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DSOX2022A can't connect to a PCB via the USB

Question asked by angs on Jul 24, 2018
Latest reply on Jul 25, 2018 by angs

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When I connect my Oscilloscope to Windows 10 pc. The OS doesn't recognize it.

Referring the info on Why can’t my PC connect to my InfiniiVision oscilloscope via its LAN/USB/GPIB interface? | Keysight (formerly Agilent’s …

My Oscilloscope doesn't show the USB option on I/O Configure menu, however, the screen shows there is control port in USB

I haven't used my oscilloscope and benchvue for a long time, but I remember that I didn't have this problem and could connect it to my pc without any problem.

Can anyone tell me what is the problem?

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pat_white Jul 24, 2018 7:45 AM
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The first reference info link is for previous generation InfiniiVision oscilloscopes, not the InfiniiVision X-Series oscilloscopes. In the X-Series oscilloscopes, interfaces are automatically enabled, and there is no control to enable them individually. So, the photo shown is correct.

I don't remember any issues when I moved to Windows 10. I assume the IO Libraries Suite software is installed on the PC (along with BenchVue) and that you're using the (square) USB Device port on the back of the oscilloscope. I'm wondering if the problem could be the USB port on the PC -- do other devices work on that same port?

Best Regards,
Pat
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angs Jul 24, 2018 12:13 PM
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Hi Path,

Thanks for the reply. Yes the USB port on my laptop works fine and use it everyday with other devices.

I've just downloaded and installed the libraries with Keysight_Instrument_Control_Bundle_4.2018.exe However, I still get the same repetitive error message from Windows saying that the USB device is not recognized.

I have a 34461A DMM, and connect it via the same port and USB B cable. The windows recognizes it but the device manager says "drivers for this device is not installed". Keysight Connection Expert 2018 doesn't find the DMM or Oscilloscope.

I've checked both product pages and don't see any Windows 10 driver
Technical Support: DSOX2022A Oscilloscope: 200 MHz, 2 Analog Channels | Keysight (formerly Agilent’s Electronic Measur…
rather than Matlab, LabView etc. drivers.

Keysight Connection Expert > About Connection expert shows this:

IO Libraries Version: 18.1.23218.2
Copyright © Keysight Technologies, 1983-2018
This software is installed on a 64-bit operating system.
==============================
64-bit VISA information (2 installed):
Keysight VISA
Tektronix VISA
64-bit IO Libraries Path:
C:\Program Files\Keysight\IO Libraries Suite\
64-bit IVI Components Path:
C:\Program Files\IVI Foundation\IVI\
64-bit VISA Path:
C:\Program Files\IVI Foundation\VISA\
==============================
32-bit VISA Information:
Keysight VISA: The primary VISA library
32-bit IO Libraries Path:
C:\Program Files (x86)\Keysight\IO Libraries Suite\
32-bit IVI Components Path:
C:\Program Files (x86)\IVI Foundation\IVI\
32-bit VISA Path:
C:\Program Files (x86)\IVI Foundation\VISA\
==============================
Registry Path:
HKLM\SOFTWARE\Keysight\IO Libraries Suite\CurrentVersion

I found an example on Using a USB connection | Keysight (formerly Agilent’s Electronic Measurement)
that one says Windows will automatically detect and install the appropriate drivers, but it looks like it doesn't do it on my Windows 10.

My windows Specification:
Edition: Windows 10 Home
Version: 1803
OS build: 17134.165

Do you know where can I find the Windows drivers?
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pat_white Jul 24, 2018 1:46 PM
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The USB TMC drivers should be part of the IO Libraries Suite. When looking for the drivers in Google, I saw this Forum discussion that is very similar to your issue: https://community.keysight.com/thread/25198

I wonder if the "How to manually assign the USB TMC driver to a device.pdf" instructions will help you.

Best Regards,
Pat
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angs Jul 24, 2018 2:37 PM
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yes, it seems like a similar problem, but it didn't help. I followed the tutorial, now the DMM is visible as a USB device and visible on Connection Expert, but it has red X mark on it and Benchvue doesn't connect to it.

Windows still doesn't recognize the oscilloscope, it shows the attached error message. It constantly tries the USB re-connection, but it gets the same error all the time. I connect it to a Linux device, by default shall I see it as a /dev/ttyUSBx? (I don't see any new device under /dev/.) I wonder if the USB port is really broken. I barely used the USB port and the oscilloscope. What would be your suggestion to solve the issue?
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angs Jul 25, 2018 4:11 AM
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I've just tested the usb connection with my old laptop (windows 8) that I used to have no problem. Now that PC also says Windows doesn't recognize the usb device. The device manager says " a request for the USB device descriptor failed" code 43. Does it mean that the usb port of the oscilloscope is broken? It is couple of years old oscilloscope but I barely used it.
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pat_white Jul 25, 2018 7:44 AM
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At this point, I would try updating your oscilloscope's firmware (see www.keysight.com/find/2000X-Series-sw). In more recent firmware, there is a Compatibility Mode option that appears under [Utilitiy] > I/O > Configure, USB.

If that doesn't help, maybe the oscilloscope's USB Device port is broken, and you should contact technical support (see www.keysight.com/find/contactus_support).

Best Regards,
Pat
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angs Jul 25, 2018 9:01 AM
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I've just upgraded the firmware, but it still gets the same error (usb description failed). Compatibility mode also didn't help.

I contacted the technical support. Thank you.
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DSOX2022A can't connect to a PCB via the USB

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