Re: [USRP-users] Recieve on two channels simultaneously USRP E310

[Ivan Zahartchuk]

Yes, I really get an error
 The packing of instances into the device could not be ovailable, however, the unplaced instances require 9681 slices. Please analyze your design to determine if the number of LUTs, FFs, and / or control sets can be reduced.
ERROR: [Place 30-99] Placer failed with error: 'Detail Placement failed please check previous errors for details.'
beyed. There are a total of 13300 slices in the pblock, of which 8368 slices are available, however, the unplaced instances require 9681 slices. Please analyze your design to determine if the number of LUTs, FFs, and / or control sets can be reduced.
ERROR: [Place 30-99] Placer failed with error: 'Detail Placement failed please check previous errors for details.
But do not tell me if there are blocks in gnuradio to control gpio. The general idea is to implement an amplitude or phase direction finder on a given board. Perhaps you have any suggestions or examples. Because in programming on FPGAs I am unfortunately very weak and I need decent speed.

сб, 4 апр. 2020 г. в 20:50, Marcus D. Leech via USRP-users <address@hidden>:

On 04/04/2020 01:39 PM, Ivan Zahartchuk via USRP-users wrote:

Hello. Can I create a binary file with two fft blocks and two window blocks for usrp E310 for rfnoc? And if so, how ? The idea is to receive a signal from two channels simultaneously.

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There may not be enough room for two FFT blocks in the E310 FPGA.  But regardless, you'd need Xylinx Vivado tooling to generate up an RFNOC
  FPGA image that has the appropriate blocks generated into it. There is no "dynamic" generation of blocks in the FPGA.  The only "dynamic"
  part is the connection of those blocks across the cross-bar construct that RFNoC uses.

This document may be helpful:

https://kb.ettus.com/Getting_Started_with_RFNoC_Development

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