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tune USRP/USB packet size

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This commit is contained in:
Laurent
2017-02-10 17:08:28 +01:00
parent b9e03cf251
commit 012d333c8e
1 changed files with 9 additions and 5 deletions
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targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
+9 -5
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@@ -662,14 +662,18 @@ extern "C" {
// create tx & rx streamer
uhd::stream_args_t stream_args_rx("sc16", "sc16");
int samples=openair0_cfg[0].sample_rate;
//while ( samples > s->rx_stream->get_max_num_samps())
samples/=24000;
stream_args_rx.args["spp"] = str(boost::format("%d") % samples );
int max=s->usrp->get_rx_stream(stream_args_rx)->get_max_num_samps();
samples/=10000;
LOG_I(PHY,"RF board max packet size %u, size for 100µs jitter %d \n", max, samples);
if ( samples < max )
stream_args_rx.args["spp"] = str(boost::format("%d") % samples );
LOG_I(PHY,"rx_max_num_samps %u\n",
s->usrp->get_rx_stream(stream_args_rx)->get_max_num_samps());
for (int i = 0; i<openair0_cfg[0].rx_num_channels; i++)
stream_args_rx.channels.push_back(i);
s->rx_stream = s->usrp->get_rx_stream(stream_args_rx);
LOG_I(PHY,"rx_max_num_samps %u\n",s->rx_stream->get_max_num_samps());
uhd::stream_args_t stream_args_tx("sc16", "sc16");
for (int i = 0; i<openair0_cfg[0].tx_num_channels; i++)
stream_args_tx.channels.push_back(i);