forked from mirror/uv-k5-firmware
499 lines
14 KiB
C
499 lines
14 KiB
C
/* Copyright 2023 Dual Tachyon
|
|
* https://github.com/DualTachyon
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "bk4819.h"
|
|
#include "bsp/dp32g030/gpio.h"
|
|
#include "bsp/dp32g030/portcon.h"
|
|
#include "driver/gpio.h"
|
|
#include "driver/system.h"
|
|
#include "driver/systick.h"
|
|
|
|
uint16_t gBK4819_GpioOutState;
|
|
|
|
void BK4819_Init(void)
|
|
{
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCN);
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SDA);
|
|
|
|
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_7D, 0xE940);
|
|
BK4819_WriteRegister(BK4819_REG_48, 0xB3A8);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0x006F);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0x106B);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0x2067);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0x3062);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0x4050);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0x5047);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0x603A);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0x702C);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0x8041);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0x9037);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0xA025);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0xB017);
|
|
BK4819_WriteRegister(BK4819_REG_09, 0xC0E4);
|
|
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);
|
|
}
|
|
|
|
static uint16_t BK4819_ReadU16(void)
|
|
{
|
|
uint8_t i;
|
|
uint16_t Value;
|
|
|
|
PORTCON_PORTC_IE = (PORTCON_PORTC_IE & ~PORTCON_PORTC_IE_C2_MASK) | PORTCON_PORTC_IE_C2_BITS_ENABLE;
|
|
GPIOC->DIR = (GPIOC->DIR & ~GPIO_DIR_2_MASK) | GPIO_DIR_2_BITS_INPUT;
|
|
SYSTICK_DelayUs(1);
|
|
|
|
Value = 0;
|
|
for (i = 0; i < 16; i++) {
|
|
Value <<= 1;
|
|
Value |= GPIO_CheckBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SDA);
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
SYSTICK_DelayUs(1);
|
|
GPIO_ClearBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
SYSTICK_DelayUs(1);
|
|
}
|
|
PORTCON_PORTC_IE = (PORTCON_PORTC_IE & ~PORTCON_PORTC_IE_C2_MASK) | PORTCON_PORTC_IE_C2_BITS_DISABLE;
|
|
GPIOC->DIR = (GPIOC->DIR & ~GPIO_DIR_2_MASK) | GPIO_DIR_2_BITS_OUTPUT;
|
|
|
|
return Value;
|
|
}
|
|
|
|
uint16_t BK4819_GetRegister(BK4819_REGISTER_t Register)
|
|
{
|
|
uint16_t Value;
|
|
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCN);
|
|
GPIO_ClearBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
SYSTICK_DelayUs(1);
|
|
GPIO_ClearBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCN);
|
|
|
|
BK4819_WriteU8(Register | 0x80);
|
|
|
|
Value = BK4819_ReadU16();
|
|
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCN);
|
|
SYSTICK_DelayUs(1);
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SDA);
