Hi all:
I know every block should have it's work or general_work function.And
i know it's used by scheduler.
Now I want to write my c++ code just call work function.Is right to do
it?
If ok,can someone explain how to call work function?
Thanks.
Best
thank you,
In fact, it works on OTG usb port.
Best regards,
Wafa HAJ HMIDA
2014-05-28 17:46 GMT+02:00 Nick Foster bistrom...@gmail.com:
Wafa,
Try using a USB hub for the mouse instead of plugging it directly into the
E100. E100 is picky about USB and doesn't support USB1.1 devices
Problem being is that as soon as the head block signals done, the
flowgraph might come to a halt, effectively breaking the skip head
subgraph;
how many samples are still produced after head is done depends on timing
and buffer size...
I think that's why Mike recommended the M in N, so you only
Hi Pengyu, Activecat!
These are very good considerations!
I just wanted to add, since this comes up rather frequently, that in
digital signal processing like GNU Radio,
there is no factual sampling rate. So if you calculate a signal,
it's frequency can only be measured by the number of samples a
Hi Xianda,
I know every block should have it's work or general_work
function.And i know it's used by scheduler.
Right!
Now I want to write my c++ code just call work function.Is right to
do it?
I hope I understand you correctly:
You want to write a C++ program that calls
On 31 May 2014 11:57, Marcus Müller marcus.muel...@ettus.com wrote:
Hi Xianda,
I know every block should have it's work or general_work
function.And i know it's used by scheduler
For the record, a block that only uses message passing doesn't need a work
function - not that that's
Hi:
Thank you so much.
For example,I write a simple c++ program which can use the
gnuradio/fft/fft.h.But i also want to use
gnuradio/digital/ofdm_cyclic_prefixer.h.
But the ofdm_cyclic_prefixer is a block.It has work function.
I attached my document.
#include fstream
#include vector
#include
Hi:
Thank you so much.
I just want to write c++ code to realize (fft block+OFDM Cyclic Prefixer).
And I attached my code which just realize ifft but the OFDM Cyclic Prefixer
has it's work function.
#include fstream
#include vector
#include gnuradio/gr_complex.h
#include gnuradio/fft/fft.h
Hi Xianda,
I just want to write c++ code to realize (fft block+OFDM Cyclic
Prefixer).
Sorry, I still did not understand. I only understand your C++, so here's
my comments:
The code you posted has really nothing to do with gr::block;
gr::fft:fft_complex is *not* a gr::block, and has no work()!
Hi Xianda,
some of your emails are really hard to read due to your email client
writing non-standard-compliant HTML mail. Could you disable
HTML/multimedia mail?
What I want to do is that read symbols from file and perform fft and insert
cp and then transmit to the usrp.
ok, thanks for
Hi:
Thank you so much for your kindly reply.
Sorry for my poor English.
The reason why i directly write the c++ code is that I want to use the uhd
to control my two usrps send simultaneously.
The aim i want to reach is that read symbol from file and perform ifft and
insert cp
Hi!
The gr-uhd USRP sink can represent multiple USRPs at once.
If you have a recent GNU Radio version, in gnuradio-companion your UHD:
USRP Sink block will have a Documentation tab.
There is an example that specifies two USRP addresses. This will
automatically enable you to transmit the contents
On Sat, May 31, 2014 at 5:37 PM, Marcus Müller marcus.muel...@ettus.com
wrote:
Problem being is that as soon as the head block signals done, the
flowgraph might come to a halt, effectively breaking the skip head
subgraph;
Thanks for highlighting this.
Now I recall that the Head block return
Hi
Thank you so much for your patient instructions.
Yes ,I know the UHD:USRP Sink can specifies two USRP addresses.But the
symbol i try to transmit to the usrp is different.
They may be should in two flow graph.
[file source 1] -- [ (I)FFT ] -- [ cyclic prefixer ] -- [ USRP sink 1]
Hi:br/ Thank you so much.br/ What I want to do is that read
symbols from file and perform fft and insert cp and then transmit to the
usrp.Just as the fft and OFDM Cyclic Prefixer do!br/ The easy way is
use thelt;gnuradio/fft/fft.hgt; and
On Sat, May 31, 2014 at 11:47 PM, Activecat active...@gmail.com wrote:
I've created a sample for you at https://github.com/activecat/gr-test1
You could run the flowgraph found in the examples directory.
Try to change the samp_rate of the flowgraph from 32kHz to different
values (64kHz,
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