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Today's Topics:
1. Re: Gen 2 RFID in gnuradio (Nick Foster)
2. Heap(memory allocation) errors while building
rx_samples_to_file utility in windows (Chomal, Sunil)
3. Re: Heap(memory allocation) errors while building
rx_samples_to_file utility in windows (Josh Blum)
4. WBX's specs (Feng Andrew Ge)
----------------------------------------------------------------------
Message: 1
Date: Thu, 10 Mar 2011 10:13:17 -0800
From: Nick Foster <[email protected]>
To: Vijay Pillai <[email protected]>
Cc: [email protected]
Subject: Re: [USRP-users] Gen 2 RFID in gnuradio
Message-ID: <1299780797.24655.42.camel@crapshoot>
Content-Type: text/plain; charset="UTF-8"
CGRAN is legit. I'll let George comment on the certificate they're
using, but the site itself is fine.
--n
On Wed, 2011-03-09 at 22:23 -0800, Vijay Pillai wrote:
> I came across the following site that apparently implemented a Gen2
> UHF rfid reader using a USRP. However accessing the website on firefox
> gave me the warning that this is an untrustworthy site or something to
> that effect.
>
> https://www.cgran.org/wiki/Gen2
>
> Does anyone know if this is a legit website?
>
> Best regards,
> -Vijay
>
>
> _______________________________________________
> USRP-users mailing list
> [email protected]
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
------------------------------
Message: 2
Date: Fri, 11 Mar 2011 00:33:24 +0530
From: "Chomal, Sunil" <[email protected]>
To: "[email protected]" <[email protected]>
Subject: [USRP-users] Heap(memory allocation) errors while building
rx_samples_to_file utility in windows
Message-ID:
<[email protected]>
Content-Type: text/plain; charset="us-ascii"
Hi,
Till now I was using the rx_samples_to_file.exe which I got from the binary
packages from http://www.joshknows.com/gnuradio_port for collecting data from
USRP N210.(I could not build the gnu radio successfully for windows:()
Now I am trying to change the rx_samples_to_file utility to enable continuous
streaming of data out of usrp N210.
In the process ,I am trying to first re-generate the rx_samples_to_file.exe
from the source file.
I am using the uhd dll and uhd lib,I got from the binary package. Boost dlls I
downloaded separately.
I was able to generate the exe, but I am facing some, Heap(memory allocation)
issue while running the exe.
I am using the Visual Studio10 for my work.
Since I am very new to using Visual Studio and working with dlls , I am
supposing I am making some silly errors!!.
Can anybody give any suggestions???
'uhd-10.exe': Loaded 'D:\Program Files\uhd\uhd-10\Debug\uhd-10.exe', Symbols
loaded.
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\ntdll.dll', Cannot find or open the
PDB file
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\kernel32.dll', Cannot find or open
the PDB file
'uhd-10.exe': Loaded 'D:\Program Files\uhd\lib\uhd.dll', Binary was not built
with debug information.
'uhd-10.exe': Loaded 'D:\Program
Files\boost\boost_1_44\lib\boost_date_time-vc100-mt-1_44.dll', Binary was not
built with debug information.
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\msvcp100.dll', Symbols loaded.
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\msvcr100.dll', Symbols loaded.
'uhd-10.exe': Loaded 'D:\Program
Files\boost\boost_1_44\lib\boost_filesystem-vc100-mt-1_44.dll', Binary was not
built with debug information.
'uhd-10.exe': Loaded 'D:\Program
Files\boost\boost_1_44\lib\boost_system-vc100-mt-1_44.dll', Binary was not
built with debug information.
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\advapi32.dll', Cannot find or open
the PDB file
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\rpcrt4.dll', Cannot find or open the
PDB file
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\secur32.dll', Cannot find or open the
PDB file
'uhd-10.exe': Loaded 'D:\Program
Files\boost\boost_1_44\lib\boost_program_options-vc100-mt-1_44.dll', Binary was
not built with debug information.
'uhd-10.exe': Loaded 'D:\Program
Files\boost\boost_1_44\lib\boost_regex-vc100-mt-1_44.dll', Binary was not built
with debug information.
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\user32.dll', Cannot find or open the
PDB file
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\gdi32.dll', Cannot find or open the
PDB file
'uhd-10.exe': Loaded 'D:\Program
Files\boost\boost_1_44\lib\boost_thread-vc100-mt-1_44.dll', Binary was not
built with debug information.
