149 lines
2.7 KiB
C
Executable File
149 lines
2.7 KiB
C
Executable File
#include <avr/io.h>
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#include <util/delay.h>
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#define BITCOUNT 6
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#define D_PORT PORTC
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#define D_PIN PINC
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#define D_DDR DDRC
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#define D_CLK PC0
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#define D_STR PC1
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#define D_D1 PC2
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#define D_D2 PC3
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#define D_D3 PC4
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#define D_D4 PC5
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#define PIN_DCF PD0
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#define splitdigits( v, a, b ) \
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/*{{{*/ \
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a = 0; \
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b = v; \
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while (b >= 10) { \
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b -= 10; \
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a++; \
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} \
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/*}}}*/
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void Clock(void);
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void Strobe(void);
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void Clock(void) {
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D_PORT |= _BV(D_CLK);
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D_PORT &= ~_BV(D_CLK);
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}
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void Strobe(void) {
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D_PORT |= _BV(D_STR);
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D_PORT &= ~_BV(D_STR);
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}
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void ShowNumber(unsigned char z1,unsigned char z2, unsigned char z3, unsigned char z4) {
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unsigned char bit;
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for(bit=0;bit<BITCOUNT;bit++) {
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if( (z1 & _BV(bit)) == _BV(bit) ) {
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D_PORT |= _BV(D_D1);
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}
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else {
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D_PORT &= ~_BV(D_D1);
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}
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if( (z2 & _BV(bit)) == _BV(bit) ) {
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D_PORT |= _BV(D_D2);
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}
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else {
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D_PORT &= ~_BV(D_D2);
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}
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if( (z3 & _BV(bit)) == _BV(bit) ) {
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D_PORT |= _BV(D_D3);
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}
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else {
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D_PORT &= ~_BV(D_D3);
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}
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if( (z4 & _BV(bit)) == _BV(bit) ) {
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D_PORT |= _BV(D_D4);
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}
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else {
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D_PORT &= ~_BV(D_D4);
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}
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Clock();
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}
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Strobe();
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}
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int main(void) {
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unsigned char j = 0;
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unsigned char hour=14, minute=15, second=0;
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unsigned char *data;
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D_DDR = _BV(D_CLK) | _BV(D_STR) | _BV(D_D1) | _BV(D_D2) | _BV(D_D3) | _BV(D_D4);
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D_PORT = 0;
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while(1) {
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if(second < 59){
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second++;
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}
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else{
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second=0;
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if(minute < 59){
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minute++;
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}
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else{
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minute=0;
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if(hour < 23){
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hour++;
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}
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else {
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hour=0;
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}
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}
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}
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/* input and output */
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unsigned short int hms[] = {15,42, 23};
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unsigned short int rows[] = {0, 0, 0, 0};
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hms[0] = hour;
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hms[1] = minute;
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hms[2] = second;
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/* power array */
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unsigned short int pow[] = {1, 2, 4, 8, 16, 32};
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/* fill time array */
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unsigned short int a, b, i;
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unsigned short int time[] = {0, 0, 0, 0, 0, 0};
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for (i = 0; i < 3; i++) {
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splitdigits(hms[i], a, b);
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time[i*2] = a;
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time[i*2+1] = b;
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}
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/* fill rows array */
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unsigned short int r = 0, power = 0;
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for (r = 0; r < 4; r++) {
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int power = pow[r];
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for (i = 0; i < 6; i++) {
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if ((time[i] & power) > 0) {
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rows[r] += pow[i];
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}
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}
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}
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ShowNumber(rows[0],rows[1],rows[2],rows[3]);
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//ShowNumber(12,9,45,56);
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for(j=0;j<100;j++)
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_delay_ms(10);
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}
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}
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