Abstract： This paper presents an embedded numerical control system of grinder，including its design of hardware and software. The controller is S3C44BOX, the operating system is ｕC/OS-II, the machining-information is transferred by USB flash disk, the motor is controlled by PWM mode, the system information is displayed by LCD displayer in the proposed system. It has many advantages such as higher control accuracy, lower cost, smaller volume etc., and meanwhile it is extended and upgraded easily . It befits the reconstruction for traditional machine tool, and also befits the development for economical numerical control system.
Keyword：numerical control system of grinder，embedded system，S3C44BOX Micro Processor Unit，ｕC/OS-II operating system，controlled by PWM mode
本文论述了一个嵌入式磨削数控体系，包含体系硬件规划和软件规划。该体系以S3C44BOX为操控器，以ｕC/OS-II为操作体系，以U盘进行加工信息的离线传输，以PWM方法进行电机操控，以LCD显现器进行显现，具有操控精度高，成本低，体积小,易于扩展和晋级等特色，是传统机床的数控化改造和经济型数控机床开发的发展趋势。
关键字：数控磨床；嵌入式体系；S3C44BOX微处理器；ｕC/OS-II操作体系；PWM操控
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