Discussion and technical support related to USRP, UHD, RFNoC
View all threadsCould some help me if this is working as expected?
./bin/txrx_loopback_to_file --tx-args addr=192.168.10.2 --rx-args addr=192.168.10.2 --tx-rate 100e6 --rx-rate 6.5e6 --tx-freq 20e6 --rx-freq 18e6
Creating the transmit usrp device with: addr=192.168.10.2...
[INFO] [UHD] linux; GNU C++ version 8.5.0 20210514 (Red Hat 8.5.0-20); Boost_106600; UHD_4.2.0.1-0-g321295fb
[INFO] [X300] X300 initialization sequence...
[INFO] [X300] Maximum frame size: 1472 bytes.
[INFO] [GPS] Found an internal GPSDO: LC_XO, Firmware Rev 1.101
[INFO] [X300] Radio 1x clock: 200 MHz
[INFO] [0/KeepOneInN#0] Setting default MTU forward policy.
Creating the receive usrp device with: addr=192.168.10.2...
Using TX Device: Single USRP:
Device: X-Series Device
Mboard 0: X310
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: BasicRX (0)
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: BasicRX (1)
RX Channel: 2
RX DSP: 2
RX Dboard: B
RX Subdev: Unknown (0xffff) - 0
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: BasicTX (0)
TX Channel: 1
TX DSP: 1
TX Dboard: B
TX Subdev: Unknown (0xffff) - 0
Using RX Device: Single USRP:
Device: X-Series Device
Mboard 0: X310
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: BasicRX (0)
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: BasicRX (1)
RX Channel: 2
RX DSP: 2
RX Dboard: B
RX Subdev: Unknown (0xffff) - 0
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: BasicTX (0)
TX Channel: 1
TX DSP: 1
TX Dboard: B
TX Subdev: Unknown (0xffff) - 0
Setting TX Rate: 100.000000 Msps...
Actual TX Rate: 100.000000 Msps...
Setting RX Rate: 6.500000 Msps...
[WARNING] [0/DDC#0] The requested decimation is odd; the user should expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8 will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [0/DDC#0] The requested decimation is odd; the user should expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8 will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [MULTI_USRP] Could not set RX rate to 6.500 MHz. Actual rate is 6.452 MHz
[WARNING] [0/DDC#0] The requested decimation is odd; the user should expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8 will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [0/DDC#0] The requested decimation is odd; the user should expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8 will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [MULTI_USRP] Could not set RX rate to 6.500 MHz. Actual rate is 6.452 MHz
[WARNING] [0/DDC#1] The requested decimation is odd; the user should expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8 will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [0/DDC#1] The requested decimation is odd; the user should expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8 will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [MULTI_USRP] Could not set RX rate to 6.500 MHz. Actual rate is 6.452 MHz
Actual RX Rate: 6.451613 Msps...
Setting TX Freq: 20.000000 MHz...
Actual TX Freq: 20.000005 MHz...
Setting RX Freq: 18.000000 MHz...
Actual RX Freq: 17.999995 MHz...
[WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping.
Press Ctrl + C to stop streaming...
Setting device timestamp to 0...
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU^CUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Done!
On 06/03/2024 13:56, yguruprasad@umass.edu wrote:
Could some help me if this is working as expected?
./bin/txrx_loopback_to_file --tx-args addr=192.168.10.2 --rx-args
addr=192.168.10.2 --tx-rate 100e6 --rx-rate 6.5e6 --tx-freq 20e6
--rx-freq 18e6
Creating the transmit usrp device with: addr=192.168.10.2...
[INFO] [UHD] linux; GNU C++ version 8.5.0 20210514 (Red Hat 8.5.0-20);
Boost_106600; UHD_4.2.0.1-0-g321295fb
[INFO] [X300] X300 initialization sequence...
[INFO] [X300] Maximum frame size: 1472 bytes.
