通过RS485端口不停地发送数据0xaa,用示波器观察RS485端口A、B信号线上的波形或者用RS485接收器接收发送的字符。-Through the RS485 port to send data continuously 0xaa, use oscilloscope to observe RS485 ports A, B signal waveform online or send RS485 receiver to receive characters.
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002298s ]
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