mirror of
https://github.com/liberatedsystems/RNode_Firmware_CE.git
synced 2024-12-27 00:19:24 -05:00
220 lines
7.4 KiB
C
220 lines
7.4 KiB
C
#if BOARD_MODEL == BOARD_TBEAM
|
|
#include <axp20x.h>
|
|
AXP20X_Class PMU;
|
|
|
|
#define BAT_V_MIN 3.15
|
|
#define BAT_V_MAX 4.14
|
|
|
|
void disablePeripherals() {
|
|
PMU.setPowerOutPut(AXP192_DCDC1, AXP202_OFF);
|
|
PMU.setPowerOutPut(AXP192_LDO2, AXP202_OFF);
|
|
PMU.setPowerOutPut(AXP192_LDO3, AXP202_OFF);
|
|
}
|
|
#elif BOARD_MODEL == BOARD_RNODE_NG_21 || BOARD_MODEL == BOARD_LORA32_V2_1
|
|
#define BAT_C_SAMPLES 7
|
|
#define BAT_D_SAMPLES 2
|
|
#define BAT_V_MIN 3.15
|
|
#define BAT_V_MAX 4.3
|
|
#define BAT_V_CHG 4.48
|
|
#define BAT_V_FLOAT 4.33
|
|
#define BAT_SAMPLES 5
|
|
const uint8_t pin_vbat = 35;
|
|
float bat_p_samples[BAT_SAMPLES];
|
|
float bat_v_samples[BAT_SAMPLES];
|
|
uint8_t bat_samples_count = 0;
|
|
int bat_discharging_samples = 0;
|
|
int bat_charging_samples = 0;
|
|
int bat_charged_samples = 0;
|
|
bool bat_voltage_dropping = false;
|
|
float bat_delay_v = 0;
|
|
#endif
|
|
|
|
uint32_t last_pmu_update = 0;
|
|
uint8_t pmu_target_pps = 1;
|
|
int pmu_update_interval = 1000/pmu_target_pps;
|
|
|
|
void measure_battery() {
|
|
#if BOARD_MODEL == BOARD_RNODE_NG_21 || BOARD_MODEL == BOARD_LORA32_V2_1
|
|
battery_installed = true;
|
|
battery_indeterminate = true;
|
|
bat_v_samples[bat_samples_count%BAT_SAMPLES] = (float)(analogRead(pin_vbat)) / 4095*2*3.3*1.1;
|
|
bat_p_samples[bat_samples_count%BAT_SAMPLES] = ((battery_voltage-BAT_V_MIN) / (BAT_V_MAX-BAT_V_MIN))*100.0;
|
|
|
|
bat_samples_count++;
|
|
if (!battery_ready && bat_samples_count >= BAT_SAMPLES) {
|
|
battery_ready = true;
|
|
}
|
|
|
|
if (battery_ready) {
|
|
|
|
battery_percent = 0;
|
|
for (uint8_t bi = 0; bi < BAT_SAMPLES; bi++) {
|
|
battery_percent += bat_p_samples[bi];
|
|
}
|
|
battery_percent = battery_percent/BAT_SAMPLES;
|
|
|
|
battery_voltage = 0;
|
|
for (uint8_t bi = 0; bi < BAT_SAMPLES; bi++) {
|
|
battery_voltage += bat_v_samples[bi];
|
|
}
|
|
battery_voltage = battery_voltage/BAT_SAMPLES;
|
|
|
|
if (bat_delay_v == 0) bat_delay_v = battery_voltage;
|
|
if (battery_percent > 100.0) battery_percent = 100.0;
|
|
if (battery_percent < 0.0) battery_percent = 0.0;
|
|
|
|
if (bat_samples_count%BAT_SAMPLES == 0) {
|
|
if (battery_voltage < bat_delay_v && battery_voltage < BAT_V_FLOAT) {
|
|
bat_voltage_dropping = true;
|
|
} else {
|
|
bat_voltage_dropping = false;
|
|
}
|
|
bat_samples_count = 0;
|
|
}
|
|
|
|
if (bat_voltage_dropping && battery_voltage < BAT_V_FLOAT) {
|
|
battery_state = BATTERY_STATE_DISCHARGING;
|
|
} else {
|
|
#if BOARD_MODEL == BOARD_RNODE_NG_21
|
|
battery_state = BATTERY_STATE_CHARGING;
|
|
#else
|
|
battery_state = BATTERY_STATE_DISCHARGING;
|
|
#endif
|
|
}
|
|
|
|
// if (bt_state == BT_STATE_CONNECTED) {
|
|
// SerialBT.printf("Bus voltage %.3fv. Unfiltered %.3fv.", battery_voltage, bat_v_samples[BAT_SAMPLES-1]);
|
|
// if (bat_voltage_dropping) {
|
|
// SerialBT.printf(" Voltage is dropping. Percentage %.1f%%.\n", battery_percent);
|
|
// } else {
|
|
// SerialBT.print(" Voltage is not dropping.\n");
|
|
// }
|
|
// }
|
|
}
|
|
|
|
#elif BOARD_MODEL == BOARD_TBEAM
|
|
float discharge_current = PMU.getBattDischargeCurrent();
|
|
float charge_current = PMU.getBattChargeCurrent();
|
|
battery_voltage = PMU.getBattVoltage()/1000.0;
|
|
// battery_percent = PMU.getBattPercentage()*1.0;
|
|
battery_installed = PMU.isBatteryConnect();
|
|
external_power = PMU.isVBUSPlug();
|
|
float ext_voltage = PMU.getVbusVoltage()/1000.0;
|
|
float ext_current = PMU.getVbusCurrent();
|
|
|
|
if (battery_installed) {
|
|
if (PMU.isChargeing()) {
|
|
battery_state = BATTERY_STATE_CHARGING;
