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#include "HeltecTowerV2Board.h"
#include <Arduino.h>
#include <Wire.h>
extern void variant_shutdown();
#ifdef NRF52_POWER_MANAGEMENT
const PowerMgtConfig power_config = {
.lpcomp_ain_channel = PWRMGT_LPCOMP_AIN,
.lpcomp_refsel = PWRMGT_LPCOMP_REFSEL,
.voltage_bootlock = PWRMGT_VOLTAGE_BOOTLOCK
};
void HeltecTowerV2Board::initiateShutdown(uint8_t reason) {
pinMode(PIN_GPS_EN, OUTPUT);
digitalWrite(PIN_GPS_EN, !PIN_GPS_EN_ACTIVE);
pinMode(PIN_GPS_STANDBY, OUTPUT);
digitalWrite(PIN_GPS_STANDBY, LOW);
pinMode(PIN_GPS_RESET, OUTPUT);
digitalWrite(PIN_GPS_RESET, GPS_RESET_MODE);
loRaFEMControl.setSleepModeEnable();
bool enable_lpcomp = (reason == SHUTDOWN_REASON_LOW_VOLTAGE ||
reason == SHUTDOWN_REASON_BOOT_PROTECT);
pinMode(PIN_BAT_CTL, OUTPUT);
digitalWrite(PIN_BAT_CTL, enable_lpcomp ? HIGH : LOW);
if (enable_lpcomp) {
configureVoltageWake(power_config.lpcomp_ain_channel, power_config.lpcomp_refsel);
}
variant_shutdown();
enterSystemOff(reason);
}
#endif
void HeltecTowerV2Board::begin() {
NRF52Board::begin();
pinMode(P_LORA_TX_LED, OUTPUT);
digitalWrite(P_LORA_TX_LED, !LED_STATE_ON);
pinMode(PIN_BAT_CTL, OUTPUT);
digitalWrite(PIN_BAT_CTL, LOW);
#ifdef NRF52_POWER_MANAGEMENT
checkBootVoltage(&power_config);
#endif
Wire.setPins(PIN_BOARD_SDA, PIN_BOARD_SCL);
Wire.begin();
pinMode(PIN_GPS_EN, OUTPUT);
digitalWrite(PIN_GPS_EN, !PIN_GPS_EN_ACTIVE);
pinMode(PIN_GPS_RESET, OUTPUT);
digitalWrite(PIN_GPS_RESET, GPS_RESET_MODE);
pinMode(PIN_GPS_STANDBY, OUTPUT);
digitalWrite(PIN_GPS_STANDBY, HIGH);
loRaFEMControl.init();
}
void HeltecTowerV2Board::onBeforeTransmit() {
digitalWrite(P_LORA_TX_LED, LED_STATE_ON);
loRaFEMControl.setTxModeEnable();
}
void HeltecTowerV2Board::onAfterTransmit() {
digitalWrite(P_LORA_TX_LED, !LED_STATE_ON);
loRaFEMControl.setRxModeEnable();
}
uint16_t HeltecTowerV2Board::getBattMilliVolts() {
analogReadResolution(12);
analogReference(VBAT_AR_INTERNAL);
pinMode(PIN_VBAT_READ, INPUT);
pinMode(PIN_BAT_CTL, OUTPUT);
digitalWrite(PIN_BAT_CTL, HIGH);
delay(10);
int adcvalue = analogRead(PIN_VBAT_READ);
digitalWrite(PIN_BAT_CTL, LOW);
return (uint16_t)((float)adcvalue * MV_LSB * ADC_MULTIPLIER);
}
const char* HeltecTowerV2Board::getManufacturerName() const {
return "Heltec Tower V2";
}
void HeltecTowerV2Board::powerOff() {
pinMode(PIN_GPS_EN, OUTPUT);
digitalWrite(PIN_GPS_EN, !PIN_GPS_EN_ACTIVE);
pinMode(PIN_GPS_STANDBY, OUTPUT);
digitalWrite(PIN_GPS_STANDBY, LOW);
pinMode(PIN_GPS_RESET, OUTPUT);
digitalWrite(PIN_GPS_RESET, GPS_RESET_MODE);
loRaFEMControl.setSleepModeEnable();
pinMode(PIN_BAT_CTL, OUTPUT);
digitalWrite(PIN_BAT_CTL, LOW);
variant_shutdown();
sd_power_system_off();
}