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I think that this must be an inconsistency in Espruino

a = "1"
="1"
a++
="1"
a++
="11"
a++
="111"
a = "s"
="s"
a++
="s"
a++
="s1"
a++
="s11"
a++
="s111"

I would have expected (and comfirmed using javascript console in chrome) that if the string were a number it would return 1 , 2, 3 otherwise it would return NaN rather than concatenate 1 on the end.

Is this a bug?

I have tried the DS18B20 example code which since the setInterval fix (1v59) has worked faultlessly:-

var ow = new OneWire(A1);
var sensor = require("DS18B20").connect(ow);
setInterval(function() {
  console.log(sensor.getTemp());
}, 1000);

However it now breaks after a couple of minutes with the following:-

ERROR: Out of Memory!
ERROR: Out of Memory!
WARNING: Out of memory while appending to array
ERROR: Out of Memory!
at line 1 col 188
{var a=[];this.bus.reset();this.bus.select(this.sCode);b&&(this.bus.write(68,!0),this.bus.reset(),this.bus.select(this.sCode));this.bus.write(190);for(b=0;9>b;b++)a.push(this.bus.read());return a}
                                                                                                                                                                                            ^
in function "_readSpad" called from line 1 col 78
in function "getTemp" called from line 2 col 30
undefined
in function called from system
ERROR: Error processing interval - removing it.
Execution Interrupted during event processing.

Problem solved. I had first compiled espruino to run on Linux.
I then tried to compile for the espruino hardware. I have found that I need to give make the -B switch to recompile everything and then it works. I now get -

GEN espruino_1v60_espruino_1r3.bin
bash scripts/check_size.sh espruino_1v60_espruino_1r3.bin
FAIL - size of 225996 is over 215040 bytes
make: *** [espruino_1v60_espruino_1r3.bin] Error 1

I guess I need to change some configuration files. I assumed espruino would have been the default.

Also is it possible to program the espruino from the web IDE using a .bin file from the local file system?

I am trying to compile the espruino source. Everything works fine under linux.
However when I compile for the espruino board I get the following messages and compilation fails. I am using the latest version of codebench arm-2013.11-24-arm-none-eabi.
Any ideas where I am going wrong?

