[Discuss-gnuradio] PCI Express SDR Cards and GNU Radio

[Manolis Surligas]

Hello guys,

I am searching for PCI Express cards that can (or possibly can) work 
together with GNU Radio. So far I have found this 
http://www.pervices.com/shop/index.php?route=product/product&product_id=48 
and they provide a block for the GRC to communicate with the card.


Has anyone played with this or a similar card?

Thanks in advance!

--
Code is the Law!


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[Discuss-gnuradio] DVB-T signals using GNU radio companion

[umer.rabbani]

Hi,
I have to generate DVB-T signal using gnu radio companion, is there any block 
available for that??
Umer
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Re: [Discuss-gnuradio] Ubuntu 11.10 GNURadio Companion not installing help [SOLVED]

[Jared Harvey]

Hello Alex,

AD> Just  noticed  that  the problem library is in
AD> ~/.local/.  I've  never  seen  that before, it
AD> seems to imply that you've got numpy installed
AD> in  your  home  directory.  Is that right? You
AD> could trymoving~/.local/lib/to
AD> ~/.local/lib-ignoreme/  and  see if that fixes
AD> it. Might break a whole load of other stuff in
AD> the process too, of course.

I  once  had  activestate python installed on this
machine.  It  would  appear  that  was a lingering
issue with it's removal. I renamed the ~/local/lib
such  that  any  links  would  be  broken.  It now
compiles  just  fine  and  I  opened  GRC,  so I'm
listing  this  as SOLVED. Thanks very much for the
help.

Best regards.

.. ..-. / -.-- --- ..- / .-. . .- -.. /  -  .. ...   
.-.. . - ... /  .- ...- . / .- / -... . . .-. 

 Jared Harvey   Operator KB1GTT

e-mail m...@jaredharvey.com
Web page http://jaredharvey.com


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Re: [Discuss-gnuradio] PCI Express SDR Cards and GNU Radio

[Ryan Connelly]

There are a few companies that do business in data acquisition and DSP
hardware (slap a RF front end and antenna in front of these and you
got a SDR) that offer many, many form factor (i.e. PCIe) for all kinds
of applications. Unfortunately they are not playing well with the GNU
Radio environment as far as I know. The supporting software
environment will quickly exceed any budget you have in mind.

Here is the biggest ones I have in mind if you are still interested:
http://www.innovative-dsp.com/
http://www.pentek.com/
http://www.spectrumsignal.com/

Processing wise, they are all using the FPGA much more than your
typical Ettus USRP. This involves Simulink (3000$), HDL Coder (1$)
and Xilinx System Generator (5000$) packages that will set you back
quite a bit but allow rapid implementation of all your DSP needs
(effectively replacing GNU Radio) right on the FPGA. Aside from that
on the software side each company offers their own custom supporting
software libraries and drivers although I am sure you can hook to
MATLAB and Simulink too somehow.

So I don't think this is what you need if you're looking for a cost
efficient platform that supports free software but there is indeed
many PCIe SDR platforms that exist out there worth mentioning. Your
best bet is that maybe someday Ettus Research will have a product with
PCIe form factor.. I wouldn't count on that anytime soon though.

On Wed, Jul 4, 2012 at 3:55 AM, Manolis Surligas
 wrote:
> Hello guys,
>
> I am searching for PCI Express cards that can (or possibly can) work
> together with GNU Radio. So far I have found this
> http://www.pervices.com/shop/index.php?route=product/product&product_id=48
> and they provide a block for the GRC to communicate with the card.
>
> Has anyone played with this or a similar card?
>
> Thanks in advance!
>
> --
> Code is the Law!
>
>
> ___
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Re: [Discuss-gnuradio] building gnuradio - those annoying swig doc errors

[Tom Rondeau]

On Tue, Jul 3, 2012 at 9:34 PM, Johnathan Corgan
 wrote:
> On Tue, Jul 3, 2012 at 3:42 PM, Johnathan Corgan
>  wrote:
>>
>> On Tue, Jul 3, 2012 at 3:31 PM, Josh Blum  wrote:
>>
>> I don't think the .so issue is caused by the swig fixes.  Doing 'make -j'
>> on master fails the same way.
>>
>> But the swig doc issues that you were trying to fix do indeed appear to
>> have been fixed.
>
>
> Both the above issues have been fixed and pushed to maint->master->next.
>
> Johnathan

Thanks for fixing this, guys!

Tom

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Re: [Discuss-gnuradio] PCI Express SDR Cards and GNU Radio

[Tom Rondeau]

On Wed, Jul 4, 2012 at 3:55 AM, Manolis Surligas
 wrote:
> Hello guys,
>
> I am searching for PCI Express cards that can (or possibly can) work
> together with GNU Radio. So far I have found this
> http://www.pervices.com/shop/index.php?route=product/product&product_id=48
> and they provide a block for the GRC to communicate with the card.
>
> Has anyone played with this or a similar card?
>
> Thanks in advance!

