On Fri, Feb 23, 2007 at 10:17:21AM +0100, anmar wrote: > Eric Blossom wrote: > > On Wed, Feb 21, 2007 at 11:11:17AM +0100, anmar wrote: > >> > stream of complexes. (Yes, the interface is a bit strange and ought > >> > fg.connect(interleaver, u) > >> > That's right. If you're using a single Basic Tx daughterboard, and > >> > you want independent real output out the I and Q, that'll take a fair > >> > amount of hacking. Using two daughterboards is going to be much, much > >> > easier ;) > >> > >> ok that is to bad, but do you know any one how tried to do this > > > > No. > > > >> or do you know where to begin hacking :)? > > > > Getting this right requires understanding how the host, the FPGA code > > and the AD9862 all interact. If you've been following Brian's > > questions about the FPGA over the past few days, you're on the right > > track. Note also, that if you send two real signals to the AD9862 you > > lose the use of the digital up converter ("Fine Modulator") in the > > AD9862. Assuming you need a DUC, you'll have to reimplement this > > functionality in the FPGA. [In "two independent real signal mode" you > > only have Block C "Interpolator" and Block B "Coarse Modulator" > > available.] > > > >> We just want to see if it can be done with the time that we have, or > >> just go and use two Tx daugterboards. > > > > Any particular reason you don't want to use two Tx daughterboards? > > If you use two Tx daughterboards, you could have your independent-signal > > transmitter up and working in 30 minutes. > > > > Eric > > hi Eric, > can you post an example that transmits to tx signales from two tx > boards? > we have trying the code that you posted earlier, but it won't work. we > have tyied the fm_tx_2_daugtherboards.py that worked well, but is pit > comcplicated to understand and when modifying it don't work any more. > > thanks in advance > anmar and wim >
The fm_tx_2_daughterboards.py code is about the simplest code that transmits on two daughterboards. What part of it do you have questions about? Do you understand how to transmit on a single daughterboard? Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio