Hi Robin,
Thanks for thinking about this. I do set the time source- in the python script
there is a line:
self.uhd_usrp_source_0.set_time_source("sfp0")
Robert
________________________________
From: Robin Coxe <[email protected]>
Sent: Monday, March 15, 2021 7:12:35 PM
To: Robert Clancy
Cc: [email protected]
Subject: Re: [USRP-users] WhiteRabbit switch with an N321
Hi Robert. I think your issue may be that you need to set the time source in
UHD to sfp0:
https://kb.ettus.com/Using_Ethernet-Based_Synchronization_on_the_USRP%E2%84%A2_N3xx_Devices
(Scroll down to the "System Configuration" section).
-Robin
On Mon, Mar 15, 2021 at 11:57 AM Robert Clancy
<[email protected]<mailto:[email protected]>> wrote:
I am trying to test a White Rabbit switch with an N321 radio but am failing to
be able to make a capture.
I have Gnuradio 3.8.0 installed and the UHD version is reported as
UHD_4.0.0.0-18-g83e878cf
This is the response from a probe:
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
UHD_4.0.0.0-18-g83e878cf
[INFO] [MPMD] Initializing 1 device(s) in parallel with args:
mgmt_addr=192.168.10.2,type=n3xx,product=n320,serial=31B36CF,claimed=False,addr=192.168.10.2
[INFO] [MPM.main] Launching USRP/MPM, version: 4.0.0.0-g90ce6062
[INFO] [MPM.main] Spawning RPC process...
[INFO] [MPM.PeriphManager] Device serial number: 31B36CF
[INFO] [MPM.Rhodium-0] Enabling LO distribution board
[INFO] [MPM.Rhodium-0] Successfully loaded all peripherals!
[INFO] [MPM.Rhodium-1] Successfully loaded all peripherals!
[INFO] [MPM.PeriphManager] Initialized 2 daughterboard(s).
[INFO] [MPM.PeriphManager] No QSFP board detected: Assuming it is disabled in
the device tree overlay (e.g., HG, XG images).
[INFO] [MPM.PeriphManager] init() called with device args
`clock_source=internal,time_source=internal'.
[INFO] [MPM.Rhodium-0] init() called with args
`clock_source=internal,time_source=internal'
[INFO] [MPM.Rhodium-1] init() called with args
`clock_source=internal,time_source=internal'
[INFO] [MPM.Rhodium-0.init.LMK04828] LMK initialized and locked!
[INFO] [MPM.Rhodium-1.init.LMK04828] LMK initialized and locked!
[INFO] [MPM.Rhodium-1.DAC37J82] DAC PLL Locked!
[INFO] [MPM.Rhodium-1.AD9695] ADC PLL Locked!
[INFO] [MPM.Rhodium-1.init] JESD204B Link Initialization & Training Complete
[INFO] [MPM.Rhodium-0.DAC37J82] DAC PLL Locked!
[INFO] [MPM.Rhodium-0.AD9695] ADC PLL Locked!
[INFO] [MPM.Rhodium-0.init] JESD204B Link Initialization & Training Complete
[INFO] [MPM.RPCServer] RPC server ready!
[INFO] [MPM.RPCServer] Spawning watchdog task...
[INFO] [MPM.PeriphManager] init() called with device args
`mgmt_addr=192.168.10.2,product=n320,clock_source=internal,time_source=internal'.
