Arty S7 Board is not recognised

[Kadir Tamkaya]

Hello,

I have Arty S7-50 developement board. I used this board for a couple of months without any trouble.  Last time, when I connected it to PC through USB connector, Vivado coudn't connect to the board. When I checked the Device Manager, it was seen there as Unknown USB Device. I checked the driver, it was up to date. I have one more  Arty S7-50 developement board. I tried that and worked fine. 

I can program the board by Platform Cable USB II and works fine. I downloaded FT_Prog software to check if it found the chip. But it didn't. I checked the power pins of FTDI chip, looks ok.

I suspect FTDI chip. Any idea would be helpful.

Thank you

 

[attila]

Hi @Kadir Tamkaya

Please verify the Properties/ details/ hardware ids of the 'unknown device'.

If the "VID/PID" is correct, there is a system problem with loading the driver.
In this case try using other computer.

If the "VID/PID" are zero, it could be the USB controller damaged or cabling or contact issue in the USB connector.
Try using other cable and other computer connector.

[Kadir Tamkaya]

Hi Atilla,

Thank you for help.

I have added USB device properties window. There is no information about "VID/PID" .

I used different computer and cable, but nothing changed. I did connectivity test for the USB connector on the developement board but it looks ok. 

As I said before, I tried another developement board I have. No problem with that. It works. So, I think that the problem is not related to USB controller.