162 lines
3.7 KiB
C++
162 lines
3.7 KiB
C++
// nes-out.ino
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// https://hackaday.io/project/12940-wireless-snes-with-nrf24
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// @baldengineer
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#include <SPI.h>
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#include "RF24.h"
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/* Hardware configuration: Set up nRF24L01 radio on SPI bus plus pins 7 & 8
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uno spi pins
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SPI: 10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK).
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radio(ce_pin,cs_pin) */
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const int radioNumber = 1;
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RF24 radio(9,10);
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byte addresses[][6] = {"1Node","SNES1"};
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/**********************************************************/
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/*
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const byte latch = 3y; // Orange(HDR)
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const byte clock = 7; // Yellow(HDR)
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const byte data = 8; // Red(HDR)
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*/
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const byte latch = 3; // PD3
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const byte clock = 7; // PD7
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const byte data = 8; // PB0
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void setup() {
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// Serial.begin(115200);
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// Serial.println(F("S/NES RF24 Receiver [To Console]"));
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pinMode(latch, INPUT); // black PD3, pin 3
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pinMode(clock, INPUT); // orange PD7, pin 7
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pinMode(data, OUTPUT); // red PB0, pin 8
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digitalWrite(data, LOW);
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attachInterrupt(digitalPinToInterrupt(latch), handleController, RISING);
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radio.begin();
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// Set the PA Level low to prevent power supply related issues since this is a
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// getting_started sketch, and the likelihood of close proximity of the devices. RF24_PA_MAX is default.
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radio.setPALevel(RF24_PA_LOW);
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// Open a reading pipe on this radio
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// radio.openReadingPipe(1,addresses[0]);
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if(radioNumber){
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radio.openWritingPipe(addresses[1]);
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radio.openReadingPipe(1,addresses[0]);
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}else{
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radio.openWritingPipe(addresses[0]);
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radio.openReadingPipe(1,addresses[1]);
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}
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// Start the radio listening for data
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radio.startListening();
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}
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bool skip = false;
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unsigned long currentMillis = 0;
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unsigned long previousMillis = 0;
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int interval = 250;
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volatile int controller = 0xFFFF;
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int lastLatchState = LOW;
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int lastClockState = HIGH;
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int latchState = 0;
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int clockState = 0;
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void handleSerial() {
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return;
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char incomingByte = Serial.read();
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switch (incomingByte) {
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case '!':
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skip = true;
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break;
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case '@':
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skip = false;
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break;
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}
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}
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int previousController=0;
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int handleRadio() {
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int incomingController = 0xFFFF;
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int newController = 0xFFFF;
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//while (radio.available()) {
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radio.read( &incomingController, sizeof(incomingController) ); // Get the payload
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// }
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// Serial.print(F("Rec: "));
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// Serial.println(incomingController, BIN);
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for(int x=0; x < 16; x++) {
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// 0000 0000 0000 0000y
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if (bitRead(incomingController, x))
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newController = newController | 0x01;
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else
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newController = newController & 0xFFFE;
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if (x != 15)
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newController = newController << 1;
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}
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if (previousController != incomingController) {
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/*
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Serial.println(F("Chg"));
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Serial.print(F("Last: "));
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Serial.println(previousController, BIN);
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Serial.print(F("Now : "));
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Serial.println(incomingController, BIN);
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Serial.print(F("Swiz: "));
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Serial.println(newController, BIN); */
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//radio.write( &incomingController, sizeof(incomingController));
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previousController = incomingController;
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}
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// Serial.print(F("Now: "));
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// Serial.println(newController, BIN);
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// delay (500);
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return newController;
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}
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void handleController() {
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int thisControllerValue = controller;
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for (int x = 0; x<16; x++) {
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if (thisControllerValue & 0x01)
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PORTB = PORTB | 0x01; // 0000 0001
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else
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PORTB = PORTB & 0xFE; // 1111 1110
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while (PIND & 0x80);
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while (!(PIND & 0x80));
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thisControllerValue = thisControllerValue >> 1;
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}
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//PORTB = PORTB | 0x01; // PB0, HIGH: 0000 0001
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PORTB = PORTB & 0xFE; // PB0, LOW.
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return;
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}
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void loop() {
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/*if (Serial.available())
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handleSerial(); */
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while (skip)
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handleSerial();
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if( radio.available())
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controller = handleRadio();
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currentMillis = millis();
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}
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