Check out the usrp_multi code - I believe it all got updated to work
with the hier_block2 API update. It's in
gnuradio-examples/python/multi_usrp, and it comes with a custom FPGA
image (pre-inband signaling - the timestamps get interleaved with the
data, and the data gets de-interleaved and ordered correctly on the
host. One USRP provides a master clock that the second slaves to - via
an SMA connector you'll have to solder in (in addition, two pins on the
daugherboard interface are used to send a 'start' pulse, similar to the
1pps function on the USRP2).
I haven't messed with it in a while, but it worked when I last tried it
out.
Doug
On Mon, 2010-01-25 at 11:29 +0100, Luca Pascale wrote:
HI all,
I need to get IQ samples from 2 USRP1 in a synchronous manner.
Thus I cant make:
urx1->read()
urx2->read()
I'need to execute the two "read()" operation "at the same time" (or
something similar).
Any suggestion to do that ?
Thanks in advance
Luca
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--
Douglas Geiger
Code 5545
U.S. Naval Research Laboratory
Washington, DC 20375
(202) 767-9048
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