On 2022-10-18 19:41, Jonathan Pratt wrote:
Hi
  We are trying to talk to an x310. Access to the device is limited to the 
ethernet connection.
The message we get back when starting a gnuradio flow graph is
[ERROR] [RFNOC::GRAPH] Error during initialization of block 0/Radio#0!
[ERROR] [RFNOC::GRAPH] Caught exception while initializing graph: RuntimeError: 
self_cal_adc_capture_delay: Self calibration failed. Convergence error.

The X310 has ONE TwinRx RF Daughterboard attached.

Can someone please indicate what the error means and suggest a workaround? 
Please ignore any prefix that we have added

thanks - JP
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What version of UHD are you using?  What version of Gnu Radio?

I've been using an X310 with UHD 4.1.0.5 and GR version 3.10.1.1 with two TwinRX installed, without any issues.  I'm using   the first SFP port (SFP0) but at 10Gbit.   I've previously used it at 1GBit without any issues.

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