# Re: OSX gnuradio/uhd issue

**URL:** <https://www.ruby-forum.com/t/re-osx-gnuradio-uhd-issue/202340>\
**Category:** GNU Radio\
**Created:** [January 27, 2011, 5:07am UTC](https://www.ruby-forum.com/t/re-osx-gnuradio-uhd-issue/202340 "2011-01-27T05:07:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\
**Post date:** [January 27, 2011, 5:07am UTC](https://www.ruby-forum.com/t/re-osx-gnuradio-uhd-issue/202340/1 "2011-01-27T05:07:20Z")

</div>

Oh darn, way to much multitasking, thats my mistake. I did have that  
issue,  
when I deleted the folder and had git recreate it I forgot to checkout  
the  
next branch. I recognized I did this and resolved the issue. Thats when  
I  
get a new error, I must have flipped between to many windows and C&P’d  
the  
wrong error msg

the error Im getting with the next branch, confirmed with the link you  
provided

Mac OS; GNU C++ version 4.2.1 (Apple Inc. build 5664); Boost\_104500;  
UHD\_002.20110126204618.b83454d

> > > gr\_fir\_ccc: using SSE  
> > > gr\_fir\_ccf: using SSE  
> > > len(audio\_taps) = 159  
> > > gr\_fir\_fff: using SSE  
> > > mboard0 MIMO master

Warning:  
The hardware does not support the requested RX sample rate:  
Target sample rate: 0.480000 MSps  
Actual sample rate: 0.480769 MSps  
UHD source block got error code 0x1  
gr\_block\_executor: source \<gr\_block uhd single\_usrp source (20)\>  
produced no  
output. We’re marking it DONE.

> > > Done

uhd\_find\_devices has no problem finding it though

macbook-chris:gnuradio updatelee$ uhd\_find\_devices  
Mac OS; GNU C++ version 4.2.1 (Apple Inc. build 5664); Boost\_104500;  
UHD\_002.20110126204618.b83454d

* * *

## – UHD Device 0

Device Address:  
type: usrp2  
addr: 10.0.1.175  
name:  
serial: E3R10Z1UP

so there is communication.

Im using the latest UHD image on the N210  
[http://www.ettus.com/downloads/uhd\_images/UHD-images-most-recent/UHD-images-002.20110122035832.cd5631f-Linux.tar.gz](http://www.ettus.com/downloads/uhd_images/UHD-images-most-recent/UHD-images-002.20110122035832.cd5631f-Linux.tar.gz)

Chris Lee  
VE6UDL

> > Traceback (most recent call last):  
> > File “rx\_fft.py”, line 145, in   
> > tb = rx\_fft()  
> > File “rx\_fft.py”, line 117, in **init**  
> > self.connect((self.uhd\_single\_usrp\_source, 0), (self.fftsink, 0))  
> > File

“/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/gnuradio/gr/top\_block.py”,

> > line 124, in connect  
> > self.\_connect(points[i-1], points[i])  
> > File

“/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/gnuradio/gr/top\_block.py”,

> > line 129, in \_connect  
> > self.\_tb.connect(src\_block.basic\_block(), src\_port,  
> > AttributeError: ‘uhd\_single\_usrp\_source\_sptr’ object has no attribute  
> > ‘basic\_block’
> 
> You have a partially out of date or multiple installs of gnuradio:
> 
> This is the master branch:

[http://gnuradio.org/cgit/gnuradio.git/tree/gnuradio-core/src/python/gnuradio/gr/top\_block.py#n129](http://gnuradio.org/cgit/gnuradio.git/tree/gnuradio-core/src/python/gnuradio/gr/top_block.py#n129)

> This is the next branch:

[http://gnuradio.org/cgit/gnuradio.git/tree/gnuradio-core/src/python/gnuradio/gr/top\_block.py?h=next#n129](http://gnuradio.org/cgit/gnuradio.git/tree/gnuradio-core/src/python/gnuradio/gr/top_block.py?h=next#n129)

---

<div class="post-metadata">

**Author:** ![update\_lee](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/8e8cbc/32.png) [@update\_lee](https://www.ruby-forum.com/u/update_lee)\
**Post date:** [January 27, 2011, 5:16am UTC](https://www.ruby-forum.com/t/re-osx-gnuradio-uhd-issue/202340/2 "2011-01-27T05:16:09Z")

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> UHD source block got error code 0x1  
> gr\_block\_executor: source \<gr\_block uhd single\_usrp source (20)\> produced no  
> output. We’re marking it DONE.

grr timeout

Can you post the output of

uhd\_usrp\_probe and /share/uhd/examples/rx\_timed\_samples

thanks,  
-josh