基于串行总线的异步通信是一种实用高效的数据传输方式。
The serial asynchronous communication is an efficiency data transfer method.
DSP对采样数据进行处理，负责电能与机械能的计量，并把处理后数据通过RS 232异步串行通信传输至ARM9平台。
We used DSP to process the sampled data and calculate the electrical energy and mechanical energy, and send the processed data to the ARM9 platform via the RS232 asynchronous serial communication.
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