Hi, I came to the thought of applying the RebootDFU command from reading a reply in the post below, that’s not to say by applying RebootDFU command I was dismissing the suggestion for the hard reset , it appeared to me from the post that it may be another method of doing the same. Appreciate your expertise in clarifying that it is in fact not the same. Whatever the RebootDFU command does it seemed to help resolve my issue in that the COM port driver appeared to reset itself, I could not hazard a guess as to how but it seemed to. When I then re-applied your proffie-dfu-setup.exe the STM32 Bootloader device appeared. Prior to the RebootDFU command running the proffie-dfu-setup.exe had no positive effect. I have pretty much got my head around my 3.9 board but I’m still struggling with my 2.2 board for some reason.
The post I refer to is below;
DFU Driver Issues - ProffieOS - The Crucible
Thanks for your reply and advice, it is very much appreciated.
Regards
Les