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AM fix modification

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This commit is contained in:
Krzysiek Egzmont
2023-12-06 17:54:32 +01:00
parent e95f577074
commit c1a009cc2f
8 changed files with 66 additions and 35 deletions
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25
am_fix.c
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@@ -29,6 +29,7 @@
#include "frequencies.h"
#include "functions.h"
#include "misc.h"
#include "settings.h"
#ifdef ENABLE_AM_FIX
@@ -186,7 +187,7 @@ static const t_gain_table gain_table[] =
{0x03FF, 0}, // 91 .. 3 7 3 7 .. 0dB 0dB 0dB 0dB .. 0dB
};
static const unsigned int original_index = 85;
static const unsigned int original_index = ARRAY_SIZE(gain_table) - 7;
#ifdef ENABLE_AM_FIX_SHOW_DATA
// display update rate
@@ -212,6 +213,9 @@ const unsigned max_index = ARRAY_SIZE(gain_table) - 1;
// -89dBm, any higher and the AM demodulator starts to saturate/clip/distort
const int16_t desired_rssi = (-89 + 160) * 2;
int8_t currentGainDiff;
bool enabled = true;
void AM_fix_init(void)
{ // called at boot-up
for (int i = 0; i < 2; i++) {
@@ -242,7 +246,7 @@ void AM_fix_reset(const unsigned vfo)
//
void AM_fix_10ms(const unsigned vfo, bool force)
{
if(vfo > 1)
if(!gSetting_AM_fix || !enabled || vfo > 1 )
return;
if(!force) switch (gCurrentFunction)
@@ -254,7 +258,6 @@ void AM_fix_10ms(const unsigned vfo, bool force)
#ifdef ENABLE_AM_FIX_SHOW_DATA
counter = display_update_rate; // queue up a display update as soon as we switch to RX mode
#endif
AM_fix_reset(vfo);
return;
// only adjust stuff if we're in one of these modes
@@ -273,6 +276,12 @@ void AM_fix_10ms(const unsigned vfo, bool force)
}
#endif
static uint32_t lastFreq[2];
if(gEeprom.VfoInfo[vfo].pRX->Frequency != lastFreq[vfo]) {
lastFreq[vfo] = gEeprom.VfoInfo[vfo].pRX->Frequency;
AM_fix_reset(vfo);
}
int16_t rssi;
{ // sample the current RSSI level
// average it with the previous rssi (a bit of noise/spike immunity)
@@ -348,7 +357,7 @@ void AM_fix_10ms(const unsigned vfo, bool force)
// remember the new table index
gain_table_index_prev[vfo] = index;
currentGainDiff = gain_table[original_index].gain_dB - gain_table[index].gain_dB;
BK4819_WriteRegister(BK4819_REG_13, gain_table[index].reg_val);
}
@@ -370,5 +379,13 @@ void AM_fix_print_data(const unsigned vfo, char *s) {
}
#endif
int8_t AM_fix_get_gain_diff()
{
return currentGainDiff;
}
void AM_fix_enable(bool on)
{
enabled = on;
}
#endif