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Code Issues Releases Activity

Fix frequency band bug

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This commit is contained in:
OneOfEleven
2023-09-17 11:06:42 +01:00
parent 19fa9718f5
commit 628f00a939
7 changed files with 68 additions and 17 deletions
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30
driver/bk4819.c
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@ -41,12 +41,19 @@ void BK4819_Init(void)
BK4819_WriteRegister(BK4819_REG_00, 0x8000);
BK4819_WriteRegister(BK4819_REG_00, 0x0000);
BK4819_WriteRegister(BK4819_REG_37, 0x1D0F);
BK4819_WriteRegister(BK4819_REG_36, 0x0022);
BK4819_SetAGC(0);
BK4819_WriteRegister(BK4819_REG_19, 0x1041);
BK4819_WriteRegister(BK4819_REG_19, 0b0001000001000001); // <15> MIC AGC 1 = disable 0 = enable
BK4819_WriteRegister(BK4819_REG_7D, 0xE940);
// RX AF level
BK4819_WriteRegister(BK4819_REG_48, 0xB3A8);
BK4819_WriteRegister(BK4819_REG_09, 0x006F);
BK4819_WriteRegister(BK4819_REG_09, 0x106B);
BK4819_WriteRegister(BK4819_REG_09, 0x2067);
@ -63,9 +70,12 @@ void BK4819_Init(void)
BK4819_WriteRegister(BK4819_REG_09, 0xD0CB);
BK4819_WriteRegister(BK4819_REG_09, 0xE0B5);
BK4819_WriteRegister(BK4819_REG_09, 0xF09F);
BK4819_WriteRegister(BK4819_REG_1F, 0x5454);
BK4819_WriteRegister(BK4819_REG_3E, 0xA037);
gBK4819_GpioOutState = 0x9000;
BK4819_WriteRegister(BK4819_REG_33, 0x9000);
BK4819_WriteRegister(BK4819_REG_3F, 0);
}
@ -191,7 +201,13 @@ void BK4819_SetAGC(uint8_t Value)
{
if (Value == 0)
{
BK4819_WriteRegister(BK4819_REG_13, 0x03BE);
// LNA_SHORT .. 0dB
// LNA ........ 14dB
// MIXER ...... 0dB
// PGA ........ -3dB
//
BK4819_WriteRegister(BK4819_REG_13, (3u << 8) | (2u << 5) | (3u << 3) | (6u << 0)); // 000000 11 101 11 110
BK4819_WriteRegister(BK4819_REG_12, 0x037B);
BK4819_WriteRegister(BK4819_REG_11, 0x027B);
BK4819_WriteRegister(BK4819_REG_10, 0x007A);
@ -203,7 +219,14 @@ void BK4819_SetAGC(uint8_t Value)
if (Value == 1)
{
unsigned int i;
BK4819_WriteRegister(BK4819_REG_13, 0x03BE);
// LNA_SHORT .. 0dB
// LNA ........ 14dB
// MIXER ...... 0dB
// PGA ........ -3dB
//
BK4819_WriteRegister(BK4819_REG_13, (3u << 8) | (2u << 5) | (3u << 3) | (6u << 0)); // 000000 11 101 11 110
BK4819_WriteRegister(BK4819_REG_12, 0x037C);
BK4819_WriteRegister(BK4819_REG_11, 0x027B);
BK4819_WriteRegister(BK4819_REG_10, 0x007A);
@ -212,6 +235,7 @@ void BK4819_SetAGC(uint8_t Value)
BK4819_WriteRegister(BK4819_REG_7B, 0x318C);
BK4819_WriteRegister(BK4819_REG_7C, 0x595E);
BK4819_WriteRegister(BK4819_REG_20, 0x8DEF);
for (i = 0; i < 8; i++)
// Bug? The bit 0x2000 below overwrites the (i << 13)
BK4819_WriteRegister(BK4819_REG_06, ((i << 13) | 0x2500u) + 0x036u);