This necessity for setting UHD_RFNOC_DIR should probably be added to the
UHD manual.

On Fri, Mar 23, 2018 at 2:15 PM, Derek Kozel via USRP-users <
usrp-users@lists.ettus.com> wrote:

> Hello Matis,
>
> UHD uses RFNoC internally at all times since the 3.10.0.0 release. The XML
> files are needed for standard operation. It does not expose the full API or
> set of features unless the rfnoc-devel branch is used.
>
> Regards,
> Derek
>
> On Fri, Mar 23, 2018 at 6:05 PM, Matis Alun via USRP-users <
> usrp-users@lists.ettus.com> wrote:
>
>> yes, I missed the make install because I thought that it was optionnal.
>>
>> Tell me if I wrong: RFnoc is not used since we use multi_usrp wright ?
>> in this case, xml files are also needed ?
>>
>> Thanks.
>>
>> matis
>>
>> Le 23/03/2018 à 17:35, Marcus D. Leech via USRP-users a écrit :
>>
>> On 03/23/2018 12:30 PM, Matis Alun via USRP-users wrote:
>>
>> yes of course:
>>
>> total 76
>> -rw-r--r--. 1 root root 1433  2 nov.   2016 addsub.xml
>> -rw-r--r--. 1 root root  363  2 nov.   2016 block.xml
>> -rw-r--r--. 1 root root 2944  2 nov.   2016 ddc_single.xml
>> -rw-r--r--. 1 root root 3875  2 nov.   2016 ddc.xml
>> -rw-r--r--. 1 root root 1677  2 nov.   2016 dma_fifo.xml
>> -rw-r--r--. 1 root root 2393  2 nov.   2016 duc.xml
>> -rw-r--r--. 1 root root 3845  2 nov.   2016 fft.xml
>> -rw-r--r--. 1 root root  899  2 nov.   2016 fifo.xml
>> -rw-r--r--. 1 root root  365  2 nov.   2016 fir.xml
>> -rw-r--r--. 1 root root 4500  2 nov.   2016 fosphor.xml
>> -rw-r--r--. 1 root root 1374  2 nov.   2016 keep_one_in_n.xml
>> -rw-r--r--. 1 root root 1262  2 nov.   2016 logpwr.xml
>> -rw-r--r--. 1 root root  554  2 nov.   2016 nullblock.xml
>> -rw-r--r--. 1 root root  624  2 nov.   2016 ofdmeq.xml
>> -rw-r--r--. 1 root root 1531  2 nov.   2016 packetresizer.xml
>> -rw-r--r--. 1 root root 1582  2 nov.   2016 radio_x300.xml
>> -rw-r--r--. 1 root root 3432  2 nov.   2016 siggen.xml
>> -rw-r--r--. 1 root root 1170  2 nov.   2016 window.xml
>>
>> I think what you did was you *built* the new version of UHD, but never
>> actually installed it, via sudo make install, so when you are executing
>> bits and
>>    pieces from the built-but-not-yet-installed files, they're naturally
>> expecting to find config files, and xml files, etc, in their "natural"
>> places.
>>
>> You'll have to uninstall the UHD you already have, which was likely
>> installed from a  pre-packaged release (via a PPA?), and then run the
>>   sudo make install in the source tree.
>>
>>
>>
>> Le 23/03/2018 à 17:18, Marcus D. Leech via USRP-users a écrit :
>>
>> On 03/23/2018 11:30 AM, Matis Alun via USRP-users wrote:
>>
>> yes, I have  a /usr/share/uhd/rfnoc/blocks directory with several xml
>> files.
>>
>> matis
>>
>> Could you do an ls -l   on that directory and share it with us?
>>
>>
>> Le 23/03/2018 à 16:20, Marcus D. Leech via USRP-users a écrit :
>>
>> On 03/23/2018 10:32 AM, Matis Alun via USRP-users wrote:
>>
>> Hi,
>>
>> I've been working with N210 for a long time now with very successful
>> story.
>>
>> I recently buy an x300 with TwinRX and I try do run the demo examples (so
>> I am in the very first stage of testing).
>> I compiled the uhd 3.010.003 with succes and I can pinf the X300 at ip
>> 192.168.10.2.
>> I upload the fpga image usrp_x300_fpga_HG.bit on the board.
>>
>> Runing uhd_find_device gives:
>>
>> --------------------------------------------------
>> -- UHD Device 0
>> --------------------------------------------------
>> Device Address:
>>     type: x300
>>     addr: 192.168.10.2
>>     fpga: HG
>>     name:
>>     serial: 31402AC
>>     product: X300
>>
>> But runing uhd_usrp_probe gives:
>>
>> linux; GNU C++ version 7.3.1 20180303 (Red Hat 7.3.1-5); Boost_106400; 
>> UHD_003.010.003.000-0-unknown
>>
>> -- X300 initialization sequence...
>> -- Determining maximum frame size... 1472 bytes.
>> -- Setup basic communication...
>> -- Loading values from EEPROM...
>> -- Setup RF frontend clocking...
>> -- Radio 1x clock:200
>> Error: AssertionError: Failed to find a valid XML path for RFNoC blocks.
>> Try setting the enviroment variable UHD_RFNOC_DIR to the correct location
>> [ravard@starduck utils]$ ./uhd_usrp_probe --args 
>> "type=x300,addr=192.168.10.2"
>> linux; GNU C++ version 7.3.1 20180303 (Red Hat 7.3.1-5); Boost_106400; 
>> UHD_003.010.003.000-0-unknown
>>
>> -- X300 initialization sequence...
>> -- Determining maximum frame size... 1472 bytes.
>> -- Setup basic communication...
>> -- Loading values from EEPROM...
>> -- Setup RF frontend clocking...
>> -- Radio 1x clock:200
>> Error: AssertionError: Failed to find a valid XML path for RFNoC blocks.
>> Try setting the enviroment variable UHD_RFNOC_DIR to the correct location
>>
>> Can someone tell me what is the problem ?
>>
>> Thanks
>>
>> Matis
>>
>> Do you have a /usr/local/share/uhd/rfnoc/blocks directory?   Or a
>> /usr/share/uhd/rfnoc/blocks  directory?
>>
>>
>>
>>
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