Finally, I used the below command to built bitstream for FPGA...

rfnoc_image_builder  -F /home/sp/Documents/uhd-4.1.0.5/fpga   -I
/home/sp/Documents/rfnoc-example/include/rfnoc  -y
/home/sp/Documents/rfnoc-example/icores/x310_rfnoc_image_core.yml
But I was faced with a strange error...
RFNOC example for gain that there is in UHD file has errors...

[ERR] 1 unresolved clk domain(s)
[ERR]     gain0:ce
[ERR] Please specify the clock(s) to connect





On Sun, Feb 6, 2022 at 7:38 PM sp h <stackprogra...@gmail.com> wrote:

> I copied the RFNOC example in a folder. for building, I used these
> commands...
> Building and Installing an OOT Module
> mkdir build
> cd build
> cmake .. -DUHD_FPGA_DIR=/home/sp/Documents/uhd-4.1.0.5/fpga
> make
> Building an FPGA Image with OOT Blocks
> when I want to build FPGA I used these commands...
>
> make x310_rfnoc_image_core
>
> I faced with this error
> *Errors:*
>
>
>
> *Setting up a 64-bit FPGA build environment for the USRP-X3x0...- Vivado:
> Version 2019.1 not found in /opt/Xilinx/Vivado (ERROR.. Builds and
> simulations will not work)          Use the --vivado-path option to
> override the search pathBuilt target x310_rfnoc_image_core*
>
> When I used these options I was faced another error...
>
> make x310_rfnoc_image_core --vivado-path=/home/sp/xilinx/Vivado
>
> *Errors:*
> make: unrecognized option '--vivado-path=/home/sp/xilinx/Vivado'
>
> How can build Gain RFNOC example successfully?
> thanks in advance
>
>
>
>
>
>
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