[INFO] [MPM.Rhodium-0] init() called with args
`mgmt_addr=192.168.10.2,product=n320,clock_source=internal,time_source=internal'
[INFO] [MPM.Rhodium-1] init() called with args
`mgmt_addr=192.168.10.2,product=n320,clock_source=internal,time_source=internal'
_____________________________________________________
/
| Device: N300-Series Device
| _____________________________________________________
| /
| | Mboard: ni-n3xx-31B36CF
| | dboard_0_pid: 338
| | dboard_0_serial: 3192EC4
| | dboard_1_pid: 338
| | dboard_1_serial: 3192EB9
| | eeprom_version: 3
| | fs_version: 20200914000806
| | mender_artifact: v4.0.0.0_n3xx
| | mpm_sw_version: 4.0.0.0-g90ce6062
| | pid: 16962
| | product: n320
| | rev: 7
| | rpc_connection: remote
| | serial: 31B36CF
| | type: n3xx
| | MPM Version: 3.0
| | FPGA Version: 8.0
| | FPGA git hash: be53058.clean
| |
| | Time sources: internal, external, gpsdo, sfp0
| | Clock sources: external, internal, gpsdo
| | Sensors: ref_locked, gps_locked, temp, fan, gps_gpgga, gps_sky,
gps_time, gps_tpv
| _____________________________________________________
| /
| | RFNoC blocks on this device:
| |
| | * 0/DDC#0
| | * 0/DDC#1
| | * 0/DUC#0
| | * 0/DUC#1
| | * 0/Radio#0
| | * 0/Radio#1
| | * 0/Replay#0
| _____________________________________________________
| /
| | Static connections on this device:
| |
| | * 0/SEP#0:0==>0/DUC#0:0
| | * 0/DUC#0:0==>0/Radio#0:0
| | * 0/Radio#0:0==>0/DDC#0:0
| | * 0/DDC#0:0==>0/SEP#0:0
| | * 0/SEP#1:0==>0/DUC#1:0
| | * 0/DUC#1:0==>0/Radio#1:0
| | * 0/Radio#1:0==>0/DDC#1:0
| | * 0/DDC#1:0==>0/SEP#1:0
| | * 0/SEP#2:0==>0/Replay#0:0
| | * 0/Replay#0:0==>0/SEP#2:0
| | * 0/SEP#3:0==>0/Replay#0:1
| | * 0/Replay#0:1==>0/SEP#3:0
| _____________________________________________________
| /
| | TX Dboard: dboard
| | _____________________________________________________
| | /
| | | TX Frontend: 0
| | | Name: Rhodium
| | | Antennas: TX/RX, RX2, CAL, TERM
| | | Freq range: 1.000 to 6000.000 MHz
| | | Gain range all: 0.0 to 60.0 step 1.0 dB
| | | Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz
| | | Connection Type:
| | | Uses LO offset: No
| _____________________________________________________
| /
| | RX Dboard: dboard
| | _____________________________________________________
| | /
| | | RX Frontend: 0
| | | Name: Rhodium
| | | Antennas: TX/RX, CAL, TERM
| | | Freq range: 1.000 to 6000.000 MHz
| | | Gain range all: 0.0 to 60.0 step 1.0 dB
| | | Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz
| | | Connection Type:
| | | Uses LO offset: No
| _____________________________________________________
| /
| | TX Dboard: dboard
| | _____________________________________________________
| | /
| | | TX Frontend: 0
| | | Name: Rhodium
| | | Antennas: TX/RX, RX2, CAL, TERM
| | | Freq range: 1.000 to 6000.000 MHz
| | | Gain range all: 0.0 to 60.0 step 1.0 dB
| | | Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz
| | | Connection Type:
| | | Uses LO offset: No
| _____________________________________________________
| /
| | RX Dboard: dboard
| | _____________________________________________________
| | /
| | | RX Frontend: 0
| | | Name: Rhodium
| | | Antennas: TX/RX, CAL, TERM
| | | Freq range: 1.000 to 6000.000 MHz
| | | Gain range all: 0.0 to 60.0 step 1.0 dB
| | | Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz
| | | Connection Type:
| | | Uses LO offset: No
I am using this firmware:
uhd_image_loader --args type=n3xx,addr=192.168.10.2
--fpga-path="/opt/gnuradio/v3.8.0.0/share/uhd/images/usrp_n320_fpga_WX.bit"
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
UHD_4.0.0.0-18-g83e878cf
[INFO] [MPMD] Initializing 1 device(s) in parallel with args:
mgmt_addr=192.168.10.2,type=n3xx,product=n320,serial=31B36CF,claimed=False,skip_init=1
[INFO] [MPMD] Claimed device without full initialization.
