Communication frames begin with a start bit and end with a stop bit.

串口通讯以起始位开始，以终止位结束。

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It is used to set baud rate, parity check, number of data bits, stop bit.

它是用来设置波特率，奇偶校验，数据位数，停止位。

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It is used to set baud rate, parity check, number of data bits, stop bit.

它是用来设置波特率，奇偶校验，数据位数，停止位。

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