453 lines
15 KiB
C
453 lines
15 KiB
C
#if BOARD_MODEL == BOARD_TBEAM
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#include <XPowersLib.h>
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XPowersLibInterface* PMU = NULL;
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#ifndef PMU_WIRE_PORT
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#define PMU_WIRE_PORT Wire
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#endif
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#define BAT_V_MIN 3.15
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#define BAT_V_MAX 4.14
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void disablePeripherals() {
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if (PMU) {
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// GNSS RTC PowerVDD
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PMU->enablePowerOutput(XPOWERS_VBACKUP);
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// LoRa VDD
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PMU->disablePowerOutput(XPOWERS_ALDO2);
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// GNSS VDD
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PMU->disablePowerOutput(XPOWERS_ALDO3);
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}
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}
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bool pmuInterrupt;
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void setPmuFlag()
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{
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pmuInterrupt = true;
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}
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#elif BOARD_MODEL == BOARD_RNODE_NG_21 || BOARD_MODEL == BOARD_LORA32_V2_1
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#define BAT_C_SAMPLES 7
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#define BAT_D_SAMPLES 2
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#define BAT_V_MIN 3.15
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#define BAT_V_MAX 4.3
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#define BAT_V_CHG 4.48
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#define BAT_V_FLOAT 4.33
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#define BAT_SAMPLES 5
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const uint8_t pin_vbat = 35;
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float bat_p_samples[BAT_SAMPLES];
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float bat_v_samples[BAT_SAMPLES];
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uint8_t bat_samples_count = 0;
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int bat_discharging_samples = 0;
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int bat_charging_samples = 0;
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int bat_charged_samples = 0;
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bool bat_voltage_dropping = false;
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float bat_delay_v = 0;
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#elif BOARD_MODEL == BOARD_RAK4631
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#include "nrfx_power.h"
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#define BAT_C_SAMPLES 7
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#define BAT_D_SAMPLES 2
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#define BAT_V_MIN 2.75
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#define BAT_V_MAX 4.2
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#define BAT_V_FLOAT 4.22
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#define BAT_SAMPLES 5
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#define VBAT_MV_PER_LSB (0.73242188F) // 3.0V ADC range and 12 - bit ADC resolution = 3000mV / 4096
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#define VBAT_DIVIDER_COMP (1.73) // Compensation factor for the VBAT divider
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#define VBAT_MV_PER_LSB_FIN (VBAT_DIVIDER_COMP * VBAT_MV_PER_LSB)
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#define PIN_VBAT WB_A0
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float bat_p_samples[BAT_SAMPLES];
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float bat_v_samples[BAT_SAMPLES];
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uint8_t bat_samples_count = 0;
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int bat_discharging_samples = 0;
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int bat_charging_samples = 0;
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int bat_charged_samples = 0;
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bool bat_voltage_dropping = false;
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float bat_delay_v = 0;
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#endif
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uint32_t last_pmu_update = 0;
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uint8_t pmu_target_pps = 1;
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int pmu_update_interval = 1000/pmu_target_pps;
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uint8_t pmu_rc = 0;
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#define PMU_R_INTERVAL 5
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void kiss_indicate_battery();
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void measure_battery() {
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#if BOARD_MODEL == BOARD_RNODE_NG_21 || BOARD_MODEL == BOARD_LORA32_V2_1
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battery_installed = true;
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battery_indeterminate = true;
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bat_v_samples[bat_samples_count%BAT_SAMPLES] = (float)(analogRead(pin_vbat)) / 4095*2*3.3*1.1;
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bat_p_samples[bat_samples_count%BAT_SAMPLES] = ((battery_voltage-BAT_V_MIN) / (BAT_V_MAX-BAT_V_MIN))*100.0;
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bat_samples_count++;
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if (!battery_ready && bat_samples_count >= BAT_SAMPLES) {
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battery_ready = true;
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}
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if (battery_ready) {
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battery_percent = 0;
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for (uint8_t bi = 0; bi < BAT_SAMPLES; bi++) {
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battery_percent += bat_p_samples[bi];
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}
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battery_percent = battery_percent/BAT_SAMPLES;
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battery_voltage = 0;
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for (uint8_t bi = 0; bi < BAT_SAMPLES; bi++) {
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battery_voltage += bat_v_samples[bi];
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}
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battery_voltage = battery_voltage/BAT_SAMPLES;
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if (bat_delay_v == 0) bat_delay_v = battery_voltage;
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if (battery_percent > 100.0) battery_percent = 100.0;
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if (battery_percent < 0.0) battery_percent = 0.0;
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if (bat_samples_count%BAT_SAMPLES == 0) {
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if (battery_voltage < bat_delay_v && battery_voltage < BAT_V_FLOAT) {
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bat_voltage_dropping = true;
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} else {
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bat_voltage_dropping = false;
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}
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bat_samples_count = 0;
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}
