[Discuss-gnuradio] Problems with duplex on XCVR2450

2010-03-18 Thread zealoghu
Hi all, We have some problems when working on the MIMO implementation based on USRP1 and XCVR2450. With the default XCVR2450 driver and settings, the receiver cannot receive anything most of the time (sometimes it can). But when I comment out this line usrp()->_common_write_oe(C_RX, d_which, RX_OE

Re: [Discuss-gnuradio] sampling jitter

2010-03-18 Thread Tom Rondeau
On Wed, Mar 17, 2010 at 8:23 AM, Per Zetterberg wrote: > Dear All, > > I have been experimenting with transmitting a tone between two USRP2s > equipped with basic daughterboards. The daughterboards are tuned to 20MHz, > and the transmitted signal is generated in base-band as a cisoid with 5MHz > f

Re: [Discuss-gnuradio] gnu radio questions

2010-03-18 Thread Philip Balister
On 03/18/2010 12:29 PM, Andrew Rich wrote: Hello Wondering if some can help 1) Is gnu radio just command line stuff or is there some gui parts ? There are both parts. 2) what sort of assisting programs can be used with gnu radio ? any charting or graphing apps ? grc makes it really easy

Re: [Discuss-gnuradio] Questions about WBX daugtherboard

2010-03-18 Thread Jason Abele
On Wed, Mar 17, 2010 at 04:09:09PM -0700, Damien Serant wrote: > > Hi everybody, > > I received few days ago my new URSP2 with the WBX daugtherboard and i have > some questions. > First there is two input: one labeled Tx/Rx and the other Rx2. Why is there > two Rx input and which one i have to u

[Discuss-gnuradio] gnu radio questions

2010-03-18 Thread Andrew Rich
Hello Wondering if some can help 1) Is gnu radio just command line stuff or is there some gui parts ? 2) what sort of assisting programs can be used with gnu radio ? any charting or graphing apps ? Cheers Andrew ___ Discuss-gnuradio mailing list Dis

[Discuss-gnuradio] Generic Performance Primtives?

2010-03-18 Thread Kell, Scott
In Sept 2008 there was some talk in a post on this list of creating a Generic Performance Primitives Library [1], an open source re-implementation of the Intel Integrated Processing Primitive (IPP) library.I've googled that name but didn't come up with anything. I'm curious - does anyone

Re: [Discuss-gnuradio] USRP Under Flow

2010-03-18 Thread Philip Balister
On 03/18/2010 07:21 AM, halidziya yerebakan wrote: Any way , my cpu is not very busy when it is working problem is some where else acording to me , I don't know how to use blocks in python but maybe we can create a block between audio device and output device that converts 32 khz to 48 khz When

Re: [Discuss-gnuradio] USRP Under Flow

2010-03-18 Thread halidziya yerebakan
Any way , my cpu is not very busy when it is working problem is some where else acording to me , I don't know how to use blocks in python but maybe we can create a block between audio device and output device that converts 32 khz to 48 khz audio_decimation = 10 audio_rate = demod_r

Re: [Discuss-gnuradio] USRP Under Flow

2010-03-18 Thread Philip Balister
On 03/17/2010 03:15 PM, Jeff Brower wrote: Halidziya- My beagle board is clone and it is working in 200MHZ , but when I run the program it doesn't consumes to much CPU time A Beagle board clone? The Beagle board already costs less than its component BOM. Did you alter the design in some w

Re: [Discuss-gnuradio] Is gr-gpio broken?

2010-03-18 Thread Juha Vierinen
It's not broken. Remove the line import gpio_swig from the gpio.py file. I think I sent a patch for this, but the line probably gets added automatically... juha On Wed, Mar 17, 2010 at 23:41, Drew Read wrote: > Hi all, > > Am I doing something stupid or should I raise this as an issue? > > I've

[Discuss-gnuradio] Re: Full duplex with RFX2400 on USRP2

2010-03-18 Thread 加藤義也
sorry for send this again. video is on http://www.telemann.co.jp/00012.mts 2010年3月18日17:28 加藤義也 : > Hello gnu-radio friends. > > I would like to realize RFX2400 full duplex configuration. > > I am using RFX2400 on USRP2 and tried to transmit and receive(fft.py at the > same time. > But I got unst

[Discuss-gnuradio] Full duplex with RFX2400 on USRP2

2010-03-18 Thread 加藤義也
Hello gnu-radio friends. I would like to realize RFX2400 full duplex configuration. I am using RFX2400 on USRP2 and tried to transmit and receive(fft.py at the same time. But I got unstable spectrum for both TX/RX. Here is the video And configuration is as below.