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UART on ZedBoard

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KyleZA
Junior(0)
UART on ZedBoard

Hi all - first post :)

Please help if you can - I connected my Zedboard to my Windows 10 (64bit) PC for the first time today. The driver automatically installed the Digilent USB to Serial converter, which appears in the device manager. However, it installs no virtual COM port. I have tried uninstalling the driver found by Windows Update, disconnecting from my network, and installing the driver from Cypress (http://www.cypress.com/documentation/software-and-drivers/microsoft-cert...) which did not fix the problem. I also noticed that the chip on the board near the USB OTG port is an FTDI FT232, so I subsequently also installed that, but again, to no avail.

Could you please advise?

TroutChaser
Moderator(18)
I don't have a Windows 10 PC

I don't have a Windows 10 PC to duplicate the issue but you may find some useful information in this post:
 
http://zedboard.org/content/uart-driver-does-not-work-new-pc
 
Let us know if you find a resolution. If anyone else has successfully installed the Cypress UART drivers on Win 10 please let us know.
 
-Gary

KyleZA
Junior(0)
Hi Gary,

Hi Gary,

Thanks for the response - I did try the steps in that forum, but unfortunately to no avail :( The Cypress UART driver directory in C:\Program Files (x86)\Cypress\Cypress USB-Serial Driver\DriverBinary\CDC_Driver\bin has no sub-folder for Windows 10, and Device Manager will not allow me to install the driver for Windows 7 or 8.

fletch
Moderator(23)
Just to be certain, are you

Just to be certain, are you sure you are plugging into the USB-UART port? ZedBoard has 3 microUSB ports. If plugging in automatically installed the Digilent drivers, then that tells me you are plugged into the microUSB on the top of the board between the barrel jack and the audio jacks labeled PROG.
 
What happens if you plug into the microUSB on the left side of the board nearest the ON/OFF switch labeled UART?
 
I have also submitted a case to Cypress checking on Windows 10 compatibility.
 
Bryan

fletch
Moderator(23)
Preliminary driver update

Preliminary driver update from Cypress, including Windows 10. This link is only good for 1 week from today. Cypress will be posting this themselves soon, so I'm told.
https://avnet.egnyte.com/dl/SDX2WuJghB
 
Note -- I have not tried this myself!
 
Bryan

KyleZA
Junior(0)
Hi Bryan,

Hi Bryan,

Thank you very much for this - your two posts solved the problem. I was indeed plugged into the wrong USB port on the board, and changing it, combined with installing the driver you posted, did the trick!

fletch
Moderator(23)
That is good news! I also got

That is good news! I also got some additional information from Cypress.
 
These are the official drivers that will be released. Currently we are making an installer for this so that the customer doesn't have to manually install them. So we are taking time. But the drivers are being pushed through Windows update already. So the drivers are public through Windows Update.
 
Bryan

BobStrunz
Junior(0)
Please, A little more detail

Hi,

I've been struggling with this for 2 days now. Im still not getting it working. Could someone please just post a short sequence of installation instructions?

Thank you,
Bob.

TroutChaser
Moderator(18)
Hello Bob,

Hello Bob,
 
To make sure we understand the problem, you are trying to use the Cypress USB UART on the ZedBoard with Windows 10?
 
If so I would first attempt to just connect the ZedBoard USB UART port (J14 on the ZedBoard) directly to a USB port on your Windows machine and see if the driver is installed automatically (if Cypress has pushed the updated driver already). Don't be impatient as this can take a little while to complete on occasion. I don't have a Windows 10 PC to test this on.
 
If this does not work then I would download the driver update listed above, while it is still active, and replace the Cypress USB UART driver on your Windows 10 PC.
 
-Gary

muhd7rosli
Junior(0)
Rollback the driver

I had the problem with the both avnet cypress driver and cypress official driver. Both updates only install the zedboard as usb-art adapter but the COM port does not appear under Ports (COM & LPT) in the device manager. The work around that I follow that works is by following the steps in:

http://zedboard.org/content/uart-driver-does-not-work-new-pc

However, once you're connected to the internet, the driver for the usb will update itself and the usb serial port will disappear again under the Ports (COM & LPT). The workaround for this step is just rollback the driver. The com would appear again.

I have traced the problem for this update in Event Viewer and it points to:

Driver Management concluded the process to install driver cypressusbandbus.inf_amd64_b9411dae2ee00e22\cypressusbandbus.inf for Device Instance ID USB\VID_04B4&PID_0008\0410A3D82426 with the following status: 0x0.

muhd7rosli
Junior(0)
Additional error

This is the addendum to the error message I posted.

Device USB\VID_04B4&PID_0008\0410A3D82426 could not be migrated.

Last Device Instance Id: USB\VID_1532&PID_0040\5&DC4A972&0&14
Class Guid: {36FC9E60-C465-11CF-8056-444553540000}
Location Path: PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(14)
Migration Rank: 0xF000FFFFFFFF0033
Present: false
Status: 0xC0000719

BobStrunz
Junior(0)
Windows 10

Sorry, just to clarify things. Yes Windows 10 is my problem. I've been struggling with this for a few days now. I'm going to try a clean reinstall this morning. If I can get it working I'll post the steps.

Thank you all,
Bob

BobStrunz
Junior(0)
No Luck

Ok,

So I followed the steps outlined in the workaround but I do not see "Virtual Serial Port Device 00" anywhere in my device manager. I uninstalled all cypress drivers and reinstalled the drivers "cypressusbandbus" and "cypressserial" by right-clicking on the .inf files. I get a com port enumerating ok but then when I click on the USB Serial Port device I see the error message "Currently this hardware device is not connected to the computer (Code 45). To fix this problem reconnect the device to the computer". So I am not any further on with this, despite the newly-released drivers.

BobStrunz
Junior(0)
Further Information

If I look at the events on the USB Serial port I get the message "Device Ports\VID_04B&PID_0008&REV_0000\1&2b53a856&3&00 requires further installation"

TroutChaser
Moderator(18)
Take a look at this forum

Take a look at this forum thread:
 
http://zedboard.org/content/uart-driver-does-not-work-new-pc
 
Ed reports that he has it working with details.
 
-Gary

BobStrunz
Junior(0)
Still not Working

Ok, so I took the rather drastic step of rolling back my laptop to Windows 8.1. This has still not solved the problem. In the Cypress USB Bus Enumerator I see the message

"This device is working properly, there is a secondary device connected to the hardware that windows cannot identify because it does not have a valid hardware identification number"

BobStrunz
Junior(0)
Issue Identified (I think)

Ok,

So here is what is happening on Windows 8.1 and I suspect on Windows 10 also.

If you start clean and run the following program with the system disconnected from all network access it will install and work for you.

CypressDriverInstaller_0.exe

The problem seems to be in the COM Port Driver.

With the 3.13.32 version installed it all works fine

BUT ...

The windows update then breaks it because it installs the 3.13.0.57 latest update which does not work.

So as soon as you connect the network the stupid thing updates itself and breaks itself again.

AND ...

For some reason, the driver will not allow a rollback, you can click the button as much as you like but it doesn't do it.

So ... we need a bit of help from Cypress here as far as I can make out, I've wasted an entire week on this (I'm sure plenty of others have wasted lots of time too) and its simply not good enough.

Regards,
Bob.