From d3e1d6e9be75ba8dcd21c2ed466b9e6a316625b0 Mon Sep 17 00:00:00 2001
From: natetemple <nate.temple@ettus.com>
Date: Fri, 22 Nov 2019 15:53:02 -0800
Subject: Examples: wrap up ref setting with option check

---
 host/examples/rx_ascii_art_dft.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'host/examples/rx_ascii_art_dft.cpp')

diff --git a/host/examples/rx_ascii_art_dft.cpp b/host/examples/rx_ascii_art_dft.cpp
index 2f8c33947..3652522f2 100644
--- a/host/examples/rx_ascii_art_dft.cpp
+++ b/host/examples/rx_ascii_art_dft.cpp
@@ -71,7 +71,9 @@ int UHD_SAFE_MAIN(int argc, char* argv[])
     uhd::usrp::multi_usrp::sptr usrp = uhd::usrp::multi_usrp::make(args);
 
     // Lock mboard clocks
-    usrp->set_clock_source(ref);
+    if (vm.count("ref")) {
+        usrp->set_clock_source(ref);
+    }
 
     // always select the subdevice first, the channel mapping affects the other settings
     if (vm.count("subdev"))
-- 
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