I only know of the Per Vices product but have not gotten my hands on
it. But I'm really happy that they have produced their own GNU Radio
interface for it already.

My biggest question is if it's well-shielded enough for the noisy RF
environment inside a computer chassis.

Tom

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[Discuss-gnuradio] How to write own blocks for grc

[umer.rabbani]

Hello All,
Can you please guide me how can I start writing my own blocks for GRC.

Regards,
Umer Rabbani | Researcher
[cid:image001.jpg@01CD59F8.CC600A20][cid:image002.gif@01CD59F8.CC600A20]
Polaris House, PP129 B29, Adastral Park, Ipswich, UK
Postal Code IP5 3RE
' 01473645887| 7 - 0743 57 67 821

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[Discuss-gnuradio] GRC XML Problem: Variable number of vector outputs with different vlen

[Felix Wunsch]

Hi all!

I have coded a block that basically takes an input vector of length N 
and divides it up into M smaller vectors with different vector length 
(for example: input vector of lenght 10 and 3 output vectors of length 
2, 3 and 5). The idea is to have a std::vector as parameter whose 
size equals the number of output ports and whose elements describe the 
length of each vector.


Is there a way to make this work in GRC without creating multiple .xml 
files for different configurations?


Best regards,
Felix Wunsch

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Re: [Discuss-gnuradio] DVB-T signals using GNU radio companion

[sreeraj r]

http://www.ruby-forum.com/topic/1440970
http://www.oz9aec.net/index.php/gnu-radio/gnu-radio-blog/361-simple-dvb-with-gstreamer-and-gnu-radio

https://github.com/csete/gnuradio-dvb

 
---
Regards
Sreeraj Rajendran
http://home.iitb.ac.in/~rsreeraj




 From: "umer.rabb...@bt.com" 
To: isabella.nardacchi...@gmail.com; discuss-gnuradio@gnu.org 
Sent: Wednesday, 4 July 2012 3:42 PM
Subject: [Discuss-gnuradio] DVB-T signals using GNU radio companion
 

 
Hi,
I have to generate DVB-T signal using gnu radio companion, is there any block 
available for that??
Umer
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Re: [Discuss-gnuradio] How to write own blocks for grc

[sreeraj r]

Its not that hard to find.http://gnuradio.org/redmine/projects/gnuradio/wiki/GNURadioCompanion#Adding-Custom-Blocks ---RegardsSreeraj Rajendranhttp://home.iitb.ac.in/~rsreerajFrom: "umer.rabb...@bt.com"  To: discuss-gnuradio@gnu.org  Sent: Wednesday, 4 July 2012 7:52 PM Subject: [Discuss-gnuradio] How to write own blocks for grc   Hello All,Can you please guide me how can I start writing my own blocks for GRC.  Regards, Umer Rabbani | ResearcherPolaris House, PP129 B29, Adastral Park, Ipswich, UKPostal Code IP5 3RE' 01473645887| 7 - 0743 57 67 821  ___Discuss-gnuradio mailing listDiscuss-gnuradio@gnu.orghttps://lists.gnu.org/mailman/listinfo/discuss-gnuradio___
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[Discuss-gnuradio] USRP B100 10 MHz specs

[Vincenzo Pellegrini]

Hi everybody,

can anybody indicate if ref signal specs for the USRP B100 are to be
considered the same as those for N210 as specified here?
http://files.ettus.com/uhd_docs/manual/html/usrp2.html#ref-clock-10mhz

...or do look more like those for USRP2 indicated at the very same link.


thank you and regards

vince
-- 
Vincenzo Pellegrini
http://www.youtube.com/user/wwvince1

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[Discuss-gnuradio] how to make a spectrum sensing usrp2 + rfx900 ?

[Julio Hector Aguilar Renteria]

how to make a spectrum sensing usrp2 + rfx900
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[Discuss-gnuradio] Low-Cost USB Capture Hardware

[Colin O'Flynn]

Hello,

 

I wondered what interest there is in HW which can perform capture, but is
more limited than the USPR2 type devices. For a different project I made a
high-speed ADC interface, which runs over USB. It's one channel, 100 MSPS.

 

I won't attach images so you can see details at
http://www.newae.com/tiki-index.php?page=ProjectOpenADC .

 

It does not do real-time streaming, but captures a short number of samples
(e.g.: that board has LPDDR memory which can fit ~32M samples), and
downloads them slowly over USB. 

 

The site has an example of measuring the roll-off due to front-end - note
this graph alone is fairly misleading, as the SFDR limit is a lot lower
(~300 MHz analog BW). If you do filtering after digitizing & know where the
spurs are you can get a pretty high analog BW. have to upload full details
of the spurs. There is also an adjustable amplifier which lets you crank up
to ~50dB of gain on any incoming signals (you can go higher but noise
becomes an issue, need shielding) but with a much smaller analog BW.

