Re: [Discuss-gnuradio] packet_pad_impl in gr-foo

[Nikita Airee]

Oh okay. So if I understand correctly, the Packet Pad block doesn't add it's own time tags but reads the ones sent by upstream blocks?

Also is it possible to add these time tags, tx_eob, tx_sob specifically, before the UHD Sink by modifying the Packet Pad2 Block?

On Fri, Mar 3, 2017 at 1:42 PM, Bastian Bloessl <address@hidden> wrote:

Hi,


> On 3 Mar 2017, at 09:01, Nikita Airee <address@hidden> wrote:
>
> I sorry that I was not very clear. The Packet Pad2 block works just fine. I meant the Packet Pad block. When that block is placed before the UHD sink, nothing is transmitted. Tag Debug also doesn't show any added tags.


Ah, I see, you changed the flow graph. Your problem might be that the transmitter outputs a tagged stream and, therefore, requires the Packet Pad 2 block as in the original flow graph. You replaced it with a block that expects a normal stream input that contains frames that are already marked with “tx_sob” and “tx_eob” tags. I would recommend to keep the original configuration.

Best,
Bastian