device reboot

[xiaodingding]

lib: ESP32_BLE Backtrace: 0x40090c38:0x3ffd1dc0 0x40090e3b:0x3ffd1de0 0x4018315f:0x3ffd1e00 0x401831a6:0x3ffd1e20 0x40170bd3:0x3ffd1e40 0x400d4ebd:0x3ffd1e60 0x400d1a9d:0x3ffd1ec0 0x400d1b86:0x3ffd1f10 0x400d1d5f:0x3ffd1f70

device connect to ble server ,esp32 will reboot.

[chegewara]

Use this to decode backtrace: https://github.com/me-no-dev/EspExceptionDecoder

[mmt-10]

I found similar phenomenon with "The library source for the ESP32 BLE support for Arduino". But I cannot find root cause.

---

abort() was called at PC 0x401a8ccb on core 0

Backtrace: 0x40094ec8:0x3ffecb70 0x400950cb:0x3ffecb90 0x401a8ccb:0x3ffecbb0 0x401a8d12:0x3ffecbd0 0x40196827:0x3ffecbf0 0x40196a4e:0x3ffecc10 0x400d5a5b:0x3ffecc30 0x400d5da1:0x3ffecc60 0x400d501d:0x3ffecdb0 0x400e4d69:0x3ffece00 0x400e2956:0x3ffece20

Rebooting...

decoded backtrace is here.

/Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/panic.c:649 /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/panic.c:649 /builds/idf/crosstool-NG/.build/src/gcc-5.2.0/libstdc++-v3/libsupc++/eh_terminate.cc:112 /builds/idf/crosstool-NG/.build/src/gcc-5.2.0/libstdc++-v3/libsupc++/eh_terminate.cc:112 /builds/idf/crosstool-NG/.build/src/gcc-5.2.0/libstdc++-v3/libsupc++/eh_throw.cc:87 /builds/idf/crosstool-NG/.build/src/gcc-5.2.0/libstdc++-v3/libsupc++/new_op.cc:54 c:\users\foo\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-80-g6c4433a-5.2.0\xtensa-esp32-elf\include\c++\5.2.0\ext/new_allocator.h:104 c:\users\foo\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-80-g6c4433a-5.2.0\xtensa-esp32-elf\include\c++\5.2.0\bits/stl_vector.h:923 C:\Users\foo\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.0\libraries\BLE\src/BLEDevice.cpp:536 /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/bt/bluedroid/btc/profile/std/gap/btc_gap_ble.c:956 /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/bt/bluedroid/btc/core/btc_task.c:110

[chegewara]

Its hard to say. Could you paste logs before app crash?

[mmt-10]

I modify BLEscan sample. I guess below code may crush. BLEScanResults foundDevices = pBLEScan->start(scanTime);

I could see below output on serial monitor. Serial.printf("Advertised Device: %s \n", advertisedDevice.toString().c_str());

However, this code cannot output below message. Serial.println("\nScan done!");

code is here.

`#include

include

include

include

include

include

include

include

include

int scanTime = 1; double data_C_int; int data_D_int;

struct data_element { int data_A; int data_B; double data_C; int data_D; };

struct data_element data_table[256]; int data_max_value; const uint8_t cs_SD = 5;

void initial_data_table(){ for(int i = 0; i < 256; i++) { data_table[i].data_A = 0; data_table[i].data_B = 0; data_table[i].data_C = 0; data_table[i].data_D = 0; } data_C_int=0; data_D_int=0; data_max_value = 0; }

class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks { void onResult(BLEAdvertisedDevice advertisedDevice) {

      Serial.printf("Advertised Device: %s \n", advertisedDevice.toString().c_str());

} };

void setup() {

Serial.begin(115200);

Serial.flush(); Serial.write('\n');

SD.begin(cs_SD,SPI, 24000000, "/sd");

char ssid = "XXXXX"; char password = "XXXXX";

Serial.println("connect Wifi"); WiFi.mode(WIFI_STA); WiFi.begin(ssid,password);

delay(1000);

while(WiFi.status() == WL_CONNECTED){ WiFi.disconnect(); delay(2000); }

Serial.println("disconnected");

WiFi.mode(WIFI_OFF);

Serial.println("WiFi OFF");

delay(2000);

data_C_int=0; data_D_int=0;

}

void loop() { initial_data_table();

Serial.println("init"); BLEDevice::init("");

Serial.println("getScan"); BLEScan* pBLEScan = BLEDevice::getScan();

Serial.println("setAdvertisedDeviceCallbacks"); pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());

Serial.println("setActiveScan"); pBLEScan->setActiveScan(true);

Serial.println(esp_get_free_heap_size());

Serial.println("pBLEScan->start()"); BLEScanResults foundDevices = pBLEScan->start(scanTime);

Serial.println("\nScan done!");

} `

[chegewara]

Try to comment this line, i think its bug in esp-idf: WiFi.mode(WIFI_OFF);

[mmt-10]

My envionment changes to ESP-IDF. This phnomenon disappeared. https://github.com/espressif/arduino-esp32/blob/master/docs/esp-idf_component.md

[chegewara]

You have to remember that arduino-esp32 is few commits behind esp-idf master.