 

If there was interest I could look into getting a batch of PCBs made. The
ADC + Amp chip are the main expense (~$15 each), I would imagine assembled
cost would be in the $60-$100 range. It's all open hardware so I'm not
exactly getting rich here J

 

Regards,

 

  -Colin

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Re: [Discuss-gnuradio] uhd help

[Samuel Ibarra]

Hello Josh,

I have looked over the dboard iface file, but I am still a little confused.
I am able to use swig to call the dboard_iface() within my python code,
but I am not sure about what other functions I need in order to control
those pins. I saw that within the dboard_xcvr2450.cpp file they call
set_pin_ctrl, set_gpio_ddr, and set_atr_reg. Do I also need to call all
three? I am also unsure about the inputs that go into these functions.
Thank you for help and time.

Sam

On Mon, Jul 2, 2012 at 6:42 PM, Josh Blum  wrote:

>
>
> On 07/02/2012 06:34 PM, sibar002 wrote:
> >
> > Hello,
> >
> > I would like to be able to control pins 5, 7, 9,... , and 35 on the J401
> > component on the N210 (Pins G4, F5, H6, ..., and K6 on the FPGA). From
> the
> > Basic_Tx/Rx daughterbaord schematic, I was able to see that some of these
> > pins are not really used on the daughterboard. I am working on
> implementing
> > a MAC protocol that will be using a number directional antennas to send
> our
> > information. I wanted to use these pins in order to select the antenna
> > direction needed for the communication. I have followed the code all the
> way
> > to the multi_usrp.cpp file. I have also looked into the db_xcvr2450.cpp
> file
> > to see how this pins are controlled. I am having trouble figuring out
> which
> > lines of code I need in the db_basic_lf.cpp in order to control these
> pins
> > in the basic daughterboards. I would greatly appreciate any help or
> advice.
> > Thank you for your time and help.
> >
> > Sam
> >
>
> You may want to see the dboard iface:
>
> http://files.ettus.com/uhd_docs/doxygen/html/classuhd_1_1usrp_1_1multi__usrp.html#a3299d8f77f1d823c762e36438bac509e
>
> You can access the same GPIO as the daughterboard code itself. Also, the
> swig magic should be there so you can use it from python.
>
> -josh
>
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Re: [Discuss-gnuradio] uhd help

[Josh Blum]

On 07/04/2012 11:38 AM, Samuel Ibarra wrote:
> Hello Josh,
> 
> I have looked over the dboard iface file, but I am still a little confused.
> I am able to use swig to call the dboard_iface() within my python code,
> but I am not sure about what other functions I need in order to control
> those pins. I saw that within the dboard_xcvr2450.cpp file they call
> set_pin_ctrl, set_gpio_ddr, and set_atr_reg. Do I also need to call all
> three? I am also unsure about the inputs that go into these functions.
> Thank you for help and time.
> 

Well, setting output and data direction is a lot like any GPIO.

Whats different here is ATR. When you set a pin to be under ATR control,
the pin can be transitioned when the FPGA changes state (rxing, idle,
txing, full duplex). Setting ATR state tells the pins what the output
should be under each FPGA state. This makes switching automatic.

-josh

> Sam
> 
> On Mon, Jul 2, 2012 at 6:42 PM, Josh Blum  wrote:
> 
>>
>>
>> On 07/02/2012 06:34 PM, sibar002 wrote:
>>>
>>> Hello,
>>>
>>> I would like to be able to control pins 5, 7, 9,... , and 35 on the J401
>>> component on the N210 (Pins G4, F5, H6, ..., and K6 on the FPGA). From
>> the
>>> Basic_Tx/Rx daughterbaord schematic, I was able to see that some of these
>>> pins are not really used on the daughterboard. I am working on
>> implementing
>>> a MAC protocol that will be using a number directional antennas to send
>> our
>>> information. I wanted to use these pins in order to select the antenna
>>> direction needed for the communication. I have followed the code all the
>> way
>>> to the multi_usrp.cpp file. I have also looked into the db_xcvr2450.cpp
>> file
>>> to see how this pins are controlled. I am having trouble figuring out
>> which
>>> lines of code I need in the db_basic_lf.cpp in order to control these
>> pins
>>> in the basic daughterboards. I would greatly appreciate any help or
>> advice.
>>> Thank you for your time and help.
>>>
>>> Sam
>>>
>>
>> You may want to see the dboard iface:
>>
>> http://files.ettus.com/uhd_docs/doxygen/html/classuhd_1_1usrp_1_1multi__usrp.html#a3299d8f77f1d823c762e36438bac509e
>>
>> You can access the same GPIO as the daughterboard code itself. Also, the
>> swig magic should be there so you can use it from python.
>>
>> -josh
>>
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>>
> 


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