Vector_sink read problem

GNU Radio
1

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()

2

OK thanks I solved the problem!!!

kaleem ahmad wrote:

mean it do as follows > Suppose first packet contains the string : TEST.
#process rx_data
rx_data = vec_sink.data()
if (len(rx_data) > 0):
#process rx_data
flag = 0
rx.stop()

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