[INFO] [MPMD IMAGE LOADER] Starting update. This may take a while.
[INFO] [MPM.PeriphManager] Updating component `fpga'
[INFO] [MPM.PeriphManager] Updating component `dts'
[INFO] [MPM.RPCServer] Resetting peripheral manager.
[INFO] [MPM.PeriphManager] Device serial number: 31B36CF
[INFO] [MPM.Rhodium-0] Enabling LO distribution board
[INFO] [MPM.Rhodium-0] Successfully loaded all peripherals!
[INFO] [MPM.Rhodium-1] Successfully loaded all peripherals!
[INFO] [MPM.PeriphManager] Initialized 2 daughterboard(s).
[INFO] [MPM.PeriphManager] No QSFP board detected: Assuming it is disabled in
the device tree overlay (e.g., HG, XG images).
[INFO] [MPM.PeriphManager] init() called with device args
`clock_source=internal,time_source=internal'.
[INFO] [MPM.Rhodium-0] init() called with args
`clock_source=internal,time_source=internal'
[INFO] [MPM.Rhodium-1] init() called with args
`clock_source=internal,time_source=internal'
[INFO] [MPM.Rhodium-0.init.LMK04828] LMK initialized and locked!
[INFO] [MPM.Rhodium-1.init.LMK04828] LMK initialized and locked!
[INFO] [MPM.Rhodium-1.DAC37J82] DAC PLL Locked!
[INFO] [MPM.Rhodium-1.AD9695] ADC PLL Locked!
[INFO] [MPM.Rhodium-1.init] JESD204B Link Initialization & Training Complete
[INFO] [MPM.Rhodium-0.DAC37J82] DAC PLL Locked!
[INFO] [MPMD IMAGE LOADER] Update component function succeeded.
[INFO] [MPM.Rhodium-0.AD9695] ADC PLL Locked!
[INFO] [MPM.Rhodium-0.init] JESD204B Link Initialization & Training Complete
What I think are the relevant parts from a simple script to make a capture:
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 12288000
##################################################
# Blocks
##################################################
self.uhd_usrp_source_0 = uhd.usrp_source(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
args='addr=192.168.10.2',
channels=list(range(0,1)),
),
)
## WhiteRabbit addition
#self.uhd_usrp_source_0.set_clock_rate(200000000)
self.uhd_usrp_source_0.set_antenna("TX/RX")
print("Master clock rate set to:
",self.uhd_usrp_source_0.get_clock_rate())
print("Times sources are ",self.uhd_usrp_source_0.get_time_sources(0))
print("Sample rates is ",self.uhd_usrp_source_0.get_samp_rates().stop())
print("Antenna is ",self.uhd_usrp_source_0.get_antenna())
self.uhd_usrp_source_0.set_clock_source("internal")
self.uhd_usrp_source_0.set_time_source("sfp0")
print("Time source is ",self.uhd_usrp_source_0.get_time_source(0))
###
self.uhd_usrp_source_0.set_center_freq(75000100, 0)
print("Tuned to ",self.uhd_usrp_source_0.get_center_freq(0))
self.uhd_usrp_source_0.set_gain(0, 0)
self.uhd_usrp_source_0.set_antenna('TX/RX', 0)
self.uhd_usrp_source_0.set_samp_rate(samp_rate)
And then the error:
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
UHD_4.0.0.0-18-g83e878cf
[INFO] [MPMD] Initializing 1 device(s) in parallel with args:
mgmt_addr=192.168.10.2,type=n3xx,product=n320,serial=31B36CF,claimed=False,addr=192.168.10.2
[INFO] [MPM.PeriphManager] init() called with device args
`mgmt_addr=192.168.10.2,product=n320,clock_source=internal,time_source=internal'.