[INFO] [GPS] Found an internal GPSDO: LC_XO, Firmware Rev 1.101
[INFO] [X300] Radio 1x clock: 200 MHz
[INFO] [0/KeepOneInN#0] Setting default MTU forward policy.
Creating the receive usrp device with: addr=192.168.10.2...
Using TX Device: Single USRP:
Device: X-Series Device
Mboard 0: X310
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: BasicRX (0)
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: BasicRX (1)
RX Channel: 2
RX DSP: 2
RX Dboard: B
RX Subdev: Unknown (0xffff) - 0
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: BasicTX (0)
TX Channel: 1
TX DSP: 1
TX Dboard: B
TX Subdev: Unknown (0xffff) - 0
Using RX Device: Single USRP:
Device: X-Series Device
Mboard 0: X310
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: BasicRX (0)
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: BasicRX (1)
RX Channel: 2
RX DSP: 2
RX Dboard: B
RX Subdev: Unknown (0xffff) - 0
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: BasicTX (0)
TX Channel: 1
TX DSP: 1
TX Dboard: B
TX Subdev: Unknown (0xffff) - 0
Setting TX Rate: 100.000000 Msps...
Actual TX Rate: 100.000000 Msps...
Setting RX Rate: 6.500000 Msps...
[WARNING] [0/DDC#0] The requested decimation is odd; the user should
expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable
by 8 will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [0/DDC#0] The requested decimation is odd; the user should
expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable
by 8 will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [MULTI_USRP] Could not set RX rate to 6.500 MHz. Actual rate
is 6.452 MHz
[WARNING] [0/DDC#0] The requested decimation is odd; the user should
expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable
by 8 will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [0/DDC#0] The requested decimation is odd; the user should
expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable
by 8 will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [MULTI_USRP] Could not set RX rate to 6.500 MHz. Actual rate
is 6.452 MHz
[WARNING] [0/DDC#1] The requested decimation is odd; the user should
expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable
by 8 will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [0/DDC#1] The requested decimation is odd; the user should
expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable
by 8 will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [MULTI_USRP] Could not set RX rate to 6.500 MHz. Actual rate
is 6.452 MHz
Actual RX Rate: 6.451613 Msps...
Setting TX Freq: 20.000000 MHz...
Actual TX Freq: 20.000005 MHz...
Setting RX Freq: 18.000000 MHz...
Actual RX Freq: 17.999995 MHz...
[WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping.
Press Ctrl + C to stop streaming...
Setting device timestamp to 0...
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU^CUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Done!
USRP-users mailing list -- usrp-users@lists.ettus.com
To unsubscribe send an email to usrp-users-leave@lists.ettus.com
I'll note that a sample-rate of 6.5e6 is NOT exactly possible with the
X310. The configured sample rates MUST be a proper fraction
of the master clock rate, which is 200e6 by default on the X310:
https://kb.ettus.com/X300/X310#Clocking_and_Sampling_Rates
So, UHD is rounding your commanded sample rate to the nearest possible
sample rate.
You're asking for a TX rate of 100e6, which, clearly, your host isn't
able to "keep up" with, since it's issuing large amounts of
"U" (under-run) which means your host, on average, is failing to
deliver samples to the radio at the commanded
sample rate.
The underflows you're getting mean your host PC isn't providing samples fast
enough for the rate the radio is consuming them and it's underrunning the TX
buffer. Likely there isn't enough bandwidth between the host PC and the
radio to support 100 Msps. There is a pretty good discussion of bandwidth
and sampling rates here:
https://kb.ettus.com/About_USRP_Bandwidths_and_Sampling_Rates
Very respectfully,
Joshua White
Precision Timing Systems Engineer
Engineering & Support Solutions Directorate
http://www.riversideresearch.org/ www.riversideresearch.org
T: 937.986.3153 | F: 937.431.3811
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original message.
From: yguruprasad@umass.edu yguruprasad@umass.edu
Sent: Wednesday, March 6, 2024 1:56 PM
To: usrp-users@lists.ettus.com
Subject: [USRP-users] X310
CAUTION: This email is from outside of Riverside Research. Be careful when
clicking links or opening attachments unless you know the content is safe.
Could some help me if this is working as expected?
./bin/txrx_loopback_to_file --tx-args addr=192.168.10.2 --rx-args
addr=192.168.10.2 --tx-rate 100e6 --rx-rate 6.5e6 --tx-freq 20e6 --rx-freq
18e6
Creating the transmit usrp device with: addr=192.168.10.2...
[INFO] [UHD] linux; GNU C++ version 8.5.0 20210514 (Red Hat 8.5.0-20);
Boost_106600; UHD_4.2.0.1-0-g321295fb
[INFO] [X300] X300 initialization sequence...
[INFO] [X300] Maximum frame size: 1472 bytes.
[INFO] [GPS] Found an internal GPSDO: LC_XO, Firmware Rev 1.101
[INFO] [X300] Radio 1x clock: 200 MHz
[INFO] [0/KeepOneInN#0] Setting default MTU forward policy.
Creating the receive usrp device with: addr=192.168.10.2...
Using TX Device: Single USRP:
Device: X-Series Device
Mboard 0: X310
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: BasicRX (0)
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: BasicRX (1)
RX Channel: 2
RX DSP: 2
RX Dboard: B
RX Subdev: Unknown (0xffff) - 0
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: BasicTX (0)
TX Channel: 1
TX DSP: 1
TX Dboard: B
TX Subdev: Unknown (0xffff) - 0
Using RX Device: Single USRP:
Device: X-Series Device
Mboard 0: X310
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: BasicRX (0)
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: BasicRX (1)
RX Channel: 2
RX DSP: 2
RX Dboard: B
RX Subdev: Unknown (0xffff) - 0
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: BasicTX (0)
TX Channel: 1
TX DSP: 1
TX Dboard: B
TX Subdev: Unknown (0xffff) - 0
Setting TX Rate: 100.000000 Msps...
Actual TX Rate: 100.000000 Msps...
Setting RX Rate: 6.500000 Msps...
[WARNING] [0/DDC#0] The requested decimation is odd; the user should expect
passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [0/DDC#0] The requested decimation is odd; the user should expect
passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [MULTI_USRP] Could not set RX rate to 6.500 MHz. Actual rate is
6.452 MHz
[WARNING] [0/DDC#0] The requested decimation is odd; the user should expect
passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [0/DDC#0] The requested decimation is odd; the user should expect
passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [MULTI_USRP] Could not set RX rate to 6.500 MHz. Actual rate is
6.452 MHz
[WARNING] [0/DDC#1] The requested decimation is odd; the user should expect
passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [0/DDC#1] The requested decimation is odd; the user should expect
passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [MULTI_USRP] Could not set RX rate to 6.500 MHz. Actual rate is
6.452 MHz
Actual RX Rate: 6.451613 Msps...
Setting TX Freq: 20.000000 MHz...
Actual TX Freq: 20.000005 MHz...
Setting RX Freq: 18.000000 MHz...
Actual RX Freq: 17.999995 MHz...
[WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping.
Press Ctrl + C to stop streaming...
Setting device timestamp to 0...
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
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UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
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Done!
The IP address of 192.168.10.2 and the MTU size of 1472 indicate that your
link is a 1Gb link. The max rate this can support is 25MS/s. You will need
to connect at 10Gbe if you want to run at 100MS/s.
Rob
On Wed, Mar 6, 2024 at 2:31 PM White, Joshua J <
jjwhite@riversideresearch.org> wrote:
The underflows you’re getting mean your host PC isn’t providing samples
fast enough for the rate the radio is consuming them and it’s underrunning
the TX buffer. Likely there isn’t enough bandwidth between the host PC and
the radio to support 100 Msps. There is a pretty good discussion of
bandwidth and sampling rates here:
https://kb.ettus.com/About_USRP_Bandwidths_and_Sampling_Rates
Very respectfully,
Joshua White
Precision Timing Systems Engineer
Engineering & Support Solutions Directorate
T: 937.986.3153 | F: 937.431.3811
This e-mail message, including any attachments, is for the sole use of the
intended recipient(s) and may contain proprietary, confidential or
privileged information or otherwise be protected by law. Any unauthorized
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intended recipient, please notify the sender and destroy all copies and the
original message.
