Hi Jonathan, At startup, the init_cal will always be conducted at 2.5GHz requiring an external LO at 5 GHz. After the init cal, then you can re-tune your external LO to twice the desired operating frequency. It wasn't clear to me from your comment if your external LO is initially configured to 5 GHz or to 2 GHz. If the latter, try with 5 GHz and if startup occurs correctly, retune it to 2 GHz after that point. Rob
On Wed, Nov 30, 2022 at 1:43 PM Jonathan Tobin <to...@augustusaero.com> wrote: > Hello all - I am trying to transmit a test waveform from an N310 using the > sample program tx_waveforms. When I set "tx_lo_source=external" I get the > error below. When I set it to internal, the program runs smoothly, but > there is no output. I am supplying an external LO at twice the desired > output frequency. I am using uhd 4.3.0.0. > > > ./tx_waveforms --args > "addr=192.168.10.2,master_clock_rate=153.6e6,tx_lo_source=external" --freq > 1e9 --gain 10 --bw 1e6 --rate 9.6e6 --subdev "A:1" --channels "0" > --wave-freq 100e3 > > Creating the usrp device with: > addr=192.168.10.2,master_clock_rate=153.6e6,tx_lo_source=external... > [INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501; > UHD_4.3.0.HEAD-0-g1f8fd345 > [INFO] [MPMD] Initializing 1 device(s) in parallel with args: > mgmt_addr=192.168.10.2,type=n3xx,product=n310,serial=3218B5F,name=ni-n3xx-3218B5F,fpga=HG,claimed=False,addr=192.168.10.2,master_clock_rate=153.6e6,tx_lo_source=external > [INFO] [MPM.PeriphManager] init() called with device args > `fpga=HG,master_clock_rate=153.6e6,mgmt_addr=192.168.10.2,name=ni-n3xx-3218B5F,product=n310,tx_lo_source=external,clock_source=internal,time_source=internal'. > [ERROR] [RPC] RuntimeError: MYKONOS_waitInitCals() returned an ARM error > > [ERROR] [MPM.RPCServer] init() failed with error: RuntimeError: > MYKONOS_waitInitCals() returned an ARM error > > Error: RuntimeError: Error during RPC call to `init'. Error message: > RuntimeError: MYKONOS_waitInitCals() returned an ARM error > > > > Thanks, > Jonathan > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-le...@lists.ettus.com >
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