Perhaps someone can point me in the right direction.
I have downloaded the USB CDC echo example through Atmel START for the SAME70 Xplained board and programmed it.
The virtual COM port does show up in Windows (version 10 Pro) but as soon as I want to open the port in a terminal program (Realterm v. 220.127.116.11) I get an error "The parameter is incorrect".
(In a similar way I tried the USB MSC example and that seems to work ok.)
In addition I loaded the ASF3 Device CDC example and that works as expected. (Conclusion: hardware is ok.)
Does anyone have an idea what I am doing wrong?
(SAME70_DFP 2.4.166 (2019-02-18); CMSIS 5.4.0 (2018-08-01); AS 7.0.2397)