Hi,

The following function is not printing Wifi disconnected! when wifi connection is dropped (I am manually turning off the AP on my cell phone):

Wifi.on('disconnected', function(details){
  console.log("Wifi disconnected!", details);
  return sleep(2000, function(){
    return connectToWifi();
  });
});

What is wrong here?

No, the connection might be dropped... Can I detect a connection drop with a callback or something?

Edit:

We have another RTFM situation here: http://www.espruino.com/Reference#l_Wifi­_disconnected

Edit2

That event (Wifi.on('disconnected', ...)) is not working for me.

Hi,

I'm using net.connect to send and receive raw data to/from server. Client (esp8266) gets data, creates a response and sends to server. Then server asks another thing.

This works as intended till a point, then esp8266 gets a data from server (a stringified JSON), prepares response, then stucks. Here is the last status of clientSocket that is created via net.connect:

={ "type": 0, 
  "#onconnect": function (e) { ... }, 
  "opt": { 
    "host": "aktos.io", 
    "port": 1235 }, 
  "sckt": 54, "conn": true, 
  "dSnd": "{\"status\":{\"coinI" ... "cd1234\"},\"hb\":0}}", 
  "#ondata": function (n) { ... }, 
  "#onend": function () { ... }, 
  "dRcv": undefined }

the dSnd isnt empty. Is that the root of the problem? Should I flush it?

Can we manually handle resetting watchdog instead of Espruino's main loop?

I want to reset the watchdog manually in order to trigger some action that can only be performed upon boot process.

My application may response and give control to Espruino's main loop, but that is not sufficient for my purpose. Instead, it should be reset via a data from a socket connection.

The timings are OK, but you can't communicate with the device that is attached via I2C, right? Then you should check the circuit. Did you connect 4.7K pull-up resistors to both I2C lines?

I found SDK 1.5.0 and liblwip_536_for_ESP8266_NONOS_SDK_V1.5.0­.zip, downloaded them, extracted lwip_....zip and copied the liblwip_536.a file into [SDK-1.5.0]/lib folder. It seems everything went OK. Result binaries are here, FYI

FYI: I moved these builds to a new repo: https://github.com/aktos-io/aktos-esprui­no-builds

Well, I found the problem. I just forgot to rename new build folder after git pull. Now process.env.GIT_COMMIT="498b9d4cc0f1fc5e­0886c19a3b84ce64279aaf85" and everything works great.

The reason I build on my own is because both being able to do so, and keep up with your latest fixes :) Nothing related with a hack or something.

It's absolutely relevant with my build. How can I trace this issue? What am I doing wrong?

Ok, so there is no problem with this one.

Hi,

I see a v1.86 entry in the changelog but there is nothing listed in git tag | grep 86. Why is that? Where is v1.86?

Here you are:

>f = new (require("FlashEEPROM"))(0x076000);
={ 
  "flash": function () { [native code] }, 
  "addr": 483328, "endAddr": 487424 }
>f.read(1)
=undefined
>f.write(1, "hello")
WARNING: If specifying an object, it must be of the form {data : ..., count : N}
WARNING: If specifying an object, it must be of the form {data : ..., count : N}
Uncaught Error: Function "set" not found!
 at line 1 col 123
...int8Array(r.length+3&-4);a.set(r),r=a­}return r.length&&this....
                              ^
in function "_write" called from line 1 col 289
...ory!";this._write(r.end,t,e)}
                              ^
in function "write" called from line 1 col 19
f.write(1, "hello")
                  ^
>

As you might not see my edit in the previous post, the situation is the same with git checkout tags/RELEASE_1V85

Edit

Same with current git pull

A working code now outputs an error:

flushing to eeprom...
WARNING: If specifying an object, it must be of the form {data : ..., count : N}
WARNING: If specifying an object, it must be of the form {data : ..., count : N}
Uncaught Error: Function "set" not found!
 at line 1 col 123
...int8Array(r.length+3&-4);a.set(r),r=a­}return r.length&&this....
                              ^
in function "_write" called from line 1 col 289
...ory!";this._write(r.end,t,e)}
                              ^
in function "write" called from line 1 col 96
...f.write(this.fileNo,pack(t)),this.ram­=t
                              ^
in function "write" called from line 1 col 57
console.log("flushing to eeprom..."),this.write(this.ram)
                                                        ^
in function "flush" called from line 1 col 515
...atus: ",cfg.ram),cfg.flush()
                              ^
in function "logFileInit" called from line 1 col 13
logFileInit(),limitFilter(),setupIo(),sl­eep(1e3,function(){r...
            ^
in function called from system

I built Espruino by myself from commit 3d4047bf4fe5ab52f7b583257e41eae24a7fc947­.

