Hello,
In trying to test the ‘rx_multi_samples’ example with all four channels on an
n310. I run into an error of “Requesting too many samples in a single burst”
when I attempt a longer record (really anything over a few seconds). Seems to
be my nsamps value, but I am unsure how to remedy the issue. Below is my
argument and the terminal output for an attempt to receive for 10 seconds:
./rx_multi_samples --args
"type=n3xx,addr=192.168.10.2,time_source=gpsdo,clock_source=gpsdo" --rate
6.25e6 --subdev "A:0 A:1 B:0 B:1" --channels "0,1,2,3" --nsamps 625000000
Creating the usrp device with:
type=n3xx,addr=192.168.10.2,time_source=gpsdo,clock_source=gpsdo...
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
UHD_3.15.0.HEAD-0-gaea0e2de
[INFO] [MPMD] Initializing 1 device(s) in parallel with args:
mgmt_addr=192.168.10.2,type=n3xx,product=n310,serial=3218B5F,claimed=False,addr=192.168.10.2,time_source=gpsdo,clock_source=gpsdo
[INFO] [MPM.PeriphManager] init() called with device args
`clock_source=gpsdo,time_source=gpsdo,product=n310,mgmt_addr=192.168.10.2'.
[INFO] [0/Replay_0] Initializing block control (NOC ID: 0x4E91A00000000004)
[INFO] [0/Radio_0] Initializing block control (NOC ID: 0x12AD100000011312)
[INFO] [0/Radio_1] Initializing block control (NOC ID: 0x12AD100000011312)
[INFO] [0/DDC_0] Initializing block control (NOC ID: 0xDDC0000000000000)
[INFO] [0/DDC_1] Initializing block control (NOC ID: 0xDDC0000000000000)
[INFO] [0/DUC_0] Initializing block control (NOC ID: 0xD0C0000000000002)
[INFO] [0/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000002)
[INFO] [0/FIFO_0] Initializing block control (NOC ID: 0xF1F0000000000000)
[INFO] [0/FIFO_1] Initializing block control (NOC ID: 0xF1F0000000000000)
[INFO] [0/FIFO_2] Initializing block control (NOC ID: 0xF1F0000000000000)
[INFO] [0/FIFO_3] Initializing block control (NOC ID: 0xF1F0000000000000)
Using Device: Single USRP:
Device: N300-Series Device
Mboard 0: ni-n3xx-3218B5F
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: Magnesium
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: Magnesium
RX Channel: 2
RX DSP: 0
RX Dboard: B
RX Subdev: Magnesium
RX Channel: 3
RX DSP: 1
RX Dboard: B
RX Subdev: Magnesium
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: Magnesium
TX Channel: 1
TX DSP: 1
TX Dboard: A
TX Subdev: Magnesium
TX Channel: 2
TX DSP: 0
TX Dboard: B
TX Subdev: Magnesium
TX Channel: 3
TX DSP: 1
TX Dboard: B
TX Subdev: Magnesium
Setting RX Rate: 6.250000 Msps...
Actual RX Rate: 6.250000 Msps...
Setting device timestamp to 0...
Begin streaming 625000000 samples, 1.500000 seconds in the future...
[ERROR] [RFNOC RADIO] Requesting too many samples in a single burst! Requested
12500000000, maximum is 268435455.
[INFO] [RFNOC RADIO] Note that a decimation block will increase the number of
samples per burst by the decimation factor. Your application may have requested
fewer samples.
Error: ValueError: Requested too many samples in a single burst.
Thanks,
Jonathan
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