examples/readwrite.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33

#include <stdio.h>
#include "ds1302.h"

int main(int argc, char ** argv) {

    uint8_t seconds = 0x00;
    uint8_t minute = 0x00;
    uint8_t writeProtect = 0xFF;
    uint8_t buffer[9];
    struct tm date;

    if(!bcm2835_init()) {
        printf("Unable to init bcm2835\n");
        return 0;
    }
    
    struct ds1302_spi_session session = {RPI_GPIO_P1_23, RPI_GPIO_P1_24, RPI_GPIO_P1_21 };
    ds1302_spi_session_start(&session);
    ds1302_set_writeprotect(&session, 0x00);

    seconds = ds1302_read_register(&session, DS1302_SECOND);
    minute = ds1302_read_register(&session, DS1302_MINUTE);
    printf("Seconds: 0x%X minute: 0x%X\n", seconds, minute);

    delay(1000);

    seconds = ds1302_read_register(&session, DS1302_SECOND);
    minute = ds1302_read_register(&session, DS1302_MINUTE);
    printf("Seconds: 0x%X minute: 0x%X\n", seconds, minute);

    ds1302_spi_session_end(&session);
    return 0;
}