Thanks for the response Marcus. This looks like it is converting the wire format to the host format.
I was wondering about a bit before that when the A2D delivers to the FPGA if there was any logic within that performed any mapping (lets assume I asked for sc16 samples with a 12 bit A2D)… The other Marcus also brought up that there is some futzing going on as well because typically the A2D sees more BW than the requested sample rate, etc… My guess is every radio is different and you need to get into the nickers of the firmware/A2D interface to understand exactly what is going on… From: Marcus Müller <marcus.muel...@ettus.com> Sent: Friday, April 21, 2023 8:56 AM To: usrp-users@lists.ettus.com Subject: [USRP-users] Re: A2D bit depth vs IQ External Email Alert This email has been sent from an account outside of the BAE Systems network. Please treat the email with caution, especially if you are requested to click on a link, decrypt/open an attachment, or enable macros. For further information on how to spot phishing, access “Cybersecurity OneSpace Page” and report phishing by clicking the button “Report Phishing” on the Outlook toolbar. Hi Bob, there's no saturation flag coming from the hardware. The conversion is done within UHD running on your host machine, and the source files you'd want to look into are all in uhd/host/lib/convert in the UHD source code. Best regards, Marcus On 20.04.23 18:34, Tillson, Bob (US) via USRP-users wrote: Hello peeps, Just wondering if anyone could point me to where the mapping between bits and IQ takes place. Curious if the strategy is the same across platforms even though bit depth varies (b205: 12 bits, X310: 15 bits, N310: 16 bits, X410: 12 bits…). The above info in general would be useful, what I am really looking to do is spot saturation from the IQ only since I don’t know of any other place where something like the saturation flag is passed through. Any thought would be greatly appreciated. Thanks, _______________________________________________ USRP-users mailing list -- usrp-users@lists.ettus.com<mailto:usrp-users@lists.ettus.com> To unsubscribe send an email to usrp-users-le...@lists.ettus.com<mailto:usrp-users-le...@lists.ettus.com>
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