From 7149658fbbee12114429183f8015effd5f59a5f6 Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Fri, 15 Jul 2016 11:43:17 +0200
Subject: Autoconfigure refclk frequency if LEA-M8F detected
This should make this branch compatible with both Ettus GPSDO
using 10MHz refclk and the LEA-M8F using 30.72MHz
---
host/lib/usrp/b200/b200_impl.cpp | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'host/lib/usrp/b200/b200_impl.cpp')
diff --git a/host/lib/usrp/b200/b200_impl.cpp b/host/lib/usrp/b200/b200_impl.cpp
index 4b17b27f0..a4d43f6b9 100644
--- a/host/lib/usrp/b200/b200_impl.cpp
+++ b/host/lib/usrp/b200/b200_impl.cpp
@@ -722,6 +722,13 @@ b200_impl::b200_impl(const uhd::device_addr_t& device_addr, usb_device_handle::s
//GPS installed: use external ref, time, and init time spec
if (_gps and _gps->gps_detected())
{
+ if (_gps->gps_detected_lea_m8f()) {
+ // Switch REFCLK Frequency to 30.72MHz before setting clock_source to gpsdo
+ if (not _adf4001_iface->set_refclk_frequency(30720)) {
+ throw uhd::value_error("Could not set refclk frequency to 30.72MHz for LEA-M8F!");
+ }
+ }
+
UHD_MSG(status) << "Setting references to the internal GPSDO" << std::endl;
_tree->access<std::string>(mb_path / "time_source" / "value").set("gpsdo");
_tree->access<std::string>(mb_path / "clock_source" / "value").set("gpsdo");
--
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