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Today's Topics:
1. Implementation OFDM Error (ZaInzAiN Jj)
2. Re: Implementation OFDM Error (Josh Blum)
3. ADF4360 spi interface can not work (Page Jack)
----------------------------------------------------------------------
Message: 1
Date: Wed, 30 Jan 2013 02:14:53 +0800 (SGT)
From: ZaInzAiN Jj <[email protected]>
To: "[email protected]" <[email protected]>
Subject: [USRP-users] Implementation OFDM Error
Message-ID:
<[email protected]>
Content-Type: text/plain; charset="iso-8859-1"
I use ofdm_example.tar.gz
I run
?./benchmark_ofdm_tx_new.py -f 2422M --tx-amplitude=26214 -v
?but there are error as below
linux; GNU C++ version 4.6.3; Boost_104601; UHD_003.005.000-0-unknown
OFDM Modulator:
Modulation Type: bpsk
FFT length:????? 512
Occupied Tones:? 200
CP length:?????? 128
Tx amplitude???? 1
samples/symbol:??? 2
-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes
UHD Warning:
??? The recv buffer could not be resized sufficiently.
??? Target sock buff size: 50000000 bytes.
??? Actual sock buff size: 131071 bytes.
??? See the transport application notes on buffer resizing.
??? Please run: sudo sysctl -w net.core.rmem_max=50000000
UHD Warning:
??? The recv buffer could not be resized sufficiently.
??? Target sock buff size: 50000000 bytes.
??? Actual sock buff size: 131071 bytes.
??? See the transport application notes on buffer resizing.
??? Please run: sudo sysctl -w net.core.rmem_max=50000000
UHD Warning:
??? The send buffer could not be resized sufficiently.
??? Target sock buff size: 1048576 bytes.
??? Actual sock buff size: 131071 bytes.
??? See the transport application notes on buffer resizing.
??? Please run: sudo sysctl -w net.core.wmem_max=1048576
Traceback (most recent call last):
? File "./benchmark_ofdm_tx_new.py", line 115, in <module>
??? main()
? File "./benchmark_ofdm_tx_new.py", line 79, in main
??? tb = my_top_block(options)
? File "./benchmark_ofdm_tx_new.py", line 40, in __init__
??? self.txpath = usrp_transmit_path.usrp_transmit_path(options)
? File
"/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/usrp_transmit_path.py",
line 61, in __init__
??? self._setup_sink(options)
? File
"/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/usrp_transmit_path.py",
line 66, in _setup_sink
??? self.sink = usrp_options.create_usrp_sink(options)
? File
"/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/usrp_options.py",
line 125, in create_usrp_sink
??? gain=options.tx_gain,
? File
"/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/generic_usrp.py",
line 233, in __init__
??? _generic_usrp_base.__init__(self, **kwargs)
? File
"/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/generic_usrp.py",
line 75, in __init__
??? self.set_gain(gain)
? File
"/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/generic_usrp.py",
line 102, in set_gain
??? r = self.gain_range()
? File
"/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/generic_usrp.py",
line 116, in gain_range
??? r = [tmp.min, tmp.max]
AttributeError: 'meta_range_t' object has no attribute 'min'
What can I do to solve it?
Thanks,
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Message: 2
Date: Tue, 29 Jan 2013 22:45:38 -0600
From: Josh Blum <[email protected]>
To: [email protected]
Subject: Re: [USRP-users] Implementation OFDM Error
Message-ID: <[email protected]>
Content-Type: text/plain; charset=ISO-8859-1
On 01/29/2013 12:14 PM, ZaInzAiN Jj wrote:
> I use ofdm_example.tar.gz
> I run
> ./benchmark_ofdm_tx_new.py -f 2422M --tx-amplitude=26214 -v
> but there are error as below
> linux; GNU C++ version 4.6.3; Boost_104601; UHD_003.005.000-0-unknown
>
>
> OFDM Modulator:
> Modulation Type: bpsk
> FFT length: 512
> Occupied Tones: 200
> CP length: 128
> Tx amplitude 1
> samples/symbol: 2
> -- Opening a USRP2/N-Series device...
