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https://github.com/meshcore-dev/MeshCore.git
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1f59e52880
Added NRF52840 power management core functionality: - Boot‑voltage lockout - Initial support for shutdown/reset reason storage and capture (via RESETREAS/GPREGRET2) - LPCOMP wake (for voltage-driven shutdowns) - VBUS wake (for voltage-driven shutdowns) - Per-board shutdown handler for board-specific tasks - Exposed CLI queries for power‑management status in CommonCLI.cpp - Added documentation in docs/nrf52_power_management.md. - Enabled power management support in Xiao nRF52840, RAK4631, Heltec T114 boards
53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
#include <Arduino.h>
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#include <Wire.h>
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#include "RAK4631Board.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 RAK4631Board::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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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 RAK4631Board::begin() {
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NRF52BoardDCDC::begin();
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pinMode(PIN_VBAT_READ, INPUT);
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#ifdef PIN_USER_BTN
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pinMode(PIN_USER_BTN, INPUT_PULLUP);
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#endif
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#ifdef PIN_USER_BTN_ANA
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pinMode(PIN_USER_BTN_ANA, INPUT_PULLUP);
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#endif
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#if defined(PIN_BOARD_SDA) && defined(PIN_BOARD_SCL)
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Wire.setPins(PIN_BOARD_SDA, PIN_BOARD_SCL);
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#endif
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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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} |