Re: [Discuss-gnuradio] USRP packet parsing

[Thibaud Hottelier]

About the pulling/pushing thing: I though that I would have one process 
in the usb block writing the usb_fifo data on the bus and one other 
process in the channel block that would read them from the bus and store 
them. This is neither pulling nor pushing right ? Can I do this with one 
single process ?

Thibaud

Brian Padalino wrote:
> On 3/19/07, Thibaud Hottelier <address@hidden> wrote:
> > Ok, I will modify it for pushing instead of pulling packets.
> >
> > Can I assume that the data will arrive ordered by timestamps ? If not
> > then I have to use one data_queue and one samples_fifo per channel,
> > isn't that too much?
>
> I am pretty positive you can assume that the packets will arrive
> ordered by timestamp.  The host can easily pre-order the packets and
> send them sequentially.  If any packet is out of order, I would assume
> it should be evicted and dropped immediately.
>
> Now, since the 32-bit number can only have a finite amount of time
> before it rolls over, there should be a well defined way of defining
> the beginning of an epoch or invalidating the "previous timestamp"
> register that may be used to ensure time continuity.
>
> > Thibaud
>
> Brian