Phased Clock

[robstave]

speed in four outputs, but the phase is 90 degrees

so

xxxx----xxxx----xxxx----xxxx----
--xxxx----xxxx----xxxx----xxxx----
----xxxx----xxxx----xxxx----xxxx----
------xxxx----xxxx----xxxx----xxxx----

internally, there will be a switch that can do gate/trigger I guess

[robstave]

/**

• ACS-85-0605
• ATTiny85 1 bit waveform selector
• External pin 1 = Reset (not used)
• External pin 2 (PB3) = OUT1
• External pin 3 (PB4) = OUT2
• External pin 4 = GND
• External pin 5 (PB0) = OUT3
• External pin 6 (PB1) = OUT4
• External pin 7 (PB2) = Clock
• External pin 8 = Vcc
• V 1.0 - First Version
• Note: This sketch has been written specifically for ATTINY85 and not Arduino uno
• Rob Stave (Rob the fiddler) CCBY 2015 */

// ATTiny overview // +-\/-+ // Reset 1| |8 VCC // (pin3) OUT2 PB3 2| |7 PB2 (pin2/int0) CLOCK // (pin4) OUT3 PB4 3| |6 PB1 OUT2 (pin1) s0 // GND 4| |5 PB0 OUT0 (pin0) out // ------

const int int0 = 0; // interrupt 0

volatile byte pattern; int patternCount = 0;

define PATTERN_0_SIZE 8

boolean pattern_0[PATTERN_0_SIZE] = { HIGH, HIGH, LOW, LOW, LOW, LOW, LOW, LOW };

define PATTERN_1_SIZE 8

boolean pattern_1[PATTERN_0_SIZE] = { LOW, LOW, HIGH, HIGH, LOW, LOW, LOW, LOW };

define PATTERN_2_SIZE 8

boolean pattern_2[PATTERN_0_SIZE] = { LOW, LOW, LOW, LOW, HIGH, HIGH, LOW, LOW };

define PATTERN_3_SIZE 8

boolean pattern_3[PATTERN_0_SIZE] = { LOW, LOW, LOW, LOW, LOW, LOW, HIGH, HIGH };

volatile byte counter0 = 0; volatile byte counter1 = 0; volatile byte counter2 = 0; volatile byte counter3 = 0;

void setup() {

PORTB = 0x00; //enable all pull-down

DDRB = B00011011; // set PORTB to inputs except PB0

attachInterrupt(int0, clockCounter, CHANGE); // clockInt is our interrupt, clockCounter function is called when // invoked on either clock edge } boolean setPatternValue() { boolean result = LOW;

result = pattern_0[counter0];

if (result == HIGH) {
PORTB |= _BV(PB0);

} else { PORTB &= ~_BV(PB0); }

counter0++; if (counter0 >= PATTERN_0_SIZE) { counter0 = 0; }

result = pattern_1[counter1];

if (result == HIGH) {
PORTB |= _BV(PB1);

} else { PORTB &= ~_BV(PB1); }

counter1++; if (counter1 >= PATTERN_1_SIZE) { counter1 = 0; }

result = pattern_2[counter2];

if (result == HIGH) {
PORTB |= _BV(PB3);

} else { PORTB &= ~_BV(PB3); }

counter2++; if (counter2 >= PATTERN_2_SIZE) { counter2 = 0; }

result = pattern_3[counter3];

if (result == HIGH) {
PORTB |= _BV(PB4);

} else { PORTB &= ~_BV(PB4); }

counter3++; if (counter3 >= PATTERN_3_SIZE) { counter3 = 0; } }

/**

• Interrupt.
• Sample the counter and determine the elapsed time. */ void clockCounter() // called by interrupt { setPatternValue(); }

void loop() { // loop d loop }

[robstave]

0610