I have error when tried start example arduino esp8266

Using Arduino Networking, Protocols, and Devices
1

I tried connect android to esp8266 and write this code for esp from this site and this simple

#include <ESP8266WiFi.h>

const char* ssid = "espsid";
const char* password = "testpassword";
const int ledPin = 13;
WiFiServer server(1337);

void printWiFiStatus();

void setup(void) {
  Serial.println("Serial start");
  Serial.begin(115200);
  Serial.println("WiFi start");
  WiFi.begin(ssid, password);
  Serial.println("pinMode start");
  // Configure GPIO2 as OUTPUT.
  pinMode(ledPin, OUTPUT);
  Serial.println("server.begin");
  // Start TCP server.
  server.begin();
  Serial.println("server startded");
}

void loop(void) {
  // Check if module is still connected to WiFi.
  if (WiFi.status() != WL_CONNECTED) {
    while (WiFi.status() != WL_CONNECTED) {
      delay(500);
    }
    // Print the new IP to Serial.
    printWiFiStatus();
  }

  WiFiClient client = server.available();

  if (client) {
    Serial.println("Client connected.");

    while (client.connected()) {
      if (client.available()) {
        char command = client.read();
        if (command == 'H') {
          digitalWrite(ledPin, HIGH);
          Serial.println("LED is now on.");
        }
        else if (command == 'L') {
          digitalWrite(ledPin, LOW);
          Serial.println("LED is now off.");
        }
      }
    }
    Serial.println("Client disconnected.");
    client.stop();
  }
}

void printWiFiStatus() {
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
}

I have this exception and I do not understend what happened. This error not readible

ets Jan  8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1264, room 16 
tail 0
chksum 0x0f
csum 0x0f
~ld
WiFi start

Exception (3):
epc1=0x401003e9 epc2=0x00000000 epc3=0x00000000 excvaddr=0x400207b1 depc=0x00000000

ctx: cont 
sp: 3ffef810 end: 3ffefbe0 offset: 01a0

>>>stack>>>
3ffef9b0:  feefeffe feefeffe feefeffe feefeffe  
3ffef9c0:  feefeffe feefeffe feefeffe 3ffefb27  
3ffef9d0:  00000484 00000484 000003fd 401004f4  
3ffef9e0:  00000000 00001000 000003fd 40106dd4  
3ffef9f0:  40004b31 3ffefa20 0000001c 4021a805  
3ffefa00:  401054a2 4021a8ed 3fff0aec 000003ff  
3ffefa10:  000003fd 3ffefb27 3fff0aec 000003fd  
3ffefa20:  ffffff00 55aa55aa 00000012 0000001c  
3ffefa30:  0000001c 000000b0 000000b0 000003ff  
3ffefa40:  4021acdc 3fff0aec 3fff0aec 000000ff  
3ffefa50:  00000001 3ffefb47 4021ae37 00000008  
3ffefa60:  3fff0aec 000000ff 3ffefb27 00000000  
3ffefa70:  3fff0bac 3ffefb88 00000001 4021aec4  
3ffefa80:  3ffefb27 3fff0aec 00000000 00000004  
3ffefa90:  3ffefb47 3fff6e24 3fff0aec 00000000  
3ffefaa0:  4021af00 3ffe8480 3ffe8490 feefeffe  
3ffefab0:  402020da 3ffe8490 3ffe8480 40201ffb  
3ffefac0:  00000000 00000000 3ffeea88 401004d8  
3ffefad0:  feefeffe feefeffe 3fff0a94 40201a59  
3ffefae0:  00000000 00000001 feefeffe feefeffe  
3ffefaf0:  feefeffe feefeffe feefeffe 0001c200  
3ffefb00:  0000001c 00000000 3ffeea88 402023fc  
3ffefb10:  00000001 feefeffe feefeffe feefeffe  
3ffefb20:  ffffff00 65ffffff 69737073 feef0064  
3ffefb30:  feefeffe feefeffe feefeffe 0001c200  
3ffefb40:  0000001c 74000000 70747365 77737361  
3ffefb50:  0064726f 00000001 3ffe866d 402031b8  
3ffefb60:  00000000 00000009 3ffe8401 3ffeebac  
3ffefb70:  3fffdad0 0000000a 3ffeeb80 40202c39  
3ffefb80:  3ffe866c 00000000 3ffeeb80 40202c39  
3ffefb90:  3ffeea8c 00000000 00000001 40202c64  
3ffefba0:  feefeffe feefeffe 3ffeeb80 3ffeebac  
3ffefbb0:  3fffdad0 00000000 3ffeeb80 40201c8e  
3ffefbc0:  feefeffe feefeffe 3ffeeba4 40202f18  
3ffefbd0:  feefeffe feefeffe 3ffeebc0 40100718  
<<<stack<<<
whan means this stacktrace and exception?
2

Dude!

I've been dealing with a similar error and had basically given up. I had my unit working fine via arduino through a logic line level converter. But I issued a specific AT command and after that can't get anything but Exception (28) and all it does now is repeat that error over and over again.

I just tried a second unit and it was working fine I issued that same AT command and I looked over and it was SMOKING. One of the chips cracked open. And I don't think I had more than 3.3v going to it.

This stuff shouldn't be this hard. This unit seems really fragile and hard to configure. I'm going to post my wiring setup on the arduino stack overflow forum and see if I can find out what I did wrong.

-michael