kuba/TEF6686_ESP32
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Support 12M and 55M oscillators

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Depending on the voltage of IO15, different crystal oscillators are supported.
IO15: 0V → 9.216M
IO15: 1V  → 12M
IO15: 2V  → 55.466M
IO15: (2V~3.3V]  → 4M
This commit is contained in:
ohmytime
2024-01-27 20:59:07 +08:00
parent de83b31f4e
commit 13aa84722e
4 changed files with 39 additions and 1 deletions
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18
src/TEF6686.cpp
View File

@@ -3,6 +3,7 @@
#include <Arduino.h>
#include <TimeLib.h> // https://github.com/PaulStoffregen/Time
#include "SPIFFS.h"
#include "constants.h"
unsigned long rdstimer = 0;
unsigned long bitStartTime = 0;
@@ -123,12 +124,27 @@ uint16_t TEF6686::TestAF() {
void TEF6686::init(byte TEF) {
uint8_t bootstatus;
int xtalADC = 0;
Tuner_I2C_Init();
devTEF_APPL_Get_Operation_Status(&bootstatus);
if (bootstatus == 0) {
Tuner_Patch(TEF);
delay(50);
if (digitalRead(15) == LOW) Tuner_Init(tuner_init_tab9216); else Tuner_Init(tuner_init_tab4000);
xtalADC = analogRead(15);
if (xtalADC > XTAL_0V_ADC && xtalADC < XTAL_0V_ADC + XTAL_ADC_TOL) {
Tuner_Init(tuner_init_tab9216);
log_v("XTAL : 9.216M");
} else if (xtalADC > XTAL_1V_ADC - XTAL_ADC_TOL && xtalADC < XTAL_1V_ADC + XTAL_ADC_TOL) {
Tuner_Init(tuner_init_tab12000);
log_v("XTAL : 12M");
} else if (xtalADC > XTAL_2V_ADC - XTAL_ADC_TOL && xtalADC < XTAL_2V_ADC + XTAL_ADC_TOL) {
Tuner_Init(tuner_init_tab55000);
log_v("XTAL : 55M");
} else if (xtalADC > XTAL_2V_ADC + XTAL_ADC_TOL) {
Tuner_Init(tuner_init_tab4000);
log_v("XTAL : 4M");
}
power(1);
Tuner_Init(tuner_init_tab);
}

2
src/TEF6686.h
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@@ -9,6 +9,8 @@
extern const unsigned char tuner_init_tab[] PROGMEM;
extern const unsigned char tuner_init_tab9216[] PROGMEM;
extern const unsigned char tuner_init_tab4000[] PROGMEM;
extern const unsigned char tuner_init_tab12000[] PROGMEM;
extern const unsigned char tuner_init_tab55000[] PROGMEM;
enum RDS_GROUPS {
RDS_GROUP_0A, RDS_GROUP_0B, RDS_GROUP_1A, RDS_GROUP_1B, RDS_GROUP_2A, RDS_GROUP_2B, RDS_GROUP_3A, RDS_GROUP_3B,

16
src/Tuner_Interface.cpp
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@@ -50,6 +50,22 @@ const unsigned char tuner_init_tab9216[] PROGMEM = {
2, 0xff, 100,
};
const unsigned char tuner_init_tab12000[] PROGMEM = {
3, 0x14, 0x00, 0x01,
2, 0xff, 50,
9, 0x40, 0x04, 0x01, 0x00, 0xB7, 0x1B, 0x00, 0x00, 0x00,
5, 0x40, 0x05, 0x01, 0x00, 0x01,
2, 0xff, 100,
};
const unsigned char tuner_init_tab55000[] PROGMEM = {
3, 0x14, 0x00, 0x01,
2, 0xff, 50,
9, 0x40, 0x04, 0x01, 0x03, 0x4E, 0x5A, 0xAE, 0x00, 0x01,
5, 0x40, 0x05, 0x01, 0x00, 0x01,
2, 0xff, 100,
};
bool Tuner_WriteBuffer(unsigned char *buf, uint16_t len) {
Wire.beginTransmission(0x64);
for (uint16_t i = 0; i < len; i++) Wire.write(buf[i]);

4
src/constants.h
View File

@@ -23,6 +23,10 @@
#define BATTERY_LOW_VALUE 3.0
#define BATTERY_FULL_VALUE 4.2
#define XTAL_0V_ADC 0
#define XTAL_1V_ADC 1050
#define XTAL_2V_ADC 2250
#define XTAL_ADC_TOL 300
#define LANGUAGE_CHS 14