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if (bat_voltage_dropping && battery_voltage < BAT_V_FLOAT) {
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battery_state = BATTERY_STATE_DISCHARGING;
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} else {
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#if BOARD_MODEL == BOARD_RNODE_NG_21
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battery_state = BATTERY_STATE_CHARGING;
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#else
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battery_state = BATTERY_STATE_DISCHARGING;
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#endif
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}
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// if (bt_state == BT_STATE_CONNECTED) {
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// SerialBT.printf("Bus voltage %.3fv. Unfiltered %.3fv.", battery_voltage, bat_v_samples[BAT_SAMPLES-1]);
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// if (bat_voltage_dropping) {
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// SerialBT.printf(" Voltage is dropping. Percentage %.1f%%.\n", battery_percent);
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// } else {
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// SerialBT.print(" Voltage is not dropping.\n");
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// }
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// }
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}
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#elif BOARD_MODEL == BOARD_TBEAM
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if (PMU) {
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float discharge_current = 0;
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float charge_current = 0;
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float ext_voltage = 0;
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float ext_current = 0;
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if (PMU->getChipModel() == XPOWERS_AXP192) {
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discharge_current = ((XPowersAXP192*)PMU)->getBattDischargeCurrent();
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charge_current = ((XPowersAXP192*)PMU)->getBatteryChargeCurrent();
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battery_voltage = PMU->getBattVoltage()/1000.0;
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// battery_percent = PMU->getBattPercentage()*1.0;
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battery_installed = PMU->isBatteryConnect();
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external_power = PMU->isVbusIn();
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ext_voltage = PMU->getVbusVoltage()/1000.0;
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ext_current = ((XPowersAXP192*)PMU)->getVbusCurrent();
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}
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else if (PMU->getChipModel() == XPOWERS_AXP2101) {
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battery_voltage = PMU->getBattVoltage()/1000.0;
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// battery_percent = PMU->getBattPercentage()*1.0;
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battery_installed = PMU->isBatteryConnect();
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external_power = PMU->isVbusIn();
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ext_voltage = PMU->getVbusVoltage()/1000.0;
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}
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if (battery_installed) {
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if (PMU->isCharging()) {
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battery_state = BATTERY_STATE_CHARGING;
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battery_percent = ((battery_voltage-BAT_V_MIN) / (BAT_V_MAX-BAT_V_MIN))*100.0;
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} else {
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if (PMU->isDischarge()) {
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battery_state = BATTERY_STATE_DISCHARGING;
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battery_percent = ((battery_voltage-BAT_V_MIN) / (BAT_V_MAX-BAT_V_MIN))*100.0;
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} else {
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battery_state = BATTERY_STATE_CHARGED;
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battery_percent = 100.0;
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}
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}
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} else {
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battery_state = BATTERY_STATE_DISCHARGING;
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battery_percent = 0.0;
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battery_voltage = 0.0;
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}
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if (battery_percent > 100.0) battery_percent = 100.0;
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if (battery_percent < 0.0) battery_percent = 0.0;
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float charge_watts = battery_voltage*(charge_current/1000.0);
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float discharge_watts = battery_voltage*(discharge_current/1000.0);
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float ext_watts = ext_voltage*(ext_current/1000.0);
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battery_ready = true;
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// if (bt_state == BT_STATE_CONNECTED) {
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// if (battery_installed) {
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// if (external_power) {
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// SerialBT.printf("External power connected, drawing %.2fw, %.1fmA at %.1fV\n", ext_watts, ext_current, ext_voltage);
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// } else {
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// SerialBT.println("Running on battery");
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// }
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// SerialBT.printf("Battery percentage %.1f%%\n", battery_percent);
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// SerialBT.printf("Battery voltage %.2fv\n", battery_voltage);
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// // SerialBT.printf("Temperature %.1f%\n", auxillary_temperature);
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// if (battery_state == BATTERY_STATE_CHARGING) {
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// SerialBT.printf("Charging with %.2fw, %.1fmA at %.1fV\n", charge_watts, charge_current, battery_voltage);
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// } else if (battery_state == BATTERY_STATE_DISCHARGING) {
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// SerialBT.printf("Discharging at %.2fw, %.1fmA at %.1fV\n", discharge_watts, discharge_current, battery_voltage);
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// } else if (battery_state == BATTERY_STATE_CHARGED) {
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// SerialBT.printf("Battery charged\n");
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// }
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// } else {
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// SerialBT.println("No battery installed");
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// }
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// SerialBT.println("");
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// }
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}
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else {
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battery_ready = false;
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}
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#elif BOARD_MODEL == BOARD_RAK4631
