[Discuss-gnuradio] Assertion imu = 0 failed on random times

2011-04-22 Thread Daniel Bartel
Hello, in the program I am currently working on, I sometimes get the following error messsage: python: gri_mmse_fir_interpolator_cc.cc:66: gr_complex gri_mmse_fir_interpolator_cc::interpolate(const gr_complex*, float): Zusicherung »imu = 0« nicht erfüllt. Abgebrochen It seems like the

Re: [Discuss-gnuradio] Help : Is this right that the daughterboard passes data to the usrp board in the I and Q format.

2011-04-22 Thread Marcus D. Leech
On 04/22/2011 01:54 AM, ton ph wrote: Hi guys , I am using DBSRX , now i am trying to trace the data flow in the usr-gnuradio . I see AD9862 ADC in the usrp and some of the block diagrams , and i think that the daughterboard passes the analog signals to the ADC in the I and Q format .

[Discuss-gnuradio] USRP error on Beagleboard

2011-04-22 Thread Zhen
Hi, I installed gnuradio, gnuradio-usrp, gnuradio-examples by opkg in beagleboard, but when I ran usrp_benchmark_usb.py, the program can not find or import usrp module. It seems that usrp wasn't installed correctly, since there is no usrp.py found. But all gnuradio related packages in

Re: [Discuss-gnuradio] USRP error on Beagleboard

2011-04-22 Thread Philip Balister
On 04/22/2011 11:06 AM, Zhen wrote: Hi, I installed gnuradio, gnuradio-usrp, gnuradio-examples by opkg in beagleboard, but when I ran usrp_benchmark_usb.py, the program can not find or import usrp module. It seems that usrp wasn't installed correctly, since there is no usrp.py found. But

Re: [Discuss-gnuradio] Assertion imu = 0 failed on random times

2011-04-22 Thread Tom Rondeau
On Fri, Apr 22, 2011 at 2:57 AM, Daniel Bartel dan.bar.mailingl...@gmx.atwrote: Hello, in the program I am currently working on, I sometimes get the following error messsage: python: gri_mmse_fir_interpolator_cc.cc:66: gr_complex gri_mmse_fir_interpolator_cc::interpolate(const gr_complex*,

Re: [Discuss-gnuradio] Monthy Developers Call, April 15, 2011

2011-04-22 Thread Tom Rondeau
A bit late, but the notes and IRC log from last Friday's conference call are now available: http://gnuradio.org/redmine/wiki/gnuradio/Call20110415 We will be moving the monthly calls from the third Friday to the third Thursday of the month from now on.

[Discuss-gnuradio] 回复: USRP error on Beagleboard

2011-04-22 Thread Zhen
I see, thanks On 04/22/2011 11:06 AM, Zhen wrote: Hi, I installed gnuradio, gnuradio-usrp, gnuradio-examples by opkg in beagleboard, but when I ran usrp_benchmark_usb.py, the program can not find or import usrp module. It seems that usrp wasn't

Re: [Discuss-gnuradio] anyone know sine wave or square wave external clock is better for usrp

2011-04-22 Thread Daniel Bartel
Hello. I need to use external clock on usrp, there are two kinds of clock: sine wave and square wave. which is better for usrp? I used for my N210 a square wave signal, because it was suggested on http://www.ettus.com/uhd_docs/manual/html/index.html Daniel

[Discuss-gnuradio] User experience with E1x0 boards

2011-04-22 Thread Colby Boyer
Hi All, My lab is interested in purchasing some USRPs. It is pretty settled that some of the boards will be the N2x0 series, but I am interested to hear from people who have used the E1x0 boards. From what I can tell, the E1x0 board should have better latency performance than the N2x0 and should

Re: [Discuss-gnuradio] User experience with E1x0 boards

2011-04-22 Thread Almohanad Fayez
I haven't worked with the E100 per se but I've worked with the Beagleboard + USRP1 which is the same thing except the E100 uses SPI to communicate with the processor versus USB. So I've done work on integrating the OMAP3530 DSP with the GPP within GNU Radio. I feel that the use of the DSP is

Re: [Discuss-gnuradio] User experience with E1x0 boards

2011-04-22 Thread Philip Balister
On 04/22/2011 06:00 PM, Almohanad Fayez wrote: I haven't worked with the E100 per se but I've worked with the Beagleboard + USRP1 which is the same thing except the E100 uses SPI to communicate with the processor versus USB. So I've done work on integrating the OMAP3530 DSP with the GPP

Re: [Discuss-gnuradio] User experience with E1x0 boards

2011-04-22 Thread Almohanad Fayez
I've always wondered about the design difference between the E100 and the work you did with Chris Anderson's board ... now I know. BTW where do you have your driver code posted for the E100 and any documentation, if it exists yet :) ? I found slides that you presented on April 13th. I want

Re: [Discuss-gnuradio] anyone know sine wave or square wave external clock is better for usrp

2011-04-22 Thread John Wu
Thanks! On 4/23/11, Daniel Bartel dan.bar.mailingl...@gmx.at wrote: Hello. I need to use external clock on usrp, there are two kinds of clock: sine wave and square wave. which is better for usrp? I used for my N210 a square wave signal, because it was suggested on

Re: [Discuss-gnuradio] GRC: Hierarchical Blocks: Several Source- and Sink-Pads

2011-04-22 Thread Josh Blum
FYI, this has been fixed and merged into the master. http://gnuradio.org/cgit/gnuradio.git/commit/?id=a4ac44d7adbd9c6cdd107ec7985e294fea81845a -Josh On Fri, Apr 9, 2010 at 5:31 AM, Josh Blum j...@joshknows.com wrote: Alright well, it looks like it needs fixing. I cant look at this until