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42 lines
597 B
42 lines
597 B
#include <libopencm3/stm32/pwr.h>
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#include <libopencm3/stm32/rcc.h>
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#include <libopencm3/stm32/rtc.h>
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#include <macros.h>
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#include <rtc.h>
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int rtc_get_time(struct tm *time)
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{
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time_t unix_time;
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if (!time)
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return -1;
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unix_time = rtc_get_counter_val();
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if (!gmtime_r(&unix_time, time))
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return -1;
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return 0;
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}
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static int rtc_set_time(struct tm *time)
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{
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time_t unix_time;
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if (!time)
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return -1;
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unix_time = mktime(time);
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rtc_set_counter_val((uint32_t)unix_time);
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return 0;
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}
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int rtc_init(struct tm *time)
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{
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rtc_auto_awake(RCC_LSE, 0x7fff);
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rtc_set_time(time);
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return 0;
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}
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