Re: [Discuss-gnuradio] uhd_find_devices not detecting USRP2

When I try to ping, it is not able to see the USRP2. The output states "Destination Host Unreachable". I tried both 192.168.10.2 and 192.168.10.4 since I ran "sudo ./usrp2_recovery.py --ifc=eth0 --new-ip=192.168.10.4" previously. -- View this message in context: http://gnuradio.4.n7.nabble.c

Re: [Discuss-gnuradio] uhd_find_devices not detecting USRP2

Hi Marcus, They do light up, mostly just the left LED. Just to confirm, I tried the working USRP2 and it lights up the same exact way. Also the LEDs on the Ethernet card on the host computer light up. -- View this message in context: http://gnuradio.4.n7.nabble.com/uhd-find-devices-not-de

Re: [Discuss-gnuradio] uhd_find_devices not detecting USRP2

Hi Marcus, Thank you for the response. Does swapping the SD card from the working USRP2 to the faulty one not override this issue? I tried that, but it still is not being detected. Maybe this is a hardware related problem. - Rob -- View this message in context: http://gnuradio.4.n7.nabbl

[Discuss-gnuradio] uhd_find_devices not detecting USRP2

Hi Everyone, I recently found a couple USRP2's that have not been used for some time in my lab, and decided to use them for some testing. One of the USRP2's worked perfectly when I connected it up to the host computer, but the other one is giving me issues. The uhd_find_devices is not able to

[Discuss-gnuradio] Sampling with multiple USRP N210s with one host computer

Hi Everyone, I recently discovered that Ettus offer a way of synchronizing up the eight USRPs with the following clock distribution system: https://www.ettus.com/product/details/OctoClock-G Out of curiosity, how would one be able to connect

Re: [Discuss-gnuradio] Dynamically set sample rate

Does anybody have any ideas on this question? -- View this message in context: http://gnuradio.4.n7.nabble.com/Dynamically-set-sample-rate-tp44048p44128.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list

[Discuss-gnuradio] Dynamically set sample rate

This might be a trivial question, but I did some searching around and could not find anything. Is there any way to dynamically set the sample rate in a "top_block" file without stopping the program and restarting it? Say I have the USRP sampling at 100KHz, then after 30 seconds would it be possibl

[Discuss-gnuradio] Reconfigure FIR coefficients without stopping the sampling process

Hello Everyone, I have a quick question regarding the reconfiguration of blocks within a gnuradio "top block" application. I am working on a radar system that will occasionally attempt to switch transmission waveforms due to results of processed data. Consequently, the back end processing will h

[Discuss-gnuradio] GNURadio looking for wrong boost version

Hi Everyone, This might be something very trivial that I am unsure how to fix. I had everything with GNURadio working up until a couple days ago, but this afternoon I was getting some error concerning boost when trying to import one of the libraries. In particular, when providing the command:

Re: [Discuss-gnuradio] Loss of synchronization while creating new file

Hi Marcus, Thank you for the prompt reply. I have attached the two python programs that have been written to do this type of acquisition. From Snafoo.py the only section of importance is the Rupdate. Before any file is written, the program checks the hard drive to make sure there is enough spa

[Discuss-gnuradio] Loss of synchronization while creating new file

Hi Everyone, I am having some issues with figuring out the cause of a loss of synchronization using the USRP N210. I will be using the USRP as a receiver for a radar system, but I am still in the calibration phase. For calibration testing, I am interested in seeing the stability of the baseband

Re: [Discuss-gnuradio] Using PPS as a sampling trigger

Hi Josh, Thank you for the reply. I have been trying to implement what you mentioned using the rx_timed_samples program but am having some trouble making sense of the results. Here are the changes I have made to the code in order to acquire PPS timing information. usrp->set_clock_source("ex

[Discuss-gnuradio] External Clock set to 64MHz on USRP2/N210

Hello All, There was a previous project done in my research group where a external device generates a 64 MHz clock to the USRP1 in addition to a PPS signal. Currently I am making appropriate changes so a similar project can be used for the USRP2/N210. I was wondering if the same 64MHz external

[Discuss-gnuradio] Using PPS as a sampling trigger

Hello Everyone, I am a relatively new user to the USRP2 and currently would like to make some changes to how an external PPS signal is deciphered. As of now, I believe that once the first rising edge of a PPS signal is detected, the USRP2 will continually collect data until it is programmed to