Re: [Discuss-gnuradio] Runtime error - Empty Device Address in GRC Flowgraph build

[Marcus Müller]

When running uhd_find_devices, do you happen to use "sudo"?


On 08/15/2015 07:30 PM, Marcus D. Leech wrote:
> On 08/15/2015 06:58 AM, Mark wrote:
>> Hello,
>>
>> After installing GRC into Ubuntu 15.05 64bit I get the following
>> error when trying to run a GRC flow graph example:-
>>
>> -----------------------------------------------------------------------------------------------------------
>>
>>
>> RuntimeError: LookupError: KeyError: No devices found for ----->
>> Empty Device Address
>>
>> -----------------------------------------------------------------------------------------------------------
>>
>>
>>
>> A uhd_find_device command successfully returns the serial number from
>> my USRP B100 in TERMINAL. However, as I say, the flowgraph wont build
>> as it doesn’t appear to be able to locate my USRP B100 via its USB
>> connection.
>>
>> "uhd_images_downloader.py" successfully runs and running
>> uhd-usrp.rules to moves rule file to /etc/udev/rules.d/ carries out
>> ok too.
>>
>> However, again, I'm still unable to build a successful GRC flowgraph
>> with my B100.
>>
>> I leave the device address empty in the GRC UHD USRP Source block but
>> again, GRC wont build the flowgraph and returns the above error message.
>>
>> Please help as I've spent days trying to get GRC to install and
>> operate successfully.
>>
>> Many thanks in advance,
>>
>> Mark
>>
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> Have you tried just putting a device address in?
>
> use:
>
> type=b100
>
> in the device address field in your flow-graph
>
>
>
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