NDLI: Dynamic Code Overlay of SDF-Modeled Programs on Low-end Embedded Systems

Content Provider	IEEE Xplore Digital Library
Author	Hae-woo Park Kyoungjoo Oh Soyoung Park Myoung-min Sim Soonhoi Ha
Copyright Year	2006
Description	Author affiliation: Sch. of EECS, Seoul Nat. Univ. (Hae-woo Park; Kyoungjoo Oh; Soyoung Park; Myoung-min Sim; Soonhoi Ha)
Abstract	In this paper we propose a dynamic code overlay technique of synchronous data-flow (SDF)-modeled program for low-end embedded systems which lack MMU-support. With this technique, the system can utilize expensive SRAM memory more efficiently by using flash memory as code storage. SRAM is divided into several regions called overlay slots. A data-flow block or a cluster of data-flow blocks is loaded into the corresponding overlay slot on demand at run-time. Which blocks are clustered together and which overlay slots are allocated to the clusters are statically decided by the clustering and placement algorithm. We also propose an automatic code generation framework that generates the C-program code, dynamic loader and linker script files from the given SDF-modeled blocks and schematic, so we can run or simulate the program immediately without any additional coding effort. Experiments report that we can reduce the SRAM size significantly with a reasonable amount of time overhead for several real applications
Starting Page	1
Ending Page	2
File Size	217407
Page Count	2
File Format	PDF
ISBN	3981080114
DOI	10.1109/DATE.2006.243836
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-03-06
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	European Design Automation Association (EDAA)
Subject Keyword	Embedded system Random access memory Flash memory Runtime Clustering algorithms
Content Type	Text
Resource Type	Article

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