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@@ -0,0 +1,85 @@ |
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#include <TimerOne.h> |
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const int pinData = 6; |
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const int pinStatus = 7; |
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void setup(void) |
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{ |
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pinMode(pinData, OUTPUT); |
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//Timer1.initialize(60); |
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//Timer1.attachInterrupt(clockCycle); |
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Timer1.initialize(1100/2); |
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Timer1.attachInterrupt(clockCycle); |
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Timer1.stop(); |
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pinMode(pinStatus, INPUT_PULLUP); |
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attachInterrupt(digitalPinToInterrupt(pinStatus), statusCycle, CHANGE); |
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Serial.begin(9600); |
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} |
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volatile long lastChange = 0; |
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volatile long lastStart = 0; |
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volatile int x = 0; |
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volatile int dataWord = 0; |
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volatile int dataState = 0; |
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volatile int dataDelay = 0; |
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volatile int clkState = LOW; |
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void statusCycle() { |
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long timeNow = millis(); |
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long changeDiff = timeNow - lastChange; |
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lastChange = timeNow; |
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if (changeDiff >= 10) { |
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lastStart = timeNow; |
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dataWord = (' ' + x); |
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dataState = 8; |
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dataDelay = 0; |
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x = (x + 1) % 100; |
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clkState = HIGH; |
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Timer1.start(); |
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} |
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if (timeNow - lastStart >= 7 && changeDiff >= 2) { |
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//dataWord = 0b1000000011 | (('A' + x) << 2); |
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} |
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} |
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void clockCycle(void) |
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{ |
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if (clkState == LOW) { |
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clkState = HIGH; |
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//digitalWrite(pinData, (dataState > 0) ? LOW : HIGH); |
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} else { |
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clkState = LOW; |
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if (dataDelay > 0) { |
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dataDelay--; |
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} else if (dataState > 0) { |
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int bitToSend = (dataWord >> (dataState - 1)) & 1; |
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//digitalWrite(pinData, bitToSend ? LOW : HIGH); |
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dataState--; |
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if (dataState <= 0) { |
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Timer1.stop(); |
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} |
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} else { |
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//digitalWrite(pinData, HIGH); |
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} |
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} |
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if (dataDelay <= 0 && dataState > 0) |
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digitalWrite(pinData, clkState); |
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else |
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digitalWrite(pinData, HIGH); |
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} |
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void loop(void) |
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{ |
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delay(500); |
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/*noInterrupts(); |
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dataWord = 0b1000000011 | (('A' + x) << 2); |
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dataState = 16; |
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x = (x + 1) % 30; |
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interrupts();*/ |
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} |