Hi Kevin, The BFM for CHDR does some checks to make sure packets are formatted correctly. The error message means the "Length" field in the CHDR header doesn't match the length of the AXI-Stream packet.
The chdr_to_item call is giving a warning because it's expecting a multiple of 32-bits (ITEM_W = 32, or 4 bytes per item) but num_bytes is not a multiple of 4. Wade On Wed, Sep 28, 2022 at 5:24 AM Kevin Williams <zs1...@gmail.com> wrote: > Hi Guys, > > What does the following mean? > > I am getting packets sent to an IP core I generated, and this is the > result of a blk_ctrl.recv_items() in my testbench. > > The first few packets are correct. > > I can see that 64-bit CHDR words are correctly unpacked, and 2 x 16-bit > I/Q samples are injected into the core, and vice-versa, which leads me to > believe I have the buses mapped correctly etc. > > Regards, Kevin > > > Error: ChdrPacket::axis_to_chdr: Incorrect CHDR length > > Time: 2445 ns Iteration: 0 Process: > /PkgChdrBfm/ChdrBfm(CHDR_W=64,USER_WIDTH=1)::get_chdr File: > /home/kwilliams/rfnoc/uhd/fpga/usrp3/sim/rfnoc/PkgChdrBfm.sv > > Warning: ChdrData::chdr_to_item: num_bytes is not a multiple of items > > Time: 2445 ns Iteration: 0 Process: > /PkgChdrIfaceBfm/ChdrIfaceBfm(CHDR_W=64,ITEM_W=32)::recv_items File: > /home/kwilliams/rfnoc/uhd/fpga/usrp3/sim/rfnoc/PkgChdrIfaceBfm.sv > > -- > Kevin Williams > _______________________________________________ > 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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