| Title | (Invited Paper) Using a Dataflow abstracted Virtual Prototype for HdS-Design |
| Author | Wolfgang Ecker, Stefan Heinen, *Michael Velten (Infineon Technologies AG, Germany) |
| Page | pp. 293 - 300 |
| Keyword | Abstraction, VP, TLM, HdS |
| Abstract | The complexity of Hardware-dependent Software (HdS) continuously grows stronger than chip complexity since more and more tasks are moved to software. Clearly, the pressure on the development of new methodologies for early validation of HdS increases as well. Existing methods must be continuously improved and new methods must be developed. This is exemplified with a state-of-the-art Transaction Level (TL) model used for firmware development of a productive wireless communication chip. By discussing the strengths and shortcomings of TL modeling we derive a set of requirements for a future modeling paradigm, which led to the new data flow abstraction approach presented in this paper. Experiments showed that we gain up to 10x performance improvement. |
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| Title | (Invited Paper) Needs and Trends in Embedded Software Development for Consumer Electronics |
| Author | *Yasutaka Tsunakawa (Sony Corporation, Japan) |
| Page | pp. 301 - 303 |
| Keyword | Embedded software, Consumer electronics, Multi-Core, Many-Core |
| Abstract | Like other domains, the flow to Many-Core cannot be avoided in the domain of the consumer electronics either. The Multi-Core has already become the mainstream of the system LSI, and the number of cores in the chip will continue to increase. Because of the advancement of required functions and the pressure to the consumption electricity reduction, the flow to Many-Core will continue without cessation. However, seeing it from a point of view of the embedded software development, there are many unsolved problems lie like a huge cliff between current Multi-Core and Many-Core. The research organizations seem to make their main efforts in technical establishment of Many-Core, and the tool vendors concentrate on a solution offer to the current Multi-Core. Therefore measures of the transition period will come several years later are still insufficient. In this article, I want to discuss about the major problems which block the shift to Many-Core from the current Multi-Core, from the viewpoint of consumer electronics. |
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| Title | (Invited Paper) Hardware-dependent Software Synthesis for Many-Core Embedded Systems |
| Author | *Samar Abdi, Gunar Schirner, Ines Viskic, Hansu Cho, Yonghyun Hwang, Lochi Yu, Daniel Gajski (Center for Embedded Computer Systems, University of California, Irvine, United States) |
| Page | pp. 304 - 310 |
| Keyword | Embedded Software, Multicore Design, Software Synthesis |
| Abstract | This paper presents synthesis of Hardware Dependent
Software (HdS) for multicore and many-core designs using
Embedded System Environment (ESE). ESE is a tool set, developed
at UC Irvine, for transaction level design of multicore embedded
systems. HdS synthesis is a key component of ESE backend
design ow. We follow a design process that starts with
an application model consisting of C processes communicating
via abstract message passing channels. The application model is
mapped to a platform net-list of SW and HW cores, buses and
buffers. A high speed transaction level model (TLM) is generated
to validate abstract communication between processes mapped to
different cores. The TLM is further rened into a Pin-Cycle Accurate
Model (PCAM) for board implementation. The PCAM includes
C code for all the HdS layers including routing, packeting,
synchronization and bus transfer. The generated HdS methods
provide a library of application level services to the C processes
on individual SW cores. Therefore, the application developer does
not need to write low level HdS for board implementation. Synthesis
results for an multi-core MP3 decoder design, using ESE,
show that the HdS is generated in order of seconds, compared to
hours of manual coding. The quality of synthesized code is comparable
to manually written code in terms of performance and code
size. |
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