Hi all
Is it possible to disable the automatic DC offset removal control loop in
the FPGA to measure DC? In old posts I found the function
set_dc_offset_cl_enable. But if I try that, this function can not be
found.
I use a USRP N210 with a LFRX board.
my code:
.
self.uhd_usrp_source_0 =
Hi folks,
For Ruxcon 2011 http://www.ruxcon.org.au/ I gave a presentation
http://www.ruxcon.org.au/2011-talks/an-introduction-to-software-defined-rad
io at the weekend covering some of the neat things you can do with SDR. In
particular, I spoke about some of my recent projects that employ
If I build and install the gnuradio based on your next branch, do we still
need use import grblock in the application code?
No, the old module grblock is gone, the work is now integrated into
gnuradio.gr. Did you see the examples here:
On Wed, Nov 23, 2011 at 8:16 AM, Balint Seeber balint...@gmail.com wrote:
Hi folks,
** **
For Ruxcon 2011 http://www.ruxcon.org.au/ I gave a
presentationhttp://www.ruxcon.org.au/2011-talks/an-introduction-to-software-defined-radioat
the weekend covering some of the neat things you
Dear all,
I am using the mrc implemented in gnuradio but my performance does not
improve compared with the case 1TX-1RX.
The parameters and devices are the same in both cases.
Do you have any hint?
Regards,
Vanessa
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Discuss-gnuradio mailing list
Hi,
I have the latest gnuradio release and I think the phase error calculation
in gr_pll_carriertracking.cc might be wrong.
In Line 107 the phase error is calculated as,
error = phase_detector(iptr[i],d_phase);
whereas, I think it should be as shown below as the phase error is
calculated from
On Wed, Nov 23, 2011 at 11:08 AM, Vanessa Gardellin
vanessa.gardel...@iit.cnr.it wrote:
Dear all,
I am using the mrc implemented in gnuradio but my performance does not
improve compared with the case 1TX-1RX.
The parameters and devices are the same in both cases.
Do you have any hint?
On 11/23/2011 03:00 AM, Michael Höin wrote:
Hi all
Is it possible to disable the automatic DC offset removal control loop in
the FPGA to measure DC? In old posts I found the function
set_dc_offset_cl_enable. But if I try that, this function can not be
found.
I use a USRP N210 with a
On Tue, Nov 22, 2011 at 10:21 PM, Matt Mills mmi...@2bn.net wrote:
On Tue, Nov 22, 2011 at 11:28 AM, Philip Balister phi...@balister.orgwrote:
You can use the single threaded scheduler by setting an environment
variable:
export GR_SCHEDULER=STS
Gave this a shot; app runs for a while
On Wed, Nov 23, 2011 at 10:12 AM, Marcus M gnu.f...@gmail.com wrote:
Hi,
I have the latest gnuradio release and I think the phase error calculation
in gr_pll_carriertracking.cc might be wrong.
In Line 107 the phase error is calculated as,
error = phase_detector(iptr[i],d_phase);
whereas,
For the boost issue, unitl now, I think the most likely cause is due to
incorrect installation of my boost. I manually compiled a boost 1.47 and
copy the related lib files to the /usr/local/lib and /usr/lib. But the
ubunut 11.10 could have already built-in boost of the other older version.
If so,
Hello All,
I am trying to measure packet error rates for different modulation schemes
using benchmark_tx and benchmark_rx codes. I run my codes on XCVR2450 USRP2
dughterboard and I am using the UHD_003_002_001 image (That image was
downloaded on June, 2011 from the website, I believe). Now, I am
Well, I am counting the number of received, lost and wrong packets.
Each packet is 1500 Bytes + header.
I will investigate better the problem. I sent this message to know if
there was any particular parameter that could affect the performance.
How did you compute the BER? So that I can do the
Dear all,
I used USRP N200 with LFRX +UHD to design a receiver, which works well to
continuously receive data. I am trying to control the received data streaming
using PPS to trigger received data storing, which is storing the received data
into a data file for 1ms after receiver detecting
Dear all,
I am using USRP N200 with LFRX +UHD to design a receiver, which works fine to
continuously receive data. I need to use PPS signal to trigger the received
data storing only for 1ms every second after detecting the edge of PPS signal
every second.
I tried the approach introduced in
On 11/23/2011 01:52 PM, Yan Nie wrote:
Dear all,
I am using USRP N200 with LFRX +UHD to design a receiver, which works
fine to continuously receive data. I need to use PPS signal to
trigger the received data storing only for 1ms every second after
detecting the edge of PPS signal every
When you say PPS, do you mean pulse per second or are you trying to
use the PPS input as a generic triggering system? If the second case,
you can do this, but my advice will be different.
1. I am wondering how to fill meta-data in Python if device.recv() is
not swigged? I need to use the PPS
Hello,
I've been following the changes Josh is making to the GR messaging system.
I am not sure that a gr_tag is a good fit for a generic message. For
example, the 'offset' may not be relevant to many messages.
We've been using tags very extensively in our designs and they are great
but
Hello,
I've been following the changes Josh is making to the GR messaging system.
I am not sure that a gr_tag is a good fit for a generic message. For
example, the 'offset' may not be relevant to many messages.
We've been using tags very extensively in our designs and they are great
but
On 11/23/2011 06:11 PM, Eugene Grayver wrote:
Hello,
I've been following the changes Josh is making to the GR messaging system.
I am not sure that a gr_tag is a good fit for a generic message. For
example, the 'offset' may not be relevant to many messages.
Well, so basically I
Hello everyone：
You see there are 63 registers in AD9862, which are configured by SPI. It
seems in usrp_stand.cc and usrp_basic.cc there are codes about how to write and
read AD9862 registers, but I still have not yet found the exact values written
into all the 63 AD9862 registers.
Hi,
In gnuradio, they use Pseudo noise sequence generated from 15 bits LFSR
(sequence in packet_utils.py). Now I'm implementing the whitening in hardware.
I like to know the configuration of that 15 bits LFSR?
PN
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Discuss-gnuradio mailing list
I installed the Gnuradio+UHD+GRC on my ubuntu this Oct, and it is noticed
that there is a directory usrpm in
the /usr/local/lib/python2.7/dist-packages/.
Today, I install all the Gnuradio+UHD on a new ubuntu (11.10) PC, just
using the script from http://www.sbrac.org/files/build-gnuradio and then
It appears UHD does not like to be watched; reproducibly if I run with GDB
attached, UHD eventually stops sending data to the upstream blocks and my
screen fills up with:
thread[single-threaded-scheduler]: RuntimeError: Control channel send error
thread[single-threaded-scheduler]: RuntimeError:
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