ua1zbe
cdd9d32fb5
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70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
#include <Arduino.h>
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#include <Wire.h>
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#include "R1NeoBoard.h"
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#ifdef NRF52_POWER_MANAGEMENT
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// Static configuration for power management
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// Values set in variant.h defines
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const PowerMgtConfig power_config = {
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.lpcomp_ain_channel = PWRMGT_LPCOMP_AIN,
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.lpcomp_refsel = PWRMGT_LPCOMP_REFSEL,
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.voltage_bootlock = PWRMGT_VOLTAGE_BOOTLOCK
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};
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void R1NeoBoard::initiateShutdown(uint8_t reason) {
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// Disable LoRa module power before shutdown
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digitalWrite(SX126X_POWER_EN, LOW);
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// Signal IO controller that MCU is off, then release DCDC latch
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digitalWrite(PIN_SOFT_SHUTDOWN, LOW);
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digitalWrite(PIN_DCDC_EN_MCU_HOLD, LOW);
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if (reason == SHUTDOWN_REASON_LOW_VOLTAGE ||
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reason == SHUTDOWN_REASON_BOOT_PROTECT) {
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configureVoltageWake(power_config.lpcomp_ain_channel, power_config.lpcomp_refsel);
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}
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enterSystemOff(reason);
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}
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#endif // NRF52_POWER_MANAGEMENT
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void R1NeoBoard::begin() {
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// R1 Neo peculiarity: tell DCDC converter to stay powered.
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// Must be done as soon as practical during boot.
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pinMode(PIN_DCDC_EN_MCU_HOLD, OUTPUT);
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digitalWrite(PIN_DCDC_EN_MCU_HOLD, HIGH);
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// R1 Neo peculiarity: Tell I/O Controller device is on
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// Enables passthrough of buttons and LEDs
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pinMode(PIN_SOFT_SHUTDOWN, OUTPUT);
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digitalWrite(PIN_SOFT_SHUTDOWN, HIGH);
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NRF52BoardDCDC::begin();
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// button is active high and passed through from I/O controller
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pinMode(PIN_USER_BTN, INPUT);
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pinMode(PIN_BUZZER, OUTPUT);
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digitalWrite(PIN_BUZZER, LOW);
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// battery pins
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pinMode(PIN_BAT_CHG, INPUT);
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pinMode(PIN_VBAT_READ, INPUT);
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Wire.setPins(PIN_WIRE_SDA, PIN_WIRE_SCL);
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Wire.begin();
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pinMode(SX126X_POWER_EN, OUTPUT);
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#ifdef NRF52_POWER_MANAGEMENT
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// Boot voltage protection check (may not return if voltage too low)
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// We need to call this after we configure SX126X_POWER_EN as output but before we pull high
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checkBootVoltage(&power_config);
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#endif
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digitalWrite(SX126X_POWER_EN, HIGH);
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delay(10); // give sx1262 some time to power up
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}
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