No.7（2004）6.Application Based Embedded Control Systems

Yuji TAKEDA, Kazumi SAKAMAKI, Hisanao MORI, Hideki MURAKOSHI, Takanobu BABA, Takashi YOKOTA, Kanemitsu OOTSU

We propose a new development methodology for embedded control systems called ''Application Base''. Recently, it has become problematic that the controllers which are located in the core of systems are being developed for a shorter period of time and by fewer hardware quantities in embedded control systems. Using the conventional methodologies, the controllers are realized from general CPU, real-time OS, and application programs from the bottom-up. Therefore, it is difficult to acquire a certain level of responsibility based on the specifications generated by a top-down structure such as the designs in UML. In light of this, we solve the problems by generating the architecture of the processor satisfying the required responsibility from application programs by making use of reconfigureable devices such as, FPGA, PLD and so on which are connected to memory devices. This methodology can improve the reusability of software, and can reduce the developmental period. We propose this concept and its effects on Application Base.

Keywords
Embedded control system, UML, Processor core, Real-time OS, FPGA

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