Re: [Discuss-gnuradio] Regarding usrp b200mini

[Marcus D. Leech]

On 06/20/2018 03:13 PM, Sai Parepalli Laxman wrote:

Yes, I will refer that.

I am trying to decode the P25 signal using b200mini on ubuntu 16.04 using gnuradio. 

I have the P25 receiver(demodulator + receiver) open source code compiled and running but how do I make it work with usrp b200mini?

How would I go about that?

I'm sorry if I am vague but I am ready to provide additional details.

Thanks

There's probably an e-mail list devoted specifically to that software--you might try there.

On Wed, Jun 20, 2018 at 3:00 PM, Marcus D. Leech <address@hidden> wrote:

On 06/20/2018 02:55 PM, Sai Parepalli Laxman wrote:

The device address should be entered as the one that shows up when I command uhd_find_devices?

This shows up when I run uhd_find_devices

UHD Device 0

Device Address:

serial: 31216B8

name:B200mini

type: b200

Thanks for your time

https://files.ettus.com/manual/page_identification.html

In your case:

type=b200

Will work, but I suggest spending some time with the online UHD manual, and the Ettus Knowledge base:

https://kb.ettus.com/Knowledge_Base

On Wed, Jun 20, 2018 at 2:51 PM, Marcus D. Leech <address@hidden> wrote:

On 06/20/2018 02:40 PM, Sai Parepalli Laxman wrote:

Both Gnuradio and UHD support was build from source code with all dependencies. The block shows up but I am not able to run the flow graph?

What does "not able to run the flow-graph" mean, precisely?   We can only help you if we have details and "it doesn't work" is too hand-wavy
  to provide adequate assistance.

 

Does GNURadio companion identify the device?

What do you mean by "identify the device".   There's a "device address" field in any UHD source/sink.   It must be filled out to tell it what
  UHD device you'd like your flow-graph to talk to.  You could have more than one on a system, and there are many different types of
  USRP devices.  UHD (and by inference, Gnu Radio) has no way of knowing what your intention is.  You have to tell it.

On Wed, Jun 20, 2018 at 2:35 PM, Marcus D. Leech <address@hidden> wrote:

On 06/20/2018 02:17 PM, Sai Parepalli Laxman wrote:

Hey guys,

I am fairly new to gnuradio companion but I was trying to use the UHD: USRP source block in the environment with my usrp b200mini but it does not show up.

How do I verify this?
What do I need to put in the device address?

-> uhd_find_devices and uhd_usrp_probe are able to load the image and the device correctly.

Thanks in advance.

You mean the block doesn't show up in Gnu Radio?

If so, that means your local instance of Gnu Radio was built without UHD support.  How was it built?



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