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<p>Does anyone have any idea what could be the reason for this
behavior?<br>
</p>
<div class="moz-cite-prefix">Am 01.12.2020 um 16:28 schrieb
Sebastian Böhm:<br>
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Hi,<br>
<br>
i try to transmit 2.48 ghz radio packets (beacons) at a fixed time
interval (e.g. every 1 s) via hackrf using the osmocom sink in
gnuradio. Without exception, the beacons are all received by my
sniffer "golden device" hardware, but burst.<br>
<br>
It seems that the packets are only transferred via USB to the
hackrf device hardware when the buffer with the fixed BUF_LEN
262144 (32*16*512) is completely filled. For my setup this are
e.g. 18 beacon frames, which are transmitted as burst. When I look
at the USB interface, I can see this burst of data every 18
seconds in a full USB request block (URB) of size 262144 byte.
All other URBs (also of size 262144 - every approx. 200us)
transferred via USB are filled with zeros only. So this burst
behavior should be caused by gnuradio.<br>
<br>
How can I achieve that the complex data of the osmocom sink's
input is immediately (with the next URB) transferred to the hackrf
hardware? Am I missing any options of the GRC module?<br>
<br>
Thank You in advance!<br>
<br>
Regards,<br>
Sebastian<br>
<div class="moz-signature">-- <br>
<font face="monospace" color="Gray">
__________________________________________________________<br>
<br>
Sebastian Boehm<br>
Brandenburg University of Technology Cottbus - Senftenberg<br>
Computer Networks Communication Systems Group<br>
<br>
E-Mail: <a href="mailto:Sebastian.Boehm@b-tu.de"
moz-do-not-send="true">sebastian.boehm@b-tu.de</a><br>
<br>
P.O. Box: 10 13 44<br>
D-03013 Cottbus<br>
GERMANY<br>
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