Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-03-05 Thread Marcus D. Leech
Sorry, I dont know anything about the burst tagger. But I can tell you about the stream tags that I guess burst tagger is producing. Basically in the gnuradio framework, arbitrary metadata can be associated with a sample, aka sample tags. When the scheduler calls work in the uhd sink block, wor

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-03-05 Thread Josh Blum
On 03/01/2012 11:14 AM, George Nychis wrote: > A quick question on how the trigger works in UHD. I have some basic code > integrated with the help of your suggestions. > > Burst tagger port 0 is the raw complex sample stream. Burst tagger port 1 > is the trigger. Let's say the raw complex sam

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-03-01 Thread George Nychis
A quick question on how the trigger works in UHD. I have some basic code integrated with the help of your suggestions. Burst tagger port 0 is the raw complex sample stream. Burst tagger port 1 is the trigger. Let's say the raw complex sample stream has an outgoing packet. I'm assume that I cha

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-29 Thread Philip Balister
On 02/28/2012 11:51 PM, George Nychis wrote: > It's be good if you can chime in here, Josh :) > > It seems like this is something that should be fixed about tunnel.py in > future GNU Radio releases for use with UHD. tunnel.py should be burned at the stake :) This flow graph creates more bad pres

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-28 Thread George Nychis
It's be good if you can chime in here, Josh :) It seems like this is something that should be fixed about tunnel.py in future GNU Radio releases for use with UHD. I'm trying to do my fair share of research here and tackle it. If what you say is true, Marcus, the control I need is over the TX chai

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-27 Thread Josh Blum
On 02/27/2012 05:30 PM, George Nychis wrote: > It's be good if you can chime in here, Josh :) > > It seems like this is something that should be fixed about tunnel.py in > future GNU Radio releases for use with UHD. > Like removing it altogether :-) > That is clearly documented as control of

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-27 Thread Marcus D. Leech
On 27/02/12 08:30 PM, George Nychis wrote: > It's be good if you can chime in here, Josh :) > > It seems like this is something that should be fixed about tunnel.py > in future GNU Radio releases for use with UHD. I've attached a skeletal piece of GRC that uses the "Burst Tagger" block with a 10Hz

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-27 Thread George Nychis
It's be good if you can chime in here, Josh :) It seems like this is something that should be fixed about tunnel.py in future GNU Radio releases for use with UHD. I'm trying to do my fair share of research here and tackle it. If what you say is true, Marcus, the control I need is over the TX chai

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-26 Thread Marcus D. Leech
On 02/26/2012 08:54 PM, George Nychis wrote: On Sun, Feb 26, 2012 at 5:01 PM, Marcus D. Leech > wrote: On 02/26/2012 02:29 PM, Apurv Bhartia wrote: Its an XCVR2450, but I do *not* start any 'packet' transmissions. All I do, is to start both the flowgraph

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-26 Thread George Nychis
On Sun, Feb 26, 2012 at 5:01 PM, Marcus D. Leech wrote: > ** > On 02/26/2012 02:29 PM, Apurv Bhartia wrote: > > Its an XCVR2450, but I do *not* start any 'packet' transmissions. All I > do, is to start both the flowgraphs, and just listen for packets. > > In which case, the TX side is running--e

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-26 Thread Marcus D. Leech
On 02/26/2012 02:29 PM, Apurv Bhartia wrote: Its an XCVR2450, but I do *not* start any 'packet' transmissions. All I do, is to start both the flowgraphs, and just listen for packets. In which case, the TX side is running--even if you aren't sending any *data* bits, it's still transmitting, and

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-26 Thread Apurv Bhartia
Its an XCVR2450, but I do *not* start any 'packet' transmissions. All I do, is to start both the flowgraphs, and just listen for packets. On Sun, Feb 26, 2012 at 6:13 AM, Andre Puschmann < andre.puschm...@tu-ilmenau.de> wrote: > On 02/26/2012 10:38 AM, Apurv Bhartia wrote: > > Hi, > > > > I'm ru

Re: [Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-26 Thread Andre Puschmann
On 02/26/2012 10:38 AM, Apurv Bhartia wrote: > Hi, > > I'm running Ubuntu 11.10 + UHD 003.004.000 + USRP2. > > I'm trying to run a transceiver script for OFDM, which has both the tx > and rx flowgraphs (very similar to tunnel.py except the TUN interface). > But, I can't seem to receive anything s

[Discuss-gnuradio] uhd running parallel tx/rx flowgraphs

2012-02-26 Thread Apurv Bhartia
Hi, I'm running Ubuntu 11.10 + UHD 003.004.000 + USRP2. I'm trying to run a transceiver script for OFDM, which has both the tx and rx flowgraphs (very similar to tunnel.py except the TUN interface). But, I can't seem to receive anything successfully in that case. Even the preamble correlation fai