From 53875ea784ec32f320431e6fa218437e7a78bb80 Mon Sep 17 00:00:00 2001
From: Martin Braun <martin.braun@ettus.com>
Date: Tue, 27 Jun 2017 13:46:36 -0700
Subject: b200: Added doc regarding external+GPSDO ref issues

---
 host/docs/usrp_b200.dox | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/host/docs/usrp_b200.dox b/host/docs/usrp_b200.dox
index e6ad0c90f..f4a1afff0 100644
--- a/host/docs/usrp_b200.dox
+++ b/host/docs/usrp_b200.dox
@@ -280,6 +280,12 @@ Component ID            |  Description               | Details
 
  <sup>1</sup> GPIO pinout is 1=3.3V, 2=GPIO_0, 3=GPIO_1, 4=GPIO_2, 5=GPIO_3, 6=GND, 7=3.3V, 8=GPIO_4, 9=GPIO_5, 10=GPIO_6, 11=GPIO_7, 12=GND
 
+\section b200_known_issues Known issues
+
+The B200 and B210 cannot support an external 10 MHz reference if a GPSDO is
+already present on the motherboard. If an external 10 MHz is to be used, the
+GPSDO needs to be physically removed from the device beforehand.
+
 */
 
 // vim:ft=doxygen:
-- 
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