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Update 4joy_adapter.ino

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Jarno Lehtinen 2018-12-08 10:46:49 +02:00 committed by GitHub
parent cec43bfadc
commit 13f66ff2d0
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1 changed files with 8 additions and 9 deletions
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17
C64_4joy_adapter/4joy_adapter.ino
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@ -34,13 +34,13 @@
// Arduino <-> Userport
// VCC = +5V (2)
// GND = GND (A)
// TXD+RXD = Select = PB7 (L)
#define upC 1 // 15,PB1 = PB0 (C)
#define downC 3 // 14,PB3 = PB1 (D)
#define leftC 2 // 16,PB2 = PB2 (E)
#define rightC 6 // 10,PB6 = PB3 (F)
#define fire1C 4 // 8,PB4 = PB4 (H)
#define fire2C 5 // 9,PB5 = PB5 (J)
#define selectC (PIND & _BV(2)) // RXD,PD2(INT2)+TXD,PD3(INT3) = PB7 (L)
// LEDS (inverted):
// RX = D17,PB0
@ -74,13 +74,14 @@ ISR(INT3_vect, ISR_NAKED) { // falling edge, output joystick 4
ISR(INT3_vect_part_2) { ptr = &GPIOR1; }
void setup() {
ptr = &GPIOR0;
DDRB = 0xff; PORTB = 0xff; //all PB-ports are outputs and high (0xff = zero state, because signals are inverted)
DDRF = 0; PORTF = 0xff; // all PF-ports are inputs with pullups
DDRD = B00100000; PORTD = B11110011; // all PD-ports are inputs (except PD5) with pullups (PD2,PD3 without pullup)
pinMode(5, INPUT_PULLUP); // pin5 (PC6) is input
pinMode(7, INPUT_PULLUP); // pin7 (PE6) is input
DDRB = 0xff; //all PB-ports are outputs
DDRF = 0; PORTF = 0xff; // all PF-ports are inputs with pullups
DDRD = B00100000; PORTD = B11010011; // all PD-ports are inputs (except PD5) with pullups (PD2,PD3 without pullup), TX-LED on
if (selectC) ptr = &GPIOR0; else ptr = &GPIOR1;
GPIOR0 = 0xff; GPIOR1 = 0xff; // start from zero state (signals are inverted)
TIMSK0 = 0; // disable timer0 interrupts (Arduino Uno/Pro Micro millis()/micros() update ISR)
@ -97,12 +98,10 @@ void setup() {
TCNT1 = 0; // reset Timer1 counter*/
}
volatile uint8_t joy1, joy2;
void loop() {
uint8_t PF, PD, PC, PE;
PF = PINF; PD = PIND; PC = PINC; PE = PINE;
joy1 = 0xff; joy2 = 0xff; // all signals are inverted
uint8_t joy1 = 0xff; uint8_t joy2 = 0xff; // all signals are inverted
if (up1) bitClear(joy1,upC);
if (down1) bitClear(joy1,downC);
if (left1) bitClear(joy1,leftC);