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tweaking scan start values and ranges, allowing <24MHz range

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This commit is contained in:
GullCode 2023-04-24 13:51:31 +02:00
parent 775de5ce6f
commit e53514aa12
2 changed files with 49 additions and 23 deletions
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60
firmware/application/apps/ui_looking_glass_app.cpp
View File

@ -1,7 +1,6 @@
/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2020 euquiq
* Copyright (C) 2023 gullradriel, Nilorea Studio Inc.
*
* This file is part of PortaPack.
*
@ -39,6 +38,16 @@ namespace ui
baseband::shutdown();
}
// Returns the next multiple of num that is a multiple of multiplier
int64_t GlassView::next_mult_of(int64_t num, int64_t multiplier) {
return ((num / multiplier) + 1) * multiplier;
}
// Returns the previous multiple of num that is a multiple of multiplier
//int64_t GlassView::prev_mult_of(int64_t num, int64_t multiplier) {
// return (num / multiplier) * multiplier;
//}
void GlassView::adjust_range(int64_t* f_min, int64_t* f_max, int64_t width) {
int64_t span = *f_max - *f_min;
int64_t num_intervals = span / width;
@ -136,7 +145,7 @@ namespace ui
void GlassView::on_channel_spectrum(const ChannelSpectrum &spectrum)
{
baseband::spectrum_streaming_stop();
if( fast_scan )
if( fast_scan || ( LOOKING_GLASS_SLICE_WIDTH < LOOKING_GLASS_SLICE_WIDTH_MAX ) )
{
// Convert bins of this spectrum slice into a representative max_power and when enough, into pixels
// Spectrum.db has 256 bins. Center 12 bins are ignored (DC spike is blanked) Leftmost and rightmost 2 bins are ignored
@ -168,7 +177,7 @@ namespace ui
if (!pixel_index) // Received indication that a waterfall line has been completed
{
bins_Hz_size = 0; // Since this is an entire pixel line, we don't carry "Pixels into next bin"
f_center = f_center_ini; // Start a new sweep
f_center = f_center_ini - 2 * each_bin_size ; // Start a new sweep
radio::set_tuning_frequency(f_center); // tune rx for this new slice directly, faster than using persistent memory saving
chThdSleepMilliseconds(10);
baseband::spectrum_streaming_start(); // Do the RX
@ -177,15 +186,14 @@ namespace ui
bins_Hz_size -= marker_pixel_step; // reset bins size, but carrying the eventual excess Hz into next pixel
}
}
f_center += LOOKING_GLASS_SLICE_WIDTH; // Move into the next bandwidth slice NOTE: spectrum.sampling_rate = LOOKING_GLASS_SLICE_WIDTH
f_center += 240 * each_bin_size ; // Move into the next bandwidth slice NOTE: spectrum.sampling_rate = LOOKING_GLASS_SLICE_WIDTH
}
else //slow scan
{
for( int16_t bin = 0 ; bin < 120 ; bin++)
for (uint8_t bin = 0; bin < 120 ; bin++)
{
if (spectrum.db[134 + bin] > max_power) // 134
max_power = spectrum.db[134 + bin];
max_power = spectrum.db[134 + bin];
bins_Hz_size += each_bin_size; // add this bin Hz count into the "pixel fulfilled bag of Hz"
@ -200,8 +208,8 @@ namespace ui
if (!pixel_index) // Received indication that a waterfall line has been completed
{
bins_Hz_size = 0; // Since this is an entire pixel line, we don't carry "Pixels into next bin"
f_center = f_center_ini; // Start a new sweep
bins_Hz_size = 0; // Since this is an entire pixel line, we don't carry "Pixels into next bin"
f_center = f_center_ini - 2 * each_bin_size ; // Start a new sweep
radio::set_tuning_frequency(f_center); // tune rx for this new slice directly, faster than using persistent memory saving
chThdSleepMilliseconds(10);
baseband::spectrum_streaming_start(); // Do the RX
@ -210,11 +218,10 @@ namespace ui
bins_Hz_size -= marker_pixel_step; // reset bins size, but carrying the eventual excess Hz into next pixel
}
}
f_center += LOOKING_GLASS_SLICE_WIDTH / 2 ;
f_center += 120 * each_bin_size ;
}
radio::set_tuning_frequency(f_center); // tune rx for this new slice directly, faster than using persistent memory saving
chThdSleepMilliseconds(5);
// receiver_model.set_tuning_frequency(f_center); //tune rx for this slice
baseband::spectrum_streaming_start(); // Do the RX
}
@ -269,7 +276,20 @@ namespace ui
pixel_index = 0; // reset pixel counter
max_power = 0;
bins_Hz_size = 0; // reset amount of Hz filled up by pixels
if( next_mult_of( (f_max - f_min) , 240 ) <= LOOKING_GLASS_SLICE_WIDTH_MAX )
{
LOOKING_GLASS_SLICE_WIDTH = next_mult_of( (f_max - f_min) , 240 );
receiver_model.set_sampling_rate(LOOKING_GLASS_SLICE_WIDTH);
receiver_model.set_baseband_bandwidth(LOOKING_GLASS_SLICE_WIDTH/2);
}
else if( LOOKING_GLASS_SLICE_WIDTH != LOOKING_GLASS_SLICE_WIDTH_MAX )
{
LOOKING_GLASS_SLICE_WIDTH = LOOKING_GLASS_SLICE_WIDTH_MAX ;
receiver_model.set_sampling_rate(LOOKING_GLASS_SLICE_WIDTH);
receiver_model.set_baseband_bandwidth(LOOKING_GLASS_SLICE_WIDTH);
}
receiver_model.set_squelch_level(0);
each_bin_size = LOOKING_GLASS_SLICE_WIDTH / 240 ;
baseband::set_spectrum(LOOKING_GLASS_SLICE_WIDTH, field_trigger.value());
receiver_model.set_tuning_frequency(f_center_ini); // tune rx for this slice
}
@ -324,8 +344,8 @@ namespace ui
int32_t min_size = steps ;
if( locked_range )
min_size = search_span ;
if( min_size < 20 )
min_size = 20 ;
if( min_size < 2 )
min_size = 2 ;
if( v > 7200 - min_size )
{
v = 7200 - min_size ;
@ -347,8 +367,8 @@ namespace ui
int32_t min_size = steps ;
if( locked_range )
min_size = search_span ;
if( min_size < 20 )
min_size = 20 ;
if( min_size < 2 )
min_size = 2 ;
if( freq > (7200 - min_size ) )
freq = 7200 - min_size ;
field_frequency_min.set_value( freq );
@ -364,8 +384,8 @@ namespace ui
int32_t min_size = steps ;
if( locked_range )
min_size = search_span ;
if( min_size < 20 )
min_size = 20 ;
if( min_size < 2 )
min_size = 2 ;
if( v < min_size )
{
v = min_size ;
@ -386,8 +406,8 @@ namespace ui
int32_t min_size = steps ;
if( locked_range )
min_size = search_span ;
if( min_size < 20 )
min_size = 20 ;
if( min_size < 2 )
min_size = 2 ;
int32_t freq = f / 1000000 ;
if( freq < min_size )
freq = min_size ;

