[USRP-users] Re: RFNOC dropping packets

2022-03-07 Thread Wade Fife
Hi Jeff, Can you describe the dataflow of your RFNoC graph (which blocks you're using and how they're connected)? For example, is it: host -> SEP -> Your Block -> Radio? Could you try the latest version of UHD (v4.1.0.5)? There were many bug fixes since the initial release of 4.0. You may also wa

[USRP-users] Re: Network card compatibility X410

2022-03-07 Thread Wade Fife
Hi Yuriy, The Dual 100 Gigabit Ethernet PCIe Interface Kit (PN 788216-01) includes an NVIDIA MCX516A-CCAT card and one QSFP28 cable for 100 GbE. The QSFP28 to 4xSFP28 Breakout Cable (PN 788214-01) has one QSFP28 on one end and four SFP28 cables on the other end. It is for connecting up to four 10

[USRP-users] RFNOC dropping packets

2022-03-07 Thread Jeffrey P Long
Hi- I have determined that somewhere upstream from my custom RFNOC component the fabric is intermittently dropping a fixed number of packets. I have a custom transmit waveform encapsulated in a single RFNOC component. This waveform component effectively takes about 8 32-bit samples of user data

[USRP-users] Re: How can create an RFNOC correlate block for USRP?

2022-03-07 Thread Rob Kossler
It's not clear to me what you want to implement on the FPGA. The USRP typically digitizes and streams continuously. It is not possible to implement a cross correlation of infinite length sequences. Even if finite, you would need to buffer all of the finite samples in order to perform the xcorr. So

[USRP-users] Re: How can create an RFNOC correlate block for USRP?

2022-03-07 Thread sp h
Awesome, thanks! But how can implement xcorrelate in RFNOC blocks?? It is very hard to implemented in Verilog On Fri, Feb 25, 2022 at 5:43 PM Rob Kossler wrote: > The MATLAB function xcorr() can be implemented in the time domain as a > convolution (or similarly an FIR filter) or in the frequen