If communication link for math data exchange is needed have appropriate contacts been taken?
如果需要进行数模信息的交换，是否建立了相关的沟通渠道？
PC and DSP can exchange data each other through RS-232C serial communication.
上下位机之间通过RS-232C串行通讯交换数据。
PC and DSP can exchange data each other through RS-232C serial communication.
上下位机之间通过RS-232C串行通讯交换数据。
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