RTU server unstable

[NV4RE]

Most of the time serial did not read all the data frame and return error "bad serial frame error %v\n"

mbserver/servertu.go

Line 39 in daf3c8c

bytesRead, err := port.Read(buffer)

Because it don't know when to start/stop reading

[LeeGaning]

you should set a timeout when open the port

		err = serv.ListenRTU(&serial.Config{
			Address:  addr,
			BaudRate: cfg.Rtu.BaudRate,
			DataBits: 8,
			StopBits: 1,
			Parity:   cfg.Rtu.Parity,
			Timeout:  time.Duration(cfg.Rtu.Timeout) * time.Millisecond})

[nuannuande]

in serverrtu.go , you can append multiple buffer to one buffer then exec NewRTUFrame()

if bytesRead != 0 {
		// Set the length of the packet to the number of read bytes.
		packet := buffer[:bytesRead]
		res1 := append(Abuf, packet...)
		if len(Abuf) > 20 {
			CleanAbuf()
		}
		frame, err := NewRTUFrame(res1)
		if err != nil {
			Abuf = res1
			continue SkipFrameError
			//return
		}