This article introduces the process of designing the communicationboard between 485 - bus and USB and 485-device detection system.
本文介绍usb接口的485设备通信板卡和485设备检测软件的设计过程。
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The result indicates that the PROFIBUS-DP communicationboard based on PCI bus, designed and Implemented by the author, costs low and meets the engineering needs.
We divide the whole design into three parts based on the characters of MPC860T: the main board design, the self-define slot design and the communicationboard design.