Re: [Discuss-gnuradio] How to simultaneously tx/rx on usrp with OFDM?

[Mattias Kjellsson]

> There are several problems I am facing now(sorry, I am not a good programmer, 
> maybe they are silly questions):
> 1. I am trying to use different threads to receive packets and transmit 
> packets. Although I used "global killed" and "sys.exit(1)" to make sure 
> threads exit when Ctrl-C pressed, it won't abort to the command line. 
>   
> 2. As I said I need to combine received packets and locally generated packets 
> at transmitting, but I didn't figure out how to achieve that. I am thinking 
> of 
> make a global variable payload_all[], and just throw every packets into it, 
> then use send_pkts to transmit the payload while receiving packets from 
> others 
> in another thread. Is that possible?
>   
> 3. The blocks transmit_path and receive_path I think are both having only 1 
> connector in the graph. Is there any easy way to connect these two parts? Or 
> is there any other blocks that I can use to make this kind of connection?
>
> Any related suggestion will be appreciated.
>   
Hi,

Have you had a look at gr_message_sink/source? I think they might be a
good substitute to the global "payload_all[]".

Just my uninitialized and very quick thoughts...

BR
//Mattias