|
|
battery_percent = ((battery_voltage-BAT_V_MIN) / (BAT_V_MAX-BAT_V_MIN))*100.0;
|
|
} else {
|
|
if (discharge_current > 0.0) {
|
|
battery_state = BATTERY_STATE_DISCHARGING;
|
|
battery_percent = ((battery_voltage-BAT_V_MIN) / (BAT_V_MAX-BAT_V_MIN))*100.0;
|
|
} else {
|
|
battery_state = BATTERY_STATE_CHARGED;
|
|
battery_percent = 100.0;
|
|
}
|
|
}
|
|
} else {
|
|
battery_state = BATTERY_STATE_DISCHARGING;
|
|
battery_percent = 0.0;
|
|
battery_voltage = 0.0;
|
|
}
|
|
|
|
if (battery_percent > 100.0) battery_percent = 100.0;
|
|
if (battery_percent < 0.0) battery_percent = 0.0;
|
|
|
|
float charge_watts = battery_voltage*(charge_current/1000.0);
|
|
float discharge_watts = battery_voltage*(discharge_current/1000.0);
|
|
float ext_watts = ext_voltage*(ext_current/1000.0);
|
|
|
|
battery_ready = true;
|
|
|
|
// if (bt_state == BT_STATE_CONNECTED) {
|
|
// if (battery_installed) {
|
|
// if (external_power) {
|
|
// SerialBT.printf("External power connected, drawing %.2fw, %.1fmA at %.1fV\n", ext_watts, ext_current, ext_voltage);
|
|
// } else {
|
|
// SerialBT.println("Running on battery");
|
|
// }
|
|
// SerialBT.printf("Battery percentage %.1f%%\n", battery_percent);
|
|
// SerialBT.printf("Battery voltage %.2fv\n", battery_voltage);
|
|
// // SerialBT.printf("Temperature %.1f%\n", auxillary_temperature);
|
|
|
|
// if (battery_state == BATTERY_STATE_CHARGING) {
|
|
// SerialBT.printf("Charging with %.2fw, %.1fmA at %.1fV\n", charge_watts, charge_current, battery_voltage);
|
|
// } else if (battery_state == BATTERY_STATE_DISCHARGING) {
|
|
// SerialBT.printf("Discharging at %.2fw, %.1fmA at %.1fV\n", discharge_watts, discharge_current, battery_voltage);
|
|
// } else if (battery_state == BATTERY_STATE_CHARGED) {
|
|
// SerialBT.printf("Battery charged\n");
|
|
// }
|
|
// } else {
|
|
// SerialBT.println("No battery installed");
|
|
// }
|
|
// SerialBT.println("");
|
|
// }
|
|
#endif
|
|
}
|
|
|
|
void update_pmu() {
|
|
if (millis()-last_pmu_update >= pmu_update_interval) {
|
|
measure_battery();
|
|
last_pmu_update = millis();
|
|
}
|
|
}
|
|
|
|
bool init_pmu() {
|
|
#if BOARD_MODEL == BOARD_RNODE_NG_21 || BOARD_MODEL == BOARD_LORA32_V2_1
|
|
pinMode(pin_vbat, INPUT);
|
|
return true;
|
|
#elif BOARD_MODEL == BOARD_TBEAM
|
|
Wire.begin(I2C_SDA, I2C_SCL);
|
|
if (PMU.begin(Wire, AXP192_SLAVE_ADDRESS) == AXP_FAIL) return false;
|
|
|
|
// Configure charging indicator
|
|
PMU.setChgLEDMode(AXP20X_LED_OFF);
|
|
|
|
// Turn off unused power sources to save power
|
|
PMU.setPowerOutPut(AXP192_DCDC1, AXP202_OFF);
|
|
PMU.setPowerOutPut(AXP192_DCDC2, AXP202_OFF);
|
|
PMU.setPowerOutPut(AXP192_LDO2, AXP202_OFF);
|
|
PMU.setPowerOutPut(AXP192_LDO3, AXP202_OFF);
|
|
PMU.setPowerOutPut(AXP192_EXTEN, AXP202_OFF);
|
|
|
|
// Set the power of LoRa and GPS module to 3.3V
|
|
PMU.setLDO2Voltage(3300); //LoRa VDD
|
|
PMU.setLDO3Voltage(3300); //GPS VDD
|
|
PMU.setDCDC1Voltage(3300); //3.3V Pin next to 21 and 22 is controlled by DCDC1
|
|
|
|
PMU.setPowerOutPut(AXP192_DCDC1, AXP202_ON);
|
|
|
|
// Turn on SX1276
|
|
PMU.setPowerOutPut(AXP192_LDO2, AXP202_ON);
|
|
|
|
// Turn off GPS
|
|
PMU.setPowerOutPut(AXP192_LDO3, AXP202_OFF);
|
|
|
|
pinMode(PMU_IRQ, INPUT_PULLUP);
|
|
attachInterrupt(PMU_IRQ, [] {
|
|
// pmu_irq = true;
|
|
}, FALLING);
|
|
|
|
PMU.adc1Enable(AXP202_VBUS_VOL_ADC1 |
|
|
AXP202_VBUS_CUR_ADC1 |
|
|
AXP202_BATT_CUR_ADC1 |
|
|
AXP202_BATT_VOL_ADC1,
|
|
AXP202_ON);
|
|
|
|
PMU.enableIRQ(AXP202_VBUS_REMOVED_IRQ |
|
|
AXP202_VBUS_CONNECT_IRQ |
|
|
AXP202_BATT_REMOVED_IRQ |
|
|
AXP202_BATT_CONNECT_IRQ,
|
|
AXP202_ON);
|
|
PMU.clearIRQ();
|
|
|
|
return true;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|