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Round frequencies returned from Hamlib to the nearest Hertz 

Hamlib can return  fractional decimal Hertz for some  devices that use
internal fixed  point binary registers  e.g.  devices using  the Si570
clock generator as  a frequency synthesizer.  Rounding  to the nearest
Hertz should ensure accurate round tripping of frequencies.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6622 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Bill Somerville 2016-04-14 19:25:18 +00:00
parent c7dfc1ee00
commit c40c824540
1 changed files with 9 additions and 0 deletions
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9
HamlibTransceiver.cpp
View File

@ -1,6 +1,7 @@
#include "HamlibTransceiver.hpp"
#include <cstring>
#include <cmath>
#include <QByteArray>
#include <QString>
@ -439,6 +440,7 @@ int HamlibTransceiver::do_start ()
// assume it is as when we started by setting at open time right
// here. We also gather/set other initial state.
error_check (rig_get_freq (rig_.data (), RIG_VFO_CURR, &f1), tr ("getting current frequency"));
f1 = std::round (f1);
TRACE_CAT ("HamlibTransceiver", "current frequency =" << f1);
error_check (rig_get_mode (rig_.data (), RIG_VFO_CURR, &m, &w), tr ("getting current mode"));
@ -456,6 +458,7 @@ int HamlibTransceiver::do_start ()
}
error_check (rig_get_freq (rig_.data (), RIG_VFO_CURR, &f2), tr ("getting other VFO frequency"));
f2 = std::round (f2);
TRACE_CAT ("HamlibTransceiver", "rig_get_freq other frequency =" << f2);
error_check (rig_get_mode (rig_.data (), RIG_VFO_CURR, &mb, &wb), tr ("getting other VFO mode"));
@ -481,6 +484,7 @@ int HamlibTransceiver::do_start ()
else
{
error_check (rig_get_freq (rig_.data (), RIG_VFO_CURR, &f1), tr ("getting frequency"));
f1 = std::round (f1);
TRACE_CAT ("HamlibTransceiver", "rig_get_freq frequency =" << f1);
error_check (rig_get_mode (rig_.data (), RIG_VFO_CURR, &m, &w), tr ("getting mode"));
@ -542,6 +546,7 @@ int HamlibTransceiver::do_start ()
int resolution {0};
freq_t current_frequency;
error_check (rig_get_freq (rig_.data (), RIG_VFO_CURR, &current_frequency), tr ("getting current VFO frequency"));
current_frequency = std::round (current_frequency);
Frequency f = current_frequency;
if (f && !(f % 10))
{
@ -549,6 +554,7 @@ int HamlibTransceiver::do_start ()
error_check (rig_set_freq (rig_.data (), RIG_VFO_CURR, test_frequency), tr ("setting frequency"));
freq_t new_frequency;
error_check (rig_get_freq (rig_.data (), RIG_VFO_CURR, &new_frequency), tr ("getting current VFO frequency"));
new_frequency = std::round (new_frequency);
switch (static_cast<Radio::FrequencyDelta> (new_frequency - test_frequency))
{
case -5: resolution = -1; break; // 10Hz truncated
@ -570,6 +576,7 @@ void HamlibTransceiver::do_stop ()
if (is_dummy_)
{
rig_get_freq (rig_.data (), RIG_VFO_CURR, &dummy_frequency_);
dummy_frequency_ = std::round (dummy_frequency_);
if (mode_query_works_)
{
pbwidth_t width;
@ -851,6 +858,7 @@ void HamlibTransceiver::poll ()
if (!state ().ptt () || !state ().split ())
{
error_check (rig_get_freq (rig_.data (), RIG_VFO_CURR, &f), tr ("getting current VFO frequency"));
f = std::round (f);
TRACE_CAT_POLL ("HamlibTransceiver", "rig_get_freq frequency =" << f);
update_rx_frequency (f);
}
@ -871,6 +879,7 @@ void HamlibTransceiver::poll ()
? (rig_->state.vfo_list & RIG_VFO_A ? RIG_VFO_A : RIG_VFO_MAIN)
: (rig_->state.vfo_list & RIG_VFO_B ? RIG_VFO_B : RIG_VFO_SUB)
, &f), tr ("getting other VFO frequency"));
f = std::round (f);
TRACE_CAT_POLL ("HamlibTransceiver", "rig_get_freq other VFO =" << f);
update_other_frequency (f);
}