136 lines
3 KiB
C++
136 lines
3 KiB
C++
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#define CLK 2 //Connected to TPIC pin 13: SRCLK (aka Clock)
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#define LATCH 3 //Connected to TPIC pin 12: RCLK (aka Latch/load/CS/SS...)
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#define DOUT 4 //Connected to TPIC pin 3: SER (aka MOSI)
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#define SEG_0 A0
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#define SEG_1 A1
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#define SEG_2 A2
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#define SEG_3 A3
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#define SEG_4 A4
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#define SEG_5 A5
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#define SEG_6 11
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#define SEG_7 12
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#define FET_COUNT 8
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#define BYTE_PER_FET 6
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volatile uint8_t data[FET_COUNT][BYTE_PER_FET];
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long dataMillis = 0;
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uint8_t dataDemoStep = 0;
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void setup() {
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Serial.begin(115200);
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pinMode(CLK,OUTPUT);
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pinMode(LATCH,OUTPUT);
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pinMode(DOUT, OUTPUT);
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pinMode(SEG_0, OUTPUT);
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pinMode(SEG_1, OUTPUT);
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pinMode(SEG_2, OUTPUT);
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pinMode(SEG_3, OUTPUT);
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pinMode(SEG_4, OUTPUT);
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pinMode(SEG_5, OUTPUT);
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pinMode(SEG_6, OUTPUT);
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pinMode(SEG_7, OUTPUT);
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initializeSRData(); //Prepares SR and clears data on serial line
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}
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void loop() {
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if(millis() - dataMillis > 10) {
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static uint8_t counterFet = 0;
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static uint8_t counterDigit = 0;
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static uint8_t counterBit = 0;
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for(int fet=0; fet<FET_COUNT; fet++) {
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for(int digit=0; digit<BYTE_PER_FET; digit++) {
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if(fet == counterFet && digit == counterDigit) {
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data[fet][digit] = _BV(counterBit);
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} else {
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data[fet][digit] = 0;
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}
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}
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}
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counterBit++;
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if(counterBit > 7) {
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counterBit = 0;
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counterDigit++;
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if(counterDigit > 5) {
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counterFet++;
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counterDigit = 0;
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counterFet %= FET_COUNT;
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}
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}
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dataMillis = millis();
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}
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refreshDisplay(); //Cycles through all displays and digits
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}
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void initializeSRData() {
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digitalWrite(LATCH,HIGH); //Tells all SRs that uController is sending data
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for(int digit = 0; digit < BYTE_PER_FET; digit++) {
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shiftOut(DOUT, CLK, LSBFIRST,0);
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}
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digitalWrite(LATCH,LOW); //Tells all SRs that uController is done sending data
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}
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void clearDisplay(int dispID) {
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initializeSRData();
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refreshDisplay();
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}
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void refreshDisplay() {
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for(int fet=0; fet<FET_COUNT; fet++) {
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// switch fets
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digitalWrite(SEG_0, LOW);
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digitalWrite(SEG_1, LOW);
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digitalWrite(SEG_2, LOW);
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digitalWrite(SEG_3, LOW);
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digitalWrite(SEG_4, LOW);
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digitalWrite(SEG_5, LOW);
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digitalWrite(SEG_6, LOW);
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digitalWrite(SEG_7, LOW);
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digitalWrite(LATCH, HIGH);
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for(int digit = 0; digit < BYTE_PER_FET; digit++) {
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shiftOut(DOUT, CLK, LSBFIRST, data[fet][digit]);
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}
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digitalWrite(LATCH, LOW);
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// switch fets
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digitalWrite(SEG_0, (fet == 0) ? HIGH : LOW);
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digitalWrite(SEG_1, (fet == 1) ? HIGH : LOW);
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digitalWrite(SEG_2, (fet == 2) ? HIGH : LOW);
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digitalWrite(SEG_3, (fet == 3) ? HIGH : LOW);
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digitalWrite(SEG_4, (fet == 4) ? HIGH : LOW);
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digitalWrite(SEG_5, (fet == 5) ? HIGH : LOW);
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digitalWrite(SEG_6, (fet == 6) ? HIGH : LOW);
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digitalWrite(SEG_7, (fet == 7) ? HIGH : LOW);
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delayMicroseconds(500);
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//delay(1);
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}
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}
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