Files
MeshCore/variants/heltec_t114/T114Board.cpp
2026-01-31 23:48:28 +11:00

59 lines
1.6 KiB
C++

#include "T114Board.h"
#include <Arduino.h>
#include <Wire.h>
#ifdef NRF52_POWER_MANAGEMENT
// Static configuration for power management
// Values come from variant.h defines
const PowerMgtConfig power_config = {
.lpcomp_ain_channel = PWRMGT_LPCOMP_AIN,
.lpcomp_refsel = PWRMGT_LPCOMP_REFSEL,
.voltage_bootlock = PWRMGT_VOLTAGE_BOOTLOCK
};
void T114Board::initiateShutdown(uint8_t reason) {
#if ENV_INCLUDE_GPS == 1
pinMode(GPS_EN, OUTPUT);
digitalWrite(GPS_EN, LOW);
#endif
digitalWrite(SX126X_POWER_EN, LOW);
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);
}
enterSystemOff(reason);
}
#endif // NRF52_POWER_MANAGEMENT
void T114Board::begin() {
NRF52Board::begin();
pinMode(PIN_VBAT_READ, INPUT);
#if defined(PIN_BOARD_SDA) && defined(PIN_BOARD_SCL)
Wire.setPins(PIN_BOARD_SDA, PIN_BOARD_SCL);
#endif
Wire.begin();
#ifdef P_LORA_TX_LED
pinMode(P_LORA_TX_LED, OUTPUT);
digitalWrite(P_LORA_TX_LED, HIGH);
#endif
pinMode(SX126X_POWER_EN, OUTPUT);
#ifdef NRF52_POWER_MANAGEMENT
// Boot voltage protection check (may not return if voltage too low)
// We need to call this after we configure SX126X_POWER_EN as output but before we pull high
checkBootVoltage(&power_config);
#endif
digitalWrite(SX126X_POWER_EN, HIGH);
delay(10); // give sx1262 some time to power up
}