Re: [Discuss-gnuradio] multi_file usrp tuning options

2007-06-04 Thread Eng. Firas
Dear Ematlis, I want to draw your attention to this remake: When using std_4rx_0tx.rbf FPGA file, the 4 FPGA DDCs does not have low pass filter (the HBF) and you have to do the low pass filtering by software. Firas, ematlis wrote: > > Ok, great. This simplifies things; I was afraid I was go

[Discuss-gnuradio] make_format and set_format

2007-06-04 Thread Dawei Shen
Hey Guys, I have a question about the make_format(width, shift) and set_format methods of the usrp_standard_rx class. It appears to me "width" is the bit width of IQ samples across the USB bus, but what does "shift" mean here? What has been shifted if let's say (width, shift) = (8, 8)? Also, if I

Re: [Discuss-gnuradio] DAB, RDS, DRM, HDradio and OFDM

2007-06-04 Thread Martin Dvh
Matt Ettus wrote: > Martin Dvh wrote: > >> Hi all, >> Is anybody working on DAB, RDS,DRM, HDradio or OFDM at the moment. > > > Actually, Tom, Eric, George, Thibaud, Bob, and myself are all at > Virginia Tech this week, and we're working on OFDM. We just checked in > some working OFDM code in th

Re: [Discuss-gnuradio] how do I disable this buffer warning?

2007-06-04 Thread Matt Ettus
Chris Stankevitz wrote: Trond Danielsen wrote: I also get a lot of messages like this, and I suspect it is the curse for doing vector processing on vectors of length other than powers of two. Am I correct? You get these messages when your blocks cannot keep up with the rate of data coming fro

Re: [Discuss-gnuradio] how do I disable this buffer warning?

2007-06-04 Thread Matt Ettus
I also get a lot of messages like this, and I suspect it is the curse for doing vector processing on vectors of length other than powers of two. Am I correct? Exactly. What is happening is that there is a very efficient way of implementing circular buffers using a virtual memory trick. By

Re: [Discuss-gnuradio] how do I disable this buffer warning?

2007-06-04 Thread Chris Stankevitz
Trond Danielsen wrote: I also get a lot of messages like this, and I suspect it is the curse for doing vector processing on vectors of length other than powers of two. Am I correct? You get these messages when your blocks cannot keep up with the rate of data coming from the source. Some block

Re: [Discuss-gnuradio] how do I disable this buffer warning?

2007-06-04 Thread Trond Danielsen
2007/6/4, Eric Blossom <[EMAIL PROTECTED]>: On Mon, Jun 04, 2007 at 12:19:21PM +0200, Vincenzo Pellegrini wrote: > Hi List, > the warning is ok, but once I have realized I've got no problem with it > how do I prevent it from spoiling the continuity of my status > messages? :D > > can anyone sugge

Re: [Discuss-gnuradio] DAB, RDS, DRM, HDradio and OFDM

2007-06-04 Thread Matt Ettus
Martin Dvh wrote: Hi all, Is anybody working on DAB, RDS,DRM, HDradio or OFDM at the moment. Actually, Tom, Eric, George, Thibaud, Bob, and myself are all at Virginia Tech this week, and we're working on OFDM. We just checked in some working OFDM code in the trunk. You can play with benchm

Re: [Discuss-gnuradio] how do I disable this buffer warning?

2007-06-04 Thread Eric Blossom
On Mon, Jun 04, 2007 at 12:19:21PM +0200, Vincenzo Pellegrini wrote: > Hi List, > the warning is ok, but once I have realized I've got no problem with it > how do I prevent it from spoiling the continuity of my status > messages? :D > > can anyone suggest how to disable it > > many thanks > best

[Discuss-gnuradio] how do I disable this buffer warning?

2007-06-04 Thread Vincenzo Pellegrini
Hi List, the warning is ok, but once I have realized I've got no problem with it how do I prevent it from spoiling the continuity of my status messages? :D can anyone suggest how to disable it many thanks best regards vincenzo > - > Connec