Hi German,

The critical warning sounds ominous but can be safely ignored. The licenses
are included with Vivado, but Vivado gives the warning anyway. As long as
you have a Vivado license, and a bitstream was generated, the 10 GbE IP
should work fine.

Wade

On Thu, Dec 21, 2023 at 11:20 AM German Farinas <[email protected]>
wrote:

> Update on this. Looking at the build log I found this:
>
> Evaluation cores found in this design:
>     IP core 'ten_gig_eth_pcs_pma' (ten_gig_eth_pcs_pma_v6_0_19) was
> generated using a design_linking license.
>
> Resolution: If a new IP Core license was added, in order for the new
> license to be picked up, the current netlist needs to be updated by
> resetting and re-generating the IP output products before bitstream
> generation.
>
> How do I regenerate the IP core?
>
> Best,
> German
>
> On Wed, Dec 20, 2023 at 10:48 PM German Farinas <[email protected]>
> wrote:
>
>> 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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