EDIT

Situation is the same with git checkout tags/RELEASE_1V85

You mean this one and the lwip link points to here. I unzipped the archieve and moved liblwip_536.a to ${ESP8266_SDK_ROOT}/lib/. Now we progressed and new error is this:

cp: cannot stat ‘/home/ceremcem/embedded/esp-espressif-s­dk/ESP8266_NONOS_SDK_V1.5.3_16_04_18/ESP­8266_NONOS_SDK/bin/boot_v1.4(b1).bin’: No such file or directory

I simply created a symlink to bin/boot_v1.5.bin, so the result is:

./run-make 
Generating pin info
Generating platform configs
Generating JS wrappers
Generating pin info
WRAPPERSOURCES = src/jswrap_array.c src/jswrap_arraybuffer.c src/jswrap_date.c src/jswrap_error.c src/jswrap_espruino.c src/jswrap_flash.c src/jswrap_functions.c src/jswrap_interactive.c src/jswrap_io.c src/jswrap_json.c src/jswrap_modules.c src/jswrap_pin.c src/jswrap_number.c src/jswrap_object.c src/jswrap_onewire.c src/jswrap_pipe.c src/jswrap_process.c src/jswrap_promise.c src/jswrap_serial.c src/jswrap_spi_i2c.c src/jswrap_stream.c src/jswrap_string.c src/jswrap_waveform.c libs/math/jswrap_math.c libs/graphics/jswrap_graphics.c libs/network/jswrap_net.c libs/network/http/jswrap_http.c libs/network/js/jswrap_jsnetwork.c libs/network/esp8266/jswrap_esp8266_netw­ork.c targets/esp8266/jswrap_esp8266.c targets/esp8266/jswrap_nodemcu.c libs/network/telnet/jswrap_telnet.c libs/crypto/jswrap_crypto.c
DEFINES = -DGIT_COMMIT=3d4047bf4fe5ab52f7b583257e4­1eae24a7fc947 -DBUILDNUMBER="131" -DUSE_DEBUGGER -DUSE_TAB_COMPLETE -DUSE_HEATSHRINK -DUSE_MATH -DUSE_GRAPHICS -DUSE_NET -DUSE_ESP8266 -DUSE_TELNET -DUSE_CRYPTO -DUSE_OPTIMIZE_PRINTF -D__ETS__ -DICACHE_FLASH -DXTENSA -DUSE_US_TIMER -DEMBEDDED -DESP8266
CC src/jslex.o
CC src/jsvar.o
CC src/jsvariterator.o
CC src/jsutils.o
CC src/jsnative.o
CC src/jsparse.o
CC src/jspin.o
CC src/jsinteractive.o
CC src/jsdevices.o
CC src/jstimer.o
CC src/jsspi.o
CC gen/jswrapper.o
CC libs/compression/heatshrink/heatshrink_e­ncoder.o
CC libs/compression/heatshrink/heatshrink_d­ecoder.o
CC libs/compression/compress_heatshrink.o
CC libs/graphics/bitmap_font_4x6.o
CC libs/graphics/graphics.o
CC libs/graphics/lcd_arraybuffer.o
CC libs/graphics/lcd_js.o
CC libs/network/network.o
CC libs/network/socketserver.o
CC libs/network/socketerrors.o
CC libs/network/js/network_js.o
CC libs/network/esp8266/network_esp8266.o
CC libs/network/esp8266/pktbuf.o
CC libs/network/esp8266/ota.o
CC libs/crypto/mbedtls/library/sha1.o
CC libs/crypto/mbedtls/library/sha256.o
CC libs/crypto/mbedtls/library/sha512.o
CC /home/ceremcem/embedded/Espruino/gen/jsp­ininfo.o
CC src/jswrap_array.o
CC src/jswrap_arraybuffer.o
CC src/jswrap_date.o
CC src/jswrap_error.o
CC src/jswrap_espruino.o
CC src/jswrap_flash.o
CC src/jswrap_functions.o
CC src/jswrap_interactive.o
CC src/jswrap_io.o
CC src/jswrap_json.o
CC src/jswrap_modules.o
CC src/jswrap_pin.o
CC src/jswrap_number.o
CC src/jswrap_object.o
CC src/jswrap_onewire.o
CC src/jswrap_pipe.o
CC src/jswrap_process.o
CC src/jswrap_promise.o
CC src/jswrap_serial.o
CC src/jswrap_spi_i2c.o
CC src/jswrap_stream.o
CC src/jswrap_string.o
CC src/jswrap_waveform.o
CC libs/math/jswrap_math.o
CC libs/graphics/jswrap_graphics.o
CC libs/network/jswrap_net.o
CC libs/network/http/jswrap_http.o
CC libs/network/js/jswrap_jsnetwork.o
CC libs/network/esp8266/jswrap_esp8266_netw­ork.o
CC targets/esp8266/jswrap_esp8266.o
CC targets/esp8266/jswrap_nodemcu.o
CC libs/network/telnet/jswrap_telnet.o
CC libs/crypto/jswrap_crypto.o
CC targets/esp8266/uart.o
CC targets/esp8266/spi.o
CC targets/esp8266/user_main.o
CC targets/esp8266/log.o
CC targets/esp8266/jshardware.o
CC targets/esp8266/i2c_master.o
CC targets/esp8266/esp8266_board_utils.o
CC targets/esp8266/gdbstub.o
LD espruino_esp8266_partial.o
LD espruino_esp8266_user1.elf
LD espruino_esp8266_user2.elf
To disassemble: xtensa-lx106-elf-objdump -d -l -x espruino_esp8266_user2.elf
Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  3 .text         00006a70  40100000  40100000  00002f20  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  4 .irom0.text   0006b074  40201010  40201010  00009990  2**4
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
To disassemble: xtensa-lx106-elf-objdump -d -l -x espruino_esp8266_user1.elf
  4 -rwxr-xr-x 1 ceremcem ceremcem   2204 May 13 15:10 eagle.app.v6.data.bin
432 -rwxr-xr-x 1 ceremcem ceremcem 438388 May 13 15:10 eagle.app.v6.irom0text.bin
 12 -rwxr-xr-x 1 ceremcem ceremcem   9632 May 13 15:10 eagle.app.v6.rodata.bin
 28 -rwxr-xr-x 1 ceremcem ceremcem  27248 May 13 15:10 eagle.app.v6.text.bin
** user1.bin uses  477540 bytes of 491520 available

