To follow up, This seems to be the limit now that I have updated to UHD 4.1.0.1:
[ERROR] [0/Radio#0] Requesting too many samples in a single burst! Requested 18446744028430598144, maximum is 281474976710655. This occurs with the key arguments: --rx-rate 4.8e6 --rx-subdev "A:0 A:1 B:0 B:1" --rx-channels "0,1,2,3" --nsamps 2880000000 The nsamps value is for 10 minutes of recording (sample rate * 60 seconds * 10 minutes). Thanks, Jonathan ________________________________ From: Marcus D. Leech <patchvonbr...@gmail.com> Sent: Tuesday, August 10, 2021 4:58 AM To: Brian Padalino <bpadal...@gmail.com>; Jonathan Tobin <to...@augustusaero.com> Cc: usrp-users@lists.ettus.com <usrp-users@lists.ettus.com> Subject: Re: [USRP-users] Re: Too Many Samples in a Single Burst On 08/10/2021 10:34 AM, Brian Padalino wrote: On Tue, Aug 10, 2021 at 9:39 AM Jonathan Tobin <to...@augustusaero.com<mailto:to...@augustusaero.com>> wrote: Hi Brian, No - only intention would be to receive for 10 seconds and save data. What would you suggest? Modify the program to write out to a file on a high performance drive and receive smaller parts at a time from UHD. Brian I suspect what's going on is that the various streaming modes are implemented by the HARDWARE, and the control-word for "NUM_SAMPS_AND_DONE" prior to UHD 4.x was only 32 bits--looks like it's now 48 bits.
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