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# PexP
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A White Rabbit timing receiver in PCIe (PCI Express) format.
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## Main Features
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- FPGA
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- Altera Arria V GX (5AGXMA3D4F27I3N)
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- CPLD
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- Xilinx Coolrunner-II (XC2C64A)
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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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- Front panel
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- 1x SFP port (White Rabbit compatible)
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- 5x LEMO/SMC programmable I/Os capable of driving 3.3V @ 50 ohm
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- 6x Programmable LEDs
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## Project Information
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- [Design files](https://www.ohwr.org/project/tr-pexp/tree/master)
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- [FPGA source code](https://github.com/GSI-CS-CO/bel_projects)
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- [Hardware commissioning guide](https://www-acc.gsi.de/wiki/Timing/TimingSystemPEXPTestingAndCommissioning)
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- [Description of the General Machine Timing System (GMT) @
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GSI](https://www-acc.gsi.de/wiki/pub/Timing/TimingSystemDocuments/GMT_Description_v3-1.pdf).
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- [Description of Timing Receivers for the
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GMT](https://www-acc.gsi.de/wiki/pub/Timing/TimingSystemDocuments/GMT_TR_Description-v3.2.pdf).
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## FPGA Gateware
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`git clone https://github.com/GSI-CS-CO/bel_projects.git`
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README.md => See "Build Gateware(s)"
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## Commissioning
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Instructions for testing and commissioning can be found here:
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https://www-acc.gsi.de/wiki/Timing/TimingSystemPEXPTestingAndCommissioning
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## Photos
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## Contacts
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### Commercial Producers
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- [Cosylab](http://www.cosylab.com), Slovenia
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### General Question About the Project
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- [Alexander Hahn](mailto:a.hahn@gsi.de), [GSI](https://www.gsi.de/en), Germany
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## Status
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| **Date** | **Event** |
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| - | - |
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| 21-10-2019 | Created project and repository on OHWR |
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| 01-01-2020 | Received first prototypes (REVA) |
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| 01-08-2020 | Received first revision (REVB) |
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| 01-09-2023 | Received first of series (REVB) | |
