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![](/uploads/e62f4d86e09945dd15a6390b1c8c4dde/spexi_v1_small.jpg)
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*SPEXI v1**
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**SPEXI v1**
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## Main Features
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core](https://www.ohwr.org/project/wr-cores/wikis/Wrpc-core\)))
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- 1x 20 MHz VCXO controlled by a DAC with SPI interface (AD5662,
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used by [White Rabbit PTP
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core](https://www.ohwr.org/project/wr-cores/wikis/Wrpc-core\)))
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core](https://www.ohwr.org/project/wr-cores/wikis/Wrpc-core\))
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- 1x low-jitter frequency synthesizer (TI CDCM61004, fixed
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configuration, Fout=125MHz, used by [White Rabbit PTP
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core](https://www.ohwr.org/project/wr-cores/wikis/Wrpc-core\)))
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- On board memory
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- 1x 2Gbit (256 MByte) DDR3 (MT41J128M16JT-125)
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- 1x SPI 32Mbit flash PROM for multiboot FPGA powerup
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configuration, storage of the FPGA firmware or of critical data
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(M25P128-VMF6G)
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configuration, storage of the FPGA firmware or of critical data (M25P128-VMF6G)
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- Miscellaneous
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- on-board thermometer IC (DS18B20U+)
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- unique 64-bit identifier (DS18B20U+)
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## PXIe specific features
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\* PXI express form factor, 3U high, single slot
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\* Clock and synchronisation back plane signals
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* PXI express form factor, 3U high, single slot
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* Clock and synchronisation back plane signals
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|**PXI clock and synchronisation signals**|**PXI express clock and synchronisation signals**|
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|----|----|
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## Project information
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- Official production documentation: [EDMS
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EDA-02839](http://edms.cern.ch/nav/EDA-02839/)
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- Official production documentation: [EDMS EDA-02839(http://edms.cern.ch/nav/EDA-02839/)
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- [CERN specific information](CERN)
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- [Design Information](DesignInfo)
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- [Software](Software)
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[SPEC](https://www.ohwr.org/project/spec/wiki), some of the
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documentation of the SPEC can also be used:
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- [Getting Started with the
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SPEC](https://www.ohwr.org/project/spec-getting-started/wiki)
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(project)
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- [SPEC Frequently Asked
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Questions](https://www.ohwr.org/project/spec/wikis/FAQ)
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- [Getting Started with the SPEC](https://www.ohwr.org/project/spec-getting-started/wiki) (project)
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- [SPEC Frequently Asked Questions](https://www.ohwr.org/project/spec/wikis/FAQ)
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-----
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### Hardware
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- Official production documentation: [EDMS
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EDA-02839](http://edms.cern.ch/nav/EDA-02839/)
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- Pre-release design documentation:
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[SPEXI-V1.0.zip](https://www.ohwr.org/project/spexi/uploads/dd19b51611639085e51bd8c332f305e4/SPEXI-V1-0.zip)
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- Official production documentation: [EDMS EDA-02839](http://edms.cern.ch/nav/EDA-02839/)
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- Pre-release design documentation: [SPEXI-V1.0.zip](https://www.ohwr.org/project/spexi/uploads/dd19b51611639085e51bd8c332f305e4/SPEXI-V1-0.zip)
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### FPGA examples (including the .ucf-file)
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the Spartan-6
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150T.
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<!-- end list -->
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- [spexi\_golden.zip](https://www.ohwr.org/project/spexi/uploads/49147527317a03356b8fc9e0a1b9db55/spexi_golden.zip)
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The file **spexi\_golden.zip** contains the same design as
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**spexi\_simpledemo.zip** but does not contain the GPIO register for
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which other FMC specific FPGA design could be loaded
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safely.
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<!-- end list -->
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- [spexi\_pts.zip](https://www.ohwr.org/project/spexi/uploads/748fbd2f4a56afbba23ddd48e6c7ed39/spexi_pts.zip)
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The file **spexi\_pts.zip** contains the complete set of VHDL/FPGA
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designs and corresponding phyton files for the [Production Test
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### Commercial producers
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- [SPEXI](http://www.incaacomputers.com/products/spexi/) [INCAA
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Computers](http://incaacomputers.nl), Netherlands.
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- [SPEXI](http://www.incaacomputers.com/products/spexi/) [INCAA Computers](http://incaacomputers.nl), Netherlands.
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### General question about project
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-----
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Erik van der Bij, Adriaan Rijllart - 8 September 2017 |
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\ No newline at end of file |
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