usrp not detectable by pc host

[johnsmith66]

Hi all,

I connect usrp x310 with my pc through ethernet port.

I can even ping 192.168.10.2(the ip address of usrp) successfully, but i can't detect the devices.

1)I can't find uhd device when I use the "uhd_find_devices". I get the response:No UHD Devices Found.

2)I can't find devices when I use the NI-USRP Configuration Utility and NI-MAX.

So why can't I successfully connect usrp with host pc? I'm really frustrating.

what I'm using:

win10,

NI-USRP 19.5.1,

LABVIEW 2018

Hoping to get some suggestions

Thanks

[garrett.w]

Hi John,

There are a few things that could be causing this (most likely a wrong FPGA image on it) so I wanted to get some clarification of your system. 

Are you using the Ettus X310 or an NI-branded USRP (e.g. NI 294x/295x)?

Are you trying to use the USRP with LabVIEW or UHD/GNU Radio?

How are you connected to the USRP (ethernet or PCIe)?

Here are a few articles to get you started on troubleshooting and/or updating the FPGA image (depending on if you are using UHD or LV):

• Troubleshooting NI-USRP and USRP Devices 
• How to update firmware and FPGA images for NI USRPs (the article doesn't show the 294x/5x options, but the later NI-USRP drivers will have that option in the Config Utility). 
• If using UHD, the X3x0 UHD and USRP User Manual will show you how to update the FPGA image depending on hardware setup and which image you want to deploy. 

If I remember correctly, I believe you are not able to update the FPGA image of the 294x/5x with the NI USRP Config Utility if you are connected via ethernet, only with a PCIe connection. However, you should still be able to see the USRP in the Config Utility with either connection type. If you want to use it with LabVIEW, I believe you'll need the .lvbitx FPGA image instead of the .bit FPGA image. The images should come with the NI-USRP driver and is located at C:\Program Files (x86)\National Instruments\NI-USRP\images.

I hope this helps!

-Garrett

[johnsmith66]

Hi Garrett, 

Thanks for your suggestions. It helps a lot.

I have solved the problem after I refresh the USRP driver from 19.5.0 to 19.0.0.

I guess the reason is that the driver version is not compatible.

And then, the configuration utility automatically alert me to refresh the FPGA image.

After that, I can detect the usrp.

[Purva1824]

I also have a question regarding the connection of ETTUS USRP with Labview. How to connect USRP N310 with LabVIEW and also with the CRIO module? I am using Ubuntu 18.04 and newer versions and I have UHD 4.0 latest version for detecting devices.