From: yguruprasad@umass.edu yguruprasad@umass.edu
Sent: Wednesday, March 6, 2024 1:56 PM
To: usrp-users@lists.ettus.com
Subject: [USRP-users] X310
CAUTION: This email is from outside of Riverside Research. Be careful
when clicking links or opening attachments unless you know the content is
safe.
Could some help me if this is working as expected?
./bin/txrx_loopback_to_file --tx-args addr=192.168.10.2 --rx-args
addr=192.168.10.2 --tx-rate 100e6 --rx-rate 6.5e6 --tx-freq 20e6 --rx-freq
18e6
Creating the transmit usrp device with: addr=192.168.10.2...
[INFO] [UHD] linux; GNU C++ version 8.5.0 20210514 (Red Hat 8.5.0-20);
Boost_106600; UHD_4.2.0.1-0-g321295fb
[INFO] [X300] X300 initialization sequence...
[INFO] [X300] Maximum frame size: 1472 bytes.
[INFO] [GPS] Found an internal GPSDO: LC_XO, Firmware Rev 1.101
[INFO] [X300] Radio 1x clock: 200 MHz
[INFO] [0/KeepOneInN#0] Setting default MTU forward policy.
Creating the receive usrp device with: addr=192.168.10.2...
Using TX Device: Single USRP:
Device: X-Series Device
Mboard 0: X310
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: BasicRX (0)
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: BasicRX (1)
RX Channel: 2
RX DSP: 2
RX Dboard: B
RX Subdev: Unknown (0xffff) - 0
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: BasicTX (0)
TX Channel: 1
TX DSP: 1
TX Dboard: B
TX Subdev: Unknown (0xffff) - 0
Using RX Device: Single USRP:
Device: X-Series Device
Mboard 0: X310
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: BasicRX (0)
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: BasicRX (1)
RX Channel: 2
RX DSP: 2
RX Dboard: B
RX Subdev: Unknown (0xffff) - 0
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: BasicTX (0)
TX Channel: 1
TX DSP: 1
TX Dboard: B
TX Subdev: Unknown (0xffff) - 0
Setting TX Rate: 100.000000 Msps...
Actual TX Rate: 100.000000 Msps...
Setting RX Rate: 6.500000 Msps...
[WARNING] [0/DDC#0] The requested decimation is odd; the user should
expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [0/DDC#0] The requested decimation is odd; the user should
expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [MULTI_USRP] Could not set RX rate to 6.500 MHz. Actual rate is
6.452 MHz
[WARNING] [0/DDC#0] The requested decimation is odd; the user should
expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [0/DDC#0] The requested decimation is odd; the user should
expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [MULTI_USRP] Could not set RX rate to 6.500 MHz. Actual rate is
6.452 MHz
[WARNING] [0/DDC#1] The requested decimation is odd; the user should
expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [0/DDC#1] The requested decimation is odd; the user should
expect passband CIC rolloff.
Select an even decimation to ensure that a halfband filter is enabled.
Decimations factorable by 4 will enable 2 halfbands, those factorable by 8
will enable 3 halfbands.
decimation = dsp_rate/samp_rate -> 31
[WARNING] [MULTI_USRP] Could not set RX rate to 6.500 MHz. Actual rate is
6.452 MHz
Actual RX Rate: 6.451613 Msps...
Setting TX Freq: 20.000000 MHz...
Actual TX Freq: 20.000005 MHz...
Setting RX Freq: 18.000000 MHz...
Actual RX Freq: 17.999995 MHz...
[WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping.
Press Ctrl + C to stop streaming...
Setting device timestamp to 0...
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU^CUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Done!
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