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fix in trx_usrp_start when gpsdo is not used

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This commit is contained in:
Florian Kaltenberger
2017-08-22 15:48:07 +02:00
parent c5fd670803
commit 592bcf3867
1 changed files with 10 additions and 6 deletions
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targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
+10 -6
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@@ -290,17 +290,21 @@ static int trx_usrp_start(openair0_device *device) {
// init recv and send streaming
uhd::stream_cmd_t cmd(uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS);
// should be s->usrp->get_time_next_pps(&cmd.time_spec);
//cmd.time_spec = s->usrp->get_time_now() + uhd::time_spec_t(0.05);
LOG_I(PHY,"Time in secs now: %llu \n", s->usrp->get_time_now().to_ticks(s->sample_rate));
LOG_I(PHY,"Time in secs last pps: %llu \n", s->usrp->get_time_last_pps().to_ticks(s->sample_rate));
cmd.time_spec = s->usrp->get_time_last_pps() + uhd::time_spec_t(1.0);
if (s->use_gps == 1) {
s->wait_for_first_pps = 1;
cmd.time_spec = s->usrp->get_time_last_pps() + uhd::time_spec_t(1.0);
}
else {
s->wait_for_first_pps = 0;
cmd.time_spec = s->usrp->get_time_now() + uhd::time_spec_t(0.05);
}
cmd.stream_now = false; // start at constant delay
s->rx_stream->issue_stream_cmd(cmd);
if (s->use_gps == 1) s->wait_for_first_pps = 1;
else s->wait_for_first_pps = 0;
s->tx_md.time_spec = cmd.time_spec + uhd::time_spec_t(1-(double)s->tx_forward_nsamps/s->sample_rate);
s->tx_md.has_time_spec = true;
s->tx_md.start_of_burst = true;