diff --git a/examples/companion_radio/main.cpp b/examples/companion_radio/main.cpp index ef9b6bfc..76d05b85 100644 --- a/examples/companion_radio/main.cpp +++ b/examples/companion_radio/main.cpp @@ -116,6 +116,10 @@ void setup() { board.begin(); +#ifdef HAS_EXTERNAL_WATCHDOG + external_watchdog.begin(); +#endif + #ifdef DISPLAY_CLASS DisplayDriver* disp = NULL; if (display.begin()) { @@ -249,7 +253,10 @@ void loop() { ui_task.loop(); #endif rtc_clock.tick(); - +#ifdef HAS_EXTERNAL_WATCHDOG + external_watchdog.loop(); +#endif + if (!the_mesh.hasPendingWork()) { #if defined(NRF52_PLATFORM) board.sleep(0); // nrf ignores seconds param, sleeps whenever possible diff --git a/examples/simple_repeater/main.cpp b/examples/simple_repeater/main.cpp index 2ce056f5..7532eb47 100644 --- a/examples/simple_repeater/main.cpp +++ b/examples/simple_repeater/main.cpp @@ -33,6 +33,10 @@ void setup() { board.begin(); +#ifdef HAS_EXTERNAL_WATCHDOG + external_watchdog.begin(); +#endif + #if defined(MESH_DEBUG) && defined(NRF52_PLATFORM) // give some extra time for serial to settle so // boot debug messages can be seen on terminal @@ -152,7 +156,13 @@ void loop() { #endif rtc_clock.tick(); +#ifdef HAS_EXTERNAL_WATCHDOG + external_watchdog.loop(); +#endif if (the_mesh.getNodePrefs()->powersaving_enabled && !the_mesh.hasPendingWork()) { +#ifdef HAS_EXTERNAL_WATCHDOG + external_watchdog.feed(); +#endif #if defined(NRF52_PLATFORM) board.sleep(0); // nrf ignores seconds param, sleeps whenever possible #else diff --git a/examples/simple_room_server/main.cpp b/examples/simple_room_server/main.cpp index a3798b21..579eb63f 100644 --- a/examples/simple_room_server/main.cpp +++ b/examples/simple_room_server/main.cpp @@ -24,6 +24,10 @@ void setup() { board.begin(); +#ifdef HAS_EXTERNAL_WATCHDOG + external_watchdog.begin(); +#endif + #ifdef DISPLAY_CLASS if (display.begin()) { display.startFrame(); @@ -115,4 +119,7 @@ void loop() { ui_task.loop(); #endif rtc_clock.tick(); +#ifdef HAS_EXTERNAL_WATCHDOG + external_watchdog.loop(); +#endif } diff --git a/examples/simple_secure_chat/main.cpp b/examples/simple_secure_chat/main.cpp index d93810ed..da42ddcb 100644 --- a/examples/simple_secure_chat/main.cpp +++ b/examples/simple_secure_chat/main.cpp @@ -560,6 +560,10 @@ void setup() { board.begin(); +#ifdef HAS_EXTERNAL_WATCHDOG + external_watchdog.begin(); +#endif + if (!radio_init()) { halt(); } fast_rng.begin(radio_driver.getRngSeed()); @@ -591,4 +595,7 @@ void setup() { void loop() { the_mesh.loop(); rtc_clock.tick(); +#ifdef HAS_EXTERNAL_WATCHDOG + external_watchdog.loop(); +#endif } diff --git a/examples/simple_sensor/main.cpp b/examples/simple_sensor/main.cpp index cace67a0..69182f3a 100644 --- a/examples/simple_sensor/main.cpp +++ b/examples/simple_sensor/main.cpp @@ -58,6 +58,10 @@ void setup() { board.begin(); +#ifdef HAS_EXTERNAL_WATCHDOG + external_watchdog.begin(); +#endif + #ifdef DISPLAY_CLASS if (display.begin()) { display.startFrame(); @@ -147,4 +151,7 @@ void loop() { ui_task.loop(); #endif rtc_clock.tick(); +#ifdef HAS_EXTERNAL_WATCHDOG + external_watchdog.loop(); +#endif } diff --git a/src/helpers/ExternalWatchdogManager.h b/src/helpers/ExternalWatchdogManager.h new file mode 100644 index 00000000..cb4f4923 --- /dev/null +++ b/src/helpers/ExternalWatchdogManager.h @@ -0,0 +1,12 @@ +#pragma once + +class ExternalWatchdogManager { +protected: + unsigned long last_feed_watchdog; +public: + ExternalWatchdogManager() { last_feed_watchdog = 0; } + virtual bool begin() { return false; } + virtual void loop() { } + virtual unsigned long getIntervalMs() const { return 0; } + virtual void feed() { } +}; diff --git a/variants/heltec_mesh_solar/platformio.ini b/variants/heltec_mesh_solar/platformio.ini index bd042322..fb5cd515 100644 --- a/variants/heltec_mesh_solar/platformio.ini +++ b/variants/heltec_mesh_solar/platformio.ini @@ -13,6 +13,11 @@ build_flags = ${nrf52_base.build_flags} -D LORA_TX_POWER=22 -D SX126X_CURRENT_LIMIT=140 -D SX126X_RX_BOOSTED_GAIN=1 + -D HAS_EXTERNAL_WATCHDOG + -D EXTERNAL_WATCHDOG_DONE_PIN=9 + -D EXTERNAL_WATCHDOG_WAKE_PIN=10 + -D EXTERNAL_WATCHDOG_FEED_INTERVAL_MS=480000 ; 8 minute feed interval, safely inside the hardware watchdog timeout + build_src_filter = ${nrf52_base.build_src_filter} + +<../variants/heltec_mesh_solar> diff --git a/variants/heltec_mesh_solar/target.cpp b/variants/heltec_mesh_solar/target.cpp index d140864c..94e2684c 100644 --- a/variants/heltec_mesh_solar/target.cpp +++ b/variants/heltec_mesh_solar/target.cpp @@ -13,6 +13,7 @@ VolatileRTCClock fallback_clock; AutoDiscoverRTCClock rtc_clock(fallback_clock); MicroNMEALocationProvider nmea = MicroNMEALocationProvider(Serial1, &rtc_clock); SolarSensorManager sensors = SolarSensorManager(nmea); +SolarExternalWatchdog external_watchdog; #ifdef DISPLAY_CLASS DISPLAY_CLASS display; @@ -106,3 +107,34 @@ bool SolarSensorManager::setSettingValue(const char* name, const char* value) { } return false; // not supported } + +bool SolarExternalWatchdog::begin() { + last_feed_watchdog = 0; + pinMode(EXTERNAL_WATCHDOG_WAKE_PIN, INPUT); + pinMode(EXTERNAL_WATCHDOG_DONE_PIN, OUTPUT); + delay(1); + digitalWrite(EXTERNAL_WATCHDOG_DONE_PIN, LOW); + delay(1); + feed(); + return true; +} +void SolarExternalWatchdog::loop() { + if (millis() - last_feed_watchdog >= EXTERNAL_WATCHDOG_FEED_INTERVAL_MS) { + feed(); + } +} + +unsigned long SolarExternalWatchdog::getIntervalMs() const { + unsigned long elapsed_ms = millis() - last_feed_watchdog; + if (elapsed_ms >= EXTERNAL_WATCHDOG_FEED_INTERVAL_MS) { + return 0; + } + return EXTERNAL_WATCHDOG_FEED_INTERVAL_MS - elapsed_ms; +} + +void SolarExternalWatchdog::feed() { + digitalWrite(EXTERNAL_WATCHDOG_DONE_PIN, HIGH); + delay(1); + digitalWrite(EXTERNAL_WATCHDOG_DONE_PIN, LOW); + last_feed_watchdog = millis(); +} diff --git a/variants/heltec_mesh_solar/target.h b/variants/heltec_mesh_solar/target.h index 1956f50e..8e13a960 100644 --- a/variants/heltec_mesh_solar/target.h +++ b/variants/heltec_mesh_solar/target.h @@ -8,6 +8,7 @@ #include #include #include +#include #ifdef DISPLAY_CLASS #include #endif @@ -30,10 +31,20 @@ public: bool setSettingValue(const char* name, const char* value) override; }; +class SolarExternalWatchdog : public ExternalWatchdogManager { +public: + SolarExternalWatchdog() {} + bool begin() override; + void loop() override; + unsigned long getIntervalMs() const override; + void feed() override; +}; + extern MeshSolarBoard board; extern WRAPPER_CLASS radio_driver; extern AutoDiscoverRTCClock rtc_clock; extern SolarSensorManager sensors; +extern SolarExternalWatchdog external_watchdog; #ifdef DISPLAY_CLASS extern DISPLAY_CLASS display; diff --git a/variants/heltec_mesh_solar/variant.h b/variants/heltec_mesh_solar/variant.h index 