Potential Library Problem/Error Message for my first advanced project

Projects Programming
1

Hello Arduino Friends,

I am working on an arduino project for which the link is here:

I keep getting the following error message and I'm not at all sure what to do. This looks like such a great project. I've come so far and I'm a little befuddled. If anyone could help I would so so so appreciate it! Thanks so much!

Error message:

Arduino: 1.5.8 (Mac OS X), Board: "Arduino Uno"

/Users/Kerem/Documents/Arduino/libraries/Fix_fft/fix_fft.cpp:50:7: error: 'prog_int8_t' does not name a type
const prog_int8_t Sinewave[N_WAVE-N_WAVE/4] PROGMEM = {
^
In file included from /Users/Kerem/Documents/Arduino/libraries/Fix_fft/fix_fft.cpp:1:0:
/Users/Kerem/Documents/Arduino/libraries/Fix_fft/fix_fft.cpp: In function 'int fix_fft(char*, char*, int, int)':
/Users/Kerem/Documents/Arduino/libraries/Fix_fft/fix_fft.cpp:199:28: error: 'Sinewave' was not declared in this scope
wr = pgm_read_word_near(Sinewave + j+N_WAVE/4);
^
/Users/Kerem/Documents/Arduino/libraries/Fix_fft/fix_fft.cpp:209:28: error: 'Sinewave' was not declared in this scope
wi = -pgm_read_word_near(Sinewave + j);
^
Error compiling.

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2

In version 1.6.0, the "prog_int8_t" is no longer used. Replace it with "const int8_t".
Explanation about PROGMEM use is here : Gammon Forum : Electronics : Microprocessors : Putting constant data into program memory (PROGMEM)

3

Peter_n:
In version 1.6.0, the "prog_int8_t" is no longer used. Replace it with "const int8_t".
Explanation about PROGMEM use is here : Gammon Forum : Electronics : Microprocessors : Putting constant data into program memory (PROGMEM)

I'm not sure how to do that? If I am to edit my library then for some reason i am being blocked to do that.

5

In your own "Documents" folder is a folder "Arduino", that is where you need to go. You will see all your projects there and also a folder "libraries". In the folder "libraries", go to the folder "Fix_fft" and edit "fix_fft.cpp" to change the "prog_int8_t".

/Users/<[i]user[/i]>/Documents/Arduino/libraries/Fix_fft/fix_fft.cpp