serial communication interface standards through the use and development of that there are already several, but they are in the RS-232 standard on the basis of improved form of. RS-323C standard of the United States EIA (Electronic Industry Association) BELL companies together in 1969 to develop the communication protocol. It is suitable for data transfer rate of 0 ~ 20000b/s within the scope of communication. The document on the understanding the standard RS232C.

首页-串口通讯-基本知识-RS-232-C详解（一）.mht
首页-串口通讯-基本知识-RS-232-C详解（二）.mht

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