1 | #define F_CPU 8000000UL
|
2 | #include <avr/io.h>
|
3 | #include <avr/interrupt.h>
|
4 | volatile uint8_t counter = 0;
|
5 | volatile uint8_t time_sec_ein;
|
6 | volatile uint8_t time_sec_zehn;
|
7 | volatile uint8_t time_min_ein;
|
8 | volatile uint8_t time_min_zehn;
|
9 | volatile uint8_t time_min_set;
|
10 |
|
11 |
|
12 | ISR (TIMER0_OVF_vect)
|
13 | {
|
14 | counter++;
|
15 |
|
16 | }
|
17 | int sec_ein()
|
18 | {
|
19 | if (counter==50)
|
20 | {
|
21 | time_sec_ein++;
|
22 | counter = 0;
|
23 | }
|
24 | if (time_sec_ein == 10)
|
25 | {
|
26 | time_sec_ein = 0;
|
27 | }
|
28 |
|
29 | }
|
30 |
|
31 |
|
32 | int main(void)
|
33 | {
|
34 |
|
35 | DDRA = 0xff;
|
36 | DDRC = 0xff;
|
37 |
|
38 | TIMSK |= (1 << TOIE0);
|
39 | TCCR0 |= (1<< CS00) | (1<< CS01);
|
40 | sei();
|
41 |
|
42 | while(1)
|
43 | {
|
44 | switch (time_sec_zehn)
|
45 | {
|
46 | case 1: PORTC |= (1<<PC4);break;
|
47 | case 2: PORTC |= (1<<PC6);break;
|
48 | case 3: PORTC |= (1<<PC4)|(1<<PC6);break;
|
49 | case 4: PORTC |= (1<<PC7);break;
|
50 | case 5: PORTC |= (1<<PC7)|(1<<PC4);break;
|
51 | case 6: PORTC |= (1<<PC7)|(1<<PC6);break;
|
52 | case 7: PORTC |= (1<<PC7)|(1<<PC6)|(1<<PC4);break;
|
53 | case 8: PORTC |= (1<<PC5);break;
|
54 | case 9: PORTC |= (1<<PC5)|(1<<PC4);break;
|
55 |
|
56 | }
|
57 |
|
58 | switch (time_sec_ein)
|
59 | {
|
60 | case 1: PORTC |= (1<<PC3);break;
|
61 | case 2: PORTC |= (1<<PC1);break;
|
62 | case 3: PORTC |= (1<<PC3)|(1<<PC1);break;
|
63 | case 4: PORTC |= (1<<PC0);break;
|
64 | case 5: PORTC |= (1<<PC0)|(1<<PC3);break;
|
65 | case 6: PORTC |= (1<<PC0)|(1<<PC1);break;
|
66 | case 7: PORTC |= (1<<PC0)|(1<<PC1)|(1<<PC3);break;
|
67 | case 8: PORTC |= (1<<PC2);break;
|
68 | case 9: PORTC |= (1<<PC2)|(1<<PC3);break;
|
69 | }
|
70 |
|
71 |
|
72 | switch (time_min_zehn)
|
73 | {
|
74 | case 1: PORTA |= (1<<PA3);break;
|
75 | case 2: PORTA |= (1<<PA1);break;
|
76 | case 3: PORTA |= (1<<PA3)|(1<<PA1);break;
|
77 | case 4: PORTA |= (1<<PA0);break;
|
78 | case 5: PORTA |= (1<<PA0)|(1<<PA3);break;
|
79 | case 6: PORTA |= (1<<PA0)|(1<<PA1);break;
|
80 | case 7: PORTA |= (1<<PA0)|(1<<PA1)|(1<<PA3);break;
|
81 | case 8: PORTA |= (1<<PA2);break;
|
82 | case 9: PORTA |= (1<<PA2)|(1<<PA3);break;
|
83 | }
|
84 |
|
85 | switch (time_min_ein)
|
86 | {
|
87 | case 1: PORTA |= (1<<PA4);break;
|
88 | case 2: PORTA |= (1<<PA6);break;
|
89 | case 3: PORTA |= (1<<PA4)|(1<<PA6);break;
|
90 | case 4: PORTA |= (1<<PA7);break;
|
91 | case 5: PORTA |= (1<<PA7)|(1<<PA4);break;
|
92 | case 6: PORTA |= (1<<PA7)|(1<<PA6);break;
|
93 | case 7: PORTA |= (1<<PA7)|(1<<PA6)|(1<<PA4);break;
|
94 | case 8: PORTA |= (1<<PA5);break;
|
95 | case 9: PORTA |= (1<<PA5)|(1<<PA4);break;
|
96 | }
|
97 |
|
98 | }
|
99 | }
|
