65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
#include <detpic32.h>
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const unsigned int dis7Scodes[] = {0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D,
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0xFD, 0x07, 0x7F, 0x6F, 0x77, 0xFC,
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0x39, 0x5E, 0xF9, 0xF1};
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typedef enum { HIGH, LOW } flag;
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unsigned char toBdc(unsigned char value) {
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return ((value / 10) << 4) + (value % 10);
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}
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void send2displays(unsigned char value) {
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static flag f = LOW;
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value = toBdc(value);
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unsigned char high = dis7Scodes[value >> 4];
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unsigned char low = dis7Scodes[value & 0x0F];
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if (f == HIGH) {
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LATD = (LATD & 0xFF9F) | 0x0040;
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LATB = (LATB & 0x80FF) | high << 8;
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f = LOW;
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} else {
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LATD = (LATD & 0xFF9F) | 0x0020;
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LATB = (LATB & 0x80FF) | low << 8;
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f = HIGH;
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}
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}
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void delay(unsigned int ms) {
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resetCoreTimer();
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while (readCoreTimer() < ms * 20000);
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}
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int main() {
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TRISB = (TRISB & 0x80FF) | 0x0001;
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TRISD &= 0xFF9F;
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TRISC &= 0xBFFF;
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int counter = 0;
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int toggler = 0;
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while (1) {
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int i = 0;
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int sw0 = PORTB & 0x0001;
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do {
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send2displays(counter);
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delay(10);
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LATC &= 0xBFFF;
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if (toggler++ < 500) LATC |= 0x4000;
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} while (++i < (sw0 ? 20 : 50));
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counter += sw0 ? 1 : -1;
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if (counter < 0) {
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counter = 59;
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toggler = 0;
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}
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if (counter > 59) {
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counter = 0;
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toggler = 0;
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}
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}
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return 0;
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}
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