Re: [Discuss-gnuradio] gr-usrp library

[Ges]

Hi Eric,

I have not looked at tunnel_ip_null_mac. I went through the others. What I am trying to do is identify the gnuradio blocks I will need to use to convert a character stream from a file into signals that can be sent across the SMA cable to the rx side, where it can be decoded and written as a character stream back to a file. 

I used the gnuradio blocks from the old gmsk implementation (python test script that reads from a file and writes to a file - using the simple_correlator block) in Click to send the stream across the SMA cable, but it does not seem to work. I was having some issues with usrp overrun, but I cleared those problems. 

I am assuming that maybe they dont work properly over the cable, so I want to use the blocks in the new gmsk2 implementation. I am not able to identify the blocks i need to put together as a flowgraph to do this to use in Click. I need not have very complex packets. Something simple would do as long as I can get a
 character stream across. 

benchmark_gmsk_tx and benchmark_gmsk_rx calls the gmsk2_demod and gmsk2_mod eventually. I find packet_utils confusing. 

Is it possible for me to create a graph of gr_blocks that lets me read a character stream and send it across. 

Thanks 
Gesly

Eric Blossom <address@hidden> wrote:
>  On Sat, Apr 15, 2006 at 12:07:48PM -0700, Ges wrote:
> > Hi Eric,
> > Thanks a lot. The gian for tx was different from the rx side. 
> > 
> > I having a little trouble understanding the flow of the new gmsk2 implementation. 
> > Can you give me a quick overview of it? 
> > 
> > I am confused with where its getting a character to convert and send
> > out. Is there a way to just read a character stream from a file and
> > pass it to the gmsk2_mod to convert and send out? Will
>  the
> > simple_framer work with this implementation?
> > 
> > I am looking a simple implementation where I can read a character
> > stream from a file and send it to across the SMA cable and write it
> > to a file on the receiver side.  If I have a simple implementation
> > working as proof of concept in Click, then i can try a TDMA mac on
> > top of it.
>
> Do you understand benchmark_gmsk_tx, benchmark_gmsk_rx and
> tunnel_ip_null_mac?  If not, what are your specific questions?
>
>
>
> Eric

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