Thanks for your help Nick! I will do that.
Best regards,
Adrià
El 6/25/2019 a las 7:10 PM, Nick Foster escribió:
Yeah, that's the problem. The current RFNoC architecture doesn't allow
for two full-rate outputs from a single block, because the two outputs
share the same port on the crossbar.
The best solution is to write a custom splitter block which
instantiates two noc_shells, and wire them both to the crossbar in
rfnoc_ce_auto_inst_x310.v. If you get stuck doing this I can dig up
some example code.
Nick
On Tue, Jun 25, 2019 at 6:50 AM Adrià Amézaga via USRP-users
<[email protected] <mailto:[email protected]>> wrote:
Hi Jonas,
I use the full sampling rate for the TX sweeps since most of the
instantaneous bandwidth of the UBX is used.
Transmitting at these rates over 1Gig Ethernet would not be
possible, so I generate them using an RFNoC block inside the FPGA.
Adrià
El 6/25/2019 a las 3:22 PM, Jonas Manthey escribió:
Hi,
I cannot answer your question, but out of curiosity: why do you
use a RFNoC? Seems like overkill to me.
Cheers,
Jonas
*From:*USRP-users [mailto:[email protected]] *On
Behalf Of *Adria via USRP-users
*Sent:* Dienstag, 25. Juni 2019 15:07
*To:* [email protected] <mailto:[email protected]>
*Subject:* [USRP-users] Samples do not get through RFNoC stream
splitter
Dear all,
I am working on an application where I need to transmit a
frequency ramp through two UBX-160 using different carrier
frequencies.
I use a split_stream RFNoC block to copy the samples of a ramp
generator like this:
[Ramp Generator] ---> [Split Stream] --> Radio 0
'-> Radio 1
However, I see no activity on the radio outputs. If I replace the
splitter with, for instance, a DigitalGain block or I remove it,
data is transmitted correctly through any of the two daughterboards.
Here is how I connect the blocks:
/ //Connect DDS sweeper to splitter
graph->connect(dds_src_ctrl->get_block_id(), splitter_id);
//Connect splitter to radios
graph->connect(splitter_id, 0, radio_ctrl_id_b, 0);
graph->connect(splitter_id, 1, radio_ctrl_id_a, 0);/
Any help would be appreciated, thanks!
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