Exception (3): epc1=0x4000bf64 epc2=0x00000000 epc3=0x00000000 excvaddr=0x402708cd depc=0x00000000

i_love_nature · December 6, 2022, 3:21am

Hi all,
I'm having problem with my esp8266.
Sketch

#if defined(ESP32)
#include <WiFi.h>
#elif defined(ESP8266)
#include <ESP8266WiFi.h>
#endif

#include <Firebase_ESP_Client.h>

// Provide the token generation process info.
#include <addons/TokenHelper.h>

/* 1. Define the WiFi credentials */
#define WIFI_SSID "XXXXX"
#define WIFI_PASSWORD "xxxxx"

/** 2. Define the Service Account credentials (required for token generation)
 *
 * This information can be taken from the service account JSON file.
 *
 * To download service account file, from the Firebase console, goto project settings,
 * select "Service accounts" tab and click at "Generate new private key" button
 */
#define FIREBASE_PROJECT_ID "app-xe-bus"
#define FIREBASE_CLIENT_EMAIL "firebase-adminsdk-8gsww@app-xe-bus.iam.gserviceaccount.com"
const char PRIVATE_KEY[] PROGMEM = "-----BEGIN PRIVATE KEY-----XXXXXXXX-----END PRIVATE KEY-----\n";

/* 3. Define the ID token for client or device to send the message */
#define DEVICE_REGISTRATION_ID_TOKEN "XXXXXXX"

//Define the user Email and password that alreadey registerd or added in your project */

/* 4. Define the Firebase Data object */
FirebaseData fbdo;

/* 5. Define the FirebaseAuth data for authentication data */
FirebaseAuth auth;

/* 6. Define the FirebaseConfig data for config data */
FirebaseConfig config;

unsigned long lastTime = 0;

int count = 0;

void sendMessage();

void setup()
{

    Serial.begin(115200);

    WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
    Serial.print("Connecting to Wi-Fi");
    while (WiFi.status() != WL_CONNECTED)
    {
        Serial.print(".");
        delay(300);
    }
    Serial.println();
    Serial.print("Connected with IP: ");
    Serial.println(WiFi.localIP());
    Serial.println();

    
    Serial.printf("Firebase Client v%s\n\n", FIREBASE_CLIENT_VERSION);
    /* Assign the user sign in credentials */

    /* Assign the sevice account credentials and private key (required) */
    config.service_account.data.client_email = FIREBASE_CLIENT_EMAIL;
    config.service_account.data.project_id = FIREBASE_PROJECT_ID;
    config.service_account.data.private_key = PRIVATE_KEY;
    /* Assign the callback function for the long running token generation task */
    config.token_status_callback = tokenStatusCallback; // see addons/TokenHelper.h

    Firebase.begin(&config, &auth);
    
    Firebase.reconnectWiFi(true);
}

void loop()
{

    // Firebase.ready() should be called repeatedly to handle authentication tasks.

    if (Firebase.ready() && (millis() - lastTime > 60 * 1000 || lastTime == 0))
    {
        lastTime = millis();

        sendMessage();
    }
}

void sendMessage()
{

    Serial.print("Send Firebase Cloud Messaging... ");

    // Read more details about HTTP v1 API here https://firebase.google.com/docs/reference/fcm/rest/v1/projects.messages
    FCM_HTTPv1_JSON_Message msg;

    msg.token = DEVICE_REGISTRATION_ID_TOKEN;

    msg.notification.body = "Notification body";
    msg.notification.title = "Notification title";

    // For the usage of FirebaseJson, see examples/FirebaseJson/BasicUsage/Create.ino
    FirebaseJson payload;

    // all data key-values should be string
    payload.add("temp", "28");
    payload.add("unit", "celsius");
    payload.add("timestamp", "1609815454");
    msg.data = payload.raw();

    if (Firebase.FCM.send(&fbdo, &msg)) // send message to recipient
        Serial.printf("ok\n%s\n\n", Firebase.FCM.payload(&fbdo).c_str());
    else
        Serial.println(fbdo.errorReason());

    count++;
}

Here is my error after being decoded:


Decoding stack results
0x40216dc4: HardwareSerial::write(unsigned char const*, unsigned int) at C:\Users\DellHMD\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266/HardwareSerial.h line 193
0x4020ded4: UtilsClass::calCRC(char const*) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/FB_Utils.h line 1460
0x40210b08: Firebase_Signer::authChanged(fb_esp_cfg_t*, fb_esp_auth_signin_provider_t*) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src\signer\Signer.cpp line 228
0x40204ae8: MB_String::clear() at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/json/MB_String.h line 1155
0x40206cc4: Firebase_ESP_Client::begin(fb_esp_cfg_t*, fb_esp_auth_signin_provider_t*) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/json/MB_String.h line 474
0x40204ac1: MB_String::allocate(unsigned int, bool) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/json/MB_String.h line 1693
0x40204b40: MB_String::copy(char const*, unsigned int) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/json/MB_String.h line 1719
0x40204ec9: setup() at C:\Users\DellHMD\Desktop\notification_sender/notification_sender.ino line 77
0x40218304: loop_wrapper() at C:\Users\DellHMD\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266\core_esp8266_main.cpp line 198

Can anyone help me please?

Thank you.

Coding_Badly · December 6, 2022, 7:01am

...has not been initialized. The examples I can find include this...