|
|
|
|
return Value;
|
|
}
|
|
|
|
void BK4819_WriteRegister(BK4819_REGISTER_t Register, uint16_t Data)
|
|
{
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCN);
|
|
GPIO_ClearBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
SYSTICK_DelayUs(1);
|
|
GPIO_ClearBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCN);
|
|
BK4819_WriteU8(Register);
|
|
SYSTICK_DelayUs(1);
|
|
BK4819_WriteU16(Data);
|
|
SYSTICK_DelayUs(1);
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCN);
|
|
SYSTICK_DelayUs(1);
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SDA);
|
|
}
|
|
|
|
void BK4819_WriteU8(uint8_t Data)
|
|
{
|
|
uint8_t i;
|
|
|
|
GPIO_ClearBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
for (i = 0; i < 8; i++) {
|
|
if ((Data & 0x80U) == 0) {
|
|
GPIO_ClearBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SDA);
|
|
} else {
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SDA);
|
|
}
|
|
SYSTICK_DelayUs(1);
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
SYSTICK_DelayUs(1);
|
|
Data <<= 1;
|
|
GPIO_ClearBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
SYSTICK_DelayUs(1);
|
|
}
|
|
}
|
|
|
|
void BK4819_WriteU16(uint16_t Data)
|
|
{
|
|
uint8_t i;
|
|
|
|
GPIO_ClearBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
for (i = 0; i < 16; i++) {
|
|
if ((Data & 0x8000U) == 0U) {
|
|
GPIO_ClearBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SDA);
|
|
} else {
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SDA);
|
|
}
|
|
SYSTICK_DelayUs(1);
|
|
GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
Data <<= 1;
|
|
SYSTICK_DelayUs(1);
|
|
GPIO_ClearBit(&GPIOC->DATA, GPIOC_PIN_BK4819_SCL);
|
|
SYSTICK_DelayUs(1);
|
|
}
|
|
}
|
|
|
|
void BK4819_SetAGC(uint8_t Value)
|
|
{
|
|
if (Value == 0) {
|
|
BK4819_WriteRegister(BK4819_REG_13, 0x03BE);
|
|
BK4819_WriteRegister(BK4819_REG_12, 0x037B);
|
|
BK4819_WriteRegister(BK4819_REG_11, 0x027B);
|
|
BK4819_WriteRegister(BK4819_REG_10, 0x007A);
|
|
BK4819_WriteRegister(BK4819_REG_14, 0x0019);
|
|
BK4819_WriteRegister(BK4819_REG_49, 0x2A38);
|
|
BK4819_WriteRegister(BK4819_REG_7B, 0x8420);
|
|
} else if (Value == 1) {
|
|
uint8_t i;
|
|
|
|
BK4819_WriteRegister(BK4819_REG_13, 0x03BE);
|
|
BK4819_WriteRegister(BK4819_REG_12, 0x037C);
|
|
BK4819_WriteRegister(BK4819_REG_11, 0x027B);
|
|
BK4819_WriteRegister(BK4819_REG_10, 0x007A);
|
|
BK4819_WriteRegister(BK4819_REG_14, 0x0018);
|
|
BK4819_WriteRegister(BK4819_REG_49, 0x2A38);
|
|
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) + 0x36U);
|
|
}
|
|
}
|
|
}
|
|
|
|
void BK4819_ToggleGpioOut(BK4819_GPIO_PIN_t Pin, bool bSet)
|
|
{
|
|
if (bSet) {
|
|
gBK4819_GpioOutState |= (0x40U >> Pin);
|
|
} else {
|
|
gBK4819_GpioOutState &= ~(0x40U >> Pin);
|
|
}
|
|
|
|
BK4819_WriteRegister(BK4819_REG_33, gBK4819_GpioOutState);
|
|
}
|
|
|
|