12
firmware/application/apps/ui_looking_glass_app.hpp
View File

@ -37,6 +37,7 @@
namespace ui
{
#define LOOKING_GLASS_SLICE_WIDTH_MAX 19999920
#define MHZ_DIV 1000000
#define X2_MHZ_DIV 2000000
@ -80,11 +81,16 @@ namespace ui
std::vector<preset_entry> presets_db{};
int64_t LOOKING_GLASS_SLICE_WIDTH = 19999920; // Each slice bandwidth 20 MHz and a multiple of 240
// since we are using LOOKING_GLASS_SLICE_WIDTH/240 as the each_bin_size
// it should also be a multiple of 2 since we are using LOOKING_GLASS_SLICE_WIDTH / 2 as centering freq
// Each slice bandwidth 20 MHz and a multiple of 240
// since we are using LOOKING_GLASS_SLICE_WIDTH/240 as the each_bin_size
// it should also be a multiple of 2 since we are using LOOKING_GLASS_SLICE_WIDTH / 2 as centering freq
int64_t LOOKING_GLASS_SLICE_WIDTH = 19999920;
// frequency rounding helpers
int64_t next_mult_of(int64_t num, int64_t multiplier);
//int64_t prev_mult_of(int64_t num, int64_t multiplier);
void adjust_range(int64_t* f_min, int64_t* f_max, int64_t width);
void on_channel_spectrum(const ChannelSpectrum& spectrum);
void do_timers();
void on_range_changed();