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<body class='hmmessage'><div dir='ltr'>Hello!<br><br>Long story short: hackrf sink code to convert from GR complex to hackrf 8-bit format fails by generating wrong bits on ARM when I do TX on Raspberry PI 2 .<br><br>Evil hides here:<br>lib/hackrf/hackrf_sink_c.cc<br>outbuf[i] = inbuf[i]*127;<br><br>Since on ARM GCC treats all "char" as unsigned(this is chosen implementation) it generates wrong bits, so my advice is to compile on ARM gr-osmocom with flag -fsigned-char. This is probably most effective way to solve this, it solved my TX problems.<br> </div></body>
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