PS2Keyboard library giving "Multiple definition of..." errors.

Projects Programming
1

For my current (and extremely incomplete) project, I am attempting to use both the PS2Keyboard and TVOut libraries.
PS2Keyboard: Arduino Playground - PS2Keyboard
TVOut: Arduino Playground - TVout

Put simply, I checked around for a solution to my problem (i.e. every single function in the PS2Keyboard library being defined twice) and found this on StackOverflow:

...But cross-referencing the solution with my program and libraries lead me to believe that something else is at play. Here's the beginning of each file in my sketch folder:

MURICANKeyboardToTV

#include <PS2Keyboard.h>

const int DataPin = 8;
const int IRQpin = 3;

PS2Keyboard keyboard;

#include <TVout.h>
#include <fontALL.h>
#include "TVOlogo.h"


TVout TV;


//Nothing relevant beyond this point.



void setup() {

PS2Keyboard.cpp

 #include "PS2Keyboard.h"

#define BUFFER_SIZE 45
static volatile uint8_t buffer[BUFFER_SIZE];
static volatile uint8_t head, tail;
static uint8_t DataPin;
static uint8_t CharBuffer=0;
static uint8_t UTF8next=0;
static const PS2Keymap_t *keymap=NULL;

PS2Keyboard.h

#ifndef PS2Keyboard_h
#define PS2Keyboard_h

#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h" // for attachInterrupt, FALLING
#else
#include "WProgram.h"
#endif

#include "utility/int_pins.h"

//And then tons of stuff is #define'd.

TVOlogo.cpp

 #include "TVOlogo.h"
PROGMEM const unsigned char TVOlogo[] = {
//Figgis fiddus!

TVOlogo.h

#include <avr/pgmspace.h>
#ifndef TVOLOGO_H
#define TVOLOGO_H

extern const unsigned char TVOlogo[];
#endif

//And that's the end of the file. No, really.

Everything seems to be in order, but then again it might just be the case that I need "fresh eyes" to look at it. Suggestions, ideas, etc?

Sidenote: I'm hoping to turn this into a notepad program, with a PS2 keyboard as input, a TV as output, and an SD card as the storage medium. So far, all three components work perfectly by themselves (or at least I've had complete success with the demo programs for each...).

2

"Multiple definition of..." what?

//Nothing relevant beyond this point.

If you are so sure, why do you still have a problem?

3
  1. Whoops! I meant that I get a "multiple defintion of..." error for every single function declared in the PS2Keyboard library.
  2. Here's the full code; I just thought it was irrelevant because the problem is having functions defined multiple times.
#include <PS2Keyboard.h>

const int DataPin = 8;
const int IRQpin = 3;

PS2Keyboard keyboard;

#include <TVout.h>
#include <fontALL.h>
#include "TVOlogo.h"


TVout TV;






void setup() {
  keyboard.begin(DataPin, IRQpin, PS2Keymap_US);  
  Serial.begin(9600);
  Serial.println("'MURICAN Keyboard Test:");


  TV.begin(NTSC,120,96);
  TV.select_font(font6x8);
  intro();
  TV.println("Printing keyboard input..");
  TV.delay(2000);
  TV.clear_screen();
  TV.select_font(font6x8);
}

void loop() {
  
    if (keyboard.available()) {
      char c = keyboard.read();
      Serial.print(c);
      TV.println(c);
  }
    else {
      Serial.print("What? Where's the keyboard?");
      delay(2500);
      Serial.print("I'll give you a second to try that again.");
      delay(10000);
    }
}

void intro() {
unsigned char w,l,wb;
  int index;
  w = pgm_read_byte(TVOlogo);
  l = pgm_read_byte(TVOlogo+1);
  if (w&7)
    wb = w/8 + 1;
  else
    wb = w/8;
  index = wb*(l-1) + 2;
  for ( unsigned char i = 1; i < l; i++ ) {
    TV.bitmap((TV.hres() - w)/2,0,TVOlogo,index,w,i);
    index-= wb;
    TV.delay(50);
  }
  for (unsigned char i = 0; i < (TV.vres() - l)/2; i++) {
    TV.bitmap((TV.hres() - w)/2,i,TVOlogo);
    TV.delay(50);
  }
  TV.delay(3000);
  TV.clear_screen();
}
4

So, erm...what should I try now?

5

So, erm...what should I try now?

I tied downloading the libraries you are using. With your sketch, I got a bunch of compile errors. I gave up on making it work.

I'd guess that somehow, given the multiple declarations errors, that you have two copies of the PS2Keyboard library.

6

Apparently that was the problem; somehow I ended up with a copy of the PS2Keyboard library in the Arduino directory (instead of the libraries directory). Thanks!

EDIT: Oh great, now it's finding issue with a copy of the library in some Temp folder. sigh