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battery_installed = true;
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battery_indeterminate = false;
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bat_v_samples[bat_samples_count%BAT_SAMPLES] = (float)(analogRead(PIN_VBAT)) * VBAT_MV_PER_LSB_FIN;
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if (bat_v_samples[bat_samples_count%BAT_SAMPLES] < 3300) {
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bat_p_samples[bat_samples_count%BAT_SAMPLES] = 0;
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}
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else if (bat_v_samples[bat_samples_count%BAT_SAMPLES] < 3600)
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{
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bat_v_samples[bat_samples_count%BAT_SAMPLES] -= 3300;
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bat_p_samples[bat_samples_count%BAT_SAMPLES] = bat_v_samples[bat_samples_count%BAT_SAMPLES] / 30;
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} else {
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bat_v_samples[bat_samples_count%BAT_SAMPLES] -= 3600;
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}
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bat_p_samples[bat_samples_count%BAT_SAMPLES] = 10 + (bat_v_samples[bat_samples_count%BAT_SAMPLES] * 0.15F);
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bat_samples_count++;
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if (!battery_ready && bat_samples_count >= BAT_SAMPLES) {
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battery_ready = true;
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}
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battery_percent = 0;
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for (uint8_t bi = 0; bi < BAT_SAMPLES; bi++) {
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battery_percent += bat_p_samples[bi];
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}
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battery_percent = battery_percent/BAT_SAMPLES;
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battery_voltage = 0;
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for (uint8_t bi = 0; bi < BAT_SAMPLES; bi++) {
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battery_voltage += bat_v_samples[bi];
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}
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battery_voltage = battery_voltage/BAT_SAMPLES;
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if (bat_delay_v == 0) bat_delay_v = battery_voltage;
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if (battery_percent > 100.0) battery_percent = 100.0;
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if (battery_percent < 0.0) battery_percent = 0.0;
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if (bat_samples_count%BAT_SAMPLES == 0) {
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if (battery_voltage < bat_delay_v && battery_voltage < BAT_V_FLOAT) {
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bat_voltage_dropping = true;
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} else {
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bat_voltage_dropping = false;
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}
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bat_samples_count = 0;
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}
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nrfx_power_usb_state_t usbstate = nrfx_power_usbstatus_get();
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if (usbstate == NRFX_POWER_USB_STATE_CONNECTED || usbstate == NRFX_POWER_USB_STATE_READY) {
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// charging
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battery_state = BATTERY_STATE_CHARGING;
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} else {
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battery_state = BATTERY_STATE_DISCHARGING;
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}
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if (battery_percent >= 98) {
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battery_state = BATTERY_STATE_CHARGED;
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}
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#if HAS_BLE
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if ((bt_state == BT_STATE_ON) || bt_state == BT_STATE_CONNECTED) {
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if (battery_state != BATTERY_STATE_CHARGING) {
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blebas.write(battery_percent);
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} else {
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blebas.write(100);
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}
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}
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#endif
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#endif
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if (battery_ready) {
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pmu_rc++;
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if (pmu_rc%PMU_R_INTERVAL == 0) {
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kiss_indicate_battery();
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}
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}
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}
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void update_pmu() {
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if (millis()-last_pmu_update >= pmu_update_interval) {
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measure_battery();
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last_pmu_update = millis();
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}
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}
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bool init_pmu() {
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#if BOARD_MODEL == BOARD_RNODE_NG_21 || BOARD_MODEL == BOARD_LORA32_V2_1
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pinMode(pin_vbat, INPUT);
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return true;
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#elif BOARD_MODEL == BOARD_TBEAM
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Wire.begin(I2C_SDA, I2C_SCL);
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if (!PMU) {
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PMU = new XPowersAXP2101(PMU_WIRE_PORT);
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if (!PMU->init()) {
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Serial.println("Warning: Failed to find AXP2101 power management");
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delete PMU;
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PMU = NULL;
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} else {
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Serial.println("AXP2101 PMU init succeeded, using AXP2101 PMU");
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}
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}
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if (!PMU) {
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PMU = new XPowersAXP192(PMU_WIRE_PORT);
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if (!PMU->init()) {
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Serial.println("Warning: Failed to find AXP192 power management");
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delete PMU;
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PMU = NULL;
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} else {
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Serial.println("AXP192 PMU init succeeded, using AXP192 PMU");
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}
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}
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if (!PMU) {
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return false;
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}
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// Configure charging indicator