> -- Current recv frame size: 1472 bytes
> -- Current send frame size: 1472 bytes
>
> UHD Warning:
> The recv buffer could not be resized sufficiently.
> Target sock buff size: 50000000 bytes.
> Actual sock buff size: 131071 bytes.
> See the transport application notes on buffer resizing.
> Please run: sudo sysctl -w net.core.rmem_max=50000000
>
> UHD Warning:
> The recv buffer could not be resized sufficiently.
> Target sock buff size: 50000000 bytes.
> Actual sock buff size: 131071 bytes.
> See the transport application notes on buffer resizing.
> Please run: sudo sysctl -w net.core.rmem_max=50000000
>
> UHD Warning:
> The send buffer could not be resized sufficiently.
> Target sock buff size: 1048576 bytes.
> Actual sock buff size: 131071 bytes.
> See the transport application notes on buffer resizing.
> Please run: sudo sysctl -w net.core.wmem_max=1048576
> Traceback (most recent call last):
> File "./benchmark_ofdm_tx_new.py", line 115, in <module>
> main()
> File "./benchmark_ofdm_tx_new.py", line 79, in main
> tb = my_top_block(options)
> File "./benchmark_ofdm_tx_new.py", line 40, in __init__
> self.txpath = usrp_transmit_path.usrp_transmit_path(options)
> File
> "/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/usrp_transmit_path.py",
> line 61, in __init__
> self._setup_sink(options)
> File
> "/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/usrp_transmit_path.py",
> line 66, in _setup_sink
> self.sink = usrp_options.create_usrp_sink(options)
> File
> "/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/usrp_options.py",
> line 125, in create_usrp_sink
> gain=options.tx_gain,
> File
> "/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/generic_usrp.py",
> line 233, in __init__
> _generic_usrp_base.__init__(self, **kwargs)
> File
> "/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/generic_usrp.py",
> line 75, in __init__
> self.set_gain(gain)
> File
> "/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/generic_usrp.py",
> line 102, in set_gain
> r = self.gain_range()
> File
> "/usr/local/src/gnuradio-3.4.2/gnuradio-examples/python/ofdm/ofdm_example/generic_usrp.py",
> line 116, in gain_range
> r = [tmp.min, tmp.max]
> AttributeError: 'meta_range_t' object has no attribute 'min'
> What can I do to solve it?
>
> Thanks,
>
>
I believe the call should be .start() or .stop() for the metarange. It
was min/max on a very old version of uhd and I think this python script
did not get updated on this gnuradio release.
I recommend using a newer version of gnuradio (we are up to 3.6.4 now)
or you might modify the python file to use the start/stop methods.
-josh
>
> _______________________________________________
> USRP-users mailing list
> [email protected]
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
------------------------------
Message: 3
Date: Wed, 30 Jan 2013 15:03:33 +0800
From: Page Jack <[email protected]>
To: [email protected]
Subject: [USRP-users] ADF4360 spi interface can not work
Message-ID:
<CAMeG1VJ3Fv0Hhtv=vrewp1gxusgw-o6ztrzdrc-m+zn71tr...@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Hi list,
For poor performance of rfx1800 I make a daughter board for my needs. I
swear the board is only used in my product.
The pll part is exactly the same with rfx1800, but the ADF4360 spi can not
work properly with mother board. when I connect
the board to mother board the frequency tuning can not work, the ADF4360 do
not lock. but if I use a mcu board connect to
the daughter board and set the ADF4360. ADF4360 can lock. So it seems my
daughter board do not fit usrp mother board well
So ettus can you provide me some hint with making daughter board for usrp.
I can provide schematic and pcb layout of my board.
Regards!
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