SpaceFibre Flight Software Workshop 2015

Transcription

1 SpaceFibre Flight Software Workshop 2015 Steve Parkes, University of Dundee Albert Ferrer Florit, Alberto Gonzalez Villafranca, STAR-Dundee Ltd. David McLaren, Chris McClements, University of Dundee

2 Contents SpaceFibre SpaceFibre standard SpaceFibre integrated quality of service SpaceFibre networks SpaceFibre cables and connectors SpaceFibre test and development equipment SpaceFibre chip designs SpaceFibre in radiation tolerant FPGAs 2

3 3 SpaceFibre

4 SpaceFibre SpaceFibre is A spacecraft on-board data link and network SpaceFibre runs over Electrical and fibre optic cables SpaceFibre designed specifically for spaceflight applications Integrated QoS Integrated FDIR capabilities Galvanic isolation 4

5 SpaceFibre Key Features 5 High performance 2.5 Gbits/s current flight qualified technology Gbits/s soon (6.25 Gbits/s coming) Multi laning of up to 16 lanes (40 Gbits/s) Innovative integrated QoS Priority Bandwidth reservation Scheduling Novel integrated FDIR support Transparent recovery from transient errors Error containment in virtual channels and frames Babbling Node protection Low latency Broadcast codes Compatible with SpaceWire at packet level

6 6 SpaceFibre Benefits Supports high data-rate instruments (e.g. SAR) Very high data rates Reduces cost, schedule and risk Reduction of harness mass Simplification of redundancy Increase in reliability Straightforward error recovery Very small footprint due to efficient design Supports integrated AOCS/GNC and payload network Quality of service Deterministic data delivery Supports launcher applications Long distance Galvanic isolation Easy to integrate with existing SpaceWire equipment

7 Integrated Network Single integrated network Carrying Instrument data Configuration and control information Deterministic traffic High resolution time information Event signals Improves reliability, mass, cost 7

8 8 SpaceFibre Standard

9 Management Layer ECSS SpaceFibre Standard User Application Parameters Packets NChars Broadcast Messages Network Layer Broadcast Messages Packets NChars Broadcast Messages Broadcast Messages Nodes Routers and routing Message broadcast Packet definition 9 Lane Control Physical Control Data & Control Words Data & Control Words TX Symbols Data Link Layer Multi-Lane Layer Lane Layer Physical Layer Data & Control Words Data & Control Words RX Symbols Lane Status Physical Status Link operation Quality of service Link error recovery Lane coordination Lane failure recovery Lane initialisation Encoding of data & control words SerDes Driver/Receiver Cables Connectors

10 Management Layer ECSS SpaceFibre ECSS Working Group User Application Parameters Packets NChars Broadcast Messages Network Layer Broadcast Codes Packets NChars Broadcast Messages Broadcast Codes Nodes Routers and routing Message broadcast Packet definition 10 Lane Control Physical Control Data & Control Words Data & Control Words TX Symbols Data Link Layer Multi-Lane Layer Lane Layer Physical Layer Data & Control Words Data & Control Words RX Symbols Lane Status Physical Status Link operation Quality of service Link error recovery Lane coordination Lane failure recovery Lane initialisation Encoding of data & control words SerDes Driver/Receiver Cables Connectors

11 11 SpaceFibre Integrated QoS

12 SpaceWire CODEC Packet Interface Time-Codes Management SpaceWire CODEC Serial 12

13 SpaceFibre IP Core Broadcasts short messages. Each like pair of SpW FIFOs. Management interface configures Time distribution, synchronisation, Sends and Receives packets s, BC, etc event signalling, error handling Virtual Channel Interfaces Broadcast Management SpaceFibre IP Core SerDes 13

14 SpaceFibre Quality of Service Integrated QoS scheme Priority with highest priority Bandwidth reserved with allocated bandwidth and recent low utilisation Scheduled Synchronised time-slots E.g. by broadcast messages s allocated to specific time-slots In allocated time-slot, allowed to send Integrated because All three QoS work together QoS is implemented in the hardware of the SpaceFibre interface 14

15 Virtual Channels M A C D E M U X sends when Source buffer has data to send Destination buffer has space in buffer QoS for results in highest precedence A SpW packet flowing through one does not block another packet flowing through another 15

16 QoS: Bandwidth Reserved Precedence Bandwidth Credit Counter time 16

17 QoS: Bandwidth Reserved Precedence time 17

18 QoS Priority Priority 1 Priority 2 time Priority 3 18

19 QoS Babbling Idiot Protection Priority 1 Priority 2 time Priority 3 19

20 Scheduled Precedence Time-slot

21 Configured for Priority and BW Reserved Only Time-slot

22 Simple Mixed QoS Time-slot

23 Deterministic Data Delivery Time-slot (high priority) 2 (high priority) Time-slot 1 Packets being transmitted Packets being received 23 time

24 24 SpaceFibre Networks

25 SpaceFibre Routing Switch Port 2 Port 3 SpaceFibre Port 2 SpaceFibre Interface SpaceFibre Interface SpaceFibre Port 3 Routing Switch Matrix Port 1 Port 4 SpaceFibre Port 1 SpaceFibre Interface SpaceFibre Interface SpaceFibre Port 4 Configuration Port 25

26 SpaceFibre Virtual Network 6 Instrument 1 6 I/F Port 2 6 Port 3 I/F 6 Control Processor SpaceFibre Routing Switch 6 Instrument 2 6 I/F Port 1 6 Port 4 I/F 6 Mass Memory Unit Virtual channel buffers are configured to support specific virtual channels One set of buffers is always configured to support 0, the Configuration Virtual Network 26

