Re: Connection error between RFNoC and gnu radio blocks.

[Lakshmi Poola]

Thanks for giving the datatypes of the blocks and I apologise for the
late reply.
But, the problem is it is not possible to match the data types of the
blocks on gnuradio, and changing the values in the grc file, also doesn't
make any difference.

How and where to incorporate the data types to be able to run the example.

Thanks.

On Fri, Nov 4, 2022 at 3:36 PM Lakshmi Poola  wrote:

> Thanks for giving the datatypes of the blocks and I apologise for the
> late reply.
> But, the problem is it is not possible to match the data types of the
> blocks on gnuradio, and changing the  values in the grc file, also doesn't
> make any difference.
>
> How and where to incorporate the datatypes to be able to run the example.
>
> Thanks.
>
> On Sun, 23 Oct 2022, 00:39 wcm275,  wrote:
>
>> C fcc fcc"fcc"fcc" [""Fcc
>>
>>
>>
>> Sent from my Verizon, Samsung Galaxy smartphone
>>
>>
>>  Original message 
>> From: Lakshmi Poola 
>> Date: 10/22/22 1:24 AM (GMT-05:00)
>> To: discuss-gnuradio@gnu.org
>> Subject: Connection error between RFNoC and gnu radio blocks.
>>
>> Hello,
>>
>> I am using GNU radio 3.8 version, UHD 3.15, and Ubuntu 18.04. gr-ettus is
>> built and the required FPGA image is built and flashed onto the USRP. But,
>> when the blocks are used the connection between the gnu radio block and the
>> rfnoc block is not working. The same issue is happening when I am trying to
>> run any of the examples from the gr-ettus folder. The grc image is
>> attached. A datatype mismatch is there between the blocks. How to solve
>> this issue. Thanks in advance for any help.
>>
>> Lakshmi
>>
>

Questions about the IF signal processing structure of USRP N210

[Ze Zhang]

Hi,

I am using the URSP N210, and have some questions regarding the internal IF
(intermediate frequency) signal processing structure of USRP N210.

In the websites, the information mentioned that the common structure for
all USRPs is the IF bandpass sampling structure, and in the previous
question(
https://lists.gnu.org/archive/html/discuss-gnuradio/2013-09/msg7.html)
it was mentioned that USRP N210 is the common second generation USRP
structure.

So is there any difference between the second-generation USRP structure and
the digital IF transceiver structure? Also, what is the IF frequency range
of the RF signal received by the N210 after analog down-conversion?

Is it possible to get the value of the local oscillator frequency or the
value of IF frequency by the setting carrier frequency?