Hello,
I am trying to use the USBX communication framework with the S1 DK but I am having some issues. I have just tried the console project that Karol put together in this post (renesasrulz.com/.../24386 without any modification but I still see the same issue. The issue I am having is that the terminal takes a very long time to connect to the COM port (more than 20 seconds!). So, e.g. Tera Term would say "connecting" or "not responding" for sometime and then it would connect 20 to 30 seconds later. After it connects the communication works OK. However, this is not consistent so sometimes it connects immediately.
I am using Windows 10 and I have been using the USBX communication framework with the S7 and the S5 without any issues.