22nd SpaceWire Working Group Meeting

9 Dec 2014, 14:00 → 11 Dec 2014, 18:00 Europe/Amsterdam

Newton 1 (ESA/ESTEC)

David Jameux (ESA), Martin Suess

Dear SpaceWire Technology Developers and Users,

The 22 SpaceWire Working Group Meeting took place from Tuesday 9th of December (PM)  to Thursday 11th (AM) of December at ESA/ESTEC followed by a SpW WG Steering Committee meeting on Thursday 11th of December (PM).

The meeting covered the following topics/tracks:

SpaceWire Simulation, Test, and Verification (Convener Y. Sheynin, UoStPg)

SpaceWire Component Developments (Convener G. Magistrati, ESA/ESTEC)

SpaceWire Network Management (Conveners G. Rakow, NASA/GSFC)

SpaceWire for C&C (Conveners F. Torelli & C. Honvault, ESA/ESTEC)

SpaceWire Evolutions I – ECSS-ST-E-50-12C Rev.1 (Convener D. Jameux, ESA/ESTEC)

SpaceWire Evolutions II – SpaceFibre (Conveners  M. Süss)

SpaceWire Events (Convener M. Süss)

Tuesday, 9 December

Meeting Opening

1 22nd SpaceWire Working Group Welcome & Standardisation Planning

Speaker: Mr Martin Suess (ESA/ESTEC)

Slides SpW_WG_Mtg#22_-_SpaceWire_Working_Group_Welcome_&_Standardisation_Planning.pdf

2 Presentation of the meeting agenda

Speaker: Mr David Jameux (ESA/ESTEC)

Agenda 22nd SpaceWire Working Group Meeting Agenda

SpW Evolutions I – ECSS-ST-E-50-12C Rev.1

Convener: Mr David Jameux (ESA/ESTEC)

3 Status of the SpW standard revision process

Speaker: Mr David Jameux (ESA/ESTEC)

ECSS-E-ST-50-12C-Rev1 Draft D v0.3 http://spacewire.esa.int/WG/SpaceWire/SpW-WG-Mtg22-SupportDocuments/

4 Presentation of ECSS-E-ST-50-12C-Rev1 Draft D v0.3

Speaker: Prof. Steve Parkes (University of Dundee)

Slides Presentation of ECSS-E-ST-50-12C-Rev1 Draft D v0.3

5 Review result of ECSS-E-ST-50-12C-Rev1 Draft D v0.3

Speaker: Dr Takayuki Yuasa (JAXA)

Slides Feedback_on_SpaceWire_Standard_Revision_Draft_D_Yuasa_rev1.pdf

6 Review result of ECSS-E-ST-50-12C-Rev1 Draft D v0.3

Speaker: Mr Valentin Olenev (St. Petersburg State University of Aerospace Instrumentation)

Slides The ECSS-E-ST-50-12C-Rev1 Draft D v0.3 Review from SUAI

16:45 Coffee Break

SpW for C&C

Conveners: Mr Christophe HONVAULT (ESA), Mr Felice Torelli (ESA)

7 Status of SpW-D development

This presentation will summarise the current state of work on the SpaceWire-D development activity. The progress with prototype implementation will be summarised.

Speaker: Prof. Steve Parkes (University of Dundee)

Slides Status of SpaceWire-D development

Support document SpaceWire-D Standard Draft D v0.15

8 SpaceR - SpW-R prototyping

Speakers: Mr Krzysztof Romanowski (ITTI), Dr Piotr Tyczka (ITTI Sp. z o.o.)

Slides Implementation and Validation of the SpaceWire-R Protocol

Social Dinner

The social dinner will take place in restaurant Iets Anders in Noordwijk as of 19.00 hours on the 9th of December. The menu is a la carte.
The website of the restaurant is: http://www.grillrestaurant-ietsanders.nl/.
The address:
Grill Restaurant Iets Anders
Pickeplein 4 - 2202 CK Noordwijk

Convener: Ms Bertilla Sinka (ESTEC)

Wednesday, 10 December

SpW Components

Conveners: Mr Alan Senior (Thales Alenia Sapce UK), Prof. Masaharu Nomachi (Osaka University)

9 SpaceWire Backplane activity

SEA is under contract to ESA to develop a SpaceWire Backplane specification and to specify a suitable backplane connector. Smiths Connectors (Hypertac) are currently developing a prototype connector that meets the specification. As part of the contract SEA is developing a preliminary draft of a "SpaceWire Backplane" standard that will be available for review by the SpW WG. The proposed presentation is to walk through the specification, describe the design rationale behind it, and invite feedback from the working group.

