Details
| Original language | English |
|---|---|
| Title of host publication | LCTES 2017: Proceedings of the 18th ACM SIGPLAN/SIGBED Conference on Languages, Compilers, and Tools for Embedded Systems |
| Editors | Zili Shao, Vijay Nagarajan |
| Publisher | Association for Computing Machinery (ACM) |
| Pages | 111-120 |
| Number of pages | 10 |
| ISBN (electronic) | 9781450350303 |
| Publication status | Published - Jun 2017 |
| Event | 18th ACM SIGPLAN/SIGBED Conference on Languages, Compilers, and Tools for Embedded Systems, LCTES 2017 - Barcelona, Spain Duration: 21 Jun 2017 → 22 Jun 2017 |
Publication series
| Name | Proceedings of the 18th ACM SIGPLAN/SIGBED Conference on Languages, Compilers, and Tools for Embedded Systems |
|---|
Abstract
The employment of a real-time operating system (RTOS) in an embedded control systems is often an all-or-nothing decision: While the RTOS-abstractions provide for easier software composition and development, the price in terms of event latencies and memory costs are high. Especially in HW/SW codesign settings, system developers try to avoid the employment of a full-blown RTOS as far as possible. In OSEK-V, we mitigate this trade-off by a very aggressive tailoring of the concrete RTOS instance into the hardware. Instead of implementing generic OS component's as custom hardware devices, we capture the actually possible application-kernel interactions as a finite-state machine and integrate the tailored RTOS semantics directly into the processor pipeline. In our experimental results with an OSEK-based implementation of a quadrotor flight controller into the Rocket/RISC-V softcore, we thereby can significantly reduce event latencies, interrupt lock times, and memory footprint at moderate costs in terms of FPGA resources.
Keywords
- Application-OS interaction analysis, Application-specific processor design, Hardware-assisted real-time scheduling, OSEK
ASJC Scopus subject areas
- Computer Science(all)
- Software
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LCTES 2017: Proceedings of the 18th ACM SIGPLAN/SIGBED Conference on Languages, Compilers, and Tools for Embedded Systems. ed. / Zili Shao; Vijay Nagarajan. Association for Computing Machinery (ACM), 2017. p. 111-120 (Proceedings of the 18th ACM SIGPLAN/SIGBED Conference on Languages, Compilers, and Tools for Embedded Systems).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - OSEK-V: Application-Specific RTOS Instantiation in Hardware
AU - Dietrich, Christian
AU - Lohmann, Daniel
N1 - Funding information: The authors thank the anonymous reviewers for their feedback. This work has been supported by the German Research Foundation (DFG) under the grants no. LO 1719/1-3, SFB/Transregio 89 “Invasive Computing” (Project C1), and LO 1719/4-1.
PY - 2017/6
Y1 - 2017/6
N2 - The employment of a real-time operating system (RTOS) in an embedded control systems is often an all-or-nothing decision: While the RTOS-abstractions provide for easier software composition and development, the price in terms of event latencies and memory costs are high. Especially in HW/SW codesign settings, system developers try to avoid the employment of a full-blown RTOS as far as possible. In OSEK-V, we mitigate this trade-off by a very aggressive tailoring of the concrete RTOS instance into the hardware. Instead of implementing generic OS component's as custom hardware devices, we capture the actually possible application-kernel interactions as a finite-state machine and integrate the tailored RTOS semantics directly into the processor pipeline. In our experimental results with an OSEK-based implementation of a quadrotor flight controller into the Rocket/RISC-V softcore, we thereby can significantly reduce event latencies, interrupt lock times, and memory footprint at moderate costs in terms of FPGA resources.
AB - The employment of a real-time operating system (RTOS) in an embedded control systems is often an all-or-nothing decision: While the RTOS-abstractions provide for easier software composition and development, the price in terms of event latencies and memory costs are high. Especially in HW/SW codesign settings, system developers try to avoid the employment of a full-blown RTOS as far as possible. In OSEK-V, we mitigate this trade-off by a very aggressive tailoring of the concrete RTOS instance into the hardware. Instead of implementing generic OS component's as custom hardware devices, we capture the actually possible application-kernel interactions as a finite-state machine and integrate the tailored RTOS semantics directly into the processor pipeline. In our experimental results with an OSEK-based implementation of a quadrotor flight controller into the Rocket/RISC-V softcore, we thereby can significantly reduce event latencies, interrupt lock times, and memory footprint at moderate costs in terms of FPGA resources.
KW - Application-OS interaction analysis
KW - Application-specific processor design
KW - Hardware-assisted real-time scheduling
KW - OSEK
UR - http://www.scopus.com/inward/record.url?scp=85029471713&partnerID=8YFLogxK
U2 - 10.1145/3078633.3081030
DO - 10.1145/3078633.3081030
M3 - Conference contribution
AN - SCOPUS:85029471713
T3 - Proceedings of the 18th ACM SIGPLAN/SIGBED Conference on Languages, Compilers, and Tools for Embedded Systems
SP - 111
EP - 120
BT - LCTES 2017: Proceedings of the 18th ACM SIGPLAN/SIGBED Conference on Languages, Compilers, and Tools for Embedded Systems
A2 - Shao, Zili
A2 - Nagarajan, Vijay
PB - Association for Computing Machinery (ACM)
T2 - 18th ACM SIGPLAN/SIGBED Conference on Languages, Compilers, and Tools for Embedded Systems, LCTES 2017
Y2 - 21 June 2017 through 22 June 2017
ER -