多摩川17bit绝对值编码器的NRG协议文档，配合上传的解码源程序，采用半双工的通信模式。,Tamagawa 17bit absolute encoder NRG agreement documents, with the upload source decoder, using half-duplex communication mode.

串行口方式1的发送和接收全双工,请试一下就可以了-Serial port mode 1, to send and receive full-duplex, please try to be a