paulmataruso/openbts
1
0
Fork 0
mirror of https://github.com/RangeNetworks/openbts.git synced 2025-11-02 12:53:15 +00:00
Code Issues Packages Projects Releases Wiki Activity

transceiver, uhd: runtime check for setting master clock rate

Browse Source 
Before setting the master clock rate, make sure that the
device is capable of being set. For now, assume that devices
that operate with default clock rates above 64 MHz,
specifically USRP2/N200/N210, cannot be set at 52 MHz.

Inform the user that these devices can be used with the
compile time option of host based resampling.

Signed-off-by: Thomas Tsou <ttsou@vt.edu>

git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@2697 19bc5d8c-e614-43d4-8b26-e1612bc8e597
This commit is contained in:
Kurtis Heimerl
2011-11-28 06:25:58 +00:00
parent 827b4fdfac
commit 224f125cb9
1 changed files with 11 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
Transceiver52M/UHDDevice.cpp
View File

@@ -31,6 +31,9 @@
#include "config.h"
#endif
#define U1_DEFAULT_CLK_RT 64e6
#define U2_DEFAULT_CLK_RT 100e6
/*
master_clk_rt - Master clock frequency - ignored if host resampling is
enabled
@@ -325,6 +328,14 @@ double uhd_device::set_rates(double rate)
double actual_rt, actual_clk_rt;
#ifndef RESAMPLE
// Make sure we can set the master clock rate on this device
actual_clk_rt = usrp_dev->get_master_clock_rate();
if (actual_clk_rt > U1_DEFAULT_CLK_RT) {
LOG(ALERT) << "Cannot set clock rate on this device";
LOG(ALERT) << "Please compile with host resampling support";
return -1.0;
}
// Set master clock rate
usrp_dev->set_master_clock_rate(master_clk_rt);
actual_clk_rt = usrp_dev->get_master_clock_rate();