Raccoon's Alternative PIO for RC6502

Features (wo/ HW Mod)

• beginClassic() should be called in setup().

void setup(void)
{
  RC6502Pio.beginClassic();
}

• ISR and State Pattern based 'KBD_READY' handling.

Features (w/ HW Mod)

• begin() should be called in setup().

void setup(void)
{
  RC6502Pio.begin();
}

• CSV based 'Program Loader'. You can load 'HEX' files from the storage (micro-sd).
• Built-in 1MHz Clock Generator (not PIN6. PIN9 is used instead of it.)

HW Modification

• Remove 'X14' - 1MHz Clock Oscillator
  • Install 'Micro-SD Slot' and 'Level Shifter' at here.
• Short or Connect using a small register (10Ohm is used) between 'CLOCK' and 'PIN 9' of Arduino.
• Connect 'PIN 8' of Arduino to 'RESET'.
• Connect Micro-SD card module uisng a 'SPI' interface.
  • 'PIN 7' is used for 'CS'
• Pictures

Screenshots