On Mon, Aug 22, 2005 at 01:53:55PM -0400, cswiger wrote: > Just another stab - set_pga() seems to be screwy. With a > usrp_siggen.py looped back to usrp_oscope.py, not using > set_pga and amplitude 16e3 there's a signal peaking at 500. > However, use set_pga(0,n) (n=any value from 0 to 20) > and the signal drops to about 300. Checking with
On the Tx side set_pga accepts values from -20.0 to 0.0 by 0.1. See usrp_basic.cc: usrp_basic_tx for docs. Try stepping it from -20.0 to 0.0 by 0.1. I'm pretty sure it works. > Also looks like broken information in the Register 16 docs, as > they only show 6 bits with max gain scaling as 63. Yes, I think it's really an 8 bit value. > Bottom line, set_pga() seems to be broken on the tx side - but > it's stuck at max gain anyway. If you get a chance, can you check it again? Thanks, Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
