Is it possible to get this library to compile using AVR Studio?

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Is it possible to get this library to compile using AVR Studio? or only the Arduino software?

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So e folks have compiled it with AVR stupid - part of the goal with the rewrite was to get it pulled away as much as possible from the arduino libraries.

I think the only arduino functions used are fallback pin-to-port mapping functions.

I haven’t yet gotten a copy of avr studio to try building yet, though.

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AVR Stupid … classic. :slight_smile:

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This is why I shouldn’t respond to posts on the phone - autocorrect thinks it knows better :slight_smile:

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Thanks, I got everything working with my ws2811. But am now stuck with the coding. I am making a pov LED poi kind of similar to yours i think Ashley. I am trying to read an array of rgb colors to the LED strip but when I upload the program it just sits there and no lights turn on. Here is my code:

http://pastebin.com/0SkphNN6

The program compiles and uploads fine but no lights… It only seems to not work because the values of iCol and iRow change in the line:

CRGB((a[iCol][iRow][0]), (a[iCol][iRow][1]), (a[iCol][iRow][2]));

In my attempts to troubleshoot I found that the following approach works as desired but it is not the way that i want to write the code (it would be super long…) :

  int x1 = 0;
  int x2 = 0;

  r = a[x2][x1][0];
  g = a[x2][x1][1];
  b = a[x2][x1][2];
  leds[0] = CRGB(g, r, b);
  r = a[x2][1][0];
  g = a[x2][1][1];
  b = a[x2][1][2];
  leds[1] = CRGB(g, r, b);
  r = a[x2][2][0];
  g = a[x2][2][1];
  b = a[x2][2][2];
  leds[2] = CRGB(g, r, b);
  ...etc

Any ideas what I am doing wrong?

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Rather than passing the colors one by one to the array, try passing the entire column to the “leds” array. In my case, I’m reading the data in from a file. My setup has 48 pixels so that 144 color values (48 x 3). When I do the file read, it gets passed directly to the “leds” array. The image is 48 rows tall already, so I don’t need to do anything with the rows, all I need are columns:

    for (int tmpCols = 0; tmpCols < imgColumns; tmpCols++) {
      myFile.read((char*)leds, NUM_LEDS * 3);
      LEDS.show();
      _delay_us(imgSpeed);
    }

So file.read() will read in 144 values from the file and stuff them in the “leds” array.

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I’m sorry to bring this up again:

I’m trying to use FastSPI RC4 in a Atmel Studio 6 8-bit C++ project, but it fails to compile.
First error I get is “expected ‘;’, ‘,’ or ‘)’ before ‘&’ token (…)\lib8tion.h line 518 col 50” which refers to the ‘&’ in “LIB8STATIC void nscale8_LEAVING_R1_DIRTY( uint8_t& i, fract8 scale)”

I’ve only added "#include “FastSPI_LED2.h” " to my project yet.

What am I doing wrong?
Any advice on this topic or a short manual on how to set it up in Studio would be greatly appreciated!

Thanks in advance!

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The problem is - I don’t even have a copy of studio yet - and this version, while written with an eye towards running in studio, does not officially support using atmel studio just yet. Once I get atmel studio up and running here (after this release is out the door and I finish my next two LED projects for halloween), then i’ll take a swing at bringing it up in atmel and writing up notes/docs on it.

At the moment, it sounds like there are some type definitions that are missing for you though, e.g. namely the uint8_t (unsigned char). There may be other includes that are needed for this to happen. (One ‘problem’ with the arduino environment is that there’s a bunch of silent includes that it does for you, you know, to be helpful :slight_smile:

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The typedef should be included, I think it’s somehow connected to the compiler used. As references (&) are not available in C, I believe that Studio tries to compile the .h as C instead of C++. Adding “-x c++ lib8tion.h” or renaming it to .hpp doesn’t impress Studio though…

Maybe someone who managed to use it with Studio can comment on this in the meantime.

Thanks again for the great work!