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Re: re[Discuss-gnuradio] configuring with usrp2 src present
From: |
Andy_Long |
Subject: |
Re: re[Discuss-gnuradio] configuring with usrp2 src present |
Date: |
Thu, 15 Apr 2010 00:50:39 -0700 (PDT) |
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 <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
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
>
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- Re: re[Discuss-gnuradio] configuring with usrp2 src present, Andy_Long, 2010/04/14
- Re: re[Discuss-gnuradio] configuring with usrp2 src present, Johnathan Corgan, 2010/04/14
- Re: re[Discuss-gnuradio] configuring with usrp2 src present, Andy_Long, 2010/04/14
- Re: re[Discuss-gnuradio] configuring with usrp2 src present,
Andy_Long <=
- Re: re[Discuss-gnuradio] configuring with usrp2 src present, Firas Abbas, 2010/04/16
- Re: re[Discuss-gnuradio] configuring with usrp2 src present, Andy_Long, 2010/04/16
- Re: re[Discuss-gnuradio] configuring with usrp2 src present, Firas Abbas, 2010/04/16
- Re: re[Discuss-gnuradio] configuring with usrp2 src present, Andy_Long, 2010/04/16
- Re: re[Discuss-gnuradio] configuring with usrp2 src present, Johnathan Corgan, 2010/04/16
- Re: re[Discuss-gnuradio] configuring with usrp2 src present, Andy_Long, 2010/04/16