B4R Code Snippet [ESP32] WatchDog

peacemaker · Jul 31, 2023

Module name 'esp32wdt':

Private Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'Public variables can be accessed from all modules.
    Private timWDTfeeder As Timer
End Sub

Sub Start(timeout_millis As Int)
    Dim gap As Int = 50
    '---------hardware WDT-----------
    If timeout_millis < gap Then
        timeout_millis = timeout_millis + gap
    End If
    timWDTfeeder.Initialize("timWDTfeeder_Tick", (Min(500, (timeout_millis/2)))
    'timWDTfeeder.Enabled=True    'comment this line to test rebooting MCU !!!
    RunNative("setup", (timeout_millis/1000))
End Sub

Sub Stop
    RunNative("wdt_stop", Null)
    timWDTfeeder.Enabled = False
    Log("Watchdog is disalarmed")
End Sub

Private Sub timWDTfeeder_Tick
    RunNative("wdt_reset", Null)
    Log("Watchdog is fed up")
End Sub

#if c
#include <esp_task_wdt.h>

void setup(B4R::Object* o) {
  Serial.println("Configuring WDT...");  
  esp_reset_reason_t reason = esp_reset_reason();
    if ((reason == ESP_RST_INT_WDT)) Serial.println("Was restarted due to ESP_RST_INT_WDT");
    if ((reason == ESP_RST_TASK_WDT)) Serial.println("Was restarted due to ESP_RST_TASK_WDT");
    if ((reason == ESP_RST_WDT)) Serial.println("Was restarted due to ESP_RST_WDT"); 
  
  esp_task_wdt_init(o->toLong(), true); //enable panic so ESP32 restarts
  esp_task_wdt_add(NULL); //add current thread to WDT watch
}

void wdt_reset(B4R::Object* o) {
    //Serial.println("Resetting WDT...");
    esp_task_wdt_reset();
}

void wdt_stop(B4R::Object* o) {
    Serial.println("WDT is stopped");
    esp_task_wdt_delete(NULL);
    esp_task_wdt_deinit();
}
#End If

Result resetting loop:

mode:DIO, clock div:1
load:0x3fff0030,len:1344
load:0x40078000,len:13964
load:0x40080400,len:3600
entry 0x400805f0
AppStart
Configuring WDT...
E (6116) task_wdt: Task watchdog got triggered. The following tasks did not reset the watchdog in time:
E (6116) task_wdt:  - loopTask (CPU 1)
E (6116) task_wdt: Tasks currently running:
E (6116) task_wdt: CPU 0: IDLE
E (6116) task_wdt: CPU 1: loopTask
E (6116) task_wdt: Aborting.
abort() was called at PC 0x400d8d71 on core 0
Backtrace: 0x40083349:0x3ffbe9cc |<-CORRUPTED
ELF file SHA256: 6bc82a9473af7e00
Rebooting...
ets Jun  8 2016 00:22:57
rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:1344
load:0x40078000,len:13964
load:0x40080400,len:3600
entry 0x400805f0
AppStart
Configuring WDT...

peacemaker · Oct 8, 2024

Updated Inline-C in module 'esp32wdt.bas' for SDK 3.0.5:

Private Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'Public variables can be accessed from all modules.
    Private timWDTfeeder As Timer
End Sub

Sub Start(timeout_millis As UInt)
    Dim gap As Int = 50
    '---------hardware WDT-----------
    If timeout_millis < gap Then
        timeout_millis = timeout_millis + gap
    End If
    timWDTfeeder.Initialize("timWDTfeeder_Tick", (Min(500, (timeout_millis/2))))
    timWDTfeeder.Enabled=True    'comment this line to test rebooting MCU !!!
    RunNative("setup_wdt", (timeout_millis))
End Sub

Sub Stop
    RunNative("wdt_stop", Null)
    timWDTfeeder.Enabled = False
    Log("Watchdog is disalarmed")
End Sub

Private Sub timWDTfeeder_Tick
    RunNative("wdt_reset", Null)
    Log("Watchdog is fed up")
End Sub

#if c
#include <esp_task_wdt.h>
esp_err_t ESP32_ERROR;
void setup_wdt(B4R::Object* o) {
  Serial.println("Configuring WDT...");
  esp_reset_reason_t reason = esp_reset_reason();
    if ((reason == ESP_RST_INT_WDT)) Serial.println("Was restarted due to ESP_RST_INT_WDT");
    if ((reason == ESP_RST_TASK_WDT)) Serial.println("Was restarted due to ESP_RST_TASK_WDT");
    if ((reason == ESP_RST_WDT)) Serial.println("Was restarted due to ESP_RST_WDT");
 
    esp_task_wdt_deinit();
  // setup of watchdog
  esp_task_wdt_config_t wdt_config = {
    .timeout_ms = o->toLong(),  // millisecs
    .idle_core_mask = (1 << portNUM_PROCESSORS) - 1,  // bit mask of cores
    .trigger_panic = true  // panic to reboot ESP32
  };
  ESP32_ERROR = esp_task_wdt_init(&wdt_config);
  Serial.println("Last Reset : " + String(esp_err_to_name(ESP32_ERROR)));
  esp_task_wdt_add(NULL); //add current thread to WDT watch
}

void wdt_reset(B4R::Object* o) {
    //Serial.println("Resetting WDT...");
    esp_task_wdt_reset();
    delay(3);
}

void wdt_stop(B4R::Object* o) {
    Serial.println("WDT is stopped");
    esp_task_wdt_delete(NULL);
    esp_task_wdt_deinit();
}
#End If

B4R Code Snippet [ESP32] WatchDog

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B4R Code Snippet [ESP32] WatchDog

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