Apple-1-Mini/code/AVR/SerialTest/SerialTest.ino

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Arduino
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#define DA A0
#define RDA A1
#define PB0 2
#define PB1 A7
#define PB2 A6
#define PB3 A5
#define PB4 A4
#define PB5 A3
#define PB6 A2
byte data = 0;
byte data_pins[] = { PB0, PB1, PB2, PB3, PB4, PB5, PB6 };
void setup()
{
pinMode(DA, INPUT);
pinMode(RDA, OUTPUT);
pinMode(PB0, INPUT);
pinMode(PB1, INPUT);
pinMode(PB2, INPUT);
pinMode(PB3, INPUT);
pinMode(PB4, INPUT);
pinMode(PB5, INPUT);
pinMode(PB6, INPUT);
Serial.begin(9600);
}
void loop()
{
digitalWrite(RDA, HIGH); // Tell PIA we are ready to receive data
if (digitalRead(DA)) // Is there any data?
{
data = 0;
for (byte i = 0; i < 7; i++) // Yes, get byte data
{
if (digitalRead(data_pins[i]))
{
data |= (1 << i);
}
}
// Output received data to serial terminal.
Serial.print("Received: ");
Serial.print(data);
Serial.print("\t");
for (int i = 7; i >= 0; i--)
{
Serial.print(digitalRead(data_pins[i]));
}
Serial.print("\t");
Serial.println((char)data);
digitalWrite(RDA, LOW);
delay(12);
}
}