Re: Endian-ness of USRP x410 device

Hi Jons,

On 2025-11-26 9:17 AM, Jons wrote:
> Hi all,
> This is a specific question about USRP devices and I am posting it here because I am
> unable to send it to the usrp-users mail chain.

Uh, I'm not with Ettus anymore, but that's no good. All you should need to do is send an
email from your email address to usrp-users-join@lists.ettus.com ; after you've gotten a
confirmation email and confirmed, you should be able to post there.

> I am trying to integrate a custom noc
> block into the x410 device and when going through the email archive and a doc in the
> github repo I saw that the OTW data transmission is in Big Endian.

I'll go with: that's a time-honoured tradition :D

> Can someone help me out
> in understanding how it will affect a noc block?

Not at all – you're not interfacing with the network directly, but with your nocshell, and
your verilog module / VHDL arch sees the sample data as sample-wide array (CHDR_W is the
naming convention for the width parameter, if you want to look through the source code of
Ettus' blocks), typically.

Best,
Marcus