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Efficient Implementation of On-Chip Communication Optimized for SpaceWire Networks

Bihler, Markus and Bahls, Thomas (2018) Efficient Implementation of On-Chip Communication Optimized for SpaceWire Networks. In: Proceedings of the 8th International SpaceWire Conference 2018, pp. 113-117. STAR-Dundee Ltd. International SpaceWire Conference, Long Beach, USA. ISBN 978-0-9954530-1-2.

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Official URL: http://2018.spacewire-conference.org/proceedings/


SpaceWire has been used successfully as commu- nication backbone implemented on Field Programmable Gate Arrays (FPGAs) in several robotic systems at the DLR. However, the growing number of available System-on-Chip (SoC) solutions with integrated programmable logic and the demand for efficient processing power in embedded systems require high speed On- Chip communication. Using SpaceWire as interconnection bus inside FPGAs has a major drawback compared to dedicated On-Chip bus systems. As it is not designed to exploit the wide parallelism of FPGAs, several On-Chip communication standards outperform SpaceWire in terms of bandwidth and resource costs. Examples are the AMBA AXI bus, the Avalon bus, CoreConnect or the Wishbone SoC Interconnection. In this work, the Wishbone standard is used to show, how an FPGA system connected to a SpaceWire network can benefit from a dedicated On-Chip bus. The architecture of the Wishbone standard allows an almost seamless integration into a SpaceWire network. Essential parts of SpaceWire, like package oriented communication or time- code distribution, can be mapped onto the Wishbone standard. A slim protocol is presented to allow accessing the On-Chip address space from the SpaceWire network and vice versa. It is also shown, that a heterogeneous On-Chip network consisting of SpaceWire and Wishbone occupies less resources on an FPGA than a similar network implemented with SpaceWire only. In the future, this approach can be used to integrate SoCs with built-in programmable logic into a SpaceWire network.

Item URL in elib:https://elib.dlr.de/120403/
Document Type:Conference or Workshop Item (Speech)
Title:Efficient Implementation of On-Chip Communication Optimized for SpaceWire Networks
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:14 May 2018
Journal or Publication Title:Proceedings of the 8th International SpaceWire Conference 2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 113-117
EditorsEmailEditor's ORCID iDORCID Put Code
Publisher:STAR-Dundee Ltd
Keywords:SpaceWire, On-Chip, Wishbone
Event Title:International SpaceWire Conference
Event Location:Long Beach, USA
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Medical Assistance Systems [SY], R - Lightweight Robotics [SY]
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics (since 2013) > Mechatronic Systems
Deposited By: Bihler, Markus
Deposited On:28 Nov 2018 11:08
Last Modified:28 Nov 2018 11:08

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