Hi Dario, How do you start the streaming? Using issue_stream_cmd()? If so, is this called on the streamer object or on the DDC or radio? The reason I ask is that if you call it on the streamer, I'm wondering if your issue is related to command propagation. That is, the command is not propagating through your block. If this is the case, try calling issue_stream_cmd() on the DDC block which will then propagate it to the Radio block (or call directly on the Radio if there is no DDC). Rob
On Fri, Aug 20, 2021 at 1:26 PM Dario Pennisi <da...@iptronix.com> wrote: > Hi, > i'm trying to optimize FPGA consumption and on N310/UHD4.1.0.1 i am > testing a block that needs only 2 inputs and no outputs. since i don't need > to stream any data in/out of the FPGA i declared a single streamer with > control only and declared no connection between it and any block in the yml > and this way i can see i can read and write registers. > the issue arises when i try to stream data to the block: if i have no > outputs declared, inputs will not receive anything. if i have 1 output > connected to a streamer, connected to a null sink, i can receive from the > first input, if i have 2 outputs connected to two streamers connected to > null sinks i can receive on both inputs. > is there any way i can get rid of those useless outputs and remove at > least 1 endpoint? > if i declare i need a single endpoint with no data why does it complain if > i don't declare buff_size in the yml? > my rfnoc block uses a noc shell that outputs axi stream payload which i > adapted for programmable number of inputs and outputs. > It seems to me the issue is not on the FPGA side as the backend block > seems to properly report information and o don't see any connection in NOC > shell between input and outputs other than in there... > > Thanks, > > Dario > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-le...@lists.ettus.com >
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