You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 lines
918 B
Plaintext
50 lines
918 B
Plaintext
// digital pins 2-7 => kathoden 0-5
|
|
// analog pins 3-5 => kathoden 6-8
|
|
// analog pins 0-2 => anoden A0, B1, C2
|
|
|
|
volatile int matrix[9];
|
|
|
|
void setup() {
|
|
// digital pins 2-7
|
|
DDRD |= 0b11111100;
|
|
// analog pins 0-2 + 3-5
|
|
DDRC |= 0b00111111;
|
|
|
|
matrix = {
|
|
// ebene 0
|
|
0b101,
|
|
0b000,
|
|
0b101,
|
|
// ebene 1
|
|
0b000,
|
|
0b010,
|
|
0b000,
|
|
// ebene 2
|
|
0b101,
|
|
0b000,
|
|
0b101,
|
|
};
|
|
}
|
|
|
|
|
|
void loop() {
|
|
for(int ebene=0; ebene<=2; ebene++) {
|
|
// *erst* kathoden auf 1 (leuchtet nicht)
|
|
PORTD |= 0b11111100;
|
|
PORTC |= 0b00111000;
|
|
|
|
// anoden auf 0
|
|
PORTC &= 0b11111000;
|
|
// unsere anode auf 1
|
|
PORTC |= _BV(ebene+0);
|
|
|
|
// kathoden 0-2 => digital-pins 2-4
|
|
PORTD &= ~(matrix[3*ebene + 0] << 2);
|
|
// kathoden 3-5 => digital-pins 5-7
|
|
PORTD &= ~(matrix[3*ebene + 1] << 5);
|
|
// kathoden 6-8 => analog-pins 3-5
|
|
PORTC &= ~(matrix[3*ebene + 2] << 3);
|
|
}
|
|
}
|
|
|