Well, I changed the export line to:

export ESP8266_SDK_ROOT="${R}/esp-espressif-sdk­/ESP8266_NONOS_SDK_V1.5.3_16_04_18/ESP82­66_NONOS_SDK"

and the problem went away. Now we have a new problem of lwip:

ldcannot : findcannot -llwip_536 find
 -llwip_536

Hi,

I'm trying to get the latest build of Espruino but I'm not able to build from source.

As README says, I built esp-open-sdk without errors. I also cloned espressif-sdk from https://github.com/espressif/ESP8266_RTO­S_SDK as stated here. As far as I could understand, there is no need to build espressif's SDK.

Then I used following script to call make:

#! /bin/bash
R=/home/ceremcem/embedded

export ESP8266_BOARD=1
[#export](http://forum.espruino.com/sear­ch/?q=%23export) FLASH_4MB=1
export ESP8266_SDK_ROOT=${R}/ESP8266_RTOS_SDK
export PATH=$PATH:${R}/esp-open-sdk/xtensa-lx10­6-elf/bin/
export COMPORT=/dev/ttyUSB0
make $*

No success:

$ ./run-make 
CC targets/esp8266/user_main.o
targets/esp8266/user_main.c:17:28: fatal error: user_interface.h: No such file or directory
 [#include](http://forum.espruino.com/sea­rch/?q=%23include) <user_interface.h>
                            ^
compilation terminated.
Makefile:1705: recipe for target 'targets/esp8266/user_main.o' failed
make: *** [targets/esp8266/user_main.o] Error 1

That sounds great! I could never think about that I would face with such a problem... Maybe we can replace original flash chip or add another one to the board on our next release.

