Posted by Vetch on 2016-10-31 10:08

Hi, Yes, as requested by Brano, please may you provide more details?
Another proposal : some USB 3.0 Controllers (such as NEC/Renesas) have a bug that prevents access to USB devices.
The symptom is : issues to download the binary to the board.
You may upgrade to the latest version of the controller to fix this issue.
It can be downloaded from :
https://s3.amazonaws.com/plugable/bin/2014-03-Plugable-Renesas-USB-3.0-200-2.1.39.0.zip

Posted by dnbharrin on 2016-11-02 22:20

Still cannot connect! I obtained a second board after being told that the first board was bad. However, the second board won’t connect either!!!!
THis is a STM32L476 Nucleo 64 development board. I am connecting to a Dell Inspiron 15 laptop running Windows 7 Professional. I tried to update the USB drivers but they are all upto date. I can’t understand why I am the only one having this problem. Every thing on my computer is standard stuff.

Posted by dnbharrin on 2016-11-02 22:45

Finally success! It turned out to be a bad cable! Always check the cable by swapping out. Thanks for all the replys.

Dave

Posted by PeterYoung on 2017-11-02 04:24

I’ve been through all the documentation and I’m getting very frustrated with this eval kit - it really shouldn’t be this difficult!

Installed latest USB drivers, however the device is still not showing up under device manager->USB devices and obviously ST-Link says “no St-Link detected”. I have made sure I followed the power supply sequence for USB-enumeration to succeed. Also tried several different USB cables & USB ports.

Running Win 10.

FWIW I have a STM32F469NIH6 DISCO kit that works with ST-link and the drivers mentioned above.

Any help would be much appreciated.