14956619..3c1b378d 100644 --- a/variants/heltec_mesh_solar/variant.h +++ b/variants/heltec_mesh_solar/variant.h @@ -34,8 +34,8 @@ #define PIN_SERIAL1_RX (37) #define PIN_SERIAL1_TX (39) -#define PIN_SERIAL2_RX (9) -#define PIN_SERIAL2_TX (10) +#define PIN_SERIAL2_RX (-1) +#define PIN_SERIAL2_TX (-1) //////////////////////////////////////////////////////////////////////////////// // I2C pin definition diff --git a/variants/heltec_tower_v2/target.cpp b/variants/heltec_tower_v2/target.cpp index ad457354..ec8e7a17 100644 --- a/variants/heltec_tower_v2/target.cpp +++ b/variants/heltec_tower_v2/target.cpp @@ -14,6 +14,7 @@ VolatileRTCClock fallback_clock; AutoDiscoverRTCClock rtc_clock(fallback_clock); MicroNMEALocationProvider nmea = MicroNMEALocationProvider(Serial1, &rtc_clock); EnvironmentSensorManager sensors = EnvironmentSensorManager(nmea); +TowerV2ExternalWatchdog external_watchdog; #ifdef DISPLAY_CLASS DISPLAY_CLASS display; @@ -29,3 +30,35 @@ mesh::LocalIdentity radio_new_identity() { RadioNoiseListener rng(radio); return mesh::LocalIdentity(&rng); } + +bool TowerV2ExternalWatchdog::begin() { + last_feed_watchdog = 0; + pinMode(EXTERNAL_WATCHDOG_WAKE_PIN, INPUT); + pinMode(EXTERNAL_WATCHDOG_DONE_PIN, OUTPUT); + delay(1); + digitalWrite(EXTERNAL_WATCHDOG_DONE_PIN, LOW); + delay(1); + feed(); + return true; +} + +void TowerV2ExternalWatchdog::loop() { + if (millis() - last_feed_watchdog >= EXTERNAL_WATCHDOG_FEED_INTERVAL_MS) { + feed(); + } +} + +unsigned long TowerV2ExternalWatchdog::getIntervalMs() const { + unsigned long elapsed_ms = millis() - last_feed_watchdog; + if (elapsed_ms >= EXTERNAL_WATCHDOG_FEED_INTERVAL_MS) { + return 0; + } + return EXTERNAL_WATCHDOG_FEED_INTERVAL_MS - elapsed_ms; +} + +void TowerV2ExternalWatchdog::feed() { + digitalWrite(EXTERNAL_WATCHDOG_DONE_PIN, HIGH); + delay(1); + digitalWrite(EXTERNAL_WATCHDOG_DONE_PIN, LOW); + last_feed_watchdog = millis(); +} diff --git a/variants/heltec_tower_v2/target.h b/variants/heltec_tower_v2/target.h index 03719246..0b9de40c 100644 --- a/variants/heltec_tower_v2/target.h +++ b/variants/heltec_tower_v2/target.h @@ -8,16 +8,27 @@ #include #include #include +#include #ifdef DISPLAY_CLASS #include #include "helpers/ui/NullDisplayDriver.h" #endif +class TowerV2ExternalWatchdog : public ExternalWatchdogManager { +public: + TowerV2ExternalWatchdog() {} + bool begin() override; + void loop() override; + unsigned long getIntervalMs() const override; + void feed() override; +}; + extern HeltecTowerV2Board board; extern WRAPPER_CLASS radio_driver; extern AutoDiscoverRTCClock rtc_clock; extern EnvironmentSensorManager sensors; +extern TowerV2ExternalWatchdog external_watchdog; #ifdef DISPLAY_CLASS extern DISPLAY_CLASS display; diff --git a/variants/heltec_tower_v2/variant.h b/variants/heltec_tower_v2/variant.h index 352184b8..14116c6f 100644 --- a/variants/heltec_tower_v2/variant.h +++ b/variants/heltec_tower_v2/variant.h @@ -82,10 +82,10 @@ #define PIN_SERIAL2_RX (-1) #define PIN_SERIAL2_TX (-1) -#define HAS_HARDWARE_WATCHDOG -#define HARDWARE_WATCHDOG_DONE (0 + 9) -#define HARDWARE_WATCHDOG_WAKE (0 + 10) -#define HARDWARE_WATCHDOG_TIMEOUT_MS (8 * 60 * 1000) +#define HAS_EXTERNAL_WATCHDOG +#define EXTERNAL_WATCHDOG_DONE_PIN (0 + 9) +#define EXTERNAL_WATCHDOG_WAKE_PIN (0 + 10) +#define EXTERNAL_WATCHDOG_FEED_INTERVAL_MS (8 * 60 * 1000) #define SERIAL_PRINT_PORT 0