From 586aa46c2c6032ddc29329f7beae27460f687168 Mon Sep 17 00:00:00 2001
From: Robert Schmidt <robert.schmidt@openairinterface.org>
Date: Wed, 22 Jun 2022 16:54:35 +0200
Subject: [PATCH] Set correct master clock rate for N320
---
targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp b/targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
index 89762843458..cdd8f22b98d 100644
--- a/targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
+++ b/targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
@@ -1030,9 +1030,13 @@ extern "C" {
}
if (device_adds[0].get("type") == "n3xx") {
- printf("Found USRP n300\n");
+ const std::string product = device_adds[0].get("product");
+ printf("Found USRP %s\n", product.c_str());
device->type=USRP_N300_DEV;
- usrp_master_clock = 122.88e6;
+ if (product == "n320")
+ usrp_master_clock = 245.76e6; // N320 does not support 122.88e6 master clock rate
+ else
+ usrp_master_clock = 122.88e6;
args += boost::str(boost::format(",master_clock_rate=%f") % usrp_master_clock);
if ( 0 != system("sysctl -w net.core.rmem_max=62500000 net.core.wmem_max=62500000") )
--
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