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Báo cáo hóa học: " Research Article Implementing a WLAN Video Terminal Using UML and Fully Automated Design Flow"

Tham khảo luận văn - đề án 'báo cáo hóa học: " research article implementing a wlan video terminal using uml and fully automated design flow"', luận văn - báo cáo phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Hindawi Publishing Corporation EURASIP Journal on Embedded Systems Volume 2007 Article ID 85029 15 pages doi 10.1155 2007 85029 Research Article Implementing a WLAN Video Terminal Using UML and Fully Automated Design Flow Petri Kukkala 1 Mikko Setala 2 Tero Arpinen 2 Erno Salminen 2 Marko Hannikainen 2 and Timo D. Hamalainen2 1 Nokia Technology Platforms Visiokatu 6 33720 Tampere Finland 2 Institute of Digital and Computer Systems Tampere University of Technology Korkeakoulunkatu 1 33720 Tampere Finland Received 28 July 2006 Revised 12 December 2006 Accepted 10 January 2007 Recommended by Gang Qu This case study presents UML-based design and implementation of a wireless video terminal on a multiprocessor system-on-chip SoC . The terminal comprises video encoder and WLAN communications subsystems. In this paper we present the UML models used in designing the functionality of the subsystems as well as the architecture of the terminal hardware. We use the Koski design flow and tools for fully automated implementation of the terminal on FPGA. Measurements were performed to evaluate the performance of the FPGA implementation. Currently fully software encoder achieves the frame rate of 3.0 fps with three 50 MHz processors which is one half of a reference C implementation. Thus using UML and design automation reduces the performance but we argue that this is highly accepted as we gain significant improvement in design efficiency and flexibility. The experiments with the UML-based design flow proved its suitability and competence in designing complex embedded multimedia terminals. Copyright 2007 Petri Kukkala et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION Modern embedded systems have an increasing complexity as they introduce various multimedia and communication functionalities. Novel .