Re: [USRP-users] API for PPS input validation

2017-11-07 Thread Rob Kossler via USRP-users 
Dario,
Perhaps with the time source set to external, you can just check the time
of the last PPS (get_time_last_pps) and if it's more than 1 sec old
(relative to get_time_now), there is no PPS detected.

Rob

On Tue, Nov 7, 2017 at 11:02 AM, Dario Fertonani via USRP-users <
usrp-users@lists.ettus.com> wrote:

> On B210, the function
>
> get_mboard_sensor_names( )
>
> returns only "ref_locked" (output confirmed by "uhd_usrp_probe"), so it
> seems the answer to the question in this thread is negative. Can anybody
> please confirm whether this is correct? It would be very useful to know if
> the PPS signal input is actually being used.
>
> Thanks,
> Dario
>
> On Sat, Nov 4, 2017 at 9:50 AM, Dario Fertonani  > wrote:
>
>> I was wondering if it's possible to check via software API whether the
>> PPS reference input is connected. Something along the lines of the API that
>> checks whether the 10 MHz reference input is connected (see red part of the
>> snippet below).
>>
>> Thanks,
>> Dario
>>
>> rfBoardPtr->set_clock_source( "external" );
>> //more code, and give the board time to lock to the reference input
>> assert( rfBoardPtr->get_mboard_sensor( "ref_locked" ).to_bool( ) );
>>
>
>
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>
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Re: [USRP-users] API for PPS input validation

2017-11-07 Thread Dario Fertonani via USRP-users 
On B210, the function

get_mboard_sensor_names( )

returns only "ref_locked" (output confirmed by "uhd_usrp_probe"), so it
seems the answer to the question in this thread is negative. Can anybody
please confirm whether this is correct? It would be very useful to know if
the PPS signal input is actually being used.

Thanks,
Dario

On Sat, Nov 4, 2017 at 9:50 AM, Dario Fertonani 
wrote:

> I was wondering if it's possible to check via software API whether the PPS
> reference input is connected. Something along the lines of the API that
> checks whether the 10 MHz reference input is connected (see red part of the
> snippet below).
>
> Thanks,
> Dario
>
> rfBoardPtr->set_clock_source( "external" );
> //more code, and give the board time to lock to the reference input
> assert( rfBoardPtr->get_mboard_sensor( "ref_locked" ).to_bool( ) );
>
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[USRP-users] API for PPS input validation

2017-11-04 Thread Dario Fertonani via USRP-users 
I was wondering if it's possible to check via software API whether the PPS
reference input is connected. Something along the lines of the API that
checks whether the 10 MHz reference input is connected (see red part of the
snippet below).

Thanks,
Dario

rfBoardPtr->set_clock_source( "external" );
//more code, and give the board time to lock to the reference input
assert( rfBoardPtr->get_mboard_sensor( "ref_locked" ).to_bool( ) );
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