// Assign the user sign in credentials
auth.user.email = USER_EMAIL;
auth.user.password = USER_PASSWORD;

i_love_nature · December 6, 2022, 9:26am

Thank you for your reply. Even though I initialized FirebaseAuth auth, the problem is still there.

Coding_Badly · December 6, 2022, 9:11pm

With an exception the exact details are critical. I suggest posting the new stack dump just in case there are any differences.

i_love_nature · December 7, 2022, 2:52am

This is the exception after I initialized FirebaseAuth auth.

Decoding stack results
0x40216de4: HardwareSerial::write(unsigned char const*, unsigned int) at C:\Users\DellHMD\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266/HardwareSerial.h line 193
0x4020def4: UtilsClass::calCRC(char const*) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/FB_Utils.h line 1460
0x40210b28: Firebase_Signer::authChanged(fb_esp_cfg_t*, fb_esp_auth_signin_provider_t*) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src\signer\Signer.cpp line 228
0x40204ae8: MB_String::clear() at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/json/MB_String.h line 1155
0x40206ce4: Firebase_ESP_Client::begin(fb_esp_cfg_t*, fb_esp_auth_signin_provider_t*) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/json/MB_String.h line 474
0x40204ac1: MB_String::allocate(unsigned int, bool) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/json/MB_String.h line 1693
0x40204b40: MB_String::copy(char const*, unsigned int) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/json/MB_String.h line 1719
0x40204eeb: setup() at C:\Users\DellHMD\Desktop\notification_sender/notification_sender.ino line 80
0x40218324: loop_wrapper() at C:\Users\DellHMD\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266\core_esp8266_main.cpp line 198

Coding_Badly · December 7, 2022, 5:02am

The line numbers are off. This would be a good time to upgrade to the latest version of the Firebase library.

So I don't have to search for the repository again: https://github.com/mobizt/Firebase-ESP8266

i_love_nature · December 7, 2022, 9:23am

I upgraded the library to the latest version and this is the new error:

Decoding stack results
0x4020e20c: UtilsClass::calCRC(char const*) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/FB_Utils.h line 1461
0x40210fd4: Firebase_Signer::authChanged(fb_esp_cfg_t*, fb_esp_auth_signin_provider_t*) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src\signer\Signer.cpp line 237
0x40204ae8: MB_String::clear() at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/json/MB_String.h line 1213
0x40206d7c: Firebase_ESP_Client::begin(fb_esp_cfg_t*, fb_esp_auth_signin_provider_t*) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src\Firebase.cpp line 88
0x40100ae4: malloc(size_t) at C:\Users\DellHMD\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266\umm_malloc\umm_malloc.cpp line 821
0x40204ac1: MB_String::allocate(unsigned int, bool) at C:\Users\DellHMD\Documents\Arduino\libraries\Firebase_Arduino_Client_Library_for_ESP8266_and_ESP32\src/json/MB_String.h line 1751
0x40204eeb: setup() at C:\Users\DellHMD\Desktop\notification_sender/notification_sender.ino line 80
0x40218ba0: loop_wrapper() at C:\Users\DellHMD\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266\core_esp8266_main.cpp line 198

johnwasser · December 7, 2022, 2:03pm

So what does line 1461 do?

github.com

mobizt/Firebase-ESP-Client/blob/main/src/FB_Utils.h


/**
 *
 * Created September 5, 2023
 *
 * This work is a part of Firebase ESP Client library
 * Copyright (c) 2023 K. Suwatchai (Mobizt)
 *
 * The MIT License (MIT)
 * Copyright (c) 2023 K. Suwatchai (Mobizt)
 *
 *
 * Permission is hereby granted, free of charge, to any person returning a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all

This file has been truncated. show original

Looks like it's in: void replaceFirebasePath(MB_String &path)

\src\signer\Signer.cpp line 237
Strange. This file does not contain a function named "auth_changed()" and does not call "replaceFirebasePath()"

\src\Firebase.cpp line 88
There is no function call on line 88.
On line 86 there is a call to:
Signer.checkAuthTypeChanged(config, auth);
That function DOES exist in Signer.cpp and contains line 237.

Looks like your stack dump doesn't match the current sources.

Coding_Badly · December 7, 2022, 5:55pm

Using the Arduino IDE?

i_love_nature · December 8, 2022, 3:00am

Exactly. I upgraded the library directly using Arduino IDE

i_love_nature · December 8, 2022, 3:30pm

This is line 1461 from FB_Utils.h

image733×184 3.94 KB
This is line 237 from Signer.cpp

image1673×219 22.6 KB

etc...
You can check those lines in libraries of Firebase-ESP-Client

johnwasser · December 8, 2022, 4:27pm

In that case, my guess is that there is something wrong with the config "private_key" field.

const char PRIVATE_KEY[] PROGMEM = "-----BEGIN PRIVATE KEY-----XXXXXXXX-----END PRIVATE KEY-----\n";

    config.service_account.data.private_key = PRIVATE_KEY;

i_love_nature · December 9, 2022, 8:34am

I copied all the neccesary infomation from json file and pasted into the sketch. I got the json file from firebase -> Service accounts -> Generate new private key.

Coding_Badly · December 10, 2022, 12:26am

Did you convert all the newlines to \n?

system · June 8, 2023, 12:26am

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.

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Exception (3): epc1=0x4000bf64 epc2=0x00000000 epc3=0x00000000 excvaddr=0x402708cd depc=0x00000000

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