串口通讯编程百科全书.pdf

详细 RS-232-C
串行通信接口标准已经被使用和开发，并且已经有好几个了。但都是在RS-232标准的基础上改进形成的。因此，我们将主要讨论 RS-232C。 RS-323C标准是MGEIA（电子工业协会）和BELL等公司于1969年发布的一种通信协议。适用于数据传输速率在0~20000b/s范围内的通信。本标准规定了与串行通信接口相关的问题，例如信号线功能和电气特性。由于通用设备的制造商都生产兼容RS-232C标准的通信设备，因此作为标准已广泛用于微机的通信接口。

(Detailed RS-232-C
Several serial communication standards have been developed and used. But they are all improved on the basis of RS-232 standard. Therefore, we will mainly discuss RS-232C. Rs-323c standard is a communication protocol issued by American EIA (Electronic Industry Association) and bell in 1969. It is suitable for communication with data transmission rate in the range of 0 ~ 20000b / s. This standard specifies problems related to serial communication interface, such as signal line function and electrical characteristics. Because the manufacturers of general equipment produce communication equipment compatible with RS-232C standard, it has been widely used as the standard for the communication interface of microcomputer.)

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