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PMU->setChargingLedMode(XPOWERS_CHG_LED_OFF);
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pinMode(PMU_IRQ, INPUT_PULLUP);
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attachInterrupt(PMU_IRQ, setPmuFlag, FALLING);
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if (PMU->getChipModel() == XPOWERS_AXP192) {
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// Turn off unused power sources to save power
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PMU->disablePowerOutput(XPOWERS_DCDC1);
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PMU->disablePowerOutput(XPOWERS_DCDC2);
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PMU->disablePowerOutput(XPOWERS_LDO2);
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PMU->disablePowerOutput(XPOWERS_LDO3);
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// Set the power of LoRa and GPS module to 3.3V
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// LoRa
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PMU->setPowerChannelVoltage(XPOWERS_LDO2, 3300);
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// GPS
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PMU->setPowerChannelVoltage(XPOWERS_LDO3, 3300);
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// OLED
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PMU->setPowerChannelVoltage(XPOWERS_DCDC1, 3300);
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// Turn on LoRa
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PMU->enablePowerOutput(XPOWERS_LDO2);
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// Turn on GPS
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//PMU->enablePowerOutput(XPOWERS_LDO3);
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// protected oled power source
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PMU->setProtectedChannel(XPOWERS_DCDC1);
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// protected esp32 power source
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PMU->setProtectedChannel(XPOWERS_DCDC3);
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// enable oled power
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PMU->enablePowerOutput(XPOWERS_DCDC1);
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PMU->disableIRQ(XPOWERS_AXP192_ALL_IRQ);
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PMU->enableIRQ(XPOWERS_AXP192_VBUS_REMOVE_IRQ |
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XPOWERS_AXP192_VBUS_INSERT_IRQ |
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XPOWERS_AXP192_BAT_CHG_DONE_IRQ |
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XPOWERS_AXP192_BAT_CHG_START_IRQ |
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XPOWERS_AXP192_BAT_REMOVE_IRQ |
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XPOWERS_AXP192_BAT_INSERT_IRQ |
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XPOWERS_AXP192_PKEY_SHORT_IRQ
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);
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}
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else if (PMU->getChipModel() == XPOWERS_AXP2101) {
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// Turn off unused power sources to save power
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PMU->disablePowerOutput(XPOWERS_DCDC2);
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PMU->disablePowerOutput(XPOWERS_DCDC3);
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PMU->disablePowerOutput(XPOWERS_DCDC4);
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PMU->disablePowerOutput(XPOWERS_DCDC5);
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PMU->disablePowerOutput(XPOWERS_ALDO1);
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PMU->disablePowerOutput(XPOWERS_ALDO2);
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PMU->disablePowerOutput(XPOWERS_ALDO3);
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PMU->disablePowerOutput(XPOWERS_ALDO4);
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PMU->disablePowerOutput(XPOWERS_BLDO1);
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PMU->disablePowerOutput(XPOWERS_BLDO2);
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PMU->disablePowerOutput(XPOWERS_DLDO1);
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PMU->disablePowerOutput(XPOWERS_DLDO2);
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PMU->disablePowerOutput(XPOWERS_VBACKUP);
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// Set the power of LoRa and GPS module to 3.3V
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// LoRa
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PMU->setPowerChannelVoltage(XPOWERS_ALDO2, 3300);
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// GPS
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PMU->setPowerChannelVoltage(XPOWERS_ALDO3, 3300);
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PMU->setPowerChannelVoltage(XPOWERS_VBACKUP, 3300);
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// ESP32 VDD
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// ! No need to set, automatically open , Don't close it
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// PMU->setPowerChannelVoltage(XPOWERS_DCDC1, 3300);
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// PMU->setProtectedChannel(XPOWERS_DCDC1);
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PMU->setProtectedChannel(XPOWERS_DCDC1);
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// LoRa VDD
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PMU->enablePowerOutput(XPOWERS_ALDO2);
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// GNSS VDD
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//PMU->enablePowerOutput(XPOWERS_ALDO3);
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// GNSS RTC PowerVDD
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//PMU->enablePowerOutput(XPOWERS_VBACKUP);
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}
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PMU->enableSystemVoltageMeasure();
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PMU->enableVbusVoltageMeasure();
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PMU->enableBattVoltageMeasure();
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// It is necessary to disable the detection function of the TS pin on the board
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// without the battery temperature detection function, otherwise it will cause abnormal charging
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PMU->disableTSPinMeasure();
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// Set the time of pressing the button to turn off
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PMU->setPowerKeyPressOffTime(XPOWERS_POWEROFF_4S);
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return true;
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#elif BOARD_MODEL == BOARD_RAK4631 || BOARD_MODEL == BOARD_FREENODE
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// board doesn't have PMU but we can measure batt voltage
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// prep ADC for reading battery level
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analogReference(AR_INTERNAL_3_0);
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// Set the resolution to 12-bit (0..4095)
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analogReadResolution(12);
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// Let the ADC settle
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delay(1);
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// Get a single ADC sample and throw it away
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float raw = analogRead(PIN_VBAT);
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return true;
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#else
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return false;
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#endif
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}
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