DaveNI

Most recent activity

• ILI9341 Performance Improvements

  @DaveNI started

  • 39 comments
  • 13,494 views

  @allObjects replied
• Writing modular code using "require"

  @DaveNI started

  • 18 comments
  • 7,746 views

  @Gordon replied
• Memory Management

  @DaveNI started

  • 15 comments
  • 5,767 views

  @Gordon replied
• Random code corruption/errors

  @DaveNI started

  • 9 comments
  • 5,154 views

  @Gordon replied
• Random code corruption/errors

  in General • 10 years

  

  I've a 2nd wiznet so as a start I will swap them tonight, I'll also remove the solid state relay unit (which was switching a 240v 40w bulb but is not connected to the power supply at present). I've got a display without touch so could also swap that in.

  One odd observation - I added some extra code last night to try and move the offending function into a different memory location but the error still occurs in the same place yet the code its now about 100 lines further down the trace. I thought the error may have occurred somewhere else.

• Random code corruption/errors

  in General • 10 years

  

  @Gordon I've attached the partial output from a trace() after the error occurred. This time it manifested itself in some debug code. Basically a i++ became i,+ but again in the same function.
  (just noticed i<a.length also became k<a.length)

  The error is on line 917 of the file. I did a trace before the error occurred and the code was correct (I thought Closure may be corrupting something but that doesn't seem to be the case.)

  I have no issues giving you the code but it would take a lot of setup to get it running (you would need an ILI9341 with touch & wiz5500io). Maybe there is something else I could try before that?

  I'm unsure about the trace command - would it be worth doing a trace immediately before the error, then immediately after and doing a diff on them to see if there are more corruptions?

  (I copied the trace output from the console, is there a better way - maybe a simple dos command to redirect the output from a com port to a file after ECHO trace() > COM5 ?)

  I can reproduce the error in about 5 seconds of loading the program - basically a few clicks of the buttons on my ILI9341.

  I tried to reproduce the error with less code but haven't managed to yet.

  Hopefully i haven't done anything stupid since I don't want to waste your time!

  EDIT: Just ran it again - this time:

  Uncaught Error: Field or method does not already exist, and can't create it on undefined
   at line 1 col 48
  ...i=0;i<a.length;i++)console.lpg(a.charCodeAt(i));return{x:a.c...
                                 ^
  

  log became lpg. The error always seems to be 1 character out.

• Random code corruption/errors

  in General • 10 years

  

  I've tried the latest 1v72 but identical error.I can consistently reproduce the error even after a reset & reload and after adding debug code, its always in the same block of code but it is slightly different each time. I honestly cant see anything wrong with the code (but I've been confident about that before yet wrong!!)

  I'll try to investigate a bit more tonight.

• Random code corruption/errors

  in General • 10 years

  

  Hi

  All of a sudden I'm getting random code corruption/errors such as this:

  Uncaught Error: Field or method does not already exist, and can't create it on undefined
   at line 1 col 64
  ...deAt(1)+a.charCodeAt(2),w:a.charCodeBt(3),h:a.charCodeAt(4),..
  

  As can be seen one of the charCodeAt statements has become charCodeBt !!!

  Another example:

   at line 1 col 26
  {return{x:a.charCodeAt(0+,y:a.charCodeAt(1)+a.charCodeAt(2),...
  

  The closing bracket has become a + symbol.

  Maybe its just how the error is being displayed but I don't think so.

  I happen to remember someone else having similar issues - was there ever a solution?

• Central Heating Controller

  @DaveNI started

  • 12 comments
  • 6,701 views

  @mhoneywill replied
• Central Heating Controller

  in Projects • 10 years

  

  I thought it would be fine since the pump is only 100W but I hadn't really considered the impact of an inductive load. The specs for the relay are:

  General purpose 2 A, 240 VAC
  Tungsten 1 A, 240 VAC
  Motor 1.60 FLA/8.60 LRA, 240 VAC

  I don't understand the FLA/LRA bit at all (I'm sure google knows!)

  Maybe I should consider standard relays - I actually thought solid state would be better since the motor may produce arching at the contacts - I'm not sure if standard circulating pumps have snubbers (if that is the correct term).

  The idea of using 5v is appreciated - I didn't know that could be done.

  I could obviously just try things out and see how it works out but the last thing I want to do is fire up the boiler with no water circulating (I was considering putting a flow switch in so that the boiler would only turn on if water was circulating) but they are difficult to come across/expensive:

  http://uk.farnell.com/gentech-international/fs-05/flow-switch-brass-ac-10bar/dp/1006768

  EDIT: Just wondering - has anyone bought from China, I've been a bit dubious but are the sellers usually reliable (even if delivery is a bit slow)?