Serial Port I/O- error, when calling open()

• Question

• 

  

  0

  Sign in to vote

  I'm trying to read a line from a serialport (COM3) with readline. I use a adapter USB->SERIAL. The serialport constant push gps-data. The problem is that I can´t call open(). 

  code:

  PS> [System.IO.Ports.Serialport]::getportnames()
  
  PS> $port= new-Object System.IO.Ports.SerialPort COM3,4800,None,8,one
  
  PS> $port.DtrEnable = 'true'
  
  PS> $port.RtsEnable = 'true'
  
  PS> $port.Open()

  
  

  output:

  COM3
  
  
  Exception calling "Open" with "0" arguments(s): "The I/O operation has been suspended because a thread has been terminated or a program has requested it"
  
  

  
  

  no problem in command prompt (cmd) to type port:

  TYPE COM3

  type-command output the gps-data.

  someone how has experience of the problem?

  Wednesday, July 5, 2017 10:23 AM