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Round frequencies returned from Hamlib to the nearest Hertz

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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 c297e1e23b
commit 9de00a5082
1 changed files with 9 additions and 0 deletions
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9
HamlibTransceiver.cpp
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@ -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);
}