serial communication controller

A 4-line mode and changeable baud-rate serial communication is used for connecting transducer and controller.

PC机与变频器之间是通过异步串行波特率可变四线制通信方式来联接的.

Secondly, the communications flow of computer is introduced according to the analysis of serial communication protocols. And the protocols between computer's serial port and controller's communication interface are encapsulated as Dynamic Link Libraries in order to be applied to application.

接着，通过对系统串行通信协议的分析，介绍了上位机的通信流程，并把PC机串口与控制器通讯接口部分之间的协议封装成动态链接库的形式，供上层应用程序调用。

This literary adopt a High-level Data Link Control protocol ( HDLC) which faces bit, choose the serial communication controller in conformity with it, make HDLC realized conveniently through initializing the hardware.

本文采用面向比特的高级数据链路控制规程，并选择了与之相适应的串行通信控制器，使HDLC可通过硬件的初始化方便地实现。

Touch-screen controller simplifies the control of touch-screen, but the controller uses serial communication, so the higher precision of the controller needs more time to obtain coordinate.

触摸屏控制器简化了对触摸屏的控制，但他采用串行通信，这样触摸屏控制器的转换精度越高，从他读出触摸点坐标值所花的时间就越多。

The thesis takes the sanyo ECJ-218M electronic rice cooker as application object, implements the serial communication interface connected to the control center by using the I/ O ports and timer interrupt of the MCU of the cooker controller.

论文以三洋ECJ&218M型电饭煲为应用对象，通过电饭煲控制器中单片机的I／O口以及定时器中断实现了串行通信功能，与住宅控制中心相连。

The paper settles the problems of Ethernet communication based on Fins format, Controller Link network communication and protocol macro communication between locale controller and serial device and develops the controlling network program with the help of CX-Programmer 4.0, a kind of PLC programmer software.

解决了基于Fins格式的以太网通信、Controller link网络通信以及区域控制器与现场串口通信设备的协议宏通信，并使用PLC编程软件CX-Programmer4.0编写了控制网络程序。