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arduino
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This commit is contained in:
Pedro de Oliveira 2014-09-15 00:19:13 +01:00
parent 15c0dadd11
commit 4196f9ba40
1 changed files with 58 additions and 58 deletions
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116
snes_controller/snes_controller.ino
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@ -1,14 +1,14 @@
/* /*
Based on https://github.com/njguibert/NesJoystickArduino/ Based on https://github.com/njguibert/NesJoystickArduino/
Adapted for SNES with info from http://www.gamefaqs.com/snes/916396-super-nintendo/faqs/5395 Adapted for SNES with info from http://www.gamefaqs.com/snes/916396-super-nintendo/faqs/5395
Snes Controller - Arduino Snes Controller - Arduino
White 5V - 5V White 5V - 5V
Brown GND - GND Brown GND - GND
Yellow (Clock) - Pin 13 Yellow (Clock) - Pin 13
Orange (Latch) - Pin 12 Orange (Latch) - Pin 12
Red (Data) - Pin 11 Red (Data) - Pin 11
*/ */
static int clock = 13; // set the clock pin static int clock = 13; // set the clock pin
static int latch = 12; // set the latch pin static int latch = 12; // set the latch pin
@ -17,8 +17,10 @@ static int datin = 11; // set the data in pin
JoyState_t joySt; JoyState_t joySt;
void setup() { void setup() {
//Serial.begin(9600); Serial.begin(9600);
// while the serial stream is not open, do nothing:
while (!Serial) ;
pinMode(latch,OUTPUT); pinMode(latch,OUTPUT);
pinMode(clock,OUTPUT); pinMode(clock,OUTPUT);
pinMode(datin,INPUT); pinMode(datin,INPUT);
@ -29,80 +31,78 @@ void setup() {
joySt.zAxis = 127; joySt.zAxis = 127;
} }
word controllerRead() { word controllerRead()
{
word data = 0; word data = 0;
digitalWrite(latch,LOW);
digitalWrite(clock,LOW);
digitalWrite(latch,HIGH); digitalWrite(latch,HIGH);
delayMicroseconds(2); delayMicroseconds(2);
digitalWrite(latch,LOW); digitalWrite(latch,LOW);
delayMicroseconds(1);
data = digitalRead(datin);
for (int i = 0; i < 16; i++)
for (int i = 1; i <= 15; i ++) { {
data >>= 1;
data |= (digitalRead(datin) ? 0x8000 : 0);
digitalWrite(clock,HIGH); digitalWrite(clock,HIGH);
delayMicroseconds(2); //delayMicroseconds(1);
data = data << 1;
data = data | digitalRead(datin) ;
delayMicroseconds(2);
digitalWrite(clock,LOW); digitalWrite(clock,LOW);
} }
return data; return data;
} }
void loop() { void loop() {
/* /*
Clock Cycle Button Reported Clock Cycle Button Reported
=========== =============== =========== ===============
1 B 1 B
2 Y 2 Y
3 Select 3 Select
4 Start 4 Start
5 Up on joypad 5 Up on joypad
6 Down on joypad 6 Down on joypad
7 Left on joypad 7 Left on joypad
8 Right on joypad 8 Right on joypad
9 A 9 A
10 X 10 X
11 L 11 L
12 R 12 R
13 none (always high) 13 none (always high)
14 none (always high) 14 none (always high)
15 none (always high) 15 none (always high)
16 none (always high) 16 none (always high)
*/ */
word controller_data = controllerRead(); // Read 16 bit of data word controller_data = controllerRead(); // Read 16 bit of data
Serial.println(controller_data, BIN);
joySt.buttons = 0; // Reset buttons joySt.buttons = 0; // Reset buttons
joySt.buttons |= (!bitRead(controller_data, 15) << 0); // B - bit 16 - bit 1 on the Joystick joySt.buttons |= (!bitRead(controller_data, 0) << 0); // B - bit 1 - bit 1 on the Joystick
joySt.buttons |= (!bitRead(controller_data, 14) << 1); // Y - bit 15 - bit 2 on the Joystick joySt.buttons |= (!bitRead(controller_data, 1) << 1); // Y - bit 2 - bit 2 on the Joystick
joySt.buttons |= (!bitRead(controller_data, 13) << 6); // Select - bit 14 - bit 7 on the Joystick joySt.buttons |= (!bitRead(controller_data, 2) << 6); // Select - bit 3 - bit 7 on the Joystick
joySt.buttons |= (!bitRead(controller_data, 12) << 7); // Start - bit 13 - bit 8 on the Joystick joySt.buttons |= (!bitRead(controller_data, 3) << 7); // Start - bit 4 - bit 8 on the Joystick
joySt.buttons |= (!bitRead(controller_data, 7) << 2); // A - bit 8 - bit 6 on the Joystick joySt.buttons |= (!bitRead(controller_data, 8) << 2); // A - bit 9 - bit 6 on the Joystick
joySt.buttons |= (!bitRead(controller_data, 6) << 3); // X - bit 7 - bit 5 on the Joystick joySt.buttons |= (!bitRead(controller_data, 9) << 3); // X - bit 10 - bit 5 on the Joystick
joySt.buttons |= (!bitRead(controller_data, 5) << 4); // L - bit 6 - bit 4 on the Joystick joySt.buttons |= (!bitRead(controller_data, 10) << 4); // L - bit 11 - bit 4 on the Joystick
joySt.buttons |= (!bitRead(controller_data, 4) << 5); // R - bit 5 - bit 3 on the Joystick joySt.buttons |= (!bitRead(controller_data, 11) << 5); // R - bit 12 - bit 3 on the Joystick
joySt.xAxis = 127; // Reset x axis joySt.xAxis = 127; // Reset x axis
joySt.yAxis = 127; // Rest y axis joySt.yAxis = 127; // Rest y axis
if (!bitRead(controller_data, 11)) // Up - bit 12 if (!bitRead(controller_data, 4)) // Up - bit 5
joySt.yAxis = 0; joySt.yAxis = 0;
if (!bitRead(controller_data, 10)) // Down - bit 11 if (!bitRead(controller_data, 5)) // Down - bit 6
joySt.yAxis = 255; joySt.yAxis = 255;
if (!bitRead(controller_data, 9)) // Left - bit 10 if (!bitRead(controller_data, 6)) // Left - bit 7
joySt.xAxis = 0; joySt.xAxis = 0;
if (!bitRead(controller_data, 8)) // Right - bit 9 if (!bitRead(controller_data, 7)) // Right - bit 8
joySt.xAxis = 255; joySt.xAxis = 255;
Joystick.setState(&joySt); // Update joystick state Joystick.setState(&joySt); // Update joystick state
} }