Open Music Labs Forums

Hello,

I have an Arduino UNO (an older revision I believe, if that matters) and running Arduino 1.6.3 IDE. I cannot get most of the examples to compile and it appears to be an issue with the libraries. I know I have the libraries installed as they show up in the dropdown menu in the IDE, however I keep getting errors like this:

lfo.pde:36:10: error: 'prog_int16_t' does not name a type
In file included from C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/WString.h:29:0,
from C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/Print.h:26,
from C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/Stream.h:26,
from C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire/Wire.h:26,
from lfo.pde:17:
lfo.pde: In function 'void __vector_11()':
lfo.pde:89:30: error: 'sinewave' was not declared in this scope
lfo.pde:98:30: error: 'sinewave' was not declared in this scope
Error compiling.

Is there a compatibility issue I missed? Sorry, I'm kind of a noob.

ok, can you try this for me: open up the sine_generator sketch. change the initial progmem definition at the top frome:

PROGMEM  prog_int16_t sinewave[]  = {
  // this file is stored in AudioCodec.h and is a 1024 value
  // sinewave lookup table of signed 16bit integers
  // you can replace it with your own waveform if you like
  #include <sinetable.inc>
};

to

extern const  int16_t sinewave[] PROGMEM = {
  // this file is stored in AudioCodec.h and is a 1024 value
  // sinewave lookup table of signed 16bit integers
  // you can replace it with your own waveform if you like
  #include <sinetable.inc>
};

excellent, thanks for helping debug that with me. i will update the libraries.