Re: [Discuss-gnuradio] 1 PPS for USRP2 ?

[Krishna S]

Hi Jermy,

               1PPS requirement is not mandatory. To acheive synchronization between two USRP2's i have done the following,

1) Change the firmware in both USRP2's  SD card
     in txrx.c i have added
    clocks_enable_test_clk(true,2);
    clocks_mimo_config(MC_WE_LOCK_TO_SMA);
     just before whilr(1) loop

2) i have connected 1 GPS source providing reference CLOCK 10 MHz 1.2 Vp-p, to 2      
    USRP2's with a T-splitter.
    If not GPS, u can also use signal generator, generate a 10MHz 1.2Vp-p and  feed this 
    to  the REF CLK of USRP2.


This should solve the Synchronization problem.

Regards
KRISHNA S

--- On Sun, 9/5/10, jeremy ward <address@hidden> wrote:

From: jeremy ward <address@hidden>
Subject: [Discuss-gnuradio] 1 PPS for USRP2 ?
To: address@hidden
Date: Sunday, 9 May, 2010, 7:48 PM

Hey Man

Did you have any luck with this.  I too am trying to get PPS going.  Any advice?

jer