OK, I've succeded with the following code:

connect-to-server = !->
    csock = null
    connect-to = (server) ->
        console.log "trying to connect to the server...", server
        csock := net.connect server, (socket) !->
            console.log "client connected. "
            socket.on \data, (data) !->
                do-something!
            socket.on \end, !->
                console.log "client disconnected..."

    connect-to first-server
    <- sleep 10_000ms
    if csock.sckt is void
        console.log "timed out, trying default server..."
        connect-to default-server
    else
        console.log "Connected to the first server correctly, not trying default..."

...Javascript:

var connectToServer;
connectToServer = function(){
  var csock, connectTo;
  csock = null;
  connectTo = function(server){
    console.log("trying to connect to the server...", server);
    return csock = net.connect(server, function(socket){
      console.log("client connected. ");
      socket.on('data', function(data){
        doSomething();
      });
      socket.on('end', function(){
        console.log("client disconnected...");
      });
    });
  };
  connectTo(firstServer);
  sleep(10000, function(){
    if (csock.sckt === void 8) {
      console.log("timed out, trying default server...");
      return connectTo(defaultServer);
    } else {
      return console.log("Connected to the first server correctly, not trying default...");
    }
  });
};

Hi,

I found this conversation but I didn't find my answer in the replies.

When I try to connect to a valid server, my application works as expected and exchanges data. If I try to connect to an invalid server, for example net.connect({host: "hello", port: 123}, function () {...., then it hangs while trying to connect.

How can I implement a timeout or something in order to fall back to a default server?

It turns out that I had corrupted FlashEEPROM's 0x076000+1024 area with so many writes. When I get the object with new require("FlashEEPROM")(0x077000), I can use this FlashEEPROM area.

Now I changed the app code to use RAM, and flush very very rarely to the FlashEEPROM.

Here is the output after 30 power cycles:

Loading 7981 bytes from flash...
Running onInit()...
299 { "free": 468, "usage": 932, "total": 1400, "history": 1 }
ERROR: Out of Memory!
WARNING: Truncating string as not enough memory
Execution Interrupted during event processing.
at line 1 col 127
...[0]]=this.flash.read(t,r+4)),r+=t+7&-­4,a=this.flash.read(4,r...
                              ^
in function "readAll" called from line 1 col 24
var t,e,r=this.readAll();this.flash.erasePag­e(this.addr),t=t...
                       ^
in function "cleanup" called from line 1 col 208
...dAddr&&(r.end=this.cleanup(),r.end+e.­length+4>=this.endAddr)...
                              ^
in function "write" called from line 1 col 96
...f.write(this.fileNo,pack(e)),sleep(3,­function(){return Confi...
                              ^
in function "write" called from line 1 col 83
...return inpCounter.write(++n),n}catch(o){return e=o,console.l...
                              ^
in function "incInput" called from line 1 col 22
console.log(incInput(),process.memory())­,sleep(5,function(){...
                     ^
in function "n" called from line 1 col 4
n(e)
   ^
in function called from system
ESSID:  aea
ESSID:  aktos-elektronik
ESSID:  Enopan
trying to connect to wifi... { 

The Out of memory error is thrown right after onInit() runs. How could it be possible?

Edit

Program is not starting at all afterwards. Giving the following error:

