Hi Carlos,
there is a dirty hack:
You can do the following:
- issue a stream command with a timestamp far far in the future (e.g.
usrp->get_time_now() + uhd::time_spec_t(100000) )
- use usrp->set_time_next_pps(..) with exactly that timestamp
I've tested this on the X3x0, but really: it's a dirty hack.
Best regards,
Marcus
On 05/28/2015 08:40 PM, Michael West via USRP-users wrote:
Hi Carlos,
Yes and no. The PPS is not a GPIO. The PPS is used to synchronize
the internal time of the USRP. Once synchronized, you can set a start
time for the streaming that coincides with a PPS edge.
Regards,
Michael
On Thu, May 28, 2015 at 5:39 AM, Carlos Alcaide Guillen via USRP-users
<usrp-users@lists.ettus.com mailto:usrp-users@lists.ettus.com> wrote:
Hi all
Is there a way to start executing rx_samples_to_file , when
detecting a pps signal at the PPS TRIG IN input?
Regards
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Hi Carlos,
there *is* a dirty hack:
You can do the following:
1. issue a stream command with a timestamp far far in the future (e.g.
usrp->get_time_now() + uhd::time_spec_t(100000) )
2. use usrp->set_time_next_pps(..) with exactly that timestamp
I've tested this on the X3x0, but really: it's a dirty hack.
Best regards,
Marcus
On 05/28/2015 08:40 PM, Michael West via USRP-users wrote:
> Hi Carlos,
>
> Yes and no. The PPS is not a GPIO. The PPS is used to synchronize
> the internal time of the USRP. Once synchronized, you can set a start
> time for the streaming that coincides with a PPS edge.
>
> Regards,
> Michael
>
> On Thu, May 28, 2015 at 5:39 AM, Carlos Alcaide Guillen via USRP-users
> <usrp-users@lists.ettus.com <mailto:usrp-users@lists.ettus.com>> wrote:
>
> Hi all
>
>
>
> Is there a way to start executing rx_samples_to_file , when
> detecting a pps signal at the PPS TRIG IN input?
>
>
>
> Regards
>
>
> _______________________________________________
> USRP-users mailing list
> USRP-users@lists.ettus.com <mailto:USRP-users@lists.ettus.com>
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
>
>
>
> _______________________________________________
> USRP-users mailing list
> USRP-users@lists.ettus.com
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