740 ROUTER PORT 2 SPW-0 MDM_9S SpaceWire interface GR740 ROUTER PORT 1 Table 10: List of Connectors – GR-VPX-SPW-MEZZ GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
JTAG: TMS Table 17: J7 GR740 – JTAG Connector Name Comment VBUS +5V (from external host) Data Minus Data Plus Not used DGND Ground Table 18: J8 USB Micro connector – FTDI Quad Serial Link GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
Push Button Reset S26-S33 BP0-BP5 SP3T selects Backpanel IO signals – active when BP6 = ‘0’ S34-S41 BP0-BP5 SP3T selects Backpanel IO signals – active when BP6 = ‘1’ Table 24: List and definition of Switches GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
Details of the new mezzanine board (GR-VPX-SPW-MEZZ which provides two SpaceWire interfaces in the Front panel) are included. Table 8 Jumper JP12 installed by default, to to provide 3V3 from Main Board to Mezzanine GR-VPX-GR740-BOARD-UM, Nov 2020, Version 1.4 www.cobham.com/gaisler...
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Cobham; nor does the purchase, lease, or use of a product or service from Cobham convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual rights of Cobham or of third parties.
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