JumJum

Most recent activity

• load graphicsbuffer from sd card

  @JumJum started

  • 2 comments
  • 3 views

  @Gordon replied
• load graphicsbuffer from sd card

  in JavaScript • 6 days, 3 hours

  

  I would like to load a binary image from sd directly to a graphicsbuffer.
  The only way, it worked for me is this:

  var gr = Graphics.createArrayBuffer(64,32,4,{inte­rleavex:true});  //this is a 64x32 LED matrix
  fs = require("fs");
  var x = E.toUint8Array(fs.readFile("myFile.bin")­); //myFile.bin is binary file holding 1024 bytes
  for(var i = 0; i < 1024; i++) gr.buffer[i] = x[i];
  

  Using a temporary array and copy value by value in a loop looks strange to me.
  And it takes a lot of CPU power to copy.
  But all I tried to assign Uint8Array directly to graphics buffer, failed.
  Failed in the way, that loaded image was not shown.

  I'm pretty sure, there is a way to do better, but I don't find it.

• Tensorflow lite for other things thant gesture

  in Bangle.js • 2 weeks, 6 days

  

  @user122861, how did you convert to tflite ?
  I tried some time ago to convert from keras to tflite see Forum entry
  But the result could not be used for bangle. Size was too big.

• make for Banglejs problem with bootloader

  @JumJum started

  • 6 comments
  • 208 views

  @Gordon replied
• make for Banglejs problem with bootloader

  in General • 1 month, 2 weeks

  

  I don't have problems with your change for wrappersources.
  Pretty sure, nobody else uses this up to now ;-)
  Just added the lines you recommended and removed ifdef NO_COMPILE in my local copy and it works as expected.

• make for Banglejs problem with bootloader

  in General • 1 month, 2 weeks

  

  NO_COMPILE is in make file for some years now.
  It was added by me to have an easy method to get wrapperfiles only.
  See lines 820-823 in make file (on github) .
  Its used to create a UI to support blacklist handling
  I checked DFU_UPDATE_BUILD and it works fine. Thanks for this hint.

  BTW, there is a break in handling of WRAPPERSOURCES. entrys are all relative, only tensorflow is absolute. Is there a special reason for that, or is it grown the way it is ?

  ......
  src/jswrap_waveform.c  
  libs/compression/jswrap_heatshrink.c 
  libs/math/jswrap_math.c 
  libs/graphics/jswrap_graphics.c 
  libs/graphics/jswrap_terminal.c
  libs/bluetooth/jswrap_bluetooth.c 
  /home/nodejs/efeu/espruino/EspruinoRelea­se/libs/tensorflow/jswrap_tensorflow.c
  

• make for Banglejs problem with bootloader

  in General • 1 month, 2 weeks

  

  After starting make

  NO_COMPILE=1 BOARD=BANGLEJS make
  

  I get this again and again

  make: *** No rule to make target 'bootloader_espruino_2v08_banglejs.elf',­ needed by 'bootloader_espruino_2v08_banglejs.app_h­ex'.  Stop.
  

  Running same with ESPRUINOBOARD runs fine
  Running same with MDBT42Q fails with same message

  Everything runs on RASPBERRY with gcc-arm-none-eabi-9-2020-q2-update
  Any idea what I've to fix ?

• error in make on raspberry pi (ubuntu)

  @JumJum started

  • 12 comments
  • 489 views

  @fanoush replied
• error in make on raspberry pi (ubuntu)

  in Projects • 2 months

  

  Downloaded gcc-arm-none-eabi-9-2020-q2-update-aarch­64-linux.tar.bz2 as suggested.
  At least compilation for ESPRUINOBOARD runs fine.

• error in make on raspberry pi (ubuntu)

  in Projects • 2 months

  

  @fanoush
  running file ... gives
  /home/nodejs/efeu/tools/gcc-arm-none-eab­i-8-2018-q4-major/bin/arm-none-eabi-gcc:­ ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.24, BuildID[sha1]=9ac5427532642fef341e6e032e­ea16d7eb5fde4c, stripped

  ldd ... gives not a dynamic executable

  In my poor understanding this is the showstopper for my idea.
  Anyway, for espressif I will ask in their forum. Based on my experience with them I don't expect too much