From 8f9f6ee922d14947611ac87d26803bde0b052c4e Mon Sep 17 00:00:00 2001 From: Ismael Gomez Date: Fri, 10 Feb 2017 14:28:40 +0100 Subject: [PATCH] start stream with 0.5s offset to avoid overflows --- srslte/lib/rf/rf_uhd_imp.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/srslte/lib/rf/rf_uhd_imp.c b/srslte/lib/rf/rf_uhd_imp.c index d16382f52..f6ed03b2e 100644 --- a/srslte/lib/rf/rf_uhd_imp.c +++ b/srslte/lib/rf/rf_uhd_imp.c @@ -174,13 +174,19 @@ void rf_uhd_set_rx_cal(void *h, srslte_rf_cal_t *cal) int rf_uhd_start_rx_stream(void *h) { - rf_uhd_handler_t *handler = (rf_uhd_handler_t*) h; + rf_uhd_handler_t *handler = (rf_uhd_handler_t*) h; + uhd_stream_cmd_t stream_cmd = { .stream_mode = UHD_STREAM_MODE_START_CONTINUOUS, - .stream_now = true - }; - uhd_rx_streamer_issue_stream_cmd(handler->rx_stream, &stream_cmd); - return 0; + .stream_now = false + }; + uhd_usrp_get_time_now(handler->usrp, 0, &stream_cmd.time_spec_full_secs, &stream_cmd.time_spec_frac_secs); + stream_cmd.time_spec_frac_secs += 0.5; + if (stream_cmd.time_spec_frac_secs > 1) { + stream_cmd.time_spec_frac_secs -= 1; + stream_cmd.time_spec_full_secs += 1; + } + uhd_rx_streamer_issue_stream_cmd(handler->rx_stream, &stream_cmd); return 0; } int rf_uhd_stop_rx_stream(void *h)