ADuC70xy USB Combi-Downloader

Document created by MMA Employee on Jun 3, 2012Last modified by carol.nelson on Jan 24, 2018
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I am attempting to use the ADuC70xy USB Combi-Downloader in Windows 7 64bit but I keep getting a driver not installed message.

See attached picture.

How can I fix this ? It works fine in WinXP.


thanks !


Hi Bob,


This is a problem with Win 7 requiring signed drivers.

ADI uses a custom Product ID in the FTDI chip on the dongle you are using.

To attain compatibility with Windows 7 you must change this custom PID to a generic FTDI default.


To do this perform the following :


  1. Go to the FTDI web site and download the FT_Prog firmware update program


   2. Using a WinXP machine connect the dongle and run the FT_Prog software.

   3. Click the magnifying glass icon on the toolbar ( scan and parse). This will load the PID and VID from the dongles FTDI chip.

   4. Change the PID from A640 to 6001 and click the Program Devices icon on the toolbar.


Connect the dongle to a Windows 7 machine and it will now recognise the dongle.


best regards,



this instructions can be used also for the ADuC7061 MiniKit and the ADuC7023 evaluation-boards using FTDI UART/USB-Converter.


This FAQ was generated from the following discussion: ADuC70xy USB Combi-Downloader