[Discuss-gnuradio] vector_sink read problem

[kaleem ahmad]

Hi,

I want to implement an infinite loop which receives data (using USRP +
RFX2400) in a vector_sink_b(). The packets are sent by a transmitter after
every 't milliseconds'. I tried the code given at the end of paragraph. But
it doesnt works and problem which I am facing is that it receives the first
correct packet and then rather to wait for the next correct packet it keep
on reading the copy of same packet (from I dont know ...may be from
buffers??) and extending it every time with previously read data. I mean it
do as follows > Suppose first packet contains the string : TEST. at first
read it gets: TEST...second time TEST TEST....third time TEST TEST TEST and
so on. I was expecting that it will receive a packet and will then waits for
other packet? So can you please suggest me what is the problem and how can I
solve it. 
------------------------------------------------------------------------------------
        rx, vec_sink = receive()
        rx.start()
        while (rx.is_running):
                rx_data = vec_sink.data()
                if (len(rx_data) > 0):
                        #process rx_data
                        rx_data = ' ' #re-initilaze the receive buffer
                     
-----------------------------------------------------------------------------------------------------------------------------
The following code works but it only receive one packet and then shutdowns
the flowgraph
-----------------------------------------------------------------------------------------------------------------------------
        rx, vec_sink = receive()
        rx.start()
        flag = 1
        while (rx.is_running and flag):
                rx_data = vec_sink.data()
                if (len(rx_data) > 0):
                        #process rx_data
                        flag = 0
                        rx.stop()
--------------------------------------------------------------------------
-- 
View this message in context: 
http://www.nabble.com/vector_sink-read-problem-tp19722765p19722765.html
Sent from the GnuRadio mailing list archive at Nabble.com.