arthur@SZ71:~/Espruino$ ESPRUINO_1V3=1 make
CC libs/fat_sd/spi_diskio.o
CC libs/math/atanh.o
CC libs/math/cbrt.o
libs/math/cbrt.c:46:1: warning: 'static' is not at beginning of declaration [-Wold-style-declaration]
 const static double CBRT2  = 1.2599210498948731647672;
 ^
libs/math/cbrt.c:47:1: warning: 'static' is not at beginning of declaration [-Wold-style-declaration]
 const static double CBRT4  = 1.5874010519681994747517;
 ^
libs/math/cbrt.c:48:1: warning: 'static' is not at beginning of declaration [-Wold-style-declaration]
 const static double CBRT2I = 0.79370052598409973737585;
 ^
libs/math/cbrt.c:49:1: warning: 'static' is not at beginning of declaration [-Wold-style-declaration]
 const static double CBRT4I = 0.62996052494743658238361;
 ^
libs/math/atanh.c:46:1: warning: 'static' is not at beginning of declaration [-Wold-style-declaration]
 const static double P[] = {
 ^
In file included from libs/fat_sd/spi_diskio.c:38:0:
/home/arthur/Espruino/src/jshardware.h:253:38: error: unknown type name 'uint16_t'
 void jshSPIPush(IOEventFlags device, uint16_t data);
                                      ^
libs/fat_sd/spi_diskio.c: In function 'stm32_spi_rw':
libs/math/atanh.c:53:1: warning: 'static' is not at beginning of declaration [-Wold-style-declaration]
 const static double Q[] = {
 ^
libs/math/atanh.c: In function 'atanh':
libs/fat_sd/spi_diskio.c:100:24: error: 'SD_SPI' undeclared (first use in this function)
     int b = jshSPISend(SD_SPI, (unsigned char)out);
                        ^
libs/fat_sd/spi_diskio.c:100:24: note: each undeclared identifier is reported only once for each function it appears in
libs/fat_sd/spi_diskio.c: In function 'release_spi':
libs/fat_sd/spi_diskio.c:70:38: error: 'SD_CS_PIN' undeclared (first use in this function)
 [#define](https://forum.espruino.com/search/?q=%23define) DESELECT()      jshPinOutput(SD_CS_PIN, 1)      /* MMC CS = H */
                                      ^
libs/fat_sd/spi_diskio.c:154:2: note: in expansion of macro 'DESELECT'
  DESELECT();
  ^
libs/fat_sd/spi_diskio.c: In function 'power_on':
libs/fat_sd/spi_diskio.c:70:38: error: 'SD_CS_PIN' undeclared (first use in this function)
 [#define](https://forum.espruino.com/search/?q=%23define) DESELECT()      jshPinOutput(SD_CS_PIN, 1)      /* MMC CS = H */
                                      ^
libs/fat_sd/spi_diskio.c:168:2: note: in expansion of macro 'DESELECT'
  DESELECT();
  ^
libs/math/atanh.c:151:2: warning: passing argument 2 of 'polevl' discards 'const' qualifier from pointer target type [enabled by default]
  s = x   +  x * z * (polevl(z, P, 4) / p1evl(z, Q, 5));
  ^
libs/math/atanh.c:118:15: note: expected 'void *' but argument is of type 'const double *'
 extern double polevl ( double x, void *P, int N );
               ^
libs/math/atanh.c:151:2: warning: passing argument 2 of 'p1evl' discards 'const' qualifier from pointer target type [enabled by default]
  s = x   +  x * z * (polevl(z, P, 4) / p1evl(z, Q, 5));
  ^
libs/math/atanh.c:119:15: note: expected 'void *' but argument is of type 'const double *'
 extern double p1evl ( double x, void *P, int N );
               ^
libs/fat_sd/spi_diskio.c:173:16: error: 'SD_DO_PIN' undeclared (first use in this function)
  inf.pinMISO = SD_DO_PIN;
                ^
libs/fat_sd/spi_diskio.c:174:16: error: 'SD_DI_PIN' undeclared (first use in this function)
  inf.pinMOSI = SD_DI_PIN;
                ^
libs/fat_sd/spi_diskio.c:175:15: error: 'SD_CLK_PIN' undeclared (first use in this function)
  inf.pinSCK = SD_CLK_PIN;
               ^
libs/fat_sd/spi_diskio.c:177:14: error: 'SD_SPI' undeclared (first use in this function)
  jshSPISetup(SD_SPI, &inf);
              ^
libs/fat_sd/spi_diskio.c: In function 'power_off':
libs/fat_sd/spi_diskio.c:69:38: error: 'SD_CS_PIN' undeclared (first use in this function)
 [#define](https://forum.espruino.com/search/?q=%23define) SELECT()        jshPinOutput(SD_CS_PIN, 0)    /* MMC CS = L */
                                      ^
libs/fat_sd/spi_diskio.c:184:3: note: in expansion of macro 'SELECT'
   SELECT();
   ^
libs/fat_sd/spi_diskio.c:192:14: error: 'SD_DO_PIN' undeclared (first use in this function)
  jshPinInput(SD_DO_PIN);
              ^
libs/fat_sd/spi_diskio.c:193:14: error: 'SD_DI_PIN' undeclared (first use in this function)
  jshPinInput(SD_DI_PIN);
              ^
libs/fat_sd/spi_diskio.c:194:14: error: 'SD_CLK_PIN' undeclared (first use in this function)
  jshPinInput(SD_CLK_PIN);
              ^
libs/fat_sd/spi_diskio.c: In function 'send_cmd':
libs/fat_sd/spi_diskio.c:70:38: error: 'SD_CS_PIN' undeclared (first use in this function)
 [#define](https://forum.espruino.com/search/?q=%23define) DESELECT()      jshPinOutput(SD_CS_PIN, 1)      /* MMC CS = H */
                                      ^
libs/fat_sd/spi_diskio.c:292:2: note: in expansion of macro 'DESELECT'
  DESELECT();
  ^
libs/fat_sd/spi_diskio.c: In function 'disk_initialize':
libs/fat_sd/spi_diskio.c:373:8: warning: conversion to 'DSTATUS' from 'int' may alter its value [-Wconversion]
   Stat &= ~STA_NOINIT;  /* Clear STA_NOINIT */
        ^
libs/fat_sd/spi_diskio.c: In function 'disk_ioctl':
libs/fat_sd/spi_diskio.c:69:38: error: 'SD_CS_PIN' undeclared (first use in this function)
 [#define](https://forum.espruino.com/search/?q=%23define) SELECT()        jshPinOutput(SD_CS_PIN, 0)    /* MMC CS = L */
                                      ^
libs/fat_sd/spi_diskio.c:526:4: note: in expansion of macro 'SELECT'
    SELECT();
    ^
libs/fat_sd/spi_diskio.c:534:43: warning: conversion to 'WORD' from 'int' may alter its value [-Wconversion]
      csize = csd[9] + ((WORD)csd[8] << 8) + 1;
                                           ^
libs/fat_sd/spi_diskio.c:537:71: warning: conversion to 'BYTE' from 'int' may alter its value [-Wconversion]
      n = (csd[5] & 15) + ((csd[10] & 128) >> 7) + ((csd[9] & 3) << 1) + 2;
                                                                       ^
libs/fat_sd/spi_diskio.c:538:79: warning: conversion to 'WORD' from 'int' may alter its value [-Wconversion]
      csize = (csd[8] >> 6) + ((WORD)csd[7] << 2) + ((WORD)(csd[6] & 3) << 10) + 1;
                                                                               ^
libs/fat_sd/spi_diskio.c:563:82: warning: conversion to 'DWORD' from 'int' may change the sign of the result [-Wsign-conversion]
       *(DWORD*)buff = (((csd[10] & 63) << 1) + ((WORD)(csd[11] & 128) >> 7) + 1) << ((csd[13] >> 6) - 1);
                                                                                  ^
libs/fat_sd/spi_diskio.c:565:58: warning: conversion to 'DWORD' from 'int' may change the sign of the result [-Wsign-conversion]
       *(DWORD*)buff = ((WORD)((csd[10] & 124) >> 2) + 1) * (((csd[11] & 3) << 3) + ((csd[11] & 224) >> 5) + 1);
                                                          ^
make: *** [libs/fat_sd/spi_diskio.o] Error 1
make: *** Waiting for unfinished jobs....

I have been running 1v59 commit_date/2014-03-25 13:14:38 for over 15 hours now and it is still working OK!

getTime() does not return the correct result. It is incrementing far too fast, about 2500 per second. By the way, do you understand why it returns a value to 14 decimal places?

I am having a lot of problems with setInterval. Even using the simple tutorial example of flashing a LED. If left unattended it works for perhaps two hours and then breaks with the LED constantly on. I have also tried it using digitalWrite to a pin and when it goes wrong the pin is being pulsed at a much higher rate than was set. Further calls to changeInterval have no effect, a reset is required. I have tried this on the two Espruino boards I have with the same results. I am observing this using firmware 1v58. Is this linked to the problems currently being seen for setTimeout and getTime? Any ideas?

Arthur