'uhd-10.exe': Loaded 'D:\Program Files\uhd\lib\libusb-1.0.dll', Cannot find or
open the PDB file
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\msvcrt.dll', Cannot find or open the
PDB file
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\ws2_32.dll', Cannot find or open the
PDB file
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\ws2help.dll', Cannot find or open the
PDB file
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\msvcp100d.dll', Symbols loaded.
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\msvcr100d.dll', Symbols loaded.
'uhd-10.exe': Loaded 'C:\WINDOWS\SYSTEM32\imm32.dll', Cannot find or open the
PDB file
HEAP[uhd-10.exe]: Invalid allocation size - CCCCCC20 (exceeded 7ffdefff)
First-chance exception at 0x7c812afb in uhd-10.exe: Microsoft C++ exception:
std::bad_alloc at memory location 0x0012e700..
HEAP[uhd-10.exe]: Invalid allocation size - CCCCCC16 (exceeded 7ffdefff)
First-chance exception at 0x7c812afb in uhd-10.exe: Microsoft C++ exception:
std::bad_alloc at memory location 0x0012e0a4..
First-chance exception at 0x7c812afb in uhd-10.exe: Microsoft C++ exception:
[rethrow] at memory location 0x00000000..
The program '[40844] uhd-10.exe: Native' has exited with code -1 (0xffffffff).
Regards
Sunil
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Message: 3
Date: Thu, 10 Mar 2011 11:17:56 -0800
From: Josh Blum <[email protected]>
To: [email protected]
Subject: Re: [USRP-users] Heap(memory allocation) errors while
building rx_samples_to_file utility in windows
Message-ID: <[email protected]>
Content-Type: text/plain; charset=ISO-8859-1
On 03/10/2011 11:03 AM, Chomal, Sunil wrote:
> Hi, Till now I was using the rx_samples_to_file.exe which I got from
> the binary packages from http://www.joshknows.com/gnuradio_port for
> collecting data from USRP N210.(I could not build the gnu radio
> successfully for windows:()
>
What was the error?
> Now I am trying to change the rx_samples_to_file utility to enable
> continuous streaming of data out of usrp N210. In the process ,I am
> trying to first re-generate the rx_samples_to_file.exe from the
> source file. I am using the uhd dll and uhd lib,I got from the
> binary package. Boost dlls I downloaded separately. I was able to
> generate the exe, but I am facing some, Heap(memory allocation) issue
> while running the exe. I am using the Visual Studio10 for my work.
>
The prebuilt stuff is somewhat out of date. Its possible there is an ABI
difference between the lib and headers used when building the app.
Try to rebuilt uhd from scratch and link your app against the dll/lib
you just built. Also, make sure everything is built in Release mode.
-Josh
------------------------------
Message: 4
Date: Thu, 10 Mar 2011 14:42:19 -0500
From: Feng Andrew Ge <[email protected]>
To: [email protected]
Cc: [email protected]
Subject: [USRP-users] WBX's specs
Message-ID: <[email protected]>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
To folks in Ettus Research:
I need to fill some forms which ask for specs of WBX. I have tried my
best searing online, but failed. Would you please spend some time
telling me WBX's following specs?
At the transmitter side:
(1) what's its output device, e.g., ceramic diode, transistor, or
something else?
(2) what's the relative level in dB of the highest powered harmonic
above the 3rd?
(3) What's the spurious level, e.g, the *maximum* *value* of *spurious*
*emission* (in *dB*) *relative* to the *fundamental*, which occurs
outside the --60 dBc point on the transmitter *fundamental* *emission*
spectrum but does not occur on a harmonic of the *fundamental* frequency?
At the receiver side:
(1) what's the tuning method, by synthesizer?
(2) What are specs of the IF band filter on the daughterboard (or mother
board)?
(3) what is the RF pre-selection type, e.g., tunable cavity?
(4) What are the typical IF operating frequency? Are they discrete
values or continuous? It seems that USRP1 tunes to discrete IF frequencies.
(5) Is the oscillator tuned above or below the tuned (or specified)
frequency?
(6) what's the sensitivity in dBm? Would you specifiy criteria used,
e.g., 12dB SINAD?
(7) Is there any image rejection on WBX?
(8) Is there any spurious rejection? If so, what's the value in dB?
Thanks very much,
Andrew
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