Hi Marcus:
Thank you so much.Do you indicate my new flowgraph had run?I
have add a file sink,but it is null.And I think it don't run.I don't know
why.Can you give me some advices?Thank you so much.
Best regards,
xd
At 2014-07-25 05:27:28, "Marcus Müller" <marcus.muel...@ettus.com> wrote:
>Hi xianda,
>
>tb.wait() does exactly what you said it does: Wait for the flow graph to
>complete.A flowgraph will run until one of the blocks in that flowgraph
>signal that they're done, or you call tb.stop().
>If you don't have such a block, your tb will run forever, and wait()
>will never return.
>
>Greetings,
>Marcus
>
>
>On 25.07.2014 11:13, xianda wrote:
>> Hi Marcus:
>> Thank you for your reply.Sorry for that if you can't
>> understand.I will try my best to explain my question.
>>
>> def main():
>> tb=my_top_block()
>> tb.start()
>> time.sleep(30)
>>
>> #stop flowgraph
>> tb.lock()
>> tb.disconnect((tb.uhd_usrp_source_0,0),(tb.rx_0,0))
>> tb.disconnct((tb.rx_0,0),tb.snk1)
>> #start flowgraph
>> tb.connect((tb.uhd_usrp_source_0,0),(tb.rx_1,0))
>> tb.connect((tb.rx_1,0),tb.snk)
>> # blockA:(tb.rx_0,0) blockB:(tb.rx_1,0)
>> tb.unlock()
>> tb.wait()
>> print "start"
>>
>> I want to disconnct flow graph, and then to start a new connect.My code hang
>> in tb.wait(),it can't go on.I add print "start" and it can't display
>> "start".Sorry for my poor english if you can't understand.
>> Thank you so much.
>> Best regards,
>> xd
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> At 2014-07-25 04:59:52, "Marcus Müller" <marcus.muel...@ettus.com> wrote:
>>> Hi Xianda,
>>>
>>> as usual, saying "doesn't work", "can't run", "behaves wrong" really
>>> gives no clue what's wrong.
>>> Please follow
>>> http://gnuradio.org/redmine/projects/gnuradio/wiki/ReportingErrors ,
>>> especially "How do I ask?".
>>>
>>> Greetings,
>>> Marcus
>>>
>>> On 25.07.2014 09:36, xianda wrote:
>>>> Hi Marcus:
>>>> Thank you so much for your kindly reply. And I
>>>> disconnect block A and sink 1.
>>>>
>>>> def main():
>>>> tb=my_top_block()
>>>> tb.start()
>>>> time.sleep(30)
>>>>
>>>> #stop flowgraph
>>>> tb.lock()
>>>> tb.disconnect((tb.uhd_usrp_source_0,0),(tb.rx_0,0))
>>>> tb.disconnct((tb.rx_0,0),tb.snk1)
>>>> #start flowgraph
>>>> tb.connect((tb.uhd_usrp_source_0,0),(tb.rx_1,0))
>>>> tb.connect((tb.rx_1,0),tb.snk)
>>>> # blockA:(tb.rx_0,0) blockB:(tb.rx_1,0)
>>>> tb.unlock()
>>>>
>>>> tb.wait()
>>>> And It can run.But new problem exists.My new flowgraph:
>>>>
>>>> source--->block B(just one block)--->sink2
>>>> can't run(I have already tested my new flowgraph alone,it's normal.But
>>>> after reconfiguring flowgraph,it can't run normally. ).I think it's
>>>> blocking because of the tb.wait().I know the wait is a blocking call that
>>>> sits there and waits for the flowgraph to finish.I just want my new
>>>> flowgraph run.Thank you.
>>>> Best regards,
>>>> xd
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> At 2014-07-21 08:06:52, "Marcus Müller" <marcus.muel...@ettus.com> wrote:
>>>> unless you also disconnect block A and sink1, GNU Radio will continue to
>>>> assume that block A should produce output for sink1, and it can't do that
>>>> without input.
>>>>
>>>> Greetings,
>>>> Marcus
>>>>
>>>> On 21.07.2014 13:43, xianda wrote:
>>>>
>>>> I forget to say:the "sink" also different with each other.Namely:
>>>> source--->block A(just one block)--->sink1
>>>> source--->block B(just one block)--->sink2
>>>> Can someone help me?Thanks.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> At 2014-07-21 06:50:10, "xianda" <wangxianda920...@163.com> wrote:
>>>>
>>>> Hi all:
>>>> Thank you in advance.I want to ask some questions about the
>>>> "Reconfiguring Flowgraphs".
>>>> My flowgraphs:
>>>> source--->block A(just one block)--->sink
>>>> And I want to run the flowgraphs for 30 seconds,and then run the other
>>>> flowgraphs:
>>>> source--->block B(just one
>>>> block)--->sink
>>>> And I have read the API,and then I write something like this:
>>>>
>>>> def main():
>>>> tb=my_top_block()
>>>> tb.start()
>>>> time.sleep(30)
>>>>
>>>> #stop flowgraph
>>>> tb.lock()
>>>> tb.disconnect((tb.uhd_usrp_source_0,0),(tb.rx_0,0))
>>>>
>>>> #start flowgraph
>>>> tb.connect((tb.uhd_usrp_source_0,0),(tb.rx_1,0))
>>>> tb.connect((tb.rx_1,0),tb.snk)
>>>> # blockA:(tb.rx_0,0) blockB:(tb.rx_1,0)
>>>> tb.unlock()
>>>>
>>>> tb.wait()
>>>> But it go error: RuntimeError: delay(4): insufficient connected input
>>>> ports (1 needed, 0 connected)
>>>> Can someone help me?Thank you.
>>>> Best regards,
>>>> xd
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Discuss-gnuradio mailing list
>>>> Discuss-gnuradio@gnu.orghttps://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>>>
>
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