Hello, I ran the example in this guide ( https://kb.ettus.com/Getting_Started_with_RFNoC_in_UHD_4.0) to add a new FFT RFNoC block. I modify the default yaml file and run the following command:
rfnoc_image_builder -y x300_with_fft.yml -t X300_HG -F ../../../ Everything went well and the bitstream file was successfully generated. I uploaded to my USRP X300 with the following command: uhd_image_loader --args "type=x300,addr=192.168.10.2" --fpga-path ./build/usrp_x300_fpga_HG.bin after loading the new image this is the output to the *uhd_usrp_probe --args type=x300* command: RFNoC blocks on this device: | | | | * 0/DDC#0 | | * 0/DDC#1 | | * 0/DUC#0 | | * 0/DUC#1 | | * 0/FFT#0 | | * 0/Radio#0 | | * 0/Radio#1 | | * 0/Replay#0 | _____________________________________________________ | / | | Static connections on this device: | | | | * 0/SEP#0:0==>0/DUC#0:0 | | * 0/DUC#0:0==>0/Radio#0:0 | | * 0/Radio#0:0==>0/DDC#0:0 | | * 0/DDC#0:0==>0/SEP#0:0 | | * 0/Radio#0:1==>0/DDC#0:1 | | * 0/DDC#0:1==>0/SEP#1:0 | | * 0/SEP#2:0==>0/DUC#1:0 | | * 0/DUC#1:0==>0/Radio#1:0 | | * 0/Radio#1:0==>0/DDC#1:0 | | * 0/DDC#1:0==>0/SEP#2:0 | | * 0/Radio#1:1==>0/DDC#1:1 | | * 0/DDC#1:1==>0/SEP#3:0 | | * 0/SEP#4:0==>0/Replay#0:0 | | * 0/Replay#0:0==>0/SEP#4:0 | | * 0/SEP#5:0==>0/Replay#0:1 | | * 0/Replay#0:1==>0/SEP#5:0 | | * 0/SEP#6:0==>0/FFT#0:0 | | * 0/FFT#0:0==>0/SEP#6:0 Everything apparently looks good because the FFT was inserted. However during the last phase of the vivado tools flow, after synthesis, place, route, etc, during the *BUILDER: Writing bitfile *phase it issues the following supposedly critical warning: *CRITICAL WARNING: [Vivado 12-1790] Evaluation License Warning: This design contains one or more evaluation cores that will cease to function after a certain period of time. This design should NOT be used in production systems.* I think it may be the FFT IP core but I am not sure. I have Vivado v2021.1_AR76780 ML with an Enterprise Edition license. The version is 2021 because this is the version supported by Ettus for building FPGA images. My license goes up to 2023.1 limit, but this should not affect me because I am using the 2021 version. I compiled the default images and I don't recall receiving this critical warning. Anyone had the same issue? Any help or explanation to this? Is this something I should worry about ? Best regards, German
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