27 SpaceFibre Virtual Point to Point Link 6 Instrument I/F Port Port 3 I/F 6 Control Processor 2 SpaceFibre Routing Switch 6 Instrument I/F Port Port 4 I/F Mass Memory Unit 27

28 SpaceFibre Virtual Point to Point Link 6 Instrument I/F Port Port 3 I/F 6 Control Processor 2 SpaceFibre Routing Switch 6 Instrument I/F Port Port 4 I/F Mass Memory Unit 28

29 Simple SpaceFibre Network 6 Instrument I/F Port Port 3 I/F 6 Control Processor 2 SpaceFibre Routing Switch 6 Instrument I/F Port Port 4 I/F Mass Memory Unit 29

30 Spacecraft Data Handling Application Instrument I/F Port Port 3 I/F 7 Control Processor Instrument I/F Port 1 7 SpaceFibre Routing Switch Port 4 I/F Mass Memory Unit 6 6 I I 4 I 5 SpaceWire Router I/F Port Port 4 I/F 8 7 Downlink Telemetry I 6 Instruments SpaceWire - SpaceFibre Bridge 30

31 Spacecraft Data Handling Application Instrument 1 Control Processor Instrument 2 Mass Memory Unit I 3 I 4 I 5 Downlink Telemetry I 6 Instruments 31

32 Spacecraft Data Handling Application Instrument 1 Control Processor Instrument 2 SpaceFibre Routing Switch Mass Memory Unit I 3 I 4 I 5 SpaceWire SpaceFibre Bridge Downlink Telemetry I 6 Instruments 32

33 SpaceFibre Cables and Connectors 33

34 SpaceFibre Physical Layer SpaceFibre can operate over Electrical cable up to 5 m Fibre Optic cable at least 100 m Electrical version uses CML Differential High-speed 34

35 SpaceFibre Test and Development 35

36 STAR Fire SpaceFibre unit designed by STAR-Dundee Multi-purpose SpaceFibre interface SpaceWire to SpaceFibre bridge SpaceFibre packet generators/checkers SpaceFibre link analyser 36

37 STAR Fire USB SpW /BC IF SpaceFibre Port 1 (8 Virtual Channels) SpW 2 Router Reg Analyser Mictor /BC IF SpaceFibre Port 2 (8 Virtual Channels) Reg Analyser Mictor 37 RMAP Config (RMAP Target) Configuration Bus

38 38 SpaceFibre Equipment

39 39 SpaceFibre Chips

40 SpaceFibre VHDL IP Core SpaceFibre VHDL IP Core Extensively tested and validated Incorporates all capabilities Full QoS Fault detection, isolation and recovery Low latency broadcast messages Available from STAR-Dundee Implemented in a range of FPGAs Microsemi: AX, RTG4 Xilinx: V4, V5, Spartan 6, Full and lite versions Full has configurable number of s Lite is designed for a simple instrument interface with 2 s High rate data Low rate, high priority command and control 40

41 41 Radiation Tolerant SpaceFibre ASIC

42 RC64 Many Core DSP Processor Ramon Chips 64 fast CEVA X1643 DSP with FP extension and HW scheduler 300 MHz 40 GFLOPS, 384 GOPS Modem and Encrypt accelerators 4 Mbyte on-chip shared memory Fast I/O 12x SpaceFibre, SpaceWire DDR3, AD/DA LVDS I/F, NVM Rad-Hard, for space Advanced technology TSMC 65nm LP CCGA / PBGA / COB 10 Watt Modular Payloads can employ many RC64 Versatile Designed for all space missions Planned for Re-programmable in space scheduler DSP DSP DSP DSP DSP DSP DSP DSP $ $ $ $ $ $ $ $ M M M M M M M M Shared Memory MODEM DMA DDR2/3 AD/DA SpW NVM ENCRPT

43 SpaceFibre in Radiation Tolerant FPGAs 43

44 SpaceFibre Lite Evaluation Board 44 Commercial equivalent of flight proven parts Microsemi RTAX1000 TLK2711-SP SerDes Pre-programmed with STAR IP core FMC interface for connection to development boards 2.5 Gbits/s with 32-bit interface at 62.5 MHz 20% to 25% of AX1000

45 SpaceFibre on RTG4 FMC board to provide SpaceWire and SpaceFibre RTG4 SerDes running at 2.5 Gbits/s SpaceFibre interface 4% to 6% of RTG4 (2 to 8 s) SpaceWire interface 1%, RMAP Target 2% of RTG4 45

46 Demonstration RTG4 Design SpaceFibre 4 Interface RTG SpaceFibre Interface SpW SpW SpW SpW SpaceWire 46

47 SpaceFibre SpaceFibre SpaceFibre SpaceFibre SpaceFibre Demonstration STAR Fire RTG4 RTG4 Packet Generator Packet Checker SpW SpW SpW SpW SpW SpW SpW SpW Command Window USB 3.0 Brick Mk3 Brick Mk3 USB 3.0 Command Window 47

48 48

49 Conclusions 49 SpaceFibre designed specifically for spaceflight applications Integrated QoS Integrated FDIR capabilities Galvanic isolation Compatible with SpaceWire packet level Efficient design giving very small footprint Benefits Very high performance Reduced harness mass Interoperability with existing SpaceWire devices Simplification of redundancy Deterministic data delivery for control applications Single integrated network Running on RTAX and RTG4 now

50 Thank You Any questions? Demonstration in Exhibition/Coffee area 50