Speaker: Mr Alan Senior (Systems Engineering & Assessment Ltd (SEA))

ECSS-X-XX-XXX_Rev.1_March_2014_Draft_1k ECSS-X-XX-XXX_Rev.1_March_2014_Draft_1k.pdf

Slides SpaceWire Backplane Final Presentation

SpaceWire Network Management

Conveners: Mr Glenn Rakow (NASA/GSFC), Dr Peter Mendham (Bright Ascension Ltd)

10 "Network Discovery Protocols" Final presentation

The SpaceWire standard defines the aspects of a highly flexible and capable communication system; however, SpaceWire does not offer a standard mechanism for discovering the topology of a network or what SpW Devices (switches or nodes) are attached to it. Nor does it offer a standard mechanism for configuring the various aspects of a SpaceWire network, such as links and switches. SpaceWire also lacks standard features to assist detection or configuration in the service domain. This lack of standardisation for simple tasks that are required on almost all SpaceWire networks limits the level of interoperability which may exist between devices and software, and the extent to which both hardware and software can be re ‐ used between different applications. The main objective of the Network Discovery Protocols activity was to develop and partially demonstrate a protocol to permit SpaceWire network discovery and management in a standard and interoperable manner, offering ‘plug‐and‐play’ features for SpaceWire – the SpaceWire Network Discovery and Configuration Protocol (SpW‐NDCP).

Speaker: Mr Alun Taylor (SCISYS)

Slides Network Discovery Protocols Final Presentation

11:00 Coffee Break

SpW Components - Continued

Convener: Mr Giorgio Magistrati (ESA/Data Systems Division)

11 Axon Products for SpaceWire

- SpaceWire cables, - SpaceWire assemblies with micro D connectors, - SpaceWire heritage in space - Low mass SpaceWire cable, - Axomach and SpaceFiber assemblies - Development plans of a new connector (matched, low Xtalk, EMI shielded, …) for SpaceWire assemblies.

Speaker: Mr Gilles Rouchaud (Axon Cable S.A.S.)

Slides Axon solutions for space applications

12 GR718 - Status Update

The latest results of the GR718 develompent will be presented, including plans for qualification. GR718 is a radiation tolerant 18 port standalone SpaceWire router component that has been developed by Aeroflex Gaisler together with IMEC (BE), in an activity initiated by the European Space Agency under ESTEC contract 4000105402/12/NL/CBi.No

Speaker: Mr Sandi Habinc (Aeroflex Gaisler AB)

Slides GR718 Status Update and other stuff

13 Contactless connector using electromagnetic coupling

Conventional connectors have difficulty with band widening, downsizing and lightening. A contactless connector using electromagnetic coupling enables high speed (~50x) low energy (~1/500x) data communications, and reduced weight and farm factor. Furthermore, it has advantages in mechanical/electrical/chemical immunity, and dc power isolation. In this presentation, the contactless connector using transmission line coupler will be presented from its theory to applications including a satellite processor system.

Speaker: Prof. Tadahiro Kuroda

Slides Contactless Connector Using Electromagnetic Coupling

13:00 Lunch Break

SpW Network Management - Continued

Conveners: Mr Glenn Rakow (NASA/GSFC), Dr Peter Mendham (Bright Ascension Ltd)

14 SpW-FDIR Demonstration

Speaker: Dr Roger Peel (4Links Limited)

Slides The 4Links SpW-FDIR Demonstrator

15 R&D project in SpaceWire PnP for ISS satellites

Speaker: Mr Valentin Olenev (St. Petersburg State University of Aerospace Instrumentation)

Slides R&D project in SpaceWire PnP for ISS satellites

16 STP-ISS Transport Protocol for Spacecraft On-board Networks

Speaker: Mr Valentin Olenev (St. Petersburg State University of Aerospace Instrumentation)

Slides STP-ISS Transport Protocol for Spacecraft On-board Networks

17 SpaceWire network representation

Speaker: Mr David Jameux (ESA/ESTEC)

Slides SpW Network Digital Representation

Support documents Example of XML representation by SCISYS Ltd

18 XML representation of the SpW network: JAXA R&D examples

An example of XML representations of constituents of the SpaceWire network, i.e. node, link, and routing switch, is presented. In addition to the static description of a network, the XML format was also used to define data traffic in the network and its time-slot allocation for deterministic network operation; each packet transfer is described by combination a data transfer path, amount of data, and timing definition. The format was defined and implemented in the SpaceWire R&D activities done by JAXA and Nagoya University in 2012-2013, and a prototype of SpaceWire/RMAP middleware was developed and tested to support the XML network description and time-slot-triggered data transfer based on the data traffic definition XML file.

