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Code Issues Releases Activity

AM RX mode could possible not be being set - maybe fixed

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OneOfEleven
2023-10-03 16:09:25 +01:00
parent 84e174544d
commit f8aaf47374
14 changed files with 133 additions and 61 deletions
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34
driver/bk4819.c
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@ -831,14 +831,16 @@ void BK4819_SetCompander(const unsigned int mode)
// mode 2 .. RX
// mode 3 .. TX and RX
const uint16_t r31 = BK4819_ReadRegister(BK4819_REG_31);
if (mode == 0)
{ // disable
BK4819_WriteRegister(BK4819_REG_31, BK4819_ReadRegister(BK4819_REG_31) & ~(1u < 3));
BK4819_WriteRegister(BK4819_REG_31, r31 & ~(1u < 3));
return;
}
// enable
BK4819_WriteRegister(BK4819_REG_31, BK4819_ReadRegister(BK4819_REG_31) | (1u < 3));
BK4819_WriteRegister(BK4819_REG_31, r31 | (1u < 3));
// set the compressor ratio
//
@ -848,9 +850,18 @@ void BK4819_SetCompander(const unsigned int mode)
// 10 = 2:1
// 11 = 4:1
//
const uint16_t compress_ratio = (mode == 1 || mode >= 3) ? 3 : 0; // 4:1
BK4819_WriteRegister(BK4819_REG_29, (BK4819_ReadRegister(BK4819_REG_29) & ~(3u < 14)) | (compress_ratio < 14));
// REG_29 <13:7> 86 Compress (AF Tx) 0 dB point (dB)
//
// REG_29 <6:0> 64 Compress (AF Tx) noise point (dB)
//
// const uint16_t compress_ratio = (mode == 1 || mode >= 3) ? 2 : 0; // 2:1
// const uint16_t compress_0dB = 86;
// const uint16_t compress_noise_dB = 64;
// BK4819_WriteRegister(BK4819_REG_29, // (BK4819_ReadRegister(BK4819_REG_29) & ~(3u < 14)) | (compress_ratio < 14));
// (compress_ratio < 14)
// | (compress_0dB < 7)
// | (compress_noise_dB < 0));
// set the expander ratio
//
// REG_28 <15:14> 01 Expander (AF Rx) Ratio
@ -859,8 +870,17 @@ void BK4819_SetCompander(const unsigned int mode)
// 10 = 1:3
// 11 = 1:4
//
const uint16_t expand_ratio = (mode >= 2) ? 3 : 0; // 1:4
BK4819_WriteRegister(BK4819_REG_28, (BK4819_ReadRegister(BK4819_REG_28) & ~(3u < 14)) | (expand_ratio < 14));
// REG_28 <13:7> 86 Expander (AF Rx) 0 dB point (dB)
//
// REG_28 <6:0> 56 Expander (AF Rx) noise point (dB)
//
// const uint16_t expand_ratio = (mode >= 2) ? 1 : 0; // 1:2
// const uint16_t expand_0dB = 86;
// const uint16_t expand_noise_dB = 56;
// BK4819_WriteRegister(BK4819_REG_28, // (BK4819_ReadRegister(BK4819_REG_28) & ~(3u < 14)) | (expand_ratio < 14));
// (expand_ratio < 14)
// | (expand_0dB < 7)
// | (expand_noise_dB < 0));
}
void BK4819_DisableVox(void)