Thanks very much.  Jonathon and Yair. my problem is solved.

On Tue, Aug 30, 2022 at 5:38 AM Jonathon Pendlum <jonathon.pend...@ettus.com>
wrote:

> Hello,
>
> I suggest using LD_PRELOAD instead of UHD_MODULE_PATH, as UHD_MODULE_PATH
> will load all .so files in the directory.
>
> Jonathon
>
> On Mon, Aug 29, 2022 at 8:27 AM Yasir Özçalık <simultaneou...@gmail.com>
> wrote:
>
>> If so, there must be a .so file somewhere for lib. If you used
>> rfnoc-example, it would be under build/lib folder. You must export its path
>> in order to not get that warning (btw it is not an error, it is warning.).
>> The reason for warning is it cannot find your custom block while calling
>> uhd_usrp_probe. If you export your .so file's path, you can get rid of
>> that.
>> Example for export : "export
>> UHD_MODULE_PATH=<path_to_so_file>/librfnoc-example.so" (Since you did not
>> use rfnoc-example, name of the file should be different)
>>  If you call this in terminal before uhd_usrp_probe, then you should not
>> see that warning.
>>
>> Yasir
>>
>> sp <stackprogra...@gmail.com>, 29 Ağu 2022 Pzt, 15:03 tarihinde şunu
>> yazdı:
>>
>>> Thanks very much, I created a bitstream for a custom rfnoc block, I
>>> don't use an RFNOC example....
>>>
>>> On Mon, Aug 29, 2022 at 1:26 PM Yasir Özçalık <simultaneou...@gmail.com>
>>> wrote:
>>>
>>>> Hi sp,
>>>> can you give the details about how you generated bitstream with RFNoC
>>>> block. Did you use rfnoc-example, also did you generate bitstream with
>>>> default codes or did you add your own block into RFNoC?
>>>>
>>>> sp <stackprogra...@gmail.com>, 29 Ağu 2022 Pzt, 10:14 tarihinde şunu
>>>> yazdı:
>>>>
>>>>> When I built FPGA for RFNOC block I faced with strange error...I
>>>>> check the FPGA source and RFNOC CPP source every id is ok but my code
>>>>> doesn't work correctly...
>>>>> ????
>>>>> Can any help me?
>>>>> uhd_usrp_probe
>>>>> [INFO] [UHD] linux; GNU C++ version 9.4.0; Boost_107100;
>>>>> UHD_4.2.0.0-0-unknown
>>>>> [INFO] [X300] X300 initialization sequence...
>>>>> [INFO] [X300] Maximum frame size: 1472 bytes.
>>>>> [INFO] [X300] Radio 1x clock: 200 MHz
>>>>> [WARNING] [UDP] The recv buffer could not be resized sufficiently.
>>>>> Target sock buff size: 2453333 bytes.
>>>>> Actual sock buff size: 212992 bytes.
>>>>> See the transport application notes on buffer resizing.
>>>>> Please run: sudo sysctl -w net.core.rmem_max=2453333
>>>>> [WARNING] [UDP] The send buffer could not be resized sufficiently.
>>>>> Target sock buff size: 2453333 bytes.
>>>>> Actual sock buff size: 212992 bytes.
>>>>> See the transport application notes on buffer resizing.
>>>>> Please run: sudo sysctl -w net.core.wmem_max=2453333
>>>>> [WARNING] [UDP] The current recv_buff_size of 212992 is less than the
>>>>> minimum recommended size of 816000 and may result in dropped packets on
>>>>> some NICs
>>>>> [WARNING] [UDP] The current send_buff_size of 212992 is less than the
>>>>> minimum recommended size of 307200 and may result in dropped packets on
>>>>> some NICs
>>>>> [WARNING] [RFNOC::BLOCK_FACTORY] Could not find block with Noc-ID
>>>>> 0x2cd7049b, 0xffff
>>>>> [INFO] [0/Block#0] Setting default MTU forward policy.
>>>>> [WARNING] [RFNOC::BLOCK_FACTORY] Could not find block with Noc-ID
>>>>> 0xf0c66ff1, 0xffff
>>>>> [INFO] [0/Block#1] Setting default MTU forward policy.
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>>>>>
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>
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