[Discuss-gnuradio] Terminate the receiver

[Brook Lin]

Hi All, 

I am working on the OFDM project. When I run sudo
./benchmark_ofdm_rx_video.py -f 450M -R A -v -d 32 --fft-length 128
--occupied-tones 100 --cp-length 32, I want to terminate the process if the
pktno>100. I tried:

def main():
    ........
    def rx_callback(ok, payload):
        global n_rcvd, n_right
        n_rcvd += 1
        (pktno,) = struct.unpack('!H', payload[0:2])
        if ok:
            n_right += 1
        print "ok: %r \t pktno: %d \t n_rcvd: %d \t n_right: %d" % (ok,
pktno, n_rcvd, n_right)
        
        if pktno > 250:
            raise SystemExit(0)
        ......

However, it just stops to receive when pktno>100. The output is like:
......
ok: True         pktno: 249      n_rcvd: 243     n_right: 243
ok: True         pktno: 250      n_rcvd: 244     n_right: 244
ok: True         pktno: 251      n_rcvd: 245     n_right: 245


Actrually, I want to terminate the process, and give a new parameter, say
sudo ./benchmark_ofdm_rx_video.py -f 460M -R A -v -d 32 --fft-length 128
--occupied-tones 100 --cp-length 32. How can I achieve it?

Thanks,
Brook

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