Qt modbus serial port flow control handling
问题 I'm writing a small program using QModbusDevice over the serial port (using the QModbusRtuSerialMaster class) and have some problems. One of the problems seems to be that the flow control of the serial port is incorrect. Checking in a serial port sniffer I see that a working client sets RTS on when it sends requests, and then RTS off to receive replies. When I use QModbusRtuSerialMaster to send messages that doesn't happen. The message is sent correctly (sometimes, subject for another