Re: [Discuss-gnuradio] USRP2 reference clock

2016-04-13 Thread Marcus Müller
Hi Nils, So, could you share your flow graph, or a sketch of it? Especially (asked you on SO, too): Do you use one uhd_usrp_source, or two? And: how do you tell the source(s) which USRP to use? To answer the easy-to-answer questions right now: > Is it possible to set the master clock at the USRP

[Discuss-gnuradio] USRP2 reference clock

2016-04-13 Thread Nils Hollmach
Dear Sir or Madam, At present I work with 2 different USRPs. One of this is the USRP2 and the another one a newer device is the X300. This devices communicate each about QPSK and a test algorithm. For the USRP2 I use the reference input and use reference clock output from the x300 device to com

Re: [Discuss-gnuradio] usrp2 reference clock

2009-03-23 Thread Matt Ettus
Jin Zhang wrote: Hi, I'm a new comer to usrp2. If we want to use a reference 10MHz clock instead of 100MHz, is there any hardware modification needed? Now I only change the fpga_master_clock_freq in usrp2_impl.cc from *freq = 1L to *freq = 1000L. I tried to send digital signal in

[Discuss-gnuradio] usrp2 reference clock

2009-03-20 Thread Jin Zhang
Hi, I'm a new comer to usrp2. If we want to use a reference 10MHz clock instead of 100MHz, is there any hardware modification needed? Now I only change the fpga_master_clock_freq in usrp2_impl.cc from *freq = 1L to *freq = 1000L. I tried to send digital signal in gnuradio-example/pyth