[INFO] [MPM.Rhodium-0] init() called with args
`mgmt_addr=192.168.10.2,product=n320,clock_source=internal,time_source=internal'
[INFO] [MPM.Rhodium-1] init() called with args
`mgmt_addr=192.168.10.2,product=n320,clock_source=internal,time_source=internal'
Master clock rate set to: 245760000.0
Times sources are ('internal', 'external', 'gpsdo', 'sfp0')
Sample rates is 245760000.0
Antenna is TX/RX
[INFO] [MPM.Rhodium-0] Re-initializing daughter board. This may take some time.
[INFO] [MPM.Rhodium-0] init() called with args
`mgmt_addr=192.168.10.2,product=n320,clock_source=internal,time_source=sfp0,skip_rfic=None,master_clock_rate=245760000.0,ref_clk_freq=25000000.0'
[ERROR] [RPC] TDC Failed to reset.
Traceback (most recent call last):
File "./TimeDomainDisplay.py", line 212, in <module>
main()
File "./TimeDomainDisplay.py", line 188, in main
tb = top_block_cls()
File "./TimeDomainDisplay.py", line 95, in __init__
self.uhd_usrp_source_0.set_time_source("sfp0")
File
"/opt/gnuradio/v3.8.0.0/lib/python3/dist-packages/gnuradio/uhd/uhd_swig.py",
line 4577, in set_time_source
return _uhd_swig.usrp_source_sptr_set_time_source(self, source, mboard)
RuntimeError: RuntimeError: Error during RPC call to `set_time_source'. Error
message: TDC Failed to reset.
[INFO] [MPM.Rhodium-0.init.LMK04828] LMK initialized and locked!
[ERROR] [MPM.Sync-0] TDC Failed to Reset! Check your clocks! Status: 0x0
[ERROR] [MPM.RPCServer] Uncaught exception in method set_time_source :TDC
Failed to reset.
Traceback (most recent call last):
File "/usr/lib/python3.7/site-packages/usrp_mpm/rpc_server.py", line 186, in
new_claimed_function
return function(*args)
File "/usr/lib/python3.7/site-packages/usrp_mpm/periph_manager/n3xx.py", line
596, in set_time_source
self.set_sync_source(source)
File "/usr/lib/python3.7/site-packages/usrp_mpm/periph_manager/n3xx.py", line
696, in set_sync_source
skip_rfic=args.get('skip_rfic', None)
File "/usr/lib/python3.7/site-packages/usrp_mpm/dboard_manager/rhodium.py",
line 478, in update_ref_clock_freq
self._reinit(self.master_clock_rate)
File "/usr/lib/python3.7/site-packages/usrp_mpm/dboard_manager/rhodium.py",
line 438, in _reinit
self.init(args)
File "/usr/lib/python3.7/site-packages/usrp_mpm/dboard_manager/rhodium.py",
line 341, in init
init_result = RhodiumInitManager(self, self._spi_ifaces).init(args)
File "/usr/lib/python3.7/site-packages/usrp_mpm/dboard_manager/rh_init.py",
line 344, in init
args)
File "/usr/lib/python3.7/site-packages/usrp_mpm/dboard_manager/rh_init.py",
line 100, in _sync_db_clock
target_offset=trace_delay_offset))
File "/usr/lib/python3.7/site-packages/usrp_mpm/cores/tdc_sync.py", line 201,
in run
self.configure(force=True)
File "/usr/lib/python3.7/site-packages/usrp_mpm/cores/tdc_sync.py", line 254,
in configure
raise RuntimeError("TDC Failed to reset.")
RuntimeError: TDC Failed to reset.
Can anyone shed any light on what is going on?
Has anyone actually got an Ettus radio working with the WX firmware and a White
Rabbit switch?
FWIW, the WR switch appears happy. I've walked its SNMP tree and all seems
well. It is operating in Grandmaster mode with the one N321 hanging off its
first port.
Robert
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