Speaker: Dr Takayuki Yuasa (JAXA)

Description XML Example Files Description_example_XML_files.txt

Slides Yuasa_SpaceWire_XML_rev1.pdf

XML Example Files

• DataTrafficDescription_InputForTimeslotAllocation.xml.xml
• DataTrafficDescription_TimeslotAllocationResult.xml
• SpaceWireNetworkTopology_example.xml
• SpaceWireNetworkTopology.xsd

19 XML-based SpaceWire network representations for developments and network management

Speaker: Mr Dmitry Razshivin (SUAI)

Slides XML-based SpaceWire network representations for developments and network management

Support documents Example of XML representation by SUAI

16:00 Coffee Break

SpW Network Management - Continued

20 Asbtract representation of SpW Networks in Thales Alenia Space

Speaker: Mr Brice Dellandrea (Thales Alenia Space)

Slides Abstract representation of SpW networks in TAS

21 A few thoughts on SpW Network representation

Speakers: Mr Krzysztof Romanowski (ITTI), Dr Piotr Tyczka (ITTI Sp. z o.o.)

Slides A few thoughts on SpaceWire network representation

SpW Components

Conveners: Mr Alan Senior (Thales Alenia Sapce UK), Prof. Masaharu Nomachi (Osaka University)

22 Next Generation Space Interconnect Standard (NGSIS) SpaceVPX and Serial RapidIO

The Next Generation Space Interconnect Standard (NGSIS) effort is a Government-Industry collaboration effort to define a set of standards for interconnects between space system components with the goal of cost effectively removing bandwidth as a constraint for future space systems. The NGSIS team has selected the ANSI/VITA 65 OpenVPX standard family for the physical baseline and is extending it for space applications. The Serial RapidIO protocol has been selected as the basis for the digital data transport and enhanced features are being defined for space applications. The NGSIS standards are developed to provide sufficient flexibility to enable users to implement a variety of system configurations, while meeting goals for interoperability and robustness for space. The NGSIS approach and effort represents a radical departure from past approaches to achieve a Modular Open System Architecture (MOSA) for space systems and could possibly serve as an exemplar for the Reinventing Space community as an alternate business model for future space systems developments.

Speaker: Mr Charles Collier (AFRL)

Slides NGSIS and Optical Interconnects for Satellites

Thursday, 11 December

SpW Simulation, Test, and Verification

Convener: Prof. Yuriy SHEYNIN (St. Petersburg University of Airospace Instrumentation)

23 SpaceWire Decoder on Oscilloscope, First Experiences

The SpW decoder developed with the help of ESA Contract No. 4000108995/13/NL/AK has matured. This presentation shows some of the most recent aspects. - Using the SpaceWire Decoder. - Latest features - Examples on Single Link traffic - Examples on Double Link (In/Out) traffic using 2 Decoders

Speaker: Mr Roland Gamper (Lahniss)

Slides SpaceWire Decoder Final Presentation

SpW Evolutions II – SpaceFibre

Conveners: Mr David Jameux (ESA/ESTEC), Mr Martin Suess (ESA/ESTEC)

24 Implementation of a SpaceFibre CODEC compliant with the standard draft F3

The current SpaceFibre draft standard F3 is the result of many iterations, reviews and prototyping. Despite the different revisions, there are not many independent implementations to prove that the current standard version is correctly and easily implementable. In this activity, the SpaceFibre draft standard F3 has been taken as the only input for the implementation of a SpaceFibre CODEC. This allows providing genuine feedback on the current specification and to effectively prove its implementability. In this presentation, the current status of the SpaceFibre activity will be presented together with the main findings and feedback on the current SpaceFibre draft standard F3. Implementation of a demonstrator using a Xilinx-based platform will be possibly shown.

Speaker: Mr Daniele Davalle (University of Pisa)

Slides Independent implementation of a SpaceFibre CODEC compliant with standard draft F3

Support Document SpaceFibre ECSS Draft F3

25 Some SpaceFibre Protocol draft problems analysis

We analyse the current SpaceFibre Protocol draft with experience of its implementation and estimation, some problems in it that require modifications: streaming data delivery without Retry in a SpaceFibre data link; taking into account data flow characteristics in frames retransmission; virtual channels reassignment at an established connection. SpaceFibre Protocol draft modifications are proposed.

Speaker: Dr Elena Suvorova (SUAI)

11:00 Coffee Break

SpW Evolutions II – SpaceFibre

26 An Experimental SpaceFibre Interface Chip

The Very High Speed Serial Interface (VHiSSI) ASIC is the result of a European Framework 7 project. This device will be described and a demonstration made of it operating as a SpaceWire to SpaceFibre bridge device, one of several modes of operation the chip supports.

Speaker: Prof. Steve Parkes (University of Dundee)

Slides An Experimental SpaceFibre Interface Chip

SpaceWire Conferences

Convener: Mr Martin Suess (ESA/ESTEC)

27 SpaceWire Conferences 2014 and 2016

Speaker: Mr Martin Suess (ESA/ESTEC)

Slides SpaceWire Conferences 2014 and 2016

13:15 Lunch Break

SpW WG Steering Committee meeting