USB Communication Problems

Owned by Dmytro Svitlychnyi
Aug 25, 2020
2 min read

If iqTool/iqPDCT cannot establish communication with connected device, try next step:

 

1. Check, if Serial Port was created after iqLink/iqInterface was connected to PC

1.1.   Disconnect device

1.2.   Open “Device Manager”

1.3.   Unfold tab “COM & LPT”

1.4.   Connect iqLink/iqInterface device to PC

 

1.4.1. The new port was created and operated correctly

in this case please connect to IQ2 Development support (support@iq2-development.de) with problem description and what a PC was used:

  • Windows version

  • PC producer

  • Modell

1.4.2.The new port was created but marked as operated incorrectly

please reinstall a driver. The new version can be found in https://www.ftdichip.com/Drivers/VCP.htm

It is important to install VCP (not Direct) drivers !!!

1.4.3.The Serial Port was not created:

  • Disconnect a device

  • Open “Device Manager”

  • Unfold tab “Universal Serial Bus controllers”

  • Connect iqLink/iqInterface to PC

Check if USB Serial Convertor has been created

Open “Properties” for USB Serial Converter -> Advanced

Check, if “Load  VCP” is set – if not set, please set it