void BK4819_SetCDCSSCodeWord(uint32_t CodeWord)
|
|
{
|
|
// Enable CDCSS
|
|
// Transmit positive CDCSS code
|
|
// CDCSS Mode
|
|
// CDCSS 23bit
|
|
// Enable Auto CDCSS Bw Mode
|
|
// Enable Auto CTCSS Bw Mode
|
|
// CTCSS/CDCSS Tx Gain1 Tuning = 51
|
|
BK4819_WriteRegister(BK4819_REG_51, 0
|
|
| BK4819_REG_51_ENABLE_CxCSS
|
|
| BK4819_REG_51_GPIO6_PIN2_NORMAL
|
|
| BK4819_REG_51_TX_CDCSS_POSITIVE
|
|
| BK4819_REG_51_MODE_CDCSS
|
|
| BK4819_REG_51_CDCSS_23_BIT
|
|
| BK4819_REG_51_1050HZ_NO_DETECTION
|
|
| BK4819_REG_51_AUTO_CDCSS_BW_ENABLE
|
|
| BK4819_REG_51_AUTO_CTCSS_BW_ENABLE
|
|
| (51U << BK4819_REG_51_SHIFT_CxCSS_TX_GAIN1));
|
|
|
|
// CTC1 Frequency Control Word = 2775
|
|
BK4819_WriteRegister(BK4819_REG_07, 0
|
|
| BK4819_REG_07_MODE_CTC1
|
|
| (2775U << BK4819_REG_07_SHIFT_FREQUENCY));
|
|
|
|
// Set the code word
|
|
BK4819_WriteRegister(BK4819_REG_08, 0x0000 | ((CodeWord >> 0) & 0xFFF));
|
|
BK4819_WriteRegister(BK4819_REG_08, 0x8000 | ((CodeWord >> 12) & 0xFFF));
|
|
}
|
|
|
|
void BK4819_SetCTCSSBaudRate(uint32_t BaudRate)
|
|
{
|
|
uint16_t Config;
|
|
|
|
if (BaudRate == 2625) {
|
|
// Enable TxCTCSS
|
|
// CTCSS Mode
|
|
// 1050/4 Detect Enable
|
|
// Enable Auto CDCSS Bw Mode
|
|
// Enable Auto CTCSS Bw Mode
|
|
// CTCSS/CDCSS Tx Gain1 Tuning = 74
|
|
Config = 0x944A;
|
|
} else {
|
|
// Enable TxCTCSS
|
|
// CTCSS Mode
|
|
// Enable Auto CDCSS Bw Mode
|
|
// Enable Auto CTCSS Bw Mode
|
|
// CTCSS/CDCSS Tx Gain1 Tuning = 74
|
|
Config = 0x904A;
|
|
}
|
|
BK4819_WriteRegister(BK4819_REG_51, Config);
|
|
// CTC1 Frequency Control Word
|
|
BK4819_WriteRegister(BK4819_REG_07, 0
|
|
| BK4819_REG_07_MODE_CTC1
|
|
| ((BaudRate * 2065) / 1000) << BK4819_REG_07_SHIFT_FREQUENCY);
|
|
}
|
|
|
|
void BK4819_Set55HzTailDetection(void)
|
|
{
|
|
// CTC2 Frequency Control Word = round_nearest(25391 / 55) = 462
|
|
BK4819_WriteRegister(BK4819_REG_07, (1U << 13) | 462);
|
|
}
|
|
|
|
void BK4819_EnableVox(uint16_t Vox1Threshold, uint16_t Vox0Threshold)
|
|
{
|
|
uint16_t Value;
|
|
|
|
Value = BK4819_GetRegister(BK4819_REG_31);
|
|
// 0xA000 is undocumented?
|
|
BK4819_WriteRegister(BK4819_REG_46, 0xA000 | (Vox1Threshold & 0x07FF));
|
|
// 0x1800 is undocumented?
|
|
BK4819_WriteRegister(BK4819_REG_79, 0x1800 | (Vox0Threshold & 0x07FF));
|
|
// Bottom 12 bits are undocumented?
|
|
BK4819_WriteRegister(BK4819_REG_7A, 0x289A);
|
|
// Enable VOX
|
|
BK4819_WriteRegister(BK4819_REG_31, Value | 4);
|
|
}
|
|
|
|
void BK4819_SetFilterBandwidth(BK4819_FilterBandwidth_t Bandwidth)
|
|
{
|
|
if (Bandwidth == BK4819_FILTER_BW_WIDE) {
|
|
BK4819_WriteRegister(BK4819_REG_43, 0x3028);
|
|
} else if (Bandwidth == BK4819_FILTER_BW_NARROW) {
|
|
BK4819_WriteRegister(BK4819_REG_43, 0x4048);
|
|
}
|
|
}
|
|
|
|
void BK4819_SetupPowerAmplifier(uint16_t Bias, uint32_t Frequency)
|
|
{
|
|
uint8_t Gain;
|
|
|
|
if (Bias > 255) {
|
|
Bias = 255;
