Create AutoPlex7.cpp

Author: TechTronicsEngineering

AutoPlex7.cpp

@@ -0,0 +1,92 @@
+#include "AutoPlex7.h"
+
+void Display::blankSegments() {
+    digitalWrite(A, OFF); digitalWrite(B, OFF); digitalWrite(C, OFF);
+    digitalWrite(D, OFF); digitalWrite(E, OFF); digitalWrite(F, OFF);
+    digitalWrite(G, OFF); digitalWrite(DP, OFF);
+}
+
+void Display::activateDigit(int digitIndex){
+    digitalWrite(D1, digitIndex==0?OFF:ON);
+    digitalWrite(D2, digitIndex==1?OFF:ON);
+    digitalWrite(D3, digitIndex==2?OFF:ON);
+    digitalWrite(D4, digitIndex==3?OFF:ON);
+}
+
+void Display::showDigitSegments(int val){
+    switch(val){
+        case 0: digitalWrite(A,ON); digitalWrite(B,ON); digitalWrite(C,ON); digitalWrite(D,ON); digitalWrite(E,ON); digitalWrite(F,ON); digitalWrite(G,OFF); break;
+        case 1: digitalWrite(A,OFF); digitalWrite(B,ON); digitalWrite(C,ON); digitalWrite(D,OFF); digitalWrite(E,OFF); digitalWrite(F,OFF); digitalWrite(G,OFF); break;
+        case 2: digitalWrite(A,ON); digitalWrite(B,ON); digitalWrite(C,OFF); digitalWrite(D,ON); digitalWrite(E,ON); digitalWrite(F,OFF); digitalWrite(G,ON); break;
+        case 3: digitalWrite(A,ON); digitalWrite(B,ON); digitalWrite(C,ON); digitalWrite(D,ON); digitalWrite(E,OFF); digitalWrite(F,OFF); digitalWrite(G,ON); break;
+        case 4: digitalWrite(A,OFF); digitalWrite(B,ON); digitalWrite(C,ON); digitalWrite(D,OFF); digitalWrite(E,OFF); digitalWrite(F,ON); digitalWrite(G,ON); break;
+        case 5: digitalWrite(A,ON); digitalWrite(B,OFF); digitalWrite(C,ON); digitalWrite(D,ON); digitalWrite(E,OFF); digitalWrite(F,ON); digitalWrite(G,ON); break;
+        case 6: digitalWrite(A,ON); digitalWrite(B,OFF); digitalWrite(C,ON); digitalWrite(D,ON); digitalWrite(E,ON); digitalWrite(F,ON); digitalWrite(G,ON); break;
+        case 7: digitalWrite(A,ON); digitalWrite(B,ON); digitalWrite(C,ON); digitalWrite(D,OFF); digitalWrite(E,OFF); digitalWrite(F,OFF); digitalWrite(G,OFF); break;
+        case 8: digitalWrite(A,ON); digitalWrite(B,ON); digitalWrite(C,ON); digitalWrite(D,ON); digitalWrite(E,ON); digitalWrite(F,ON); digitalWrite(G,ON); break;
+        case 9: digitalWrite(A,ON); digitalWrite(B,ON); digitalWrite(C,ON); digitalWrite(D,ON); digitalWrite(E,OFF); digitalWrite(F,ON); digitalWrite(G,ON); break;
+    }
+}
+
+void Display::begin(){
+    int pins[] = {D1,D2,D3,D4,A,B,C,D,E,F,G,DP};
+    for(int i=0;i<12;i++) pinMode(pins[i], OUTPUT);
+    clearDisplay();
+
+    // Set up Timer2 for ~1kHz multiplexing
+    TCCR2A = 0;
+    TCCR2B = 0;
+    TCNT2  = 0;
+    OCR2A = 249;               // 16MHz/(64*1000Hz)-1
+    TCCR2A |= (1 << WGM21);
+    TCCR2B |= (1 << CS22);     // prescaler 64
+    TIMSK2 |= (1 << OCIE2A);   // enable compare match interrupt
+    sei();                      // enable global interrupts
+}
+
+void Display::blankDigit(){ blankSegments(); }
+
+void Display::clearDisplay(){
+    for(int i=0;i<4;i++){ digitsToDisplay[i]=-1; decimalFlags[i]=false; }
+    blankSegments();
+    digitalWrite(D1,OFF); digitalWrite(D2,OFF); digitalWrite(D3,OFF); digitalWrite(D4,OFF);
+}
+
+void Display::showDecimal(){ decimalFlags[currentDigit]=true; }
+void Display::clearDecimal(){ decimalFlags[currentDigit]=false; }
+
+void Display::testDisplay(){
+    for(int i=0;i<4;i++){ digitsToDisplay[i]=8; decimalFlags[i]=true; }
+}
+
+void Display::showNumber(int num){
+    int tmp[4];
+    tmp[0] = (num/1000)%10; tmp[1] = (num/100)%10;
+    tmp[2] = (num/10)%10; tmp[3] = num%10;
+
+    bool nonZero=false;
+    for(int i=0;i<4;i++){
+        if(tmp[i]!=0 || nonZero || i==3){ digitsToDisplay[i]=tmp[i]; nonZero=true; }
+        else digitsToDisplay[i]=-1;
+    }
+}
+
+void Display::setDigit(int number){ currentDigit = number>3?0:number; }
+
+void Display::multiplexStep(){
+    blankSegments();
+    activateDigit(currentDigit);
+
+    int val = digitsToDisplay[currentDigit];
+    if(val != -1) showDigitSegments(val);
+    digitalWrite(DP, decimalFlags[currentDigit]?ON:OFF);
+
+    currentDigit++;
+    if(currentDigit>3) currentDigit=0;
+}
+
+Display display;
+
+ISR(TIMER2_COMPA_vect){
+    display.multiplexStep();
+}