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mirror of https://github.com/kamilsss655/uv-k5-firmware-custom synced 2024-11-22 02:08:48 +00:00
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Fix frequency band error from yesterday

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This commit is contained in:
OneOfEleven 2023-10-03 11:48:00 +01:00
parent 010ea0308a
commit c5c86d0ad0
7 changed files with 32 additions and 48 deletions
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2
am_fix.c
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@ -443,7 +443,7 @@
#if 0
if (gain_table_index[vfo] == gain_table_index_prev[vfo])
return; // no gain change
return; // no gain change - this is to reduce writing to the BK chip on ever call
#endif
#endif

46
app/app.c
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@ -543,47 +543,33 @@ void APP_StartListening(FUNCTION_Type_t Function, const bool reset_am_fix)
// ******************************************
{
// original setting
uint16_t lna_short = orig_lna_short;
uint16_t lna = orig_lna;
uint16_t mixer = orig_mixer;
uint16_t pga = orig_pga;
if (gRxVfo->AM_mode)
{ // AM
/*
#ifndef ENABLE_AM_FIX
const uint32_t rx_frequency = gRxVfo->pRX->Frequency;
#ifdef ENABLE_AM_FIX
// the RX gain abrutly reduces above this frequency
// I guess this is (one of) the freq the hardware switches the front ends over ?
if (rx_frequency <= 22640000)
{ // decrease front end gain - AM demodulator saturates at a slightly higher signal level
lna_short = 3; // 3 original
lna = 2; // 2 original
mixer = 3; // 3 original
pga = 3; // 6 original, 3 reduced
}
else
{ // increase the front end to compensate the reduced gain, but more gain decreases dynamic range :(
lna_short = 3; // 3 original
lna = 4; // 2 original, 4 increased
mixer = 3; // 3 original
pga = 7; // 6 original, 7 increased
}
#endif
*/
// what do these 4 other gain settings do ???
//BK4819_WriteRegister(BK4819_REG_12, 0x037B); // 000000 11 011 11 011
//BK4819_WriteRegister(BK4819_REG_11, 0x027B); // 000000 10 011 11 011
//BK4819_WriteRegister(BK4819_REG_10, 0x007A); // 000000 00 011 11 010
//BK4819_WriteRegister(BK4819_REG_14, 0x0019); // 000000 00 000 11 001
gNeverUsed = 0;
}
// TODO:
// if (gRxVfo->AM_mode)
// { // AM RX
// if (gEeprom.VfoInfo[gEeprom.RX_CHANNEL].AM_mode && gSetting_AM_fix)
// {
// AM_fix_10ms(gEeprom.RX_CHANNEL);
// }
// }
// else
BK4819_WriteRegister(BK4819_REG_13, (lna_short << 8) | (lna << 5) | (mixer << 3) | (pga << 0));
#else
// apply the front end gain settings
BK4819_WriteRegister(BK4819_REG_13, (lna_short << 8) | (lna << 5) | (mixer << 3) | (pga << 0));
#endif
}
// ******************************************

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firmware.bin
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firmware.packed.bin
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1
misc.c
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@ -217,7 +217,6 @@ uint8_t gScanDelay_10ms;
uint8_t gAircopySendCountdown;
#endif
uint8_t gFSKWriteIndex;
uint8_t gNeverUsed;
#ifdef ENABLE_NOAA
bool gIsNoaaMode;

1
misc.h
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@ -285,7 +285,6 @@ extern uint8_t gScanDelay_10ms;
extern uint8_t gAircopySendCountdown;
#endif
extern uint8_t gFSKWriteIndex;
extern uint8_t gNeverUsed;
#ifdef ENABLE_NOAA
extern bool gIsNoaaMode;
extern uint8_t gNoaaChannel;

4
radio.c
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@ -371,8 +371,8 @@ void RADIO_ConfigureChannel(const unsigned int VFO, const unsigned int configure
if (Frequency < frequencyBandTable[Band].lower)
Frequency = frequencyBandTable[Band].lower;
else
if (Frequency > frequencyBandTable[Band + 1].upper)
Frequency = frequencyBandTable[Band + 1].upper;
if (Frequency > frequencyBandTable[Band].upper)
Frequency = frequencyBandTable[Band].upper;
else
if (Channel >= FREQ_CHANNEL_FIRST)
Frequency = FREQUENCY_FloorToStep(Frequency, gEeprom.VfoInfo[VFO].StepFrequency, frequencyBandTable[Band].lower);