|
|
}
|
|
if (Frequency < 28000000) {
|
|
// Gain 1 = 1
|
|
// Gain 2 = 0
|
|
Gain = 0x08U;
|
|
} else {
|
|
// Gain 1 = 4
|
|
// Gain 2 = 2
|
|
Gain = 0x22U;
|
|
}
|
|
// Enable PACTLoutput
|
|
BK4819_WriteRegister(BK4819_REG_36, (Bias << 8) | 0x80U | Gain);
|
|
}
|
|
|
|
void BK4819_SetFrequency(uint32_t Frequency)
|
|
{
|
|
BK4819_WriteRegister(BK4819_REG_38, (Frequency >> 0) & 0xFFFF);
|
|
BK4819_WriteRegister(BK4819_REG_39, (Frequency >> 16) & 0xFFFF);
|
|
}
|
|
|
|
void BK4819_SetupSquelch(uint8_t SquelchOpenRSSIThresh, uint8_t SquelchCloseRSSIThresh, uint8_t SquelchOpenNoiseThresh, uint8_t SquelchCloseNoiseThresh, uint8_t SquelchCloseGlitchThresh, uint8_t SquelchOpenGlitchThresh)
|
|
{
|
|
BK4819_WriteRegister(BK4819_REG_70, 0);
|
|
BK4819_WriteRegister(BK4819_REG_4D, 0xA000 | SquelchCloseGlitchThresh);
|
|
// 0x6f = 0110 1111 meaning the default sql delays from the datasheet are used (101 and 111)
|
|
BK4819_WriteRegister(BK4819_REG_4E, 0x6F00 | SquelchOpenGlitchThresh);
|
|
BK4819_WriteRegister(BK4819_REG_4F, (SquelchCloseNoiseThresh << 8) | SquelchOpenNoiseThresh);
|
|
BK4819_WriteRegister(BK4819_REG_78, (SquelchOpenRSSIThresh << 8) | SquelchCloseRSSIThresh);
|
|
BK4819_SetAF(BK4819_AF_MUTE);
|
|
BK4819_RX_TurnOn();
|
|
}
|
|
|
|
void BK4819_SetAF(BK4819_AF_Type_t AF)
|
|
{
|
|
// AF Output Inverse Mode = Inverse
|
|
// Undocumented bits 0x2040
|
|
BK4819_WriteRegister(BK4819_REG_47, 0x6040 | (AF << 8));
|
|
}
|
|
|
|
void BK4819_RX_TurnOn(void)
|
|
{
|
|
// DSP Voltage Setting = 1
|
|
// ANA LDO = 2.7v
|
|
// VCO LDO = 2.7v
|
|
// RF LDO = 2.7v
|
|
// PLL LDO = 2.7v
|
|
// ANA LDO bypass
|
|
// VCO LDO bypass
|
|
// RF LDO bypass
|
|
// PLL LDO bypass
|
|
// Reserved bit is 1 instead of 0
|
|
// Enable DSP
|
|
// Enable XTAL
|
|
// Enable Band Gap
|
|
BK4819_WriteRegister(BK4819_REG_37, 0x1F0F);
|
|
|
|
// Turn off everything
|
|
BK4819_WriteRegister(BK4819_REG_30, 0);
|
|
|
|
// Enable VCO Calibration
|
|
// Enable RX Link
|
|
// Enable AF DAC
|
|
// Enable PLL/VCO
|
|
// Disable PA Gain
|
|
// Disable MIC ADC
|
|
// Disable TX DSP
|
|
// Enable RX DSP
|
|
BK4819_WriteRegister(BK4819_REG_30, 0xBFF1);
|
|
}
|
|
|
|
void BK4819_PickRXFilterPathBasedOnFrequency(uint32_t Frequency)
|
|
{
|
|
if (Frequency < 28000000) {
|
|
BK4819_ToggleGpioOut(BK4819_GPIO2_PIN30, true);
|
|
BK4819_ToggleGpioOut(BK4819_GPIO3_PIN31, false);
|
|
} else if (Frequency == 0xFFFFFFFF) {
|
|
BK4819_ToggleGpioOut(BK4819_GPIO2_PIN30, false);
|
|
BK4819_ToggleGpioOut(BK4819_GPIO3_PIN31, false);
|
|
} else {
|
|
BK4819_ToggleGpioOut(BK4819_GPIO2_PIN30, false);
|
|
BK4819_ToggleGpioOut(BK4819_GPIO3_PIN31, true);
|
|
}
|
|
}
|
|
|
|
void BK4819_DisableScramble(void)
|
|
{
|
|
uint16_t Value;
|
|
|
|
Value = BK4819_GetRegister(BK4819_REG_31);
|
|
BK4819_WriteRegister(BK4819_REG_31, Value & 0xFFFD);
|
|
}
|
|
|
|
