Re: re[Discuss-gnuradio] configuring with usrp2 src present

[Firas Abbas]

Hi,

Replace all  xxx.run   with  xxx.start() and put  xxx.wait() followed by 
xxx.stop() to stop the flowgraph

Best Regards,

Firas




----- Original Message ----
> From: Andy_Long <address@hidden>
> To: address@hidden
> Sent: Thu, April 15, 2010 10:50:39 AM
> Subject: Re: re[Discuss-gnuradio] configuring with usrp2 src present
> 
> 
Hello,Johnathan

Did I have some misunderstanding about it? I still 
> think the problem is from
USRP2 rather than flow graph.
For example, I 
> made some tests to change the while loop such as:

def main(): 
  
>   
    t = my_top_block() 
    t.run() 
  
>   print t.c2mag.unmuted(): #show exceed threshold or not 
    
> time.sleep(3) 

    m = my_top_block() 
    m.run() 
> 
    print m.c2mag.unmuted(): #show exceed threshold or not 
> 
    time.sleep(3) 

    n = my_top_block() 
> 
    n.run() 
    print n.c2mag.unmuted(): #show 
> exceed threshold or not 
    time.sleep(3) 


As same 
> condition as before, after two correct outputs, the third one start
to show 
> the error.

Thank you.
regards,
Andy



Johnathan 
> Corgan-2 wrote:
> 
> On Wed, Apr 14, 2010 at 12:27, Andy_Long <
> ymailto="mailto:address@hidden"; 
> href="mailto:address@hidden";>address@hidden> 
> wrote:
> 
>> I have faced the same problem. I try to received the 
> limited samples from
>> USRP2 by using "head"block. It should return a 
> -1 and the flow graph will
>> stop, am I right?
> 
> The 
> flowgraph will not only stop, but will end its lifetime.  Once
> 
> run() has returned, the flowgraph is no longer usable, or as we like
> to 
> say, further operations on it are "undefined."
> 
> In general, 
> starting and stopping an individual flowgraph should occur
> at the same 
> level of processing as application startup and shutdown.
> Anything else 
> is usually a sign of incorrect design (though not
> always.)  The 
> run() method on a top block is really just a convenient
> way of telling 
> GNU Radio your application has nothing else to do until
> the flowgraph 
> exits.
> 
> Can you describe what you are trying to do?
> 
> 
> Johnathan
> 
> 
> 
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