buzztiaan

#include <Energia.h>
#include <SPI.h>
#include "EnergiaMax7219.h"
#include "font2.h"

#define numberofstars 8

#define LEFT 1

buzztiaan

volatile int state = HIGH;
volatile int flag = HIGH;

volatile int Aold = 0;
volatile int Anew = 0;
volatile int Bold = 0;
volatile int Bnew = 0;

static boolean rotating=false;      // debounce management

buzztiaan

#define PS2_clockpin PE_2
#define PS2_datapin PE_3

byte read_CLOCK() {
  return digitalRead(PS2_clockpin);
}

byte read_DATA() {
  return digitalRead(PS2_datapin);
}

buzztiaan

// attempt at PS2 implementation
// code stolen from http://hippy.blogs.exetel.com.au/index.php?/archives/24-MA2onPC,-a-Trackball-and-a-Stellaris-Launchpad.html

#define CHECK_BIT(var,pos) ((var) & (1<<(pos)))

#define PS2_clockpin PE_2
#define  PS2_datapin PE_3

// possible signal states
enum

buzztiaan

/*

Playing around for midi_touch_v2. part 1 (redo 20)

* AS1107 on SPI0 connected to 8x8 matrix
* Rotary Encoder on ;
   - PD0
   - PD1 (both sides of the rotary) 
   - PD2 to one of the switch pins
   - rest of the rotary pins to ground