Hi Mr Pereira,
the directest access you get to samples in the N210 is the ethernet connection – and that
has no downside for GNSS applications, as the VITA49 samples fully represent the RF
signal, thanks to Shannon-Nyquist.
That is, of course, unless you start modifying the FPGA image of the N210, and make it a
completely different product. It's kind of unlikely you want to do that.
Greetings,
Marcus
On 03.01.23 14:25, Pedro Pereira wrote:
Greetings,
I have 2 USRP front-ends - N210 and N310. I want to develop a GNSS Receiver inside my
FGPA - xilinx ZCU102 - and use one of the USRP devices only as the front-end. The
receiver is quite large so I need an external board for all the signal processing chain.
The receiver has two implementations - software-only & hybrid. In hybrid mode some tasks
of the processing chain are accelerated in hardware.
The software-only version of the receiver running on my ZCU102 is able to configure the
N210 and read packets over ethernet correctly. However, with the hybrid version of the
receiver, I want to read the digital IQ samples from the front end directly in hardware.
For example, I am able to do this with the ZCU102 connected to FMComm2/3 using the FMC
connection on the FPGA. AD provides HDL reference designs to support communication
between multiple front-ends and multiple FPGAs.
Is there a similar way to read the digital samples directly in hardware using the N210?
The N210 only has the ethernet and a MIMO port.
Thanks in advance.
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