[Discuss-gnuradio] Stop GRC flow graph after defined time

2010-09-29 Thread Thorsten Laude
Hallo, I'm executing a flow graph in GRC and want to stop this flow graph after some defined time, for example 3 seconds, or after a defined amount of samples. Currently I stop the flow graph by clicking on Kill the flow graph. How can I implement, that the flow graph is stopped automatically?

RE: [Discuss-gnuradio] strange receiver behaviour with UHD

2010-09-29 Thread Patrik Eliardsson
Thanks for all your replies! We did some additional experiments where we divided our program into 2 phases. In phase 1 we did all the initialization like setting rx rate, center frequency, gain, synchronizing to ref clock, and finally issued a stream command to receive samples. The received

Re: [Discuss-gnuradio] Stop GRC flow graph after defined time

2010-09-29 Thread Josh Blum
You can use the Misc-Head block to limit the samples. Then set the flow graph options to run to completion, this option is only available in non-gui mode. See the options blocks. -Josh On 09/29/2010 04:31 AM, Thorsten Laude wrote: Hallo, I'm executing a flow graph in GRC and want to stop

[Discuss-gnuradio] Same File Size

2010-09-29 Thread Justin Bracken
Hello All, I am expecting to see a similiar file size in a simple test file that im running and I don't get that. Is there something Im missing? USRP2-FileSink SignalSource-Throttle-FileSink I have checked obvious things. The USRP2 block is set to a decimation of 400. Given the 100MS/s rate of

Re: [Discuss-gnuradio] Same File Size

2010-09-29 Thread Eric Blossom
On Wed, Sep 29, 2010 at 04:14:18PM -0400, Justin Bracken wrote: Hello All, I am expecting to see a similiar file size in a simple test file that im running and I don't get that. Is there something Im missing? USRP2-FileSink SignalSource-Throttle-FileSink I have checked obvious things.

[Discuss-gnuradio] Same File Size

2010-09-29 Thread Justin Bracken
-- Forwarded message -- From: Justin Bracken scourc...@gmail.com Date: Wednesday, September 29, 2010 Subject: Same File Size To: Eric Blossom e...@comsec.com Are the samples in the files synced? I.e. The sample at index 1 in file1 is recorded at the same time as the sample at

Re: [Discuss-gnuradio] Same File Size

2010-09-29 Thread John Andrews
If throttle is removed then how can we prevent the cpu being used up if there is not rate limiting block in the flowgraph ? On Wed, Sep 29, 2010 at 1:46 PM, Justin Bracken scourc...@gmail.com wrote: -- Forwarded message -- From: Justin Bracken scourc...@gmail.com Date:

Re: [Discuss-gnuradio] Optimal way of performing multiple FFTs on a stream of data

2010-09-29 Thread Eric Blossom
On Wed, Sep 29, 2010 at 01:47:22PM -0700, John Andrews wrote: Hi, This is more of a programming question than a gnuradio question. I am writing a C++ block that takes in a stream of complex data, an N element block {B} is chosen from the stream, this block is multiplied with a set {M1, M2,