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Squelch tuning

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OneOfEleven
2023-10-05 22:44:44 +01:00
parent 5c346c8466
commit ec5e9dde66
13 changed files with 111 additions and 96 deletions
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32
driver/bk4819.c
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@ -738,7 +738,7 @@ void BK4819_SetupSquelch(
//
BK4819_WriteRegister(BK4819_REG_70, 0);
// Glitch threshold for Squelch
// Glitch threshold for Squelch = close
//
// 0 ~ 255
//
@ -748,47 +748,49 @@ void BK4819_SetupSquelch(
//
// <15:14> 1 ???
//
// <13:11> 5 Squelch = 1 Delay Setting
// <13:11> 5 Squelch = open Delay Setting
// 0 ~ 7
//
// <10:9> 7 Squelch = 0 Delay Setting
// <10:9> 7 Squelch = close Delay Setting
// 0 ~ 3
//
// <8> 0 ???
//
// <7:0> 8 Glitch threshold for Squelch = 1
// <7:0> 8 Glitch threshold for Squelch = open
// 0 ~ 255
//
BK4819_WriteRegister(BK4819_REG_4E, // 01 101 11 1 00000000
#ifndef ENABLE_FASTER_CHANNEL_SCAN
// original
(1u << 14) | // 1 ???
(5u << 11) | // 5 squelch = 1 delay .. 0 ~ 7
(3u << 9) | // 3 squelch = 0 delay .. 0 ~ 3
SquelchOpenGlitchThresh); // 0 ~ 255
// original (*)
(1u << 14) | // 1 ???
(3u << 11) | // *5 squelch = open delay .. 0 ~ 7
(2u << 9) | // *3 squelch = close delay .. 0 ~ 3
SquelchOpenGlitchThresh); // 0 ~ 255
#else
// faster (but twitchier)
(1u << 14) | // 1 ???
SquelchOpenGlitchThresh); // 0 ~ 255
(1u << 14) | // 1 ???
(2u << 11) | // *5 squelch = open delay .. 0 ~ 7
(1u << 9) | // *3 squelch = close delay .. 0 ~ 3
SquelchOpenGlitchThresh); // 0 ~ 255
#endif
// REG_4F
//
// <14:8> 47 Ex-noise threshold for Squelch = 0
// <14:8> 47 Ex-noise threshold for Squelch = close
// 0 ~ 127
//
// <7> ???
//
// <6:0> 46 Ex-noise threshold for Squelch = 1
// <6:0> 46 Ex-noise threshold for Squelch = open
// 0 ~ 127
//
BK4819_WriteRegister(BK4819_REG_4F, ((uint16_t)SquelchCloseNoiseThresh << 8) | SquelchOpenNoiseThresh);
// REG_78
//
// <15:8> 72 RSSI threshold for Squelch = 1 0.5dB/step
// <15:8> 72 RSSI threshold for Squelch = open 0.5dB/step
//
// <7:0> 70 RSSI threshold for Squelch = 0 0.5dB/step
// <7:0> 70 RSSI threshold for Squelch = close 0.5dB/step
//
BK4819_WriteRegister(BK4819_REG_78, ((uint16_t)SquelchOpenRSSIThresh << 8) | SquelchCloseRSSIThresh);