This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
求指点,图片在附件中。谢谢
您好,
检查下帧格式以及波特率设置?
用usb转232来看下上位机发的数据是否有问题。