Loading 7981 bytes from flash...
Running onInit()...
ERROR: Out of Memory!
WARNING: Truncating string as not enough memory
Execution Interrupted during event processing.
at line 1 col 127
...[0]]=this.flash.read(t,r+4)),r+=t+7&-­4,a=this.flash.read(4,r...
                              ^
in function "readAll" called from line 1 col 24
var t,e,r=this.readAll();this.flash.erasePag­e(this.addr),t=t...
                       ^
in function "cleanup" called from line 1 col 208
...dAddr&&(r.end=this.cleanup(),r.end+e.­length+4>=this.endAddr)...
                              ^
in function "write" called from line 1 col 96
...f.write(this.fileNo,pack(e)),sleep(3,­function(){return Confi...
                              ^
in function "write" called from line 1 col 83
...return inpCounter.write(++n),n}catch(o){return e=o,console.l...
                              ^
in function "incInput" called from line 1 col 22
console.log(incInput(),process.memory())­,sleep(5,function(){...
                     ^
in function called from line 1 col 110
...return n(e)})}(function(){})
                              ^
in function "sim2" called from line 1 col 44
...mitFilter(),setupIo(),sim2(),sleep(1e­3,function(){return con...
                              ^
in function called from system
WARNING: Truncating string as not enough memory
Execution Interrupted during event processing.
at line 1 col 127
...[0]]=this.flash.read(t,r+4)),r+=t+7&-­4,a=this.flash.read(4,r...
                              ^
in function "readAll" called from line 1 col 24
var t,e,r=this.readAll();this.flash.erasePag­e(this.addr),t=t...
                       ^
in function "cleanup" called from line 1 col 208
...dAddr&&(r.end=this.cleanup(),r.end+e.­length+4>=this.endAddr)...
                              ^
in function "write" called from line 1 col 37
Config.f.write(this.raidFile,pack(e))
                                    ^
in function called from system

@DrAzzy After refactoring my classes (used prototypes instead), memory usage is decreased dramatically:

41 { "free": 579, "usage": 821, "total": 1400, "history": 3 }
42 { "free": 579, "usage": 821, "total": 1400, "history": 3 }
43 { "free": 579, "usage": 821, "total": 1400, "history": 3 }
44 { "free": 579, "usage": 821, "total": 1400, "history": 3 }
45 { "free": 579, "usage": 821, "total": 1400, "history": 3 }
46 { "free": 579, "usage": 821, "total": 1400, "history": 3 }
47 { "free": 579, "usage": 821, "total": 1400, "history": 3 }
48 { "free": 579, "usage": 821, "total": 1400, "history": 3 }
49 { "free": 579, "usage": 821, "total": 1400, "history": 

Edit

...but this didn't entirely help solving the problem. I cycled the power supply many times. Most of the time it read from FlashEEPROM as expected (correctly), but at 10th time or so, here is the result:

Loading 7991 bytes from flash...
Running onInit()...
WARNING: Expecting a number or something iterable, got undefined
WARNING: Expecting a number or something iterable, got undefined
Error on unpacking:  null
wire data:  
ERROR CONFIG READ:  Error on unpacking
raw data read:  
dump:  1
WARNING: Expecting a number or something iterable, got undefined
WARNING: Expecting a number or something iterable, got undefined
Error on unpacking:  null
wire data:  
ERROR CONFIG READ:  Error on unpacking
raw data read:  
dump:  2
WARNING: Expecting a number or something iterable, got undefined
WARNING: Expecting a number or something iterable, got undefined
Error on unpacking:  null
wire data:  
ERROR CONFIG READ:  Error on unpacking
raw data read:  
dump:  2
error reading input counter:  null
....

Well, I removed my variables (class instances) one by one, and available memory is increased to 836 bytes. Absolutely these classes are needed, but clearly they consume a lot of memory. Would this be my solution?

I reconnected the ESP8266 in order to add process.memory() in the loop and saw that it had been working for hours (11.25597 hours for now). I added process.memory() anyway:

810428 { "free": 122, "usage": 1278, "total": 1400, "history": 1 }
810429 { "free": 122, "usage": 1278, "total": 1400, "history": 1 }
810430 { "free": 122, "usage": 1278, "total": 1400, "history": 1 }
810431 { "free": 122, "usage": 1278, "total": 1400, "history": 1 }
810432 { "free": 122, "usage": 1278, "total": 1400, "history": 1 }
810433 { "free": 122, "usage": 1278, "total": 1400, "history": 1 }
810434 { "free": 122, "usage": 1278, "total": 1400, "history": 1 }
810435 { "free": 122, "usage": 1278, "total": 1400, "history": 1 }
810436 { "free": 122, "usage": 1278, "total": 1400, "history": 1 }
810437 { "free": 122, "usage": 1278, "total": 1400, "history": 1 }

Are you sure about that? Is it all because of this "recursive function"s memory consumption?

sleep function is just a renamed setTimeout function:

var sleep;
sleep = function(ms, f){
  return setTimeout(f, ms);
};