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[Discuss-gnuradio] Companion flow error

From: Nikos Balkanas
Subject: [Discuss-gnuradio] Companion flow error
Date: Wed, 9 Mar 2016 03:58:58 +0200


This is my first attempt at using gnuradio flows with gnuradio-companion. I am trying to run some flow tutorials i have found around.
I use Ubuntu 14.04 x64, with grc 3.7.1, X300 usrp and latest uhd. Using a simple flow of an Osmosdr Source connected to a Baudline Sink I get the following error on execution:

UHD Warning:
The hardware does not support the requested RX sample rate:
Target sample rate: 0.032000 MSps
Actual sample rate: 0.195312 MSps
['baudline', '-stdin', '-record', '-spacebar', 'recordpause', '-samplerate', '32000', '-channels', '2', '-format', 'le32f', '-quadrature']
[Errno 2] No such file or directory
Traceback (most recent call last):
File "/home/nikos/Desktop/top_block.py", line 120, in <module>
tb = top_block()
File "/home/nikos/Desktop/top_block.py", line 87, in __init__
File "/usr/local/lib/python2.7/dist-packages/baz/baudline.py", line 146, in __init__
self.p = subprocess.Popen(baudline_exec, stdin=subprocess.PIPE) # , stdout=subprocess.PIPE, stderr=subprocess.PIPE, bufsize=16384 or -1
File "/usr/lib/python2.7/subprocess.py", line 710, in __init__
errread, errwrite)
File "/usr/lib/python2.7/subprocess.py", line 1327, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory

>>> Done (return code 1)

Attaching top_block.py and Tutorial.grc. Searching mail archives and the web didn't help. Maybe I don't know yet how to ask it correctly:( Appreciate any suggestions.


Attachment: Tutorial.grc
Description: Binary data

Attachment: top_block.py
Description: Binary data

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