The design of CAN bus hardware interface circuit based on SJA1000, the selection of chips, the design of software and the realization of CAN communication are expatiated.

论述了基于SJA1000的CAN总线的硬件接口电路的设计、芯片的选择、软件设计及CAN通信的实现。

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In view of the disparity among DSP and other microprocessors, the logic circuit in waiting requisition and the data exchanging interface among DSP and external chips is offered.

针对数字信号处理器与其他微处理器的不同之处，文中着重介绍了等待状态发生逻辑电路及数字信号处理器与外部芯片的数据接口电路。

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Hardware circuit design and software control programming which are based of CH341S interface chips are introduced in the paper, which provides more completed designing project for the readers.

介绍了基于CH341S的USB接口设计的硬件电路原理及软件控制程序，提供了较完整的设计方案。

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