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[Discuss-gnuradio] vector_sink read problem
From: |
kaleem ahmad |
Subject: |
[Discuss-gnuradio] vector_sink read problem |
Date: |
Mon, 29 Sep 2008 05:13:38 -0700 (PDT) |
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()
--------------------------------------------------------------------------
--
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- [Discuss-gnuradio] vector_sink read problem,
kaleem ahmad <=