void BK4819_EnableScramble(uint8_t Type)
|
|
{
|
|
uint16_t Value;
|
|
|
|
Value = BK4819_GetRegister(BK4819_REG_31);
|
|
BK4819_WriteRegister(BK4819_REG_31, Value | 2);
|
|
BK4819_WriteRegister(BK4819_REG_71, (Type * 0x0408) + 0x68DC);
|
|
}
|
|
|
|
void BK4819_DisableVox(void)
|
|
{
|
|
uint16_t Value;
|
|
|
|
Value = BK4819_GetRegister(BK4819_REG_31);
|
|
BK4819_WriteRegister(BK4819_REG_31, Value & 0xFFFB);
|
|
}
|
|
|
|
void BK4819_DisableDTMF_SelCall(void)
|
|
{
|
|
BK4819_WriteRegister(BK4819_REG_24, 0);
|
|
}
|
|
|
|
void BK4819_ConfigureDTMF_SelCall_and_UnknownRegister(void)
|
|
{
|
|
BK4819_WriteRegister(BK4819_REG_21, 0x06D8);
|
|
BK4819_WriteRegister(BK4819_REG_24, 0x8C7E);
|
|
}
|
|
|
|
void BK4819_PlayTone(uint16_t Frequency, bool bTuningGainSwitch)
|
|
{
|
|
uint16_t ToneConfig;
|
|
|
|
BK4819_EnterTxMute();
|
|
BK4819_SetAF(BK4819_AF_BEEP);
|
|
|
|
if (bTuningGainSwitch == 0) {
|
|
ToneConfig = 0
|
|
| BK4819_REG_70_ENABLE_TONE1
|
|
| (96U << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN);
|
|
} else {
|
|
ToneConfig = 0
|
|
| BK4819_REG_70_ENABLE_TONE1
|
|
| (28U << BK4819_REG_70_SHIFT_TONE1_TUNING_GAIN);
|
|
}
|
|
BK4819_WriteRegister(BK4819_REG_70, ToneConfig);
|
|
|
|
BK4819_WriteRegister(BK4819_REG_30, 0);
|
|
BK4819_WriteRegister(BK4819_REG_30, 0
|
|
| BK4819_REG_30_ENABLE_AF_DAC
|
|
| BK4819_REG_30_ENABLE_DISC_MODE
|
|
| BK4819_REG_30_ENABLE_TX_DSP);
|
|
;
|
|
|
|
BK4819_WriteRegister(BK4819_REG_71, (uint16_t)(Frequency * 10.32444));
|
|
}
|
|
|
|
void BK4819_EnterTxMute(void)
|
|
{
|
|
BK4819_WriteRegister(BK4819_REG_50, 0xBB20);
|
|
}
|
|
|
|
void BK4819_ExitTxMute(void)
|
|
{
|
|
BK4819_WriteRegister(BK4819_REG_50, 0x3B20);
|
|
}
|
|
|
|
void BK4819_Sleep(void)
|
|
{
|
|
BK4819_WriteRegister(BK4819_REG_30, 0);
|
|
BK4819_WriteRegister(BK4819_REG_37, 0x1D00);
|
|
}
|
|
|
|
void BK4819_TurnsOffTones_TurnsOnRX(void)
|
|
{
|
|
BK4819_WriteRegister(BK4819_REG_70, 0);
|
|
BK4819_SetAF(BK4819_AF_MUTE);
|
|
BK4819_ExitTxMute();
|
|
BK4819_WriteRegister(BK4819_REG_30, 0);
|
|
BK4819_WriteRegister(BK4819_REG_30, 0
|
|
| BK4819_REG_30_ENABLE_VCO_CALIB
|
|
| BK4819_REG_30_ENABLE_RX_LINK
|
|
| BK4819_REG_30_ENABLE_AF_DAC
|
|
| BK4819_REG_30_ENABLE_DISC_MODE
|
|
| BK4819_REG_30_ENABLE_PLL_VCO
|
|
| BK4819_REG_30_ENABLE_RX_DSP
|
|
);
|
|
}
|
|
|
|
void BK4819_SetupAircopy(void)
|
|
{
|
|
BK4819_WriteRegister(BK4819_REG_70, 0x00E0);
|
|
BK4819_WriteRegister(BK4819_REG_72, 0x3065);
|
|
BK4819_WriteRegister(BK4819_REG_58, 0x00C1);
|
|
BK4819_WriteRegister(BK4819_REG_5C, 0x5665);
|
|
BK4819_WriteRegister(BK4819_REG_5D, 0x4700);
|
|
}
|
|
|
|
void BK4819_ResetFSK(void)
|
|
{
|
|
BK4819_WriteRegister(BK4819_REG_3F, 0x0000);
|
|
BK4819_WriteRegister(BK4819_REG_59, 0x0068);
|
|
SYSTEM_DelayMs(30);
|
|
BK4819_Idle();
|
|
}
|
|
|
|
void BK4819_Idle(void)
|
|
{
|
|
BK4819_WriteRegister(BK4819_REG_30, 0x0000);
|
|
}
|
|
|