-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Matt Ettus wrote: > Douglas Geiger wrote: >> >> Is the test clock supposed to be running at 5kHz? I've just tested this >> on one of my USRP2 - it does appear to be locked with my external clock >> - - i.e. the 5kHz signal on the pin doesn't drift w.r.t my 10Mhz external > > > No, the test clock runs as 100MHz/div where div is the 2nd argument to > the function. The maximum value of div is 32. > > I think you are using a digital oscilloscope to view this, and you are > seeing it alias because you turned the time per division up way too > high. Change it to 100ns per division. > > Matt
Ah - that's was the problem. Unfortunately my scope can only handle a single channel at 100MHz, so setting the divisor >2 helps. Unfortunately it appears the clock is not synchronized with my external 10MHz clock - any suggestions on further steps to debug why I'm having trouble? Thanks, Doug - -- Doug Geiger Research Assistant Communications and Signal Processing Lab Oklahoma State University http://cspl.okstate.edu douglas.gei...@okstate.edu doug.gei...@ieee.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (Cygwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFJndsRgfOzzR5bXIgRAlZzAJ4wjTzE05MUZPXn2CfUFbnIJPRDqgCfcPKJ iSyctrCGAqKnewNpclJmwls= =+lqY -----END PGP SIGNATURE----- _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
