I fixed all the bugs but the result remained the same. ((
вт, 26 окт. 2021 г. в 04:14, Jonathon Pendlum <jonathon.pend...@ettus.com>:
> Hi Ivan,
>
> Ming is correct. You need to modify this line:
>
> - { srcblk: window0, srcport: out_0, dstblk: fft0, dstport: *in0* }
>
> to
>
> - { srcblk: window0, srcport: out_0, dstblk: fft0, dstport: *in_0* }
>
> Jonathon
>
> On Sun, Oct 24, 2021 at 4:04 PM Ming You <m....@lboro.ac.uk> wrote:
>
>> Hi Ivan,
>>
>> I think you might also check the typos, as I think for the fft0 module
>> from Ettus should have input port name "in_0" and output port name "out_0",
>> unless you've modified it.
>>
>> Hope this helps and good luck!
>>
>> Thanks,
>> Ming
>>
>> ________________________________________
>> From: Ivan Zahartchuk <adray0...@gmail.com>
>> Sent: 24 October 2021 17:40
>> To: Marcus D. Leech
>> Cc: discuss-gnuradio; usrp-users
>> Subject: [USRP-users] Re: Fwd: Adding a Window block to an RFNOC graph
>>
>> ** THIS MESSAGE ORIGINATED OUTSIDE LOUGHBOROUGH UNIVERSITY **
>>
>> Be wary of links or attachments, especially if the email is unsolicited
>> or you don't recognise the sender's email address.
>>
>> I read the manual. And I tried to do everything according to the
>> instructions and existing examples. The yaml source file also uses
>> x300_radio block
>>
>> вс, 24 окт. 2021 г. в 18:17, Marcus D. Leech <patchvonbr...@gmail.com
>> <mailto:patchvonbr...@gmail.com>>:
>> On 2021-10-23 5:58 p.m., Ivan Zahartchuk wrote:
>>
>> I want to create FPGA firmware for USRP E310 with window function but I
>> get the error I described above. My yaml file is also attached above. I
>> need to do windowing and FFT on the FPGA side. And understand why FFT
>> returns zero values even when it is configured to produce complex data.
>>
>> [image.png]
>>
>> пт, 22 окт. 2021 г. в 17:55, Marcus D. Leech <patchvonbr...@gmail.com
>> <mailto:patchvonbr...@gmail.com>>:
>> On 2021-10-22 6:05 a.m., Ivan Zahartchuk wrote:
>>
>> Yes I am setting fft for magnitudes. On the front side, I am doing a log.
>> I perfectly understand where infinity comes from. I don’t understand why
>> the FFT returns 0. But how can I configure the Window?
>>
>> What does uhd_usrp_probe show in the "RFNOC Blocks" section on this
>> device?
>>
>> I think the window RFNOC function in GNu Radio takes a list of the window
>> values as a parameter--you can populate that with any of the window.*
>> functions
>> within Gnu Radio.
>>
>>
>> пт, 22 окт. 2021 г. в 01:51, Marcus D. Leech <patchvonbr...@gmail.com
>> <mailto:patchvonbr...@gmail.com>>:
>> On 2021-10-21 6:40 p.m., Ivan Zahartchuk wrote:
>>
>>
>> Hello, I have a problem that when receiving samples from the USRP E310
>> board, after the FFT block at low gain, zero values are received. After
>> that I log them and get infinity. I wanted to figure out what the problem
>> is, but I have no idea, maybe the Window block will fix the situation. But
>> when building my yaml file, I get the error:
>> [ERR] 2 Unresolved connection(s)
>> [ERR] (window0-out_0 -> fft0-in0)
>> [ERR] (fft0-out_0 -> ep1-in_0)
>> [INF] (('radio0', 'ctrl_port', 'master'),)
>> [INF] (('radio0', 'time_keeper', 'listener'),)
>> [INF] (('radio0', 'x300_radio', 'slave'),)
>> [INF] (('_device_', 'ctrlport_radio', 'slave'),)
>> [INF] (('_device_', 'time_keeper', 'broadcaster'),)
>> [INF] (('_device_', 'x300_radio', 'master'),)
>> Please tell me what could be the problem and how can I add the Window
>> block to my image?
>>
>>
>>
>>
>>
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>>
>>
>> Do you have your FFT configured for log output? Because the logarithm of
>> zero is undefined.
>>
>>
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>> usrp-us...@lists.ettus.com>
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>> usrp-users-le...@lists.ettus.com>
>>
>> I noticed looking at your .yaml file that it references x300_radio
>> blocks, and since this is an E310, that may not be appropriate? I know
>> that there have
>> historically been considerable differences between the X300 RFNOC radio
>> blocks and those for E310.
>>
>> _______________________________________________
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>> To unsubscribe send an email to usrp-users-le...@lists.ettus.com
>>
>
