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93 lines
2.8 KiB
93 lines
2.8 KiB
#include <Arduino.h>
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#include <Wire.h>
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#include "nrf_gpio.h"
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#include "RAK4631Board.h"
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#ifdef ETHERNET_ENABLED
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// Drive WB_IO2 HIGH as early as possible using direct register access.
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// WB_IO2 (P1.02, Arduino pin 34) controls the WisBlock slot power switch.
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// With POE through RAK13800, this must be enabled before the framework
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// initializes or the board will brownout from insufficient power delivery.
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// Priority 102 runs just after SystemInit.
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static void __attribute__((constructor(102))) rak4631_early_poe_power() {
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nrf_gpio_cfg_output(NRF_GPIO_PIN_MAP(1, 2)); // WB_IO2 = P1.02
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nrf_gpio_pin_set(NRF_GPIO_PIN_MAP(1, 2));
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}
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#endif
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#ifdef WITH_W5100S_POE
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#include "W5100SPoE.h"
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#endif
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#ifdef NRF52_POWER_MANAGEMENT
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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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// WITH_W5100S_POE = PoE operation without a battery.
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// isExternalPowered() only detects USB VBUS, not PoE power.
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// Without this exception checkBootVoltage() reads the floating
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// battery ADC pin (no battery) and triggers the protection
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// shutdown -> SYSTEMOFF loop -> red LED flicker.
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#ifdef WITH_W5100S_POE
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.voltage_bootlock = 0
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#else
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.voltage_bootlock = PWRMGT_VOLTAGE_BOOTLOCK
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#endif
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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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#ifdef WITH_W5100S_POE
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uint8_t w5100s_ver = w5100s_poe_init();
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(void)w5100s_ver;
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#ifdef MESH_DEBUG
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// Wait for USB-CDC to re-enumerate so this line isn't eaten during the
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// reconnect, then print it repeatedly to be sure it is seen. Debug only —
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// the PoE production build skips this and boots fast.
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delay(3000);
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for (int i = 0; i < 5; i++) {
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MESH_DEBUG_PRINTLN(">>> W5100S VERSIONR = 0x%02X (expect 0x51) <<<", w5100s_ver);
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delay(200);
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}
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#endif
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#endif
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}
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