The app note you referenced is relevant for UHD 3.x.  Try AN-400 when using
UHD 4.x.

https://kb.ettus.com/Getting_Started_with_RFNoC_in_UHD_4.0


On Wed, Dec 22, 2021 at 2:37 AM sp h <[email protected]> wrote:

> Hi, I started developing RFNOC block in USRP x300, I installed Gnuradio
> 3.8.1 and UHD 4.0.0
> I study below link about how we can create custom RFNOC blocks......
>
> https://kb.ettus.com/Getting_Started_with_RFNoC_Development
>
> *In a section describing a tool...*
>
> The script uhd_image_builder.py is used to generate the NoC block
> instantiation file and build the FPGA image. Run the help menu by typing:
>
> But I can not find this script python in the UHD-src location... my
> question is how I can find them:
>
> It is told that they are in
> {USER_PREFIX}/src/uhd-fpga/usrp3/tools/scripts/
>
>
> uhd_image_builder.py   uhd_image_builder_gui
>
> but I can not find them...
>
> i see only these scripts in that path...
>
> git-hash.sh          viv_check_syntax.tcl     viv_ip_xci_editor.py
> ise_jtag_program.sh  viv_generate_bd.tcl      viv_sim_project.tcl
> launch_modelsim.sh   viv_generate_hls_ip.tcl  viv_strategies.tcl
> launch_vivado.py     viv_generate_ip.tcl      viv_synth.tcl
> launch_vivado.sh     viv_gen_ip_makefile.py   viv_utils.tcl
> launch_vlint.sh      viv_gen_part_id.py       xil_bitfile_parser.py
> setupenv_base.sh     viv_hardware_utils.tcl
>
>
> Thanks in advance
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