From ae7cf499472b8174b9b12e1da23482a20bac461a Mon Sep 17 00:00:00 2001
From: Josh Blum
Date: Wed, 28 Jul 2010 16:44:14 -0700
Subject: uhd: use time delay in proportion to the number of channels

---
 gr-uhd/lib/uhd_mimo_source.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'gr-uhd/lib/uhd_mimo_source.cc')

diff --git a/gr-uhd/lib/uhd_mimo_source.cc b/gr-uhd/lib/uhd_mimo_source.cc
index b620a56fc..2b5384ce3 100644
--- a/gr-uhd/lib/uhd_mimo_source.cc
+++ b/gr-uhd/lib/uhd_mimo_source.cc
@@ -136,9 +136,10 @@ protected:
     void set_streaming(bool enb){
         if (enb){
             //setup a stream command that starts streaming slightly in the future
+            static const double reasonable_delay = 0.01; //10 ms (order of magnitude >> RTT)
             uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS);
             stream_cmd.stream_now = false;
-            stream_cmd.time_spec = get_time_now() + uhd::time_spec_t(0, 0.01); //10ms offset in future
+            stream_cmd.time_spec = get_time_now() + uhd::time_spec_t(_dev->get_num_channels() * reasonable_delay);
             _dev->issue_stream_cmd(stream_cmd);
         }
         else
-- 
cgit