uhd/images/usrp_x310_fpga_HG.bit about gr-doa HOT 3 CLOSED

Did you power cycle the USRP? That's required for the new FPGA image to take effect. If so, then there's a very good chance you have 2 different UHD versions installed on the host computer. There will be some text before that shown at the top (before -- X300 initialization sequence...) ... that might shed some light here.

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Hello,
I have power cycle the device. to installed uhd I only ran '''sudo apt-get install libuhd-dev uhd-host''', I dont think i have another version. I am using ubuntu 16.04, and I installed the required dependencies. when it works it just gives me:

'''
Executing: /usr/bin/python -u /home/caai/Downloads/gr-doa-master/apps/estimate_X310_TwinRX_constant_phase_offsets_and_save.py

linux; GNU C++ version 5.3.1 20151219; Boost_105800; UHD_003.009.002-0-unknown

-- X300 initialization sequence...
-- Determining maximum frame size... 1472 bytes.
-- Setup basic communication...
-- Loading values from EEPROM...
-- Setup RF frontend clocking...
-- Radio 1x clock:200
-- Detecting internal GPSDO.... No GPSDO found
-- Initialize Radio0 control...
-- Performing register loopback test... pass
-- Initialize Radio1 control...
-- Performing register loopback test... pass
Traceback (most recent call last):
File "/home/caai/Downloads/gr-doa-master/apps/estimate_X310_TwinRX_constant_phase_offsets_and_save.py", line 80, in
main()
File "/home/caai/Downloads/gr-doa-master/apps/estimate_X310_TwinRX_constant_phase_offsets_and_save.py", line 74, in main
tb = top_block_cls()
File "/home/caai/Downloads/gr-doa-master/apps/estimate_X310_TwinRX_constant_phase_offsets_and_save.py", line 38, in init
addresses=input_variables.RxAddr
File "/usr/local/lib/python2.7/dist-packages/doa/twinrx_usrp_source.py", line 64, in init
self.uhd_usrp_source_0.set_subdev_spec(' '.join(subdevs[:sources]), 0)
File "/usr/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py", line 3254, in set_subdev_spec
return _uhd_swig.usrp_source_sptr_set_subdev_spec(self, spec, mboard)
RuntimeError: ValueError: The subdevice specification "A:0 A:1 B:0 B:1" is too long.
The user specified 4 channels, but there are only 2 rx dsps on mboard 0.
'''

the device I am using is the USRP X310 which it has 4 channels. There are two RX boards inside the X310. And every board has two channels.

I guess my question would be what is the images use when it was tested. because the one that works but gives me the error of not recognizing the 4 channels is http://files.ettus.com/binaries/images/uhd-images_003.009.002-release.zip

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TwinRX requires UHD 3.10.0.0 or newer ( https://kb.ettus.com/TwinRX#TwinRX ) ... assuming you're using 2x TwinRX daughterboards since you're running a TwinRX specific script ...

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