uXeBoy

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="8.2.2">
<drawing>
<settings>
<setting alwaysvectorfont="no"/>
<setting verticaltext="up"/>
</settings>
<grid distance="0.1" unitdist="inch" unit="inch" style="lines" multiple="1" display="no" altdistance="0.01" altunitdist="inch" altunit="inch"/>
<layers>

uXeBoy

/* Quick and dirty NES to DMG button driver (originally by Mr.Blinky)
 *
 * Using digital pins so it can be easily run on any Arduino
 * Because DigitalRead and DigitalWrite are pretty slow, no delays are
 * required when changing controller pin states and reading in data
 */

//NES button state masks
#define BS_A      _BV(7)
#define BS_B      _BV(6)

uXeBoy

#include <Arduboy2.h>

Arduboy2 arduboy;

BeepPin1 beep1;
BeepPin2 beep2;

static bool   tonesPlaying = false;
static uint8_t